EXHIBIT B SCOPE OF WORK - pttplc.com¸‚้อตกลงคุณธรรม/5TP... · PTT...

EPC CONTRACT

FOR

FIFTH TRANSMISSION PIPELINE PROJECT

Phase 2

EXHIBIT B

SCOPE OF WORK

PTT Public Company Limited Fifth Transmission Pipeline Project

EPC Contract Rev 0 Scope of Work

Page 1 of 117

CONTENTS

1.0 SCOPE OF DOCUMENT ................................................................................ 6

1.1 DEFINITION ............................................................................................... 6

1.2 OVERVIEW OF ALL PHASES OF THE PROJECT .................................... 6

1.3 PHASE 1 SCOPE OF WORK ................................................................... 12

1.4 PHASE 2 SCOPE OF WORK ................................................................... 19

1.5 FUTURE SCOPE ...................................................................................... 27

2.0 SUMMARY OF CONTRACTOR RESPONSIBILITIES ................................. 28

3.0 PERMIT ACQUISITION ................................................................................ 33

3.1 GOVERNMENT AND PRIVATE PERMITS .............................................. 33

3.2 GENERAL ................................................................................................ 33

4.0 SURVEYING ................................................................................................. 34

4.1 WORK PERFORMED UNDER THIS SECTION ....................................... 34

4.2 TOPOGRAPHIC AND ALIGNMENT SURVEY OF PIPELINE ROUTE ..... 35

4.3 CLASS LOCATION SURVEY ................................................................... 35

4.4 SITE SURVEYS ........................................................................................ 35

4.5 CROSSING SURVEYS ............................................................................ 35

4.6 PRECONSTRUCTION SURVEY .............................................................. 35

4.7 AS-BUILT SURVEY .................................................................................. 36

5.0 GEOTECHNICAL INVESTIGATION ............................................................. 40


5.2 GENERAL ................................................................................................ 40

5.3 SOIL STABILITY AND SOIL SETTLEMENT STUDY ............................... 40



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6.0 ENGINEERING ............................................................................................. 41


6.2 GENERAL ................................................................................................ 41

6.3 MECHANICAL DESIGN ........................................................................... 49

6.4 CIVIL DESIGN .......................................................................................... 53

6.5 ELECTRICAL DESIGN ............................................................................. 55

6.6 CONTROL SYSTEM AND INSTRUMENTATION DESIGN ...................... 56

6.7 SCADA / COMMUNICATION SYSTEM DESIGN ..................................... 59

6.8 CP AND AC MITIGATION DESIGN .......................................................... 61

7.0 SAFETY, HEALTH AND ENVIRONMENTAL COMPLIANCE ...................... 64


7.2 GENERAL ................................................................................................ 64

7.3 PREVENTION OF AIR AND WATER POLLUTION .................................. 65

7.4 NOISE REDUCTIONS DURING CONSTRUCTION ................................. 66

7.5 WORKING TIME ....................................................................................... 66

7.6 DISPOSAL OF WASTE MATERIAL ......................................................... 66

7.7 HANDLING AND STORAGE OF FUELS AND HAZARDOUS MATERIALS66

7.8 RIVERS OR STREAMS ............................................................................ 67

7.9 WILDLIFE PROTECTION ......................................................................... 67

7.10 FIRE PREVENTION AND SUPPRESSION .............................................. 67

7.11 SOIL EROSION ........................................................................................ 68

7.12 PUBLIC HEALTH ...................................................................................... 68

8.0 QUALITY ASSURANCE AND QUALITY CONTROL ................................... 69

9.0 PROCUREMENT AND SUBCONTRACTS ................................................... 71



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9.2 GENERAL ................................................................................................ 71

9.3 PTT PROVIDED MATERIAL .................................................................... 72

9.4 PURCHASE ORDERS ............................................................................. 73

9.5 EXPEDITING ............................................................................................ 73

9.6 CONTRACTOR QUALITY SURVEILLANCE OF PROCURED MATERIAL74

9.7 THIRD PARTY NDT ................................................................................. 76

9.8 TEMPORARY FACILITIES PROVIDED TO PTT AND CONSULTANT .... 76

9.9 SPARE PARTS ......................................................................................... 79

10.0 WORK SPACE ACQUISITION ..................................................................... 80


10.2 GENERAL ................................................................................................ 80

10.3 PLANNING AND NOTIFICATION ............................................................. 80

10.4 PTT PROVIDED WORKSPACE ............................................................... 82

10.5 SITE OBSTRUCTIONS ............................................................................ 82

10.6 INTERFACE WITH OTHER PARTIES ..................................................... 82

11.0 CONSTRUCTION .......................................................................................... 84


11.2 CONSTRUCTION MANAGEMENT .......................................................... 84

11.3 CIVIL AND MECHANICAL ........................................................................ 85

11.4 SCADA, INSTRUMENTATION AND COMMUNICATIONS ...................... 89

11.5 CP AND AC MITIGATION ........................................................................ 90

11.6 ELECTRICAL............................................................................................ 91

11.7 MATERIALS TESTING AND NON-DESTRUCTIVE EXAMINATION ....... 92



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11.8 SAFETY .................................................................................................... 92

11.9 EXCAVATION ALERT .............................................................................. 94

11.10 CONSTRUCTION TRAFFIC AND ACCESS ............................................ 94

12.0 PTT STAFF TRAINING ................................................................................. 95


12.2 GENERAL ................................................................................................ 95

13.0 PRECOMMISSIONING ................................................................................. 98


13.2 GENERAL ................................................................................................ 98

13.3 HYDROSTATIC TESTING ....................................................................... 98

13.4 DEWATER AND DRY ............................................................................... 99

13.5 CALIPER PIG SURVEY ........................................................................... 99

13.6 INSTRUMENTATION ............................................................................. 100

13.7 MECHANICAL COMPLETION................................................................ 100

14.0 COMMISSIONING ....................................................................................... 101

14.1 WORK PERFORMED UNDER THIS SECTION ..................................... 101

14.2 GENERAL .............................................................................................. 101

14.3 PLAN AND PROCEDURE ...................................................................... 101

14.4 COMMISSIONING ACTIVITIES ............................................................. 102

14.5 30-DAY TESTING/OPERATION PERIOD .............................................. 102

15.0 PROJECT EXECUTION PLAN ................................................................... 103

16.0 PROJECT PROCEDURES AND CONTROLS ............................................ 103

16.1 PROJECT TEAM AND PROJECT OFFICE ............................................ 103

16.2 CORRESPONDENCE ............................................................................ 104

16.3 MEETINGS ............................................................................................. 105



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16.4 REPORTS .............................................................................................. 106

16.5 SCHEDULE ............................................................................................ 110

16.6 DOCUMENT CONTROL ........................................................................ 111

17.0 FINAL DOCUMENTATION ......................................................................... 115

18.0 COMMUNITY RELATIONS MANAGEMENT .............................................. 116

APPENDIX A: SUPPLEMENTARY ....................................................................... 117



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1.0 SCOPE OF DOCUMENT

1.1 DEFINITION

Block Valve Station: Block Valve Station shall be as below

BV5.1, BV5.2, BV5.3, BV5.4, BV5.5, BV5.6, BV5.7, BV5.8, BV5.9, BV5.10, BV5.11, BV5.12, BV5.13, BV5.14, BV5.15, BV5.16, BV5.17, BV5.18, BV5.19, BV5.20, BP1, BP2, BP3 and BP4

Launching and Receiving Station: Launching and Receiving Station shall be as below

GDF4, GDF5, BV5.8, RA6MXS, BV5.6, and BP4

Midline Block Valve Station: Midline Block Valve Station shall be as below

BV5.8

Facility Station: Facility Station shall be as below

GDF4, GDF5, TP5MXS, WNMR and RA6MXS

1.2 OVERVIEW OF ALL PHASES OF THE PROJECT

PTT Public Company Limited (PTT) intends to build a new onshore pipeline system from Rayong Province to RA6 (Block Valve Station 6 of existing Ratchaburi-Wang Noi Pipeline) located in Nonthaburi Province in order to secure gas supply to power plants and other consumers along the route. The new pipeline system is called the “Fifth Transmission Pipeline”, abbreviated to “5TP”.

The pipeline system shall be designed to receive gas from existing LNG Terminal located in Aow Ta Kuan, Map Ta Phut, Rayong and also to receive pure gasified LNG from a new LNG terminal located in Ban Nongfab, Map Ta Phut, Rayong, which is approximately 5.5 km northwest of the existing terminal.

Whilst this overview provides introduction to the 5TP Project, this Scope of Work only relates to Phase 1 and 2 of the 5TP Project. The remaining Scope for future phases will be addressed elsewhere.

The pipeline system shall include, as technically required, gas dispatching facilities, gas mixing facilities, Pig launcher and receiver stations, midline station, intermediate Block Valve Stations, terminal stations over pressure protection systems, filtering stations, flow/pressure control stations, metering stations, sales taps, cathodic protection systems, control systems, telecommunication facilities, SCADA, and interfaces with existing facilities and systems from all required aspects.

The pipeline system shall be designed to comply with ASME B31.8, Gas Transmission and Distribution Piping Systems. Linepipe shall be procured in



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accordance with API-Spec-5L. All equipment and material installed in the new 5TP pipeline system shall follow PTT’s Approved Equipment and Material List (AEML) for this project.

As listed in Contract, free issue equipment and materials shall be issued to the EPC Contractor by PTT. All other equipment and material required to complete the Work shall be supplied by the EPC Contractor.

The pipeline system will be controlled and operated through PTT’s existing Operation Centre (OC) in Chonburi and its dedicated back-up Control Centers.

The Fifth Transmission Pipeline (5TP) Project comprises approximately 350 kilometers of 42 inch main pipeline and 57 kilometers of 36 inch branch pipeline to Bang Pakong Power Plant together with auxiliary facilities and systems, and is divided into four phases, Phases 1 to 3 and Future Phase.

The following sub sections provide a more detailed description of these facilities. The following terms and applicable abbreviations are used throughout this Scope:

5TP - Fifth Transmission Pipeline

BP4 - Bang Pakong Receiver Station

BV5.x or BPx - Block Valve Station Number 5.x for 5TP

BVS - Block Valve Station

COE - Council of Engineers

CP - Cathodic Protection

DBM - Design Basis Manual

DOH - Department of Highways

EGAT - Electricity Generating Authority of Thailand

EIA - Environmental Impact Assessment

FOC - Fibre Optic Cable

FTP - Fourth Transmission Pipeline

GDF - Gas Despatching Facility

HDD - Horizontal Directional Drilling

HDPE - High Density Polyethylene



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IGMS - Intelligent Gas Mixing System

MEA - Metropolitan Electricity Authority

MOC - Management of Change

NOA - Notice of Award

NPS - Nominal Pipe Size

NTP - Notice to Proceed

OC - Chonburi Operations Centre

OCS - Onshore Compressor Station

ONEP - Office of Natural Resources and Environmental Policy and Planning

Pan Tong - Existing SCADA System Back Up Station

PEA - Provincial Electric Authority

RA6 - RA6 Station (Existing)

RA6MXS - RA6 Mixing Station (New 5TP Facility)

ROW - Right of Way

RRPP - RA#6 - Ratchaburi Pipeline Project

TOT - Telephone Organization of Thailand

TP5MXS - TP5 Mixing Station

WCS - Wang Noi Compressor Station

WNMR - Wang Noi Metering and Regulating Station



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1.2.1 5TP PHASE 1

The purpose of Phase 1 is to deliver gas from the existing LNG Terminal (Aow Ta Kuan, Map Ta Phut) to support the anticipated demands of new IPP’s (located along the 5TP route), and Bang Pakong Power Plant (which will be supplied from 5TP Phase 1).

5TP Phase 1 is planned to be mechanically completed (MC) by 36 months after Contract Award.

5TP Phase 1 commences at the FTP GDF (Fourth Transmission Pipeline Gas Dispatching Facility) adjacent to existing LNG Terminal, originating from the existing FTP Header.

5TP Phase 1 terminates in a temporary capped end fitting downstream of the Midline Station (outside of the Midline Station boundary fence line).

The Scope of Work for Phase 1 includes:

The 42 inch main pipeline of approximately 150 kilometers from GDF4 (adjacent to FTP GDF) to the 5TP Midline Block Valve Station (BV5.8), located in Chachoengsao Province.

The 36 inch branch pipeline from BV5.6 to Bang Pakong Power Plant, of approximately 57 kilometers.

GDF4 Launching Station (GDF4), located adjacent to FTP GDF, including: GDF4 Pig Launcher station, metering station, flow/pressure control station, tie-ins to receive gas from the existing LNG Terminal Phases 1 and 2, and future tie-in valves for receiving gas from LNG Terminal Phase 3 (5TP Future Phase).

5TP Mixing Station (TP5MXS), located approximately 4 kilometers north from GDF4, is required to receive and mix the gas from two sources (existing and future LNG Terminals). Phase1 comprises a 42” direct pipeline through connection and bypass piping with provision for further tie-ins as indicated on PFD No. A3-1504.01-010-004. The facilities, which are related to the future mixing facility, IGMS and 5TP launcher/receiver stations, will be installed during 5TP Phase 3; however all necessary provisions for those future installations such as future tie-in valves, site preparation, fencing, etc. shall be included in 5TP Phase 1.

The Midline Block Valve Station (BV5.8) that will include the Pig Receiver station for the 42 inch main pipeline, Pig Launcher station for the 42 inch main pipeline.

The Pig Launcher station for the 36 inch branch pipeline to Bang Pakong (BV5.6), in addition to the typical 5TP Block Valve Station facilities.

Eight Block Valve Stations (BV5.1 – BV5.8).

Four Block Valve Stations (BP1 – BP4) along the 36 inch branch pipeline to Bang Pakong.



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The terminal station of the 36 inch branch pipeline, BP4, includes a Pig Receiver station and sales taps.

Pig Receiver at BP4 as indicated on PFD No. A3-1504.01-010-008.

1.2.2 5TP PHASE 2

The purpose of Phase 2 is to deliver gas from the 5TP Midline Block Valve Station (BV5.8), to Wang Noi Metering & Regulating Station (WNMR), which is located adjacent to Wang Noi Compressor Station and to RA6 (end terminal of 5TP Phase 2).

5TP Phase 2 is planned to be mechanically completed (MC) by 36 months after Contract Award.

The 5TP Phase 2 commences by tie-in at the temporary capped termination of 5TP Phase 1, located downstream of the Midline Block Valve Station (outside of the Midline Station boundary fence).

The 5TP Phase 2 terminates by tie-in to existing facilities at RA6 Station as indicated on PFD No. A3-1504.01-010-010.


The 42 inch main pipeline of approximately 200 kilometers (50 m from downstream of boundary fence of 5TP Midline Block Valve Station (BV5.8) to RA6 Mixing Station (RA6MXS)) including a 36 inch branch line from the 42 inch main pipeline into WNMR (located approximately 114 kilometers downstream from the Midline Station).

Twelve Block Valve Stations (BV5.9 – BV5.20).

WNMR includes a filtering station, metering station, flow/pressure control station, over pressure protection system, sales taps and a tie-in to the existing Wang Noi compressor station mixing header as indicated on PFD No. A3-1504.01-010-009.

RA6MXS includes a Pig Receiver Station, filtering station, metering station, flow / pressure control station, mixing station (IGMS), mixing header, sales taps, and tie-ins to existing facilities as referred above.

1.2.3 5TP PHASE 3 (Future)

The purpose of Phase 3 is to deliver gas from the new LNG Terminal (located in Ban Nongfab, Map Ta Phut, which is approximately 5.5 km northwest of the existing terminal) to TP5MXS in order to mix with gas supplied from the existing LNG Terminal, then deliver the mixed gas to power plants and other consumers along the 5TP route.

5TP Phase 3 is planned to be mechanically completed (MC) by the Early of Year 2022.



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5TP Phase 3 shall commence from a New LNG Terminal and pass via GDF5 terminating at TP5MXS with tie-in at locations previously prepared under 5TP Phase 1 as indicated in PFD Nos. 1504.01-010-003 and 1504.01-010-004.


The 42 inch main pipeline of approximately 7 kilometers, from GDF5 to TP5MXS.

GDF5 Pig Launching Station includes main facilities; over pressure protection system, metering station, flow / pressure control station, gas mixing facilities, IGMS launcher station, sales taps, future tie-in valves, and tie-ins to receive gas from the new LNG Terminal.

The extended TP5MXS includes gas streams mixing facility, IGMS metering station, flow/pressure control station, launcher station, receiver station, and future tie-in valves. The extended TP5MXS shall receive gas from GDF5 to mix with gas from GDF4 before delivering the mixed gas back into the pipeline system of 5TP Phase 1.

1.3 PHASE 1 SCOPE OF WORK

1.3.1 GDF4 Launching Station (GDF4) - Phase 1

Expanded GDF4 facilities shall be installed under 5TP Phase 1.

Refer to Design Basis Manual for overall design criteria, also design specifications and P&ID Drawings for system details, and civil layout drawings for the proposed layout and system details for the GDF4 facilities.

GDF4 will be manned with security guards 24 hours a day. DCS control (local), SCADA control (remote) and electrical and instrumentation equipment to serve the GDF4 shall be provided and installed by the Contractor for 5TP Phase 1 at the existing OCS4 control building.

The existing Advance Process Control (APC) shall be modified and add signals from new facilities.

Blow down vent systems at the GDF4 shall be tied into the existing OCS4 flare system by the Contractor for 5TP Phase 1.

The Contractor for 5TP Phase 1 shall verify maximum load of the existing OCS4 flare system (i.e. FTP flare load). The maximum load of the FTP flare load shall be used for design of blow down vent system of the GDF4.

A new access road to serve the GDF4 for heavy transportation during construction shall be prepared by the Contractor for 5TP Phase 1. Access roads for maintenance and operational access to the facilities and equipment within the GDF4 shall be



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provided and tied into existing OCS4 access road system by the Contractor for 5TP Phase 1.

The Contractor for 5TP Phase 1 shall provide new pipe rack for the GDF4 above ground piping, together with the GDF4 above ground cable tray, to connect to the existing OCS4 pipe rack. The Contractor for 5TP Phase 1 shall verify load of the existing OCS4 pipe rack as part of design for the GDF4 pipe rack.

The Contractor for 5TP Phase 1 shall provide temporary electrical supply during construction. For permanent electrical supply, the Contractor for 5TP Phase 1 shall provide metered electrical supplies for power and lighting systems connected from the existing OCS4 facilities. This shall include all necessary permits and co-ordination with the electrical authorities.

Within the GDF4 facility access manholes for access to instrumentation and electrical cabling systems shall be incorporated into the installation by the Contractor for 5TP Phase 1.

GDF4 facility shall utilize existing OCS4 UHF radio and antenna tower facilities.

A closed and open drainage system shall be provided by the 5TP Phase 1 Contractor, to serve the GDF4 station and it shall be tied into the existing drainage system.

At the GDF4, portable water supply, firewater supply, power supply, and instrument air supply (including local accumulator vessel at the GDF4), shall be provided by the Contractor for 5TP Phase 1 and tied into and interfaced with existing OCS4 systems and equipment.

Portable water for the GDF4 shall be connected by Contractor for 5TP Phase 1 from the OCS4 existing portable water supply. A meter shall be provided and installed at the tie-in location by the Contractor for 5TP Phase 1. Water supply for safety shower/ eyewash and general-purpose utility stations within the GDF4 shall be provided and installed by the Contractor for 5TP Phase 1. Water supply to the eyewash station shall generally be buried to avoid solar heating. All exposed pipe to the shower/eyewash stations shall be insulated.

An underground fire water piping system shall be provided and installed by the Contractor for 5TP Phase 1 at the GDF4 facility perimeter. The piping shall complete a ring main loop around the GDF4 facility with branches to above ground hydrant facilities. The fire water piping system installed by the Contractor for 5TP Phase 1 shall be tied in to the OCS4 system at designated and approved tie-in locations. Tie-in isolation valves, hydrants, hose boxes, portable and mobile extinguishers shall be provided and installed by Contractor for 5TP Phase 1.

CCTV cameras, CCTV server, communication cables and 50” LED TV shall be provided and installed at the GDF Facility in order to monitor at the OCS4 control room as well as monitor over PTT Network.



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A fire & gas detection, alarm and monitoring system to NFPA Standards, shall be installed by the Contractor for 5TP Phase 1 at the GDF4. A safety alarm will warn the personnel in the field and the OCS4 control room of gas leakage. Analogue signals from gas detectors to the DCS, via Fire & Gas panel, shall enable operators to continuously monitor gas levels. Detectors shall be located in the areas where gas leaks or discharges may be anticipated to occur.

Contractor for 5TP Phase 1’s Scope includes responsibility to design and install the Fire & Gas system, provide cable and install the cable up to the new Fire & Gas system with MIMIC panel, including interconnecting cable to the existing OCS4 Fire & Gas panel at the existing OCS4 control building. The installed system design including modifications to existing systems shall enable an operator to monitor the GDF4 Fire & Gas status from the existing OCS4 Fire & Gas panel and also from the DCS HMI.

1.3.2 TP5 Mixing Station (TP5MXS) – Phase 1

Refer to Design Basis Manual for overall design criteria, also design specifications and P&ID Drawings for system details, and typical civil layout Drawings for the proposed station layout according to TP5MXS Phase 1 and Phase 3 Work Scopes.

Commencing at start-up under 5TP Phase 1, TP5MXS will be manned with security guards 24 hours a day. Amenities to accommodate personnel shall be provided; toilet facilities, air conditioning, portable water, power, communications and furniture. A building shall be installed by the Contractor for 5TP Phase 1.

5TP Phase 1 Scope includes design and construction of new access roads designed at the TP5MXS, including a connection to the existing main road and access to the facilities and equipment within the TP5MXS.

At TP5MXS, the Contractor for 5TP Phase 1 shall arrange for electricity to be supplied from Provincial Electricity Authority of Thailand (PEA), closest public power line. The station shall include transformer installation, and power and lighting distribution systems to the TP5MXS facilities.

Within the station access manholes for access to instrumentation and electrical cabling systems shall be incorporated by the Contractor for 5TP Phase 1.

TP5MXS facility scope of work shall include UHF Radio and antenna tower facility, portable water supply to buildings and facilities, and a CCTV camera system, by the Contractor for 5TP Phase 1. The portable water system shall include connection to public main supply, water tanks, pumps and distribution system. If there is no public water supply available, then a deep well water supply for underground water shall be provided by the Contractor for 5TP Phase 1.

A fire alarm panel, alarm and monitoring system to NFPA Standards, shall be installed at TP5MXS, by the Contractor for 5TP Phase 1. Smoke detectors shall be part of the fire alarm panel.



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An open drainage system shall be provided under the 5TP Phase 1 Scope to serve the TP5MXS area perimeter and connected to the local drainage system or infiltration pits.

All remaining Scope of Work will be undertaken during the future Phase 3 Development. This scope is not addressed in details under the present scope, but is summarized as follows:

A new control building shall be built for equipment of missing system including Local Process Control System (DCS), remote control system SCADA/RTU, Electrical system and Telecom system.

The TP5MXS facilities shall be extended to include a gas streams mixing facility, IGMS, metering station, flow/pressure control station, launcher station, receiver station, and future tie-in valves.

A Blow down vent system at TP5MXS will be provided by the Contractor including a Vent Stack located within the station, incorporating a silencer unit.

Additional access roads shall be designed and constructed in order to provide full access to the facilities and equipment within the installation at the TP5MXS.

Piping arrangements have been developed as typical layout drawings, indicating typical local blow down vent arrangement and access road requirements as they will be shown on the typical Drawings.

Within the station, additional access manholes for access to instrumentation and electrical cabling systems shall be incorporated as part of the 5TP Phase 3 Contract Scope.

Design and installation of UHF Radio and antenna tower facility, portable water supply to buildings and facilities, and a CCTV camera system.

Extension of the portable water distribution and drainage system network installed under the 5TP Phase 1 Contract Scope, in order to serve the new TP5MXS facilities. Water will then be used to supply a safety shower/ eyewash and the general-purpose utility stations within the TP5MXS, which shall be provided and installed by the Contractor for 5TP Phase 3.

A fire & gas detection, alarm and monitoring system to NFPA Standards, will be installed at the TP5MXS.

1.3.3 Block Valve Stations - Phase 1

The Scope of Work for Contractor for 5TP Phase 1 shall include design and installation for BV Stations BV5.1 to BV5.7, Midline Station BV5.8 including launcher / receiver facilities and BV Stations BP1 to BP4 inclusive.



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Refer to Design Basis Manual for overall design criteria, also design specifications and P&ID Drawings for system details, and typical civil layout Drawings for the proposed station layout.

Block Valve Stations will be unmanned with security guards 24 hours a day. Amenities to accommodate personnel shall be provided, portable water, communications, toilet facilities air conditioning and furniture. A SCADA control building shall be installed by the Contractor at each Block Valve Station.

Along the 5TP route, Block Valve Stations are numbered sequentially 5.1 through to 5.8; commencing downstream of GDF4. For the Bang Pakong line, the Block Valve Stations are numbered sequentially from BP1 through to BP4, commencing upstream of BV5.6.

Blow down vents at all BV Stations will be constructed within the station limits, by the Contractor who is responsible for that BV Station Work. Each BV Station Vent Stack shall incorporate a silencer unit.

New access roads shall be designed and constructed at each Block Valve Station including the connection to the existing main road and access to the facilities and equipment within the Block Valve Station, by the Contractor who is responsible for that BV Station Work.

Piping arrangements, pipe supports and working platforms for a typical Block Valve Station have been developed as typical layout drawings, indicating typical local blow down vent arrangement. Approximate locations for each Block Valve Station have been identified. However, the exact location of each station will not be finalized until the land has been acquired. Indicative design quantities, such as Site preparation (earth cut and fill) requirements, access road requirements, for each Block Valve Station are shown on the typical Drawings.

At Block Valve Stations, the Contractor who is responsible for that BV Station Work shall arrange for electricity to be supplied from Provincial Electricity Authority of Thailand (PEA), closest public power line. Each Block Valve Station shall include transformer installation, and power and lighting distribution systems to the BV Station facilities.

Within the station, access manholes for access to instrumentation and electrical cabling systems shall be incorporated by the Contractor who is responsible for that BV Station Work.

Each Block Valve Station facility scope of Work shall include UHF Radio and antenna tower facility, portable water supply to buildings and facilities, and a CCTV camera system, installed by the Contractor. The portable water system shall include connection to public main supply, water tanks, pumps and distribution system. If there is no public water supply available, then a deep well water supply for underground water shall be provided by the Contractor.



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An open drainage system shall be provided to cover the BV Station area perimeter and connected to the local drainage system or infiltration pits.

A fire alarm panel including smoke detectors, manual call point, beacon, horn/stobe, alarm and monitoring system to NFPA Standards shall be installed at Block Valve Station, by the Contractor for 5TP Phase 1.

1.3.4 Block Valve Station with Launcher of 36” Pipeline (BV 5.6) – Phase 1

The Block Valve Station BV5.6 of the 5TP shall be constructed by the Contractor for 5TP Phase 1. In addition to the typical Block Valve Station requirements described above, Pig Launcher facilities shall be provided. The 36” pipeline launching facility shall be connected from 36 inch branch from the bypass of 42 inch mainline valve.

An emergency safety shower with eyewash facility shall also be provided and installed by the Contractor for 5TP Phase 1 at the BV5.6. Water supply to the facility shall generally be buried to avoid solar heating. All exposed pipe to the shower/eyewash facility shall be insulated.

A fire alarm panel including smoke detectors, manual call point, beacon, horn/stobe, alarm and monitoring system to NFPA Standards, shall be installed at Block Valve Station, by the Contractor for 5TP Phase 1. A fire & gas detection and monitoring system for process area shall be installed by the Contractor for 5TP Phase 1 at the BV5.6. A safety alarm will warn the personnel in the field and at the new control room of gas leakage. Alarm and status shall be transmitted to RTU via Fire & Gas panel, and shall enable operators to continuously monitor gas levels. Detectors shall be located in the areas where gas leaks or discharges may be anticipated to occur. Contractor for 5TP Phase 1 has the responsibility to design and install the detectors system, provide cable and install the cable up to the Fire & Gas panel at the new control building.

1.3.5 Block Valve Station (BV5.8) – Phase 1

The Midline Block Valve Station (BV5.8) of the 5TP shall be constructed by the Contractor for 5TP Phase 1. In addition to the typical Block Valve Station requirements described above, Pig Launcher and Pig Receiver facilities shall be provided. The 5TP main pipeline block valve will be installed aboveground. Isolated tie-in branches for the future connection of Midline Compressor Station piping shall also be provided.

An emergency safety shower with eyewash facility shall also be provided and installed by the Contractor for 5TP Phase 1 at BV5.8. Water supply to the facility shall generally be buried to avoid solar heating. All exposed pipe to the shower/eyewash facility shall be insulated.

CCTV cameras and CCTV server shall be provided and installed at the BV5.8. CCTV shall be connected to PTT Network for monitoring over PTT Network.



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A fire alarm panel including smoke detectors, manual call point, beacon, horn/stobe, alarm and monitoring system to NFPA Standards, shall be installed at Block Valve Station by the Contractor for 5TP Phase 1. A fire & gas detection and monitoring system for process area shall be installed by the Contractor for 5TP Phase 1 at BV5.8. A safety alarm will warn the personnel in the field and at the new control room of gas leakage. Alarm and status shall be transmitted to RTU via Fire & Gas panel, and shall enable operators to continuously monitor gas levels. Detectors shall be located in the areas where gas leaks or discharges may be anticipated to occur. Contractor for 5TP Phase 1 has the responsibility to design and install the detectors system, provide cable and install the cable up to the Midline Block Valve Station Fire & Gas panel at the new control building.

1.3.6 Bang Pakong Receiving Station (BP4) – Phase 1

BP4 of the 5TP shall be constructed by the Contractor for 5TP Phase 1. In addition to the typical Block Valve Station requirements described above, Pig Receiver facilities shall be provided. The 5TP main pipeline block valve will be installed aboveground.

An emergency safety shower with eyewash facility shall also be provided and installed by the Contractor for 5TP Phase 1 at BP4. Water supply to the facility shall generally be buried to avoid solar heating. All exposed pipe to the shower/eyewash facility shall be insulated.

A fire alarm panel including smoke detectors, manual call point, beacon, horn/stobe, alarm and monitoring system to NFPA Standards, shall be installed at BP4 by the Contractor for 5TP Phase 1. A fire & gas detection and monitoring system for process area shall be installed by the Contractor for 5TP Phase 1 at BP4. A safety alarm will warn the personnel in the field and at the new control room of gas leakage. Alarm and status shall be transmitted to RTU via Fire & Gas panel, and shall enable operators to continuously monitor gas levels. Detectors shall be located in the areas where gas leaks or discharges may be anticipated to occur. Contractor for 5TP Phase 1 has the responsibility to design and install the detectors system, provide cable and install the cable up to the Block Valve Station Fire & Gas panel at the new control building.

1.3.7 SCADA and Communications Facilities – Phase 1

SCADA and communications facilities shall be provided to support control and operation of the pipeline and related facilities. The central hub of the SCADA and communication system will be the PTT Operations Centre at Chonburi, Thailand, with a backup control center at Pan Tong.

Major systems to be incorporated at each Phase of the 5TP Work include:

Fiber optics based communication system along the gas pipeline, consisting of two buried HDPE ducts, manholes/pull boxes, a multicore fiber optic cable, cable splicing/termination hardware and optical transmission equipment and a leased line as the back-up system. Under 5TP Phase 1 Scope, this system shall start in the Control Building within OCS4 (GDF4) then interconnect with all pipeline block valve stations and the 5TP Midline Station, and Bang Pakong Receiver Station with leased line backup system from BP4 to Chonburi Operations Centre (OC).



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The system shall provide voice and data communications between the Chonburi Operations Centre, Pantong and the facilities along the pipeline.

UHF radio system consisting of repeaters/towers located at each block valve station or as otherwise determined by the radio communication coverage study. The system shall include portable handheld radios. This system will be fully integrated into the existing PTT communications system.

Interconnections between the fiber optics and UHF system and the Chonburi Operations Centre.

Interconnections between IP/PBX system and PTT head office.

New CCTV server shall be provided at OCS4 and BV5.8. Interconnections between CCTV new and PTT existing systems.

Modifications to the existing SCADA host system for retrieval and management of pipeline related operating information from field devices via RTU’s. Communications to the pipeline RTU’s shall be provided as part of the fiber optics communication system.

Modifications to all relevant existing SCADA work stations for retrieval and management of pipeline and facilities such as OCS4, WNMR (existing WNMR and WCS), and RA6.

RTU’s at block valve stations, receiving stations, metering & regulating stations, and mixing stations shall provide remote monitoring and control from the pipeline SCADA control centers at Chonburi and Pan Tong (Existing SCADA System Back Up Station).

1.4 PHASE 2 SCOPE OF WORK

1.4.1 Block Valve Stations - Phase 2

Scope of Work for the Contractor for 5TP Phase 2, shall include design and installation for BV Stations BV5.9 to BV5.20.

Refer to Design Basis Manual for overall design criteria, also design specifications and P&ID Drawings for system details, and typical civil layout Drawings for the proposed station layout.

Block Valve Stations will be unmanned with security guards 24 hours a day. Amenities to accommodate personnel shall be provided, portable water, communications, toilet facilities, air conditioning and furniture. A SCADA control building shall be installed by the Contractor at each Block Valve Station.

Along the 5TP route, Block Valve Stations are numbered sequentially BV5.9 through to BV5.20; commencing downstream of BV5.8.



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Blow down vents at all BV Stations will be constructed within the station limits, by the Contractor who is responsible for that BV Station Work. Each BV Station Vent Stack shall incorporate a silencer unit.

New access roads shall be designed and constructed at each Block Valve Station including the connection to the existing main road and access to the facilities and equipment within the Block Valve Station, by the Contractor who is responsible for that BV Station Work.

Piping arrangements, pipe supports and working platforms for a typical Block Valve Station have been developed as typical layout drawings, indicating typical local blow down vent arrangement. Approximate locations for each Block Valve Station have been identified. However, the exact location of each station will not be finalized until the land has been acquired. Indicative design quantities, such as Site preparation (earth cut and fill) requirements, access road requirements, for each Block Valve Station are shown on the typical Drawings.

At Block Valve Stations, the Contractor who is responsible for that BV Station Work shall arrange for electricity to be supplied from Provincial Electricity Authority of Thailand (PEA), closest public power line. Each Block Valve Station shall include transformer installation, and power and lighting distribution systems to the BV Station facilities.

Within the station, access manholes for access to instrumentation and electrical cabling systems shall be incorporated by the Contractor who is responsible for that BV Station Work.

Each Block Valve Station facility scope of Work shall include UHF Radio and antenna tower facility, portable supply to buildings and facilities, and a CCTV camera system, installed by the Contractor. The portable system shall include connection to public main supply, water tanks, pumps and distribution system. If there is no public water supply available, then a deep well water supply for underground water shall be provided by the Contractor.

An open drainage system shall be provided to cover the BV Station area perimeter and connected to the local drainage system or infiltration pits.

A fire alarm panel including smoke detectors, manual call point, beacon, horn/stobe, alarm and monitoring system to NFPA Standards, shall be installed at Block Valve Station, by the Contractor for 5TP Phase 2.

1.4.2 Wang Noi Metering and Regulating Station (WNMR) – Phase 2

The new facility of 5TP in WNMR shall be installed under 5TP Phase 2.

Refer to Design Basis Manual for overall design criteria, also design specifications and P&ID Drawings for system details, and civil layout Drawings for the proposed for proposed layout and system details for the WNMR.



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WNMR will be manned with security guards 24 hours a day. Amenities to accommodate personnel shall be provided, portable water, communications, toilet facilities, air conditioning and furniture. A SCADA control building shall be installed by the Contractor at WNMR.

Contractor shall provide Control (DCS), Safety Instrument System (SIS), interface with existing DCS of WCS and tie-in of existing DCS, modification of DCS graphic, MIMIC panel communication and FOC interface.

Although Operating of all facility shall be able at new WNMR control building, additional HIS shall be provided at existing DCS console of WCS. Control activity shall be able to handle fully from WCS operator.

Piping vent systems at the WNMR shall be tied into the existing vent system of Nakhon Sawan Gas Pipeline at WNMR by the Contractor for 5TP Phase 2.

The metering and Control run shall be equipped with shelter and overhead crane as indicated in drawing. The overhead crane shall be explosion proof type and can safely handle the maximum equipment load.

A new access road to serve the WNMR for heavy transportation during construction shall be prepared by the Contractor for 5TP Phase 2. Permanent access roads for maintenance and operational access to the facilities and equipment within the WNMR shall be provided and tied into existing WNMR and Wang Noi Compressor Station access road system.

The Contractor for 5TP Phase 2 shall arrange for electricity to be supplied from Provincial Electricity Authority of Thailand (PEA), closest public power line. The WNMR station shall include transformer installation, and power lighting distribution systems to the WNMR facilities.

Within the station, access manholes for access to instrumentation and electrical cabling systems shall be incorporated into the installation by the Contractor for 5TP Phase 2.

The new facility of 5TP in WNMR scope of work shall include UHF Radio and antenna tower facility, portable supply to buildings and facilities, and a CCTV camera system, installed by the Contractor. The portable system shall include connection to public main supply, water tanks, pumps and distribution system. If there is no public water supply available, then a deep well water supply for underground water shall be provided by the Contractor.

CCTV cameras, CCTV server, communication cables and 50” LED TV shall be provided and installed at the WNMR Facility in order to display at the WCS control room as well as monitor over PTT Network.

An open drainage system shall be provided to cover the WNMR area perimeter and connected to the existing drainage system.



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At the WNMR, firewater supply, instrument air supply with local accumulator vessel, and closed drainage systems shall be provided by the Contractor for 5TP Phase 2 and tied into existing WNMR systems and equipment.

An underground fire water piping system shall be provided and installed by the Contractor for 5TP Phase 2 at the WNMR facility perimeter. The piping shall complete a ring main loop around the WNMR facility with branches to above ground hydrant facilities. The fire water piping system installed by the Contractor for 5TP Phase 2 shall be tied in to the existing WNMR system at tie-in locations. Tie-in isolation valves, hydrants, hose boxes, portable and mobile extinguishers shall be provided and installed by Contractor for 5TP Phase 2.

An instrument gas skid and distribution system shall also be provided and installed by the Contractor for 5TP Phase 2.

Water will be used to supply a safety shower/ eyewash and the general-purpose utility stations within the WNMR, which shall be provided and installed by the Contractor for 5TP Phase 2. Water supply to the eyewash station shall generally be buried to avoid solar heating. All exposed pipe to the shower/eyewash station shall be insulated.

A fire alarm panel, alarm and monitoring system to NFPA Standards, shall be installed at WNMR, by the Contractor for 5TP Phase 2. A Fire alarm system shall be provided to the control building. The system shall include, but not limited to fire control panel, smoke detector, manual call points, horn and beacon. For control building with IG-541, alarm signal shall be sent to fire control panel in order to automatically switch-off air conditioners & ventilation fans, and to activate fire suppression system.

A fire & gas detection and monitoring system for process area shall be installed by the Contractor for 5TP Phase 2 at WNMR. A safety alarm will warn the personnel in the field and at the new control room of gas leakage. Contractor for 5TP Phase 2 has the responsibility to design and install the detectors system, provide cable and install the cable up to WNMR Fire & Gas panel at the new control building.

The installed system design shall enable an operator to monitor the WNMR Fire & Gas status from the new WNMR Fire & Gas panels and also from the DCS HMI.

1.4.3 RA6 Mixing Station (RA6MXS) – Phase 2

The RA6MXS Facilities shall be installed under 5TP Phase 2.

Refer to Design Basis Manual for overall design criteria, also design specifications and P&ID Drawings for system details, and civil layout Drawings for the proposed layout and system details for the RA6MXS facilities. Gas process tie-ins to RRPP pipeline and RA Pipeline are indicated on PFD Drawing No. A3-1504.01-010-010 and corresponding facility P&ID drawings.

RA6MXS will be manned with security guards 24 hours a day. Amenities to accommodate personnel shall be provided, portable water, communications, toilet



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facilities, air conditioning and furniture. Control building shall be installed by the Contractor at RA6MXS.

Contractor shall provide Control (DCS), interface with existing DCS of RA6 and tie-in of existing DCS, modification of DCS graphic, MIMIC panel communication and FOC interface.

Although Operating of all facility shall be able at new RA6MXS control building, additional HIS shall be provided at existing DCS console of RA6. Control activity shall be able to handle fully from both sides.

Piping vent systems at the RA6MXS shall be tied-in to RRPP vent system by the Contractor for 5TP Phase 2.

The metering and Control run shall be equipped with shelter and overhead crane as indicated in drawing. The overhead crane shall be explosion proof type and can safely handle the maximum equipment load.

A new access road to serve the RA6MXS for heavy transportation during construction shall be prepared by the Contractor for 5TP Phase 2. Permanent access roads for maintenance and operational access to the facilities and equipment within the RA6MXS and existing RA6 shall be provided and tied-in to existing RA6 access road system.

The Contractor for 5TP Phase 2 shall arrange for electricity to be supplied from Metropolitan Electricity Authority (MEA), closest public power line. The RA6MXS station shall include transformer installation, and power lighting distribution systems to the RA6MXS facilities. 5TP Phase 2 Contractor shall design and provide the power capacity for RRPP and connect to junction box of RRPP project.

Within the station, access manholes for access to instrumentation and electrical cabling systems shall be incorporated into the installation by the Contractor.

RA6MXS scope of work shall include UHF Radio and antenna tower facility, portable supply to buildings and facilities, and a CCTV camera system, installed by the Contractor. The portable system shall include connection to public main supply, water tanks, pumps and distribution system. If there is no public water supply available, then a deep well water supply for underground water shall be provided by the Contractor.

CCTV cameras and CCTV server shall be provided and installed at the RA6MXS and displayed by monitors at the new RA6MXS control room and monitor over PTT Network.

An open drainage system shall be provided to cover the RA6MXS area perimeter and connected to the local drainage system or infiltration pits. Tie-in and interface with the existing drainage system of RA6 station shall be designed and provided in order to manage water drainage for the whole area. RRPP Contractor is responsible for drainage in RRPP including tie-in to public drainage. The tie-in of RA6MXS to existing



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RA6 area and RRPP shall be provided and installed by the Contractor for 5TP Phase 2.

An instrument gas skid and distribution system shall also be provided and installed by the Contractor for 5TP Phase 2.

Water will be used to supply a safety shower/ eyewash and the general-purpose utility stations within the RA6MXS, which shall be provided and installed by the Contractor for 5TP Phase 2. Water supply to the eyewash station shall generally be buried to avoid solar heating. All exposed pipe to the shower/eyewash station shall be insulated.

A fire alarm panel, alarm and monitoring system to NFPA Standards, shall be installed at RA6MXS, by the Contractor for 5TP Phase 2. A Fire alarm system shall be provided to the control building. The system shall include, but not limited to fire control panel, smoke detector, manual call points, horn and beacon. For control building with IG-541, alarm signal shall be sent to fire control panel in order to automatically switch-off air conditioners & ventilation fans, and to activate fire suppression system.

A fire & gas detection and monitoring system for process area shall be installed by the Contractor for 5TP Phase 2 at RA6MXS. A safety alarm will warn the personnel in the field and at the new control room of gas leakage. Contractor for 5TP Phase 2 has the responsibility to design and install the detectors system, provide cable and install the cable up to RA6MXS Fire & Gas panel at the new control building.

The installed system design shall enable an operator to monitor the RA6MXS Fire & Gas status from the new RA6MXS Fire & Gas panels and also from the DCS HMI.

1.4.4 SCADA and Communications Facilities – Phase 2

SCADA and communications facilities shall be provided to support control and operation of the pipeline and related facilities. The central hub of the SCADA and communication system will be the PTT Operations Centre at Chonburi, Thailand, with a backup control center at Pan Tong.

Major systems to be incorporated at each Phase of the 5TP Work include:

Fiber optics based communication system along the gas pipeline, consisting of two buried HDPE ducts, manholes/pull boxes, a multicore fiber optic cable, cable splicing/termination hardware and optical transmission equipment and a leased line as the back-up system. Under 5TP Phase 2 Scope, the System shall be extended to include all Phase 2 block valve stations, a tie in to WNMR and BV5.8, and the new control building at RA6MXS. The system shall provide voice and data communications between the Chonburi Operations Centre, Pantong and the facilities along the pipeline.

UHF radio system consisting of repeaters/towers located at each block valve station or as otherwise determined by the radio communication coverage study. The system shall include portable handheld radios. This system will be fully integrated into the existing PTT communications system.



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Interconnections between the fiber optics and UHF system at the Chonburi Operations Centre and Pantong.

Interconnections between IP/PBX system and PTT head office.

New CCTV server shall be provided at the RA6MXS. Interconnections between CCTV new and PTT existing systems.

Modifications to the existing SCADA host system for retrieval and management of pipeline related operating information from field devices via RTU’s. Communications to the pipeline RTU’s shall be provided as part of the fiber optics communication system and provide a dedicated SCADA work stations at WNMR and RA6MXS.

RTU’s at block valve stations, receiving stations, metering & regulating stations, and mixing stations shall provide remote monitoring and control from the pipeline SCADA control centers at Chonburi and Pan Tong.

Interconnection between new DCS/RTU at RA6MXS and SCADA system at PTT OP6 operation center in Bangkok

1.4.5 Interface Works – BV5.8 between 5TP EPC Phases 1 & 2

The whole BV5.8 work is under 5TP EPC Phase 1 including 50 m underground pipeline and related work downstream of the station boundary. 5TP EPC phase 2 scopes shall start from pipeline tie-in at 50 m underground pipeline downstream of the station boundary and include:

Pipeline tie-in including related work such as FOC duct and CP/AC mitigation

Pipeline pre-commissioning and commissioning from BV5.8. Contractor at each phase shall perform their own Hydrotest section.

FOC terminate to FOTE inside BV5.8 control building

1.4.6 Interface Works – WNMR between 5TP EPC Phase 2 and WCS EPC

5TP EPC Phase 2 shall perform works as indicated on drawings including; but not limit to:

Piping and pipe support tie-in to WCS

Access road and drainage tie-in to WCS

Firewater tie-in to WCS

Grounding system tie-in to WCS

Providing FOC interface between 5TP DCS & WCS DCS in order to control 5TP from WCS Control Building and vice versa

Providing CCTV monitor in WCS Control Building



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1.4.7 Interface Works - RA6MXS between 5TP EPC Phase 2 and RRPP EPC

The Scope of Work interface between 5TP Phase 2 Contractor (5TP EPC Phase 2) and RRPP Contractor (RRPP EPC) is shown in the matrix below:

Item Subject Detail

CIVIL WORK

1 Earthwork and

Backfill

RRPP EPC shall backfill and provide natural drain in the whole area

of both projects to the specification.

RRPP EPC shall complete and handover 5TP backfill area including

temporary access to 5TP EPC within 12 months after 5TP Contract

award. 5TP shall takeover and maintain temporary access in good

condition for use by both RRPP and 5TP Contractors.

2 Fence 5TP EPC is responsible for property fence (barb wire with gate) for

the whole RA6MXS area.

Each Contractor is responsible for fence in own area.

5TP EPC is responsible for fence between RA6MXS and existing

RA6.

RRPP EPC is responsible for temporary fence between both areas.

3 Road 5TP EPC is responsible for road work including guardrail and internal

road in whole RA6MXS area for both projects including permit to

connect to public road. 5TP EPC is responsible for new road in

existing RA6 area and slope to RA6MXS area including retaining wall

and Sliding gate.

4 Drainage The drainage system shall be capable to drain rainfall from both

projects and existing RA6 to public drainage (klong) thru the back of

new plot.

Each Contractor shall construct drainage system in own project area.

5TP EPC shall design and construct drainage system in 5TP plot and

tie-in to drain water from 5TP project area and existing RA6 to RRPP

drainage system.

RRPP EPC shall design and construct drainage system in RRPP plot.

It shall be capable to drain water from both new plot and existing RA6

to public drainage (klong) at the back of the plot.

5 Crushed Rock Each Contractor is responsible for own area.

ELECTRICAL

6 Transformer &

Power Supply

Each Contractor is responsible for temporary power supply for own

project.



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Item Subject Detail

5TP permanent power supply and Transformer shall be capable to

provide power for both projects.

7 Cable Route Each Contractor is responsible for cable route for own project. Both

Contractors shall work together to minimize impact for both projects.

INSTRUMENT

8 Fibre Optic RRPP EPC shall install 5 ducts & 4 FOC (2 for RRPP FOC, 2 for 5TP

FOC, 1 duct for spare) between existing RA6 building and FOC

junction manhole at RA6MXS.

RRPP EPC shall end 2 FOC for 5TP with Splicing enclosure ready

for 5TP EPC to connect. 5TP shall complete all required cable

termination.

UTILITY

9 Portable Water Each Contractor is responsible for Portable water for own project.

5TP EPC to get permit and connect portable water system to water

supply for both projects.

5TP EPC to tie-in water supply to the RRPP portable water system.

PIPING

10 Vent Line RRPP EPC shall design vent line capable to safely vent gas from

5TP. RRPP EPC shall provide flange tie-in near 5TP plot for 5TP to

connect vent from 5TP.

11 Piping and

Pipe Support

Each Contractor shall design and construct piping and pipe support

for own project except

1. All supports adjacent to existing RA6 fence that use for both

projects, which shall be provided by RRPP EPC.

2. All supports inside existing RA6 shall be provided by 5TP EPC.

12 Walkway and

Working

Platform

Each Contractor shall design and construct walkway and working

platform for his own project. The walkway between RA6MXS and

existing RA6 shall be provided by 5TP Contractor.

1.5 FUTURE SCOPE

1.5.1 GDF5 Launching Station (GDF5) Phase 3

The initial GDF5 Facilities shall be installed under 5TP Phase 3. Refer to Design Basis Manual for overall design criteria, also design specifications and P&ID Drawings for system details, and civil layout Drawings for the proposed layout and system details for the GDF5 facilities. The Scope of Work for GDF5 is not included here.



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2.0 SUMMARY OF CONTRACTOR RESPONSIBILITIES

Contractor shall be solely responsible for the performance of all activities required in the Scope of Work to provide project management and control, engineering, design, procurement and expedite services of materials, training personnel, construction, logistics, installation, inspection & testing, QA/QC, FAT & SAT, Hydrostatic Test, pre-commissioning and commissioning the Fifth Transmission Pipeline Project Phase 1 or Phase 2.

All Contractor’s key personnel down to the level of field superintendents shall be fluent in written and spoken English and all project correspondence, procedures, meeting records, reports, and all other documents shall be in the English language.

Contractor schedules, pricing and execution plans are based on normal working hours of no more than 10 hours per day and no more than 6 days per week, with Thai holidays as non-working days. Contractor shall provide sufficient numbers of equipment, personnel and services to accomplish the Work, per the milestone schedule, during the normal working hours. Should Contractor request to work outside of these hours and times, he shall obtain prior written approval from PTT and the relevant authorities having jurisdiction over the Work. Should PTT approve such additional working hours, Contractor shall be fully responsible for all additional costs incurred. Contractor’s schedules shall contain adequate allowances for weather downtime during the rainy season and for other possible disruptions.

The work to be performed under this Contract shall include full responsibility for all operations required to design, build and put into service the pipelines and facilities in accordance with the Contract, including but not limited to:

Acquisition of all governmental and third party permits in related to the execution of the work including permits for pipeline installation such as crossing permits for roads, canals, rivers, foreign services, railroads, permits for Block Valve Station/Facilities constructions, permits for permanent usages of electricity, water, telecommunication, etc.

Acquisition of all necessary third party approvals/permits for protection, relocation and restatement of any obstruction along the pipeline ROW, by the Contractor.

Perform all topographic, alignment, and geotechnical surveys required to acquire permits, design, and construct the pipeline, crossings, horizontal directional drills and facilities. PTT has provided preliminary topographic survey data on an “Information Only” basis. Contractor is responsible to verify the accuracy of these reports and to obtain whatever additional information required to complete the Work.

Engineer and perform detailed design of the pipeline, crossings, horizontal directional drills, Block Valve Stations and facilities using the Design Basis Manual, drawings, specifications, data sheets, and other pertinent information. Engineering shall include design verification and validation, engineering calculations, final detailed engineering, field engineering, surveying (including



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pre-construction survey of pipeline route) and all construction engineering and analysis required for safe and acceptable installation and operation of the pipeline system. All detailed design activities shall be performed in Thailand and shall be subject to PTTs approval prior to the start of construction. PTT may station representatives in Contractor’s Thailand design office for purposes of reviewing and approving the design. Engineers performing detailed design Work shall have license from Thai COE and have experience from similar Thailand Projects.

Coordinate, co-operate with, and support as required all governmental agencies or other third parties having jurisdiction over the work including but not limited to EGAT, DOH, DRR, SRT, PEA, MEA, PWA, MWA, TOT, RID, MD, Fine Arts Department, SAO, PAO, RFD, DOEB, other departments within PTT, PTTs environmental monitoring subcontractor, military and police authorities, customs and immigration authorities, and third party construction contractors.

Coordinate all activities with PTT operators at the existing OCS4, WNMR, RA6 facilities and various pipeline operations and third parties, including other contractors who may be working at the various facilities or along the pipeline route. PTT reserves the right to require Contractor to schedule the order of performance of its work in such a manner as will minimize interferences with PTT’s operations and with the Work of other contractors.

First 70 km of 5TP Pipeline shall be installed in parallel to FTP Pipeline, which is under simultaneously live gas operation, along and under EGAT ROW. The 5TP EPC Contractor shall construct and install all pipeline & facilities in a safe manner, without any interference with the operation of the existing facilities. The 5TP EPC Contractor shall acquire work permits from PTT and related regulatory bodies before start of any work in the area. The 5TP EPC Contractor shall follow all safety regulations.

Wherever the pipeline is to be installed alongside existing PTT live gas pipeline, SimOps plans, risk assessments, JSEA and work permits shall be prepared to ensure that the pipeline installation is executed in a safe manner. These plans shall be subject to PTT approval prior to the start of any work.

Where the Project involves working inside and near existing PTT operating facilities and/or pipeline ROW, Contractor shall construct all facilities in a safe manner, without any interference with the operation of the existing facilities. It is critical to PTT to continue to operate the existing facilities without any shutdowns. Prior to any construction, Contractor shall physically verify, using hand digging if required, all interface information including location of buried piping, electrical conduit, etc. and show the same information on the Drawings. All tie-ins shall be planned by the Contractor well ahead of the actual Work and shall be closely coordinated with PTT/Consultant. Contractor shall obtain necessary hot work permits and follow all safety regulations.

Establish Community Relations (CR) Management Plan, provide CR Resources and perform all CR activities as per requirements stated in SP-X-1504.01-010-002, Specification for Community Relations.



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Establish and maintain a Safety, Health and Environmental Management System that has been approved by PTT and is in compliance with the EIA requirements, related law and legislation and PTT SH&E Specifications.

Comply with the Project EIA. PTT will engage a specialized environmental subcontractor to monitor compliance with the EIA and Contractor shall co-operate with and provide all requested support to this subcontractor to allow him to perform the compliance monitoring. Should non-compliances be found, Contractor shall immediately rectify them before proceeding further with the Work. Contractor shall supply all necessary information to support report preparation in accordance with the EIA and ONEP Monitoring Report Guideline.

Provide all necessary access, documentation and information to allow auditing of Contractor’s SH&E Performance and compliance with the PTT SH&E specifications.

Construction safety during pipe transport and pipeline and station installation is of utmost importance and Contractor shall take all necessary precautionary measures to minimize disruption to traffic and to minimize any hazards or unsafe conditions to his own crews and to the general public.

Furnish all technical and professional services for procurement of all materials, consumables and equipment (except those specified herein as being furnished by PTT) and spare parts including vendor shop inspections and expediting.

All materials that are procured for permanent installation shall be provided in new condition.

The Contractor shall only procure materials from PTT approved vendors.

The Contractor shall obtain approval to proceed from PTT prior to the purchase of material and equipment.

Purchase of materials and equipment without the approval to proceed from PTT will not relieve the Contractor of his responsibility and liabilities under the Contract.

Contractor shall receive, load, transport and warehouse all materials and equipment in a manner to prevent damage and in accordance with the Vendor specified requirements. All equipment and materials shall be stored in a covered warehouse unless otherwise approved by PTT.

Contractor shall at all times keep and maintain detailed records of the materials and equipment that have been purchased, received, stored and issued for construction and shall make such records available to PTT.

Contractor shall provide a detailed procurement organization, personnel, procurement plan, and procedures that are dedicated to the project. The procurement plans shall include preparation of materials requisitions, bidding procedures, approval of vendors, management and control of vendor documentation, shop expediting and inspection and engagement of an independent third party inspection agency who shall certify procured materials and equipment in accordance with ISO EN 10204, 3.2 requirements. The third



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party inspection agency shall be subject to PTT approval. All key materials, equipment, and services shall be procured only from vendors or sub-contractors that are included on PTTs approved equipment and material list. PTT reserves the right to reject any materials or equipment procured from vendors that are not on PTTs approved vendor’s list.

Contractor shall set up and submit to PTT for approval, a systematic review system to control issue, review and approve all vendor documentation. This system shall include time allowances for PTT to review and approve all vendor documentation. Any materials or equipment procured prior to PTT approval of vendor documentation shall be subject to rejection by PTT and replacement by Contractor. Contractor shall not grant any concession requests or specification relaxations to vendors without prior approval by PTT. Should this occur without PTT approval, the material is subject to rejection and replacement by Contractor.

Due to the critical schedule for procurement of long lead (i.e. for procurement of 6 months or longer) items, Contractor’s procurement manager shall be located in Thailand during the detailed design phase of the work to allow rapid and efficient co-ordination between his procurement and detailed engineering organization and co-ordination and approvals by PTT.

Contractor shall receive PTT supplied Linepipe and uncoated Hot Induction Bends (HIBs) under DAP INCOTERMS 2010, transport and deliver to Contractor’s designated stockyards.

Contractor shall receive PTT furnished pipes and uncoated HIBs off the ships hooks and transfer of custody from PTT to Contractor at that time. Contractor shall fully inspect these materials and note any damage or defects at the point of transfer. Should no defects or damage be noted at that time, PTT will not accept claims from Contractor for delivery of damaged or defective HIBs, pipe and coatings.

External and internal coating of all HIBs shall be Contractor’s responsibility.

Receive, clear through customs, handle, load, transport, and unload all equipment, materials and spare parts in accordance with BOI process including the Line Pipe provided by PTT.

Provide inspection of all construction operations to the satisfaction of PTT including third party NDE (including mandatory AUT for all main pipeline girth welds) and construction inspection. The 5TP EPC Contractor shall subcontract a third party NDE, which is registered to DOEB. The 5TP EPC Contractor shall submit proposed third party NDE, subject to PTT approval, before start of any NDE works. Radiographic Examination shall have RT films (including digital file) for records.

Fabricate material and equipment assemblies.

Acquire all temporary workspace and access not specifically provided by the PTT.



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Furnish all labor, tradesman, supervision, tools, warehousing, security and every item of expense necessary for the construction, installation, painting, and testing, pre-commissioning and achieving Mechanical Completion of the Work.

Furnish a Quality Control and Quality Assurance Program and personnel, which ensure that Project is installed to PTT’s satisfaction.

Provide training for PTT’s staff during all phases of the work.

Pre-Commission and Commission the pipelines and facilities and train the PTT’s personnel to operate the entire system.

Operate the system for 30 days continuously after Commissioning.

Perform as-built survey and prepare as-built drawings, alignment sheets, GIS data, land released documents, and other documentation as required by PTT.

Correct and revise information from inspection, QA/AC and as-built survey to all relevant document.

Provide project procedures and controls including correspondence, meeting minutes, reports, schedules, and document control.

Ensure that at all times Contractor’s operations and those of its subcontractors and suppliers, and the conduct of its employees do not damage the reputation of PTT.

Provide a medical room, and at least 2 full-time nurses, for each site office.

Provide an emergency car, with medical facilities and drivers, for each site office.

Provide and maintain standby emergency crews together with all necessary vehicles and materials, which shall be available at all times to deal rapidly with any incident requiring urgent repair, pollution control, clean up or maintenance of the pipeline, temporary work and facilities.

Provide stock piles, compound/storage and working areas for Contractor’s own use, suitable landfill and hazardous waste (for solvents, pipeline repair materials, paints, chemical, etc.) management and disposal sites in accordance with SH&E requirement and submit to the relevant local authority for approval prior to commencing work.

Provide safety training courses, safety inductions and training room with qualified trainers following Thai laws, PTT regulations and authorized agency requirements for all personnel working on Site.

Perform clean-up, final grading, erosion control and restore the Work Site to original state/condition in compliance with the SH&E requirements.

The above scope of work is further detailed in subsequent sections.



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3.0 PERMIT ACQUISITION

3.1 GOVERNMENT AND PRIVATE PERMITS

The Contractor shall prepare and submit all Thailand government and private permitting agency permit packages required during engineering, procurement, construction, pre-commissioning and commissioning in order to obtain approval to proceed.

The Department of Energy Business (DOEB) under the Ministry of Energy has permit requirements pertaining to design engineering and commissioning. Contractor shall prepare permit packages to comply with these requirements as per the website of the Department of Energy Business (www.doeb.go.th).

Contractor shall employ specialized personnel or a subcontractor that is experienced in these matters to perform these functions and he shall work closely with PTT’s Business Relation Management Division and the PTTs project organization.

3.2 GENERAL

All work required to prepare and submit the permit packages shall be the Contractor’s responsibility, including, but not limited to: surveying, liaising with permitting agencies, attendance of meetings with the relevant parties, site visits, photography, drawing preparation, construction method description/procedures, work instructions, cover letters, construction schedules, safety and environmental mitigation procedures, emergency response procedures, and traffic management plans and control procedures.

Known permitting agencies are listed in the Design Basis Manual. The Contractor shall be responsible for verifying all permits and permit requirements for the Work. The Contractor shall be responsible for revising the permit packages, if required by the permitting agency, following submission of the packages. The Contractor shall pay any official, non-recurring (annual) permit application fees. The Contractor shall be responsible for revising the permit packages, if required by the permitting agency, following submission of the packages.

The Contractor shall appoint a full-time, project dedicated permit coordinator. The permit coordinator shall be bilingual, written and orally, in Thai and English.

The Contractor shall keep notes of all meetings with permitting agencies and provide copies of these notes, in English, to PTT.

Permits shall be submitted in the language required by the permitting agencies. The Contractor shall prepare translations of permit documents as required by the permitting agencies and PTT.

http://www.doeb.go.th/



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The Contractor shall be responsible for preparing the PTT Pipeline MOC document packages, which are required by PTT Operation’s procedure and supporting PTT for document submission or revising. Details of Tie-in and interface with existing facilities, procedures, JSEA and other document required by PTT regulations shall be prepared and submitted for approval in order to obtain work permit for working inside PTT facilities.

4.0 SURVEYING

4.1 WORK PERFORMED UNDER THIS SECTION

In addition to specific survey work addressed in this section, Contractor shall perform any and all surveying activity necessary to design and construct the Work. Surveys shall be in accordance with the survey requirements in the project specifications and shall be in compliance with the SH&E requirements.

PTT has surveyed the pipeline route and the results of the survey have been used to generate the preliminary pipeline alignment sheets. This information is to be used by the Contractor for information purposes only and is not warranted by PTT to be accurate. The Contractor shall survey the entire route of the pipeline to confirm the validity of the information on the alignment sheets. In addition, Contractor shall survey proposed block valve station and facility sites.

The verification by the Contractor shall include verifying all KP equations indicated in the preliminary alignment sheets provided by PTT and renumbering the KPs with no equation in the AFC alignment sheets and all Drawings.

The survey shall include all aboveground and underground obstructions (such as structures, power poles and buried pipelines) to define the exact location of underground pipeline or utilities, which will be exposed.

In some cases, as-built drawings of existing facilities may be provided by the PTT to assist Contractor in the design effort. However, the survey information on these as-built drawings may or may not be valid or up to date.

The Contractor shall resurvey based on the provided information in order to verify that the information is correct and shall be used in detailed design properly.

The Contractor shall review the survey information on any such as-built drawings against the actual field conditions to determine the extent of any additional survey work required.

The survey review shall identify any nearby public settlement or social and environmentally sensitive areas and determine distances of the selected site from any inhabited area, which may be affected by construction activities and PTT operations.



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4.2 TOPOGRAPHIC AND ALIGNMENT SURVEY OF PIPELINE ROUTE

Contractor shall perform a topographic, aerial survey (LIDAR) and alignment survey of the entire pipeline route. Contractor shall prepare “Issued for Construction” alignment sheets based on the results of this topographic survey. Contractor shall be solely responsible for establishing all horizontal and vertical ground control points.

4.3 CLASS LOCATION SURVEY

Contractor shall perform a location class survey of the pipeline route in accordance with ASME B31.8 to ensure that the assigned location class values are valid for design of the pipeline.

4.4 SITE SURVEYS

The Contractor shall perform site surveys at the Block Valve Stations and facilities.

Survey Work for the Block Valve Stations shall be performed for entire site, access and only be commenced after PTT informs the Contractor of the final locations.

At existing Wang Noi Metering Station (WNMR), GDF4 (and as necessary OCS4 area), and RA6, Contractor shall confirm the location of all relevant existing facilities.

4.5 CROSSING SURVEYS

The Contractor shall perform a topographic survey at road, waterway, railroad, and other crossings, as required, for the purpose of designing the pipeline, planning HDD and bored sections, and preparing permit packages and crossing installation method statements.

The Contractor shall establish a benchmark for horizontal and vertical control points at each crossing requiring a specific drawing.

4.6 PRECONSTRUCTION SURVEY

The Contractor shall perform a preconstruction survey of the entire proposed route.

As part of the preconstruction activity, the Contractor shall:

Recover or re-establish ground control points

Locate and peg existing parallel pipelines

Peg the trench centerline of the proposed pipeline



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Flag the proposed pipeline ROW and work space boundary

Locate existing structures and land monuments within the proposed ROW

The following items concerned with fiber optic duct installation shall also be included as part of the pipeline construction survey:

Establish all survey monuments and markers for fiber optic duct

Establish trench line / centerline for cable duct

Set out engineering features, including but not limited to location of cable markers, duct joints and manholes

All reference points necessary for installation of all duct appurtenances shall be established. Reference points established shall be sufficient to ensure that appurtenances shall be installed according to the Specifications and Contractor’s Approved for Construction Drawings.

Other survey activities required in support of construction shall be the responsibility of the Contractor.

Any survey monuments disturbed by the Contractor shall be restored to their original position by the Contractor’s registered professional land surveyor. All monuments restored shall be re-recorded with affected landowners and title department. Such restoration shall be at the Contractor’s expense.

Pipeline pegs shall consist of steel pipe or rebar at least 30 cm long and shall be driven flush to grade. The pegs shall be placed every 100 m along the route and at all IP’s. Centerline pegs shall be flagged with wooden lath and red flagging for easy visibility. The wooden lath shall be marked with the station number and IP number (if applicable).

ROW and workspace flags shall consist of wooden lath with yellow flagging. Flags shall be placed every 100 meters and at all IP’s.

4.7 AS-BUILT SURVEY

The Contractor shall perform an as-built survey, and PTT Pipeline GIS Data, of the entire completed route and all new facilities, within his Scope.

Following completion of the as-built survey, the data shall be recorded on computer generated drawing files.

The Contractor shall survey the entire route using LIDAR after the Work completion.

The as-built survey shall be performed using Total Station instruments or approved GPS instruments to accurately locate all data points in UTM coordinate format, as applicable.



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The as-built survey, and PTT Pipeline GIS Data, shall, at a minimum, collect the following data points for the pipeline:

Field welds

IP’s

Both horizontal and vertical pipe centerline co-ordinates including HDD and bored sections. Co-ordinates shall be presented in a format acceptable to PTT Operations.

Pipeline markers, protection slabs and warning signs

Valves and fittings

Changes in external coating (corrosion, abrasion, concrete, etc.)

Changes in wall thickness

CP test stations, anodes, and rectifiers

AC mitigation devices

Vertical sags and over bends

Road crossing features (reserve boundary, edge of pavement, road centerline, etc.

Railroad crossing features (reserve boundary, toe/top of slope, tracks, centerline, etc.)

Waterway crossing features (reserve boundary, high/low water lines, centerline, etc.)

Foreign utility crossing features (centerline, etc.)

Buoyancy control-screw anchor locations

Social or environmentally sensitive areas

Pipeline markers (including set-on pipe magnetic markers and associated marker posts at grade level)

Pipeline Settlement Indicators

Sales taps

Fiber Optic Equipment

For each data point collected, appropriate descriptive information shall also be recorded. This information shall include, but not be limited to, the following:

Data Point Descriptive Information

Field weld Weld number

Pipeline depth of cover

IP’s Deflection angle



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Material spec. (factory bends only)


Valves and fittings Diameter


Material/class specification

Sales Taps Diameter



External coating Pipeline depth of cover



Wall thickness Wall thickness value

Pipe material specification and grade


CP test station CP test station type

Offset from pipeline centerline

AC mitigation devices Type of device

Offset from pipeline centerline

Vertical sags/overbends Deflection angle


Road crossing Name/number of road or highway


Railway crossing Pipeline depth of cover

Waterway crossing Name of waterway

Maximum water depth


Foreign utility PTT’s name

Type (pipe, cable, etc.)

Service

Material

Clearance


Buoyancy control Locations of screw anchors

Pipeline Markers Type of Marker

Pipeline Settlement Indicators Location of the indicators

Fiber Optic Manholes and FOC Markers

Fiber Optic Duct’s depth of cover



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Junction Box / Spicing Closures

In addition, Contractor shall submit as-built documentation as follows:

A complete profile along the pipeline route

Scale plans and profiles of all road, railway, waterway and service crossings

Plans and elevations of cathodic protection equipment

Welding and NDE records

Hydrostatic testing records and reports

Pipeline reconciliation

CIPP & DCVG

Complete PTT Pipeline GIS



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5.0 GEOTECHNICAL INVESTIGATION


The Contractor shall perform any geotechnical investigation necessary to design and construct the Work. The preliminary pipeline geotechnical report provided by PTT is provided on “Information Only” basis. Contractor is responsible to resurvey to confirm the accuracy of this report and to obtain whatever additional information that Contractor requires to complete the Work including geotechnical data for Block Valve Stations and Facilities.

5.2 GENERAL

Additional geotechnical work may include, but not be limited to, additional soil resistivity tests for cathodic protection and alternating current mitigation, sample bores for HDD design, investigation for buoyancy control, and sample bores for foundation design.

5.3 SOIL STABILITY AND SOIL SETTLEMENT STUDY

5.3.1 Soil Stability Study

The Contractor shall perform geological study in area of pipeline hazardous assessments including, but not limited to the following:

o Pipeline nearby borrow pits, and/or reservoirs

o Pipeline nearby natural steep slope (e.g. hills, or mountainous areas)

o Steep slope in stations (e.g. Block Valve Stations, or Facility Stations)

o Major road crossing and/or parallel (e.g. DOH, or DRR)

o Major waterway crossing and/or parallel (e.g. RID, or MD)

5.3.2 Soil Settlement Study

The Contractor shall perform Soil settlement study nearby and/or in the block valve stations and facilities. This study shall be used to complete the design of pipe supports in order that the underground buried pipeline shall not have any impact caused by the differential settlement.



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6.0 ENGINEERING


The Contractor shall provide all labor, material, facilities, equipment, and any other resources necessary to design and engineer the facilities described in Section 1 in accordance with the Design Basis Manual and provisions of this section.

6.2 GENERAL

Contractor shall undertake a rigorous review of the design of the Pipeline System, Block Valve Stations and Facilities as depicted in the Scope of Work and described in the Design Basis Manual, Documents and Drawings, in order to confirm its adequacy to serve the purpose for which it is intended. Contractor shall notify PTT of any recommended changes and upon receipt of approval to proceed by PTT, Contractor shall incorporate such changes into the design. Contractor is assumed to have sufficiently familiarized himself with the pipeline system design and intent during the bidding phase. Any changes to the Scope of Work arising out of a detailed design review after Contract Award, including the cost and schedule consequences thereof, shall be the responsibility of Contractor.

Contractor shall be solely responsible for the final design and the integrity of the total pipeline system and facilities. Any material take-offs provided in the bid documents are for information only. The Contractor is to confirm all required material for the pipeline system and facilities except as specifically stated as PTT’s supply.

Contractor shall perform 3D modelling (PDMS) and organize modelling review of Block Valve Stations and all other station facilities at 30%, 60%, 90% complete, and shall seek PTT approval before moving to the next design stage. Contractor shall hand over soft files to PTT as completion of the work. Soft files (Native files, viewer files, and viewer software of the 3D model) shall represent the As-Built Status and shall be handed over to PTT as part of final documentation.

The Contractor shall be responsible for verifying the information in the Design Basis Manual, Documents and Drawings, and for developing additional information as required in order to perform engineering, validation, purchasing, fabrication, transportation, installation and commissioning. Contractor shall fully document such verification in a Project Design Manual that will be compiled during the design phase of the project and submitted to PTT at the end of that phase. Contractor shall submit to PTT for approval to proceed, all “Issued for Construction” (IFC) detailed design drawings, specifications, calculations, data sheets, and design reports for the pipeline and facilities to be installed. Contractor shall renumber all documentation to incorporate PTT’s numbering system for the project. Instrument and equipment numbers shall also be assigned as directed by PTT.



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The Contractor shall be responsible for verifying the preliminary FEED HAZOP Report, HAZOP Actions and SIL Determination Report, which are provided by PTT.

Contractor shall conduct a Detailed Engineering HAZOP Study and SIL Determination Study with an independent chairman. The outcome of the HAZOP Study and SIL Determination Study shall be incorporated into the design by Contractor. Contractor shall provide a final HAZOP close-out report and Safety requirement specification.

The PTT has provided “Issued for Bid” revisions of drawings including PFD’s, P&ID’s, alignment sheets, typical crossing drawings, typical block valve plot plans, typical erosion control drawings, typical civil works standards and drawings, and piping arrangement drawings. Electronic copies of these documents will be issued upon award of the contract. Project drawings provided by the PTT are included in Volume 3, Exhibit G.

The Contractor shall use these drawings as the basis for developing his design and IFC drawings. Specific drawings shall be developed, as required for design and permitting, based on the typical drawings. Any other IFC drawings required for the pipeline design shall be initiated and completed by the Contractor and submitted to the PTT for approval to proceed.

Engineering shall include, but not be limited to, preparing and issuing “Issued for Construction” (IFC) documents. The IFC documents shall include as a minimum the following:

Construction Execution Plans

Contractor shall provide Construction Execution Plans for each pipeline construction spread, and station.

Drawings

Contractor shall provide all necessary Drawings. Contractor shall review and revise as necessary the Drawings provided by PTT. Contractor shall develop all other necessary additional Drawings. Contractor shall submit all applicable Drawings for PTT’s approval.

For pipeline Drawings, Contractor shall verify all KP locations indicated in preliminary pipeline alignment sheets, provided by PTT. In producing the Construction Alignment Sheets, the Contractor shall re-number the KPs with no station equation included.

Procedures

Procedures shall include, but not be limited to, addressing the following items:

Cleaning, Gauging, Hydrostatic test, drying, and pre-commissioning procedures

Pipe handling, transportation and storage procedures



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Simultaneous Operations Procedure (SimOps)

Pipeline installation procedures for all construction activities

Cold bending procedure

Welding and NDT procedures

Fiber Optic cable installation procedures

Buoyancy control procedure

Erosion control procedure

Field joint coating procedure

Field painting procedure

Concrete coating procedure

Pipeline transportation procedure

Tie-in to PTT Pipeline procedure including Hot Tapping

Horizontal directional drilling (HDD) procedure

Horizontal boring (cased and uncased) procedure

Procedure for installation of CP and AC Mitigation equipment

Tie-in to existing PTT voice and data communication system procedures

Procedures for revision and expansion of existing PTT’s SCADA system database and associated application programs and overall Onshore/Offshore SCADA and telecommunication integration

Procedures for interfacing to existing WNMR and interfacing to new project of Wang Noi Compressor Station (WCS) with other contractors

Procedures for interfacing to existing RA6 and interfacing to new project of RRPP with other contractors

Commissioning procedures for the pipelines and facilities

30 Day Operating/Testing Plan

Emergency response during construction/commissioning procedure

Procedures as required in narrative specifications



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Coordination and interface with third-party procedure

Tie-in with existing process and utility facilities at the GDF and OCS#4

Non-destructive Examination (NDE) procedures (including mandatory AUT NDE for all main pipeline girth welds)

Contractor shall integrate SH&E mitigation measures into Construction activity procedures/work instructions in order to mitigate or eliminate all SH&E risk, which may affect the employees, environment and community nearby the Construction Sites/Areas. This applies in particular for work alongside high traffic areas, works inside the operations OCS4, Wang Noi Metering Station, RA6, works alongside the operational FTP and Ratchaburi-Wang Noi high pressure gas pipelines and works across other operational gas pipelines (Simultaneous Operations, SimOps).

Pipeline installation procedures shall include, but not be limited to, addressing the following issues:

Procedure for crossing over or under existing PTT pipelines and other foreign services and utilities

Procedure for working near PTT, EGAT and other foreign facilities, including erecting exclusion fencing or rope to isolate the areas where required

Procedure for working inside the DOH and DRR ROW, including the mitigation plan for minimizing any impact to the traffics and landowner housing adjacent to the Highway

Procedure for working at the defined sensitive areas, required by the EIA, including mitigation plan for minimizing any impact such as the issues of dust, noise, etc.

Procedure for liaison with landowner and tenants living adjacent to the new PTT ROW and Work area

Design and Calculations

Design and calculations shall include, but not be limited to, addressing the following items:

Buoyancy control

Vehicle loading at road and railroad crossings

Minimum cover for work over existing pipelines

Structural elements and supports

Building and foundation design

Drainage system design



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Retaining wall design

Fire wall design and calculations

Load verification for existing retaining wall (e.g. RA6 retaining wall)

Soil stability study for trenching, sheet piling, bracing and shoring

Various CP and AC Mitigation calculations (refer to Section 6.8)

Pipe pulsation and vibration analysis

Pipe stress analysis

Relief valve size

Blow down and vent dispersion studies, flare load design and calculations, including Vent and silencer sizing

Noise and mitigation studies

Metering system sizing

Pipe wall thickness calculations

Control valve sizing

HOV / SDV sizing

Filter design

SIL verification

Fire water system calculations

Cable Sizing

Short circuit calculations

Instrument air / gas system design and calculations

Electrical load calculations

Earthing and lightning calculations

Lighting illumination study

Hydraulic Analysis



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Pressure drop calculations for all process flow line systems

Line break detection and study

Various telecommunication study (e.g. radio coverage study, and bandwidth calculations)

Utility requirement study (e.g. calculations for deep well design)

Building service system design and calculations

Fire suppression design

Calculations as required in narrative specifications

Soil Stability study and Soil Settlement study

Fire and Gas Mapping Study

Data Sheets

Data sheets shall include, but not be limited to, addressing the following items:

All valves and fittings (e.g. hydraulic actuators, barred tees, hot tap split tees, etc.)

All instruments and control

All vessels (e.g. filters, etc.)

All piping equipment (e.g. silencer, etc.)

All pipeline and special equipment (e.g. scraper traps, insulation joints, magnetic markers, etc.)

All architectural (e.g. furniture)

All electrical equipment

All telecommunication equipment

All safety equipment (e.g. fire extinguishers, emergency eye wash showers, etc.)

All CP and AC Mitigation equipment

Schedule/Lists

Schedule/lists shall include, but not be limited to, addressing the following items:



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Instrument Index

Valve schedule

Line List

Tie-in list

Cable schedule

I/O list and mapping

FOC and manhole Schedule

CP & AC Mitigation Schedule

Sale Tap Schedule

Pipeline Equipment Schedule

Pipe book

Specifications

Contractor shall provide all necessary Specifications. Contractor shall review and revise as necessary, the Specifications provided by PTT in Part 3 Exhibit D. Contractor shall develop all other necessary additional Specifications. Contractor shall submit all applicable Specifications for PTT’s approval.

P&IDs

During detailed engineering, the Contractor shall incorporate into the P&IDs all pipes, valves, blinds and instruments as required for safe pipeline and facility operation, easy maintenance and all required start-up lines including the following items:

Equipment tag numbers

Low-point drain lines to slop system/closed drain system

High-point vents and drains required for hydro pressure test

Local pressure and temperature indicators on equipment, pressure vessels, etc., as per PTT’s request

Purge and drain connections for the above-mentioned equipment for maintenance as per PTT’s request

Valves, check valves, instruments and all control signals, required by the results of the HAZOP Study

Adequate instrument redundancy and performance as per Safety Requirement Specification



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Start-up and by-pass piping for equipment, as required

Additional shut-down and interlock functions for equipment, as required

Flush and blow-out connections on equipment, as required for pre-commissioning and maintenance

Insulation thickness on all piping and equipment in accordance with existing PTT systems

Contractor shall submit silencer sizing calculations for Block Valve Stations and Facilities vent silencers and incorporate silencer requirements into the PFDs and P&IDs.

Contractor shall prepare pressure drop calculations for all process flow line systems, control valves, match up all nozzles on equipment with attached piping, confirm design pressure and design temperature on each pipeline and indicate where design temperature and/or pressure changes are located, as necessary, to incorporate results of the HAZOP Study.

Contractor shall be responsible for setting equipment and piping design pressures based on the operating conditions shown on the process flow diagrams, using guidelines described in the Project Piping Specification and Design Basis Manual. Contractor shall be responsible for all line sizing in accordance with Piping Specification. All documents, lines, instruments and equipment shall be numbered in accordance with Project Procedures. Symbols and legends shall be in accordance with Project Symbol and Legend P&ID and with ANSI/ISA Standard S5.1. Control and shutdown logic inputs and outputs shall be numbered and cross-referenced on SAFE (Safety Analysis Function Evaluation) charts and on logic diagrams prepared by Contractor. Contractor shall develop the Safety Requirement Specification, SIL verification study, calculation and other required studies or calculations in accordance with IEC 61511 and Safety Life Cycle Document requirements. ESD/Shutdown hierarchy in conjunction with control philosophy shall be engineered and provided for following logic implementation on DCS and SIS systems. Contractor shall list all lines on Designation Tables, which show the selected pipe size, the calculated pressure drop and velocity, flow rate, pipe material class, operating and design pressures and temperatures and hydrotest pressures. Contractor shall size and select relief valves, vent blow down valves, orifice plates based on API STD 521 and API STD 520 sizing criteria. Sizing calculations shall be submitted for PTT’s review.

Hazard and Operability Study (HAZOP)/SIL Verification Study

The Contractor shall perform a HAZOP study, which shall address all final design considerations including the specific type of equipment and materials that the Contractor will procure, for all facilities including any related existing equipment, facilities and systems at the interface. The Contractor shall perform a separate SIL Determination/Verification Study to ascertain equipment Safety Integrity Levels.



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Any changes from detailed design review, results of HAZOP and SIL Determination/Verification Study, including the cost and schedule consequences thereof, shall be the responsibility of Contractor. Contractor shall perform SIL Determination by Quantitative method using combination of a Calibrated Risk Graph and Layer of Protection Analysis (LOPA) and Independent Protection Layer (IPL).

Contractor shall develop Safety Requirement Specification (SRS) based on PTT specification.

6.3 MECHANICAL DESIGN

Mechanical design shall include, but not be limited to, the following:

Piping and Equipment Lay-out

The Contractor shall prepare piping and equipment lay-out drawings for the facilities described in this document.

Equipment and piping layout, including clearances, valve and instrument accessibility, etc., shall follow the guidelines of internationally recognized standards, subject to PTT’s approval. Emergency access and escape shall be given special attention. Alternative access to working platforms and emergency lighting shall be provided for the main access routes and in appropriate buildings. It is essential that personnel can easily evacuate the area if there is a hazardous release or fire threat. Vents and stacks shall be located to prevent any hazard to personnel or equipment. Operating personnel on nearby column platforms and facilities shall not be endangered by flue gases.

The Contractor shall prepare final area classification Drawings overlaid on the plot plans, to show the horizontal and vertical extent of Class I, Divisions 1 and 2 areas. Spacing shall be in accordance with Industrial Risk Insurer Standards.

Pulsation and Vibration Analysis

The Contractor shall analyze pulsation and vibration effects where above grade piping is proposed and, where excessive pulsation and vibration are identified as being likely to occur, and shall design for avoidance or recommend mitigating measures. The Contractor shall submit all supporting calculations to PTT for approval to proceed.

Pipe Stress Analysis

The Contractor shall design above grade piping to ensure that adequate flexibility is provided. The Contractor shall submit all supporting calculations to PTT for approval to proceed.

Noise Mitigation



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The Contractor shall analyze potential excessive noise sources, such as pressure regulating devices, and recommend noise mitigation or abatement measures.

Pipeline Welding Requirements

The Contractor shall develop welding and NDT procedures for the pipeline and appurtenances for PTT approval and shall qualify all procedures, welders and NDT operators. All welding procedures and welding personnel shall be qualified in Thailand.

Buoyancy Control

The Contractor shall determine the extent of buoyancy control required, if any, beyond what is already shown on the project alignment sheets. The Contractor shall prepare calculations to determine buoyancy control requirements. Buoyancy control shall be by use of screw anchors unless otherwise approved by PTT.

A soil investigation of the route has been performed and a report is provided in Exhibit I. The Contractor shall verify the accuracy of this report and perform any additional soil investigations necessary to determine buoyancy control requirements.

Basis of design for buoyancy control shall be as follows:

Fluid density - to be determined based on detailed design by the Contractor

Safety factor for screw anchor components – 2.0

Minimum hold-down capacity of screw anchor pair - to be determined based on detailed design by the Contractor

Maximum screw anchor spacing - to be determined based on anchor capacity and stress analysis

Buoyancy control design shall limit maximum stress and deflection in the pipelines to acceptable levels as defined in ASME B31.8.

HDD and Horizontal Boring Requirements

The Contractor shall design horizontal bores and horizontal directional drills at specific sites as shown on the project drawings and where chosen by the Contractor. The design shall include a plan and profile of each proposed site, associated stress calculations, and drill pit layouts. Contractor shall perform geotechnical surveys in necessary intervals along the HDD / bore route to determine the geotechnical strata as required for the HDD and bored crossing design. Workspace, bore pits, extra working space and site access shall be shown on the design drawings. Designs shall include SH&E mitigation measures and management of spills or bentonite loss out of the bore. The Contractor shall provide Drilling Fluid Waste Management plan, method to dewatering or solidification, related equipment subject to PTT approval prior to commencement of works. Drilling Fluid shall be solidified/dewatered before transport to the approved disposal area.



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Minimum depth of cover for Bored and HDD crossings shall comply with relevant permit authorities’ requirements.

Mechanical and Piping Equipment and Materials

Contractor shall review all Vendor design documents, specifications and drawings (including packaged equipment) and shall ensure compliance of the vendor design with the project requirements. Any technical deviation from project requirements for vendor equipment shall require the written approval of PTT.

Pipe Wall Thickness Considerations

For 42” pipeline, two WT line pipes are provided by PTT, 25.4 and 20.62 mm. WT of 25.4 mm shall only be used by Contractor for hot bends, open cut road crossings, bored crossings, and HDDs. WT of 20.62 mm shall be used for all general sections.

For 36” pipeline, two WT line pipes are provided by PTT, 22.23 and 19.05 mm. WT of 22.23 mm shall only be used by Contractor for hot bends, open cut road crossings, bored crossings, and HDDs. WT of 19.05 mm shall be used for all general sections.

The 5TP pipeline system shall be designed for live load requirements according to API RP 1102.

Concrete Protection Slabs

Contractor shall take note that continuous coverage of the pipeline with concrete protection slabs for all areas alongside roads and highways as noted on alignment drawings and specifications is required.

Continuous Concrete Coatings

Contractor shall take note that continuous coverage of the pipeline with continuous concrete coatings for all major waterway crossing and ponds as noted on alignment drawings and specifications is required.

Station Locations

Contractor shall be aware that the current BVS locations are preliminary. Contractor shall install the BVS on the plot, which will be designated by PTT and which may not necessarily be same as the current BVS locations.

Over Pressure Protection, Vent, Flare and Relief System Design

Contractor shall be responsible for sizing all combustible excess gas and liquid process and utility relief’s in accordance with the Codes and Standards. High-pressure shutdowns and pressure regulation should be used where necessary instead of blocked-outlet pressure relief.



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A High Integrity Pressure Protection System (HIPPS) shall protect the downstream facilities from overpressure by the upstream. The overpressure protection design shall be completed as early as possible and shall be reviewed and approved by PTT. Before the piping and instrument diagrams are classified “Work May Proceed,” the Contractor shall submit to PTT the final design in the following form:

Statement of design basis/Control & Operation Philosophy

ESD logic/hierarchy

Safety life cycle study

Safety Requirement Specification

Pressure relief valve summary table, giving flow rate, temperature, molecular weight, etc. for each safety valve for each relieving case

List of control valves, hand-operated valves and restriction orifices considered in

pressure relief valve design with indication of maximum allowable Cv value or

orifice diameter with relief procedure for each typical station

List of valves considered in pressure relief valve design with schedule of maintenance and testing requirements

Flare load analysis

PTT may, at their discretion, call for back-up information such as calculations or other details. The final version of the above information shall be included in the facility operating instructions.

The Contractor shall develop the blowdown systems design for blowdown of any section of the 5TP according to the Design Basis Manual. The detailed design shall include sizing of the vent lines, stacks, blowdown valves and orifice plates.

The Contractor shall carry out a Qualitative Risk Assessment for potential blowdown operations including recommendations for operations practice.

Reliability analysis techniques shall be used to quantify the reliability of an overpressure protection. The main terms and methods of analysis to be used shall be subject to PTT approval.

Fire Protection

A Fire alarm system shall be provided to each control building. The system shall include, but not limited to, fire control panel, smoke detector, Heat detector, manual call points, horn and beacon. For control building with IG-541, alarm signal shall be sent to fire control panel in order to automatically switch-off air conditioners & ventilation fans, and to activate the Fire protection system.

A Fire and Gas Detection for Process area of facility station, to cope with the fact that, in spite of all described measures, a gas leak could ignite; measures of the so-called secondary fire and explosion protection type shall be provided by the Contractor to



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protect personnel as well as equipment. Fixed/mobile fire water and fire extinguishing equipment shall be provided at each station facility. A fire detection and alarm system shall be installed at each Block Valve Station, GDF4, TP5MXS, BP4, WNMR, RA6MXS; in accordance with the NFPA standards and this document.

At GDF4 and WNMR, the existing WNMR firewater hydrant shall be extended by the Contractor to provide cooling water protection for the new facilities from firewater hydrants located at the new hydrant section.

WNMR & RA6 control building shall have Fire protection system and if activated, it shall command trip/shutoff HVAC system in order to stop fire efficiently. Fire suppression system shall be designed as part of fire protection system; IG541 shall be activated in case of fire.

For further requirements, reference is made to Design Basis Manual, ED-A-1504.01-010-005.

6.4 CIVIL DESIGN

Civil design shall include, but not be limited to, the following:

Site Preparation

The Contractor shall determine cut and fill requirements for the facilities described in this document and develop site preparation drawings. The design shall be justified by stability calculation and approved by PTT.

The Contractor shall include for soil improvement of existing ground to minimize settlement from backfill.

Access Roads

The Contractor shall provide paved access road to connect public road for all stations. The design shall carefully consider correct slopes, retaining walls, slope protection, road curvature and crash barriers on the access road ramp.

Any low hanging existing power cables obstructing BVS and facilities access roads shall be raised by Contractor in coordination with PEA/MEA to allow for at least 6 meters of ground clearance when accessing the BVS.

The front side of any station, when alongside a paved road, shall have a concrete wall. The same applies for side or back walls of stations when nearby community areas.

Site Drainage



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The Contractor shall design drainage systems for all stations. The drainage systems shall connect to public drainage system. In addition, Contractor shall repair and reinstate any drainage systems impacted by Contractor’s construction activities.

Compaction Requirements

The Contractor shall determine selection of fill and back-fill materials as well as compaction requirements for all stations and at all crossings. Contractor shall ensure that the selected parameter, in particular the modulus of soil reaction, matches the selected backfill material and degree of compaction.

For Station and its boundary located in soft soil area (e.g. soft clay, which unconfined compressive strength, qu, is less than 50 kPa), soil improvement is required to improve the properties of soil base. Contractor shall design and provide work method statement submitted to PTT before proceeding to work. The cost of soil improvement shall be borne by the Contractor.

Piles Supports and Spread Footings

The Contractor shall determine the requirements for pile supports and develop detailed design for piling and spread footing supports, as required, for all stations. The Contractor shall submit all supporting calculations to PTT for approval to proceed.

The Contractor shall design the system to minimize and avoid differential settlement, especially on the pipeline to station. The Contractor shall provide soil improvement or any control method to ensure that the settlement will not cause defect to pipeline in long term. Any additional protection/mitigation measures that are recommended by soil settlement study or pipe stress analysis during detailed design shall be the Contractor’s responsibility.

Building and Equipment Foundations

The Contractor shall develop detailed design for building and equipment foundations, for all stations. The Contractor shall submit all supporting calculations to PTT for approval to proceed.

The building design shall follow Owner’s Energy Savings Project, and the building energy efficiency should be supported by calculations. The building shall be aesthetically designed by an Architect.

The building and layout overall design shall be designed by a renowned architect.

SCADA Control and Guardhouse Buildings

The Contractor shall develop detailed design for SCADA control and guardhouse building.

Portable Water Supply



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The Contractor shall provide portable water supply at all stations connected from public water supply; if available, including storage tanks and structure, filters, plumbing, fixtures. If public water supply is not available, Contractor shall provide deep water well, submersible pump and accessories.

Sanitary Sewer

The Contractor shall develop detailed design drawings for sanitary sewers for all stations as required.

Final Grade and Fencing

The Contractor shall develop detailed design drawings for final grade and fencing for all stations, as required.

Pipe Supports and Pipe Rack

The Contractor shall develop detailed design drawings for pipe supports and pipe rack for stations. The Contractor shall submit all supporting calculations to PTT for approval to proceed.

Main Shelter and Overhead Crane

The Contractor shall develop detailed design drawings for main shelter and overhead crane. The Contractor shall submit all supporting calculations to PTT for approval to proceed.

Miscellaneous Shelters

The Contractor shall provide approved design shelters where required for equipment protection or indicated in drawings/specifications.

Temporary Support for Construction Activities

The Contractor shall design temporary support for both facilities and pipeline construction. The Contractor shall ensure that all phases of construction are constructed safely. The Contractor shall submit all supporting calculations to PTT for approval to proceed.

6.5 ELECTRICAL DESIGN

Electrical design shall include, but not be limited to:

AC/DC UPS

Grounding and Lightning Protection (Aboveground and Underground)



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Power and Control including Underground Duct Banks and Conduit

Lighting System

Power Supply and Distribution

High Voltage Power Feeder Cable and Transformers

The equipment, material, installation and design of the electrical work shall conform to the applicable sections of the latest editions and amendments of the codes, standards, and recommended practices referred to in the various electrical specifications.

The Contractor shall prepare electrical drawings in accordance with the Technical Requirements. Drawings shall include symbols, single line diagrams, schematic diagrams, interconnection diagrams, cable and raceway schedules, installation details, hazardous area classifications, electrical plans, nameplate schedules, lighting panel schedules, and other drawings as required by the specifications.

Contractor shall provide new and separate power supply system(s) and batteries as required to service the requirements of the project.

Contractor shall provide new electrical supply lines and poles to serve the new stations facilities as necessary, and tie-ins to existing local power grids. New transformers shall be provided by the Contractor.

The Contractor shall provide perimeter lighting, area lighting, and all other electrical power requirements at all new facilities.

Electrical equipment in hazardous areas shall be designed in accordance with the area classification drawings per the Technical Requirements. Contractor shall prepare the final area classification drawings and submit the same to PTT for review. All equipment shall be grounded to avoid build-up of static electricity.

6.6 CONTROL SYSTEM AND INSTRUMENTATION DESIGN

6.6.1 General

Contractor’s instrumentation and control system design shall ensure that the following objectives are met:

Provide safe facilities

Provide facilities that comply with the technical requirements

Install equipment, monitoring and control devices that will allow optimum remote operation of the facility at the given design conditions while requiring a minimum of supervisory, operating, and maintenance personnel



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Provide automation and controls to prevent environmental pollution

Instrumentation wiring, including fire detection and gas detection systems

Electrical power supply for Instrumentation and control systems shall be 24 VDC. The supply for work station and server shall be 230 VAC 50 Hz.

All design documents (such as instrument data sheets, specifications, instrument index, calculations, etc.) and drawings (such as loop diagrams, logic diagrams, IS dossiers, instrument wiring diagrams, instrument installation details, etc.) shall be submitted for review and approval by the PTT.

Contractor shall review all Vendor design documents, specifications and drawings (including packaged equipment) and shall ensure compliance of the vendor design with the project requirements. Any technical deviation from project requirements for vendor equipment requires written approval of PTT.

Contractor shall be responsible for complete design of the control and instrumentation systems. This shall include complete end-to-end design of instrument loops including field instruments, cabling, intrinsic safety/galvanic isolation barriers, RTU controllers and interlock/control logic programming.

Contractor shall integrate field instrument loops and signals with DCS, RTU’s to allow the data to be transferred to the pipeline SCADA system.

6.6.2 Instrumentation and Control System Design

In designing the instrumentation and control system, the Contractor shall carry out the following requirements:

Prepare piping & instrument diagrams (P&IDs) for process and utilities (refer to standards ANSI/ISA-S5.1 “Instrumentation Symbols and Identification” and ISA-S5.3 “Graphic Symbols for Distributed Control/Shared Display Instrumentation, Logic and Computer Systems”).

Select the appropriate field instruments and control elements to meet the process and safety requirements.

Develop control, alarm and shutdown logic diagrams for all process, utility, fire & gas, HVAC, electrical, control, instrument and ESD systems. These logic diagrams will be used for programming the RTU’s.

Develop the instrument loop diagrams for all process, utility, fire & gas, HVAC, electrical and ESD systems. These loop diagrams will be used during construction for wiring of field instruments/control devices (via field junction boxes) to the RTU’s installed in the various control buildings. The instrument loop diagrams are also used for loop checks during pre-commissioning by start-up technicians.

Prepare Instrument Index listing all instruments and control devices. Instrument index shall contain, but not be limited to following information:



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a) Index Number

b) Tag Number

c) Service Description

d) P&ID Number

e) Equipment Number or Line Number

f) Location (i.e. Field, RTU, SCADA, etc.)

g) To/From SCADA

h) Instrument Type

i) Size & ANSI Rating

j) Data Sheet Number

k) Purchase Order Number

l) Loop Diagram Number

m) Signal and Communication Configuration

n) Signal List / I/O List

o) Manufacturer & Model Number

p) Instrument Range & Engineering Units

q) Set Point

r) Remarks

Prepare Instrument Installation Details with the necessary on-line testing and calibration provisions for (but not limited to) the following:

a) Transmitters, Control Valve, Shutdown Valve, Meter

b) Multi-transmitters on Common Mounting Bracket

c) Instrument installation shall be designed with the capability of performing on-line testing and calibrations.

Prepare Instrument Data Sheets for obtaining quotations and procurement of all instruments and control devices.

Provide design calculations for transmitter ranges, if required (suppression or elevation).

Provide instrument and control design input to piping isometric drawings prepared by piping design personnel. Ensure that all instruments and control devices are shown on piping isometric drawings. Isometric drawings shall be checked for the following as a minimum:

a) Proper instrument locations on pipes and vessels

b) Instrument connection size and rating

c) Accessibility for ease of operations and maintenance

d) Minimum upstream/downstream straight pipe lengths for flow meter runs

e) All gas flow meters shall be ultrasonic type (USM) for custody transfer. Each USM station shall include fully redundant sensors, field controls and transmitters. This redundancy shall allow one failure of flow transmitter, or maintenance to sensor without flow reading interruption



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or accuracy degradation during the maintenance or parts replacement period.

6.6.3 Fire and Gas Detection

All stations shall be equipped with fire detection for control building and alarm systems separate from Process Fire and Gas System.

Contractor shall perform the Fire Risk Analysis for all stations then design process fire and gas detection to be in compliance with TUV AK Class 6 to ensure fire and gas events are detected with high probability and high diagnostic capability. The 3D model shall be utilized to perform this analysis. The detailed design of the system shall follow the requirements of NFPA.

6.6.4 CCTV System

All stations shall be equipped with CCTV systems. The CCTV shall be designed to ensure that PTT operators in the PTT Regional offices are able to remotely monitor all station areas.

New CCTV servers shall be provided at GDF4 (OCS4), WNMR, BV5.8 and RA6MXS with sufficient capacity to record and playback all cameras along 5TP.

6.7 SCADA / COMMUNICATION SYSTEM DESIGN

Contractor shall be responsible for equipment layout and detailed drawings to support installation of SCADA and communications equipment at the pipeline facilities, including the Chonburi Operations Centre, backup control center at Pan Tong, all the new stations, and for revising the displays and databases for the existing Wang Noi Metering Station, existing OCS4 Station, and existing RA6 mixing station.

Contractor shall perform detailed design of SCADA databases, graphics displays and reports to customize the core SCADA system to provide project specific functions for the monitoring and control of the 5TP gas pipeline.

Contractor shall perform vendor/equipment specific system design and configuration of each communication system including the UHF radio system, Fiber Optic cable system and Fiber Optic transmission system.

The existing pipeline control center is located at the Chonburi control building with a backup control center at Pan Tong. The physical buildings including shared common facilities such as power, 230 VAC UPS, lighting and computer raised flooring will be provided by the PTT. Contractor shall provide wiring, cabling and equipment specific to SCADA and communications for this project. Additional network equipment shall be provided for supporting communication to RTU’s of 5TP.

At each Station, the Contractor shall provide voice telephones with hands free speaker phone feature to be connected to the fiber optic communication equipment.



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Field instruments will either terminate onto the existing DCS or onto a SCADA RTU. All instruments within the station areas will use hardwired connections with the exception of those connected to the custody transfer flow computers, which shall use a HART Protocol. Process data from instruments associated with pipeline operation but terminating onto Terminal DCS shall be sent to the SCADA host via a serial communication link using a commonly supported protocol such as MODBUS from the DCS host or a gateway device. Similarly, pipeline process data (such as gas composition data and flow rates) required by the Station DCS shall be sent by a serial communication link to the DCS host or gateway.

Contractor shall perform Vendor/equipment specific system design and configuration of each communication system, UHF radio system, IP telephone system, fiber optic cable system and fiber optic transmission system. The fiber optic system is required to be self-healing and allow continued operation as two independent systems.

Major systems include:

Fiber Optics based communication system along the sales gas pipeline ROW, consisting of 2 buried HDPE ducts, manholes/pull boxes, a multicore Fiber Optic cable, cable splicing/termination hardware and optical transmission equipment. For the 5TP Phase 2, this system shall start at the BV5.8 Midline Station and interconnect all pipeline Block Valve Stations up to and including the ends of the pipeline at the RA6 Mixing Station, Wang Noi Metering and Regulating Station. The system shall provide voice and data communications between the Chonburi OC, Pan Tong backup control center and Block Valve Stations and other facilities along the pipeline.

Contractor shall provide FOC manhole with splicing closure for all sales tap to significant customers (demand > 5 MMSCFD or sales tap valve size 8” and above) as per PTT’S DCM.

UHF radio system consisting of a multi-channel base station and repeaters/towers located along the pipeline. The system shall also include 10 portable handheld radios and an upgrade of the existing central dispatcher console at the Chonburi OC and interconnection to the telephone system.

CCTV system consisting of a minimum of 3 CCTV cameras for block valves stations and a minimum of 5 CCTV cameras for the large stations. The system shall also include an upgrade of the existing PTT video management system at PTT regional control rooms.

Interconnections between new system and existing system (Fiber Optic, UHF and CCTV systems and the IP Telephone system).

Modification and expansion to the existing SCADA system software for retrieval and management of pipeline related operating information from field devices via RTU’s. Detail is specified in Specification for SCADA System Expansion and Modification.



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RTU’s at block valve stations to facilitate remote monitoring and control from the pipeline SCADA system at the Chonburi OC, refer to the SCADA/RTU System Architecture Drawing.

Communications to the pipeline RTU’s shall be provided as part of the fiber optics communication system.

6.8 CP and AC Mitigation Design

Specific engineering tasks include, but are not limited to, the following:

Permanent impressed current cathodic protection for all buried piping and appurtenances

Stray DC interference studies and testing, and both temporary and permanent mitigation

Cross bonding and CP system integration with existing PTT pipelines and other underground utilities, where required

Remote monitoring of rectifier DC output (voltage and current) and pipe to soil potentials at block valve sites that communicate via PTT Net or SCADA

Online Remote Operation Current Interrupter System

AC interference studies and mitigation

Temporary CP system during construction through impressed current system commissioning

Contractor shall execute CP and AC mitigation design, installation, commissioning and testing utilizing technical specialists or subcontractors with demonstrated expertise and experience with CP installations in Thailand.

Computer modeling techniques, with state of the art software, shall be used to study and evaluate the degree of AC interference and to design the mitigation system. Native file of all database and analysis shall be provided for PTT review and submitted as part of final document.

Tests shall be conducted after installation to demonstrate that the steady state design criteria are satisfied.

The need for additional insulating joints shall be evaluated during the detailed design layout.

The AC interference study shall include soil structure analysis from the soil resistivity survey data.



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CP attenuation calculations shall be performed to demonstrate that the proposed systems will adequately protect the entire pipeline at the maximum design-coating breakdown defined in the Design Criteria.

Voltage gradient calculations shall be performed to demonstrate that the proposed anode beds are electrically remote from the mainline, and will not cause electrical interference with other structures.

Design calculations shall be performed to demonstrate the anode life, ground bed resistance, rectifier outputs, etc.

A complete and detailed CP design and stray DC interference analysis (including bonding to adjacent pipelines and structures) and drawings shall be developed and submitted for review and allowance to proceed.

The AC interference study shall include computer modeling analysis and subsequent design with state of the art and industry accepted software.

A complete and detailed interference study and mitigation analysis shall be prepared, following by mitigation design drawings. These shall be submitted for review and allowance to proceed.

The pipeline will be evaluated for electrical interference from nearby AC & DC power systems.

The PTT has performed soil resistivity testing along the proposed pipeline route. Additional soil resistivity surveys may be required to determine the soil structure in the areas of AC & DC interference, and for the evaluation and design of the impressed current anode beds.

Temporary and permanent CP and ACM facilities shall preferably be located on the new PTT ROW. Contractor shall notify PTT well in advance (six months, minimum) if additional land is required for CP and ACM facilities. Acquisition of land for permanent CP and ACM facilities shall be by the PTT.

6.8.1 Drawings

All proposed installations and devices shall be specified and located on the Pipeline Alignment Drawings by an appropriate legend.

Typical drawings shall be prepared for the CP and AC & DC mitigation devices.

Site specific drawings shall be prepared for each transformer rectifier CP and negative drain station.

One line drawings shall be prepared detailing the CP circuitry.

All drawings shall be revised to “as-built” versions after construction and submitted to PTT.



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6.8.2 Detailed Design Drawing List

The Contractor shall, at a minimum, prepare the following drawings:

Item No. Title

1. Test Station – CP Potential

2. Test Station – Foreign Line Crossing

3. Test Station – Cased Crossing

4. Test Station – IR Drop Current Span

5. Test Station – Insulating Joint/Flange

6. Test Station/Junction Box – Bonding

7. Test Station – Reference Electrode Installation

8. Cable to Pipe Appendixes – Exothermic Welds

9. Below Grade CP Conductor Installation

10. Junction Box – Positive Anode

11. Junction Box – Negative Drain

12. Impressed Current Anode Installation – Shallow

13. Impressed Current Anode Installation – Deep

14. Impressed Current Anode Installation – Distributed

15. Transformer Rectifier Installation

16. Sacrificial Anode Installation

17. One Line Diagram – Mainline & Station CP/AC Circuitry

18. CP Remote Monitoring – One Line Diagram

19. Gradient Control Wire Installation – Zinc Ribbon – Mainline

20. Gradient Control Mat – Zinc Ribbon – Test Station

21. Fault Shield & Ground – Zinc Electrode – Mainline

22. Gradient Control Grid/Mat – Zinc Ribbon – Block Valve

23. DC Decoupling Device – Mainline Insulating Joints, Connections to Copper Grounding Media

24. Surge Arrester – Insulating Flange Protection (Non-Steady State AC Interference Areas)

25. Temporary Ground Mats, Grounds and Bonds

26. Transformer Rectifier Station (layout and circuit, including permanent reference electrode, 4 wire ID drop test station, etc.)

27. Coupon Test Station, Typical, used in stray DC interference areas

6.8.3 Cathodic Protection – AC & DC Mitigation System Design Book

A cathodic protection – AC & DC mitigation system design book shall be prepared jointly by Contractor and Contractor’s specialist CP design subcontractor. The book shall contain the following:

1. Description of System and Equipment

2. Installation Summary

3. Design Calculations – Cathodic Protection

4. AC & DC Mitigation Computer Model Design Summary



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5. Soil Resistivity Data and Soil Structure Calculations

6. Specifications

7. Drawings

8. Pre-commissioning, Commissioning and Post Commissioning Forms and Procedures

9. Material Requisitions

10. Memorandums

11. References

7.0 SAFETY, HEALTH AND ENVIRONMENTAL COMPLIANCE


The Contractor shall establish, document and maintain a Safety, Health and Environmental Management System including plan/program in accordance with SH&E Specification and implement an Environmental Monitoring Program. As part of the program, the Contractor shall prepare, and submit to the PTT for review, an Environmental Monitoring Plan and Environmental monitoring reports.

The Contractor shall prepare and develop specific SH&E procedures for the Project and submit to PTT for approval within 30 days after Contract award.

7.2 GENERAL

The PTT’s Safety Health and Environmental Specifications SP-X-1504.01010-001 and 002 and the Environmental Impact Assessment Report (EIA) are included in Part 3. The EIA identifies safety and environmental issues, which could impact the design, installation, operation and/or maintenance of the pipeline system. The Contractor and its subcontractors will be responsible for strictly complying with the specifications, EIA and associated monitoring programs. PTT shall engage a specialist environmental monitoring Contractor and Contractor shall co-operate with and assist this subcontractor in obtaining all necessary data and assistance in order for him to perform his duties.

Environmental awareness training shall be provided for all workers.

As a minimum, Contractor shall provide a full-time, qualified pipeline safety and full-time environmental specialist on the project at all times. The specialist shall be responsible for at least, but not limited to, the following activities:

Providing and implementing environmental planning and assessment

Developing and implementing environmental management programs

Performing Environmental audits and monitoring

Preparing monthly reports to be submitted to the PTT



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Contractor shall provide photographs and video tapes of the construction site and any nearby environmental or cultural sensitive areas nearby (pre-construction, during construction, and post-construction) to compare and implement restoration activities to return the site to its original state.

The EIA provided Exhibit J, is in the Thai language. An English language version is also provided to assist Contractor; however, should there be any discrepancies, the Thai language version shall prevail.

7.3 PREVENTION OF AIR AND WATER POLLUTION

Contractor shall perform the work using methods and equipment, which shall minimize the discharge into the atmosphere of smoke, dust, or other contaminants in accordance with the statutes and regulations of the Authorities having jurisdiction over the work and Article 21.0 of the General Conditions.

Contractor shall at all times maintain equipment on site to contain, capture and clean up any accidental release of harmful chemicals, pollutants or other materials into the environment. Spills are to be cleaned up immediately. Spills on water shall be removed by vacuum pumping. Land spills shall be cleaned up by using an absorbent material, such as straw, and the contaminated straw hauled to a disposal area. Disposal of spill material and waste oil shall be accomplished by burning if recycling is not practical.

In particular, care must be taken by Contractor during filling and disposal of water from the pipeline during cleaning and after hydrotest to ensure that excessive amounts of solids, sludge and neutralizing chemicals are not discharged to the environment. The tested water shall be released at a velocity that does not lead to erosion and scour onto splash plates using a straw bale structure, or approved equivalent, for filtering. The straw bale structure shall be placed in such an area to allow additional filtration through natural vegetation prior to entering the river or waterway.

Contractor shall implement drainage alteration so as to minimize earth disturbance. Any temporary drainage alteration shall take place for the shortest time possible. Streams and ditches shall be reinstated to their original condition. Drainage channels shall not be blocked by berms or rock.

Contractor is restricted from widespread use of pesticides. Control of biting insects shall be on a personal basis. Any localized spraying around campsites shall be in accordance with governmental regulations concerning the use of pesticides.

Contractor shall provide base camps with sufficient numbers of mobile toilets. The waste water collected from washing activities shall be collected in a treatment pond or any collection unit, which shall not pollute any waterways.



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7.4 NOISE REDUCTIONS DURING CONSTRUCTION

Active noise reduction measures shall be employed by Contractor during construction activities close to populated areas, staying within the noise limits of the EIA report.

7.5 WORKING TIME

Contractor shall not work in excess of 10 hours per day, six days per week, outside of the hours from 06:00 am until 06:00 pm nor on public holidays without specific PTT written permission and the agreement of the various local and national authorities having jurisdiction over the Work.

7.6 DISPOSAL OF WASTE MATERIAL

Contractor shall segregate, collect all right-of-way debris resulting from its activities on a daily basis and dispose of such debris in an area and in a manner accepted by the PTT and Authorities having jurisdiction over the work.

Contractor is responsible for obtaining necessary permits for waste transportation and disposal. Waste records and pictures shall also be submitted to PTT as requirement for EIA monitoring report.

Sufficient collection bins shall be provided by Contractor. Waste burning on site are strictly prohibited.

Bentonite from HDD shall be mixed with natural materials such as soil, husk, straw bale, etc., before use for land filling at designated area. Dumping site shall be subjected to PTT for approval. Record of disposed bentonite volume shall be submitted to PTT as requirement for EIA monitoring report.

7.7 HANDLING AND STORAGE OF FUELS AND HAZARDOUS MATERIALS

The use of hazardous materials shall be carefully controlled. All such materials shall be clearly labelled and used only by selected authorized personnel.

Storage sites for fuels, flammable and hazardous materials, which are installed by Contractor, shall be located a minimum distance of 500 meters from any water body. These sites shall be selected to ensure that no risk of contamination of water bodies or other sensitive environments would result from an accidental spill at the site. Any leakage shall be readily detected and contained.

All storage sites of fuels, flammable or noxious chemicals designed to hold in excess of 50 barrels shall be surrounded by an impermeable berm, which shall be of sufficient capacity to contain 110 percent of the volume of liquid stored.



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Extreme care is to be exercised to prevent spillage during refueling and oil changing operations. Construction equipment and vehicles shall not be fueled or serviced within 100 meters of a water body where practicable. Should an accidental spill occur, Contractor shall notify the PTT and the authorities immediately and shall contain, clean up and dispose of the spill at the appropriate sites in an expedient manner.

All fuel and service vehicles shall carry a minimum of 10 kg of a suitable commercial absorbent material approved by the PTT. This material shall be used for the clean-up of all fuel or oil that is accidentally spilled. All material shall be controlled and disposed of at government approved hazardous waste disposal locations.

7.8 RIVERS OR STREAMS

Contractor shall ensure that:

All activities in or near rivers or streams be kept to an absolute minimum. If activities are necessary, after construction the Contractor shall reinstate the waterway to its original condition.

No debris of any kind shall be placed or left where it will enter the river or stream. Earth material shall not be dumped in rivers or waterways.

All equipment crossing streams or rivers shall do so at a designated location so that watercourse crossings are kept to a minimum.

All hydraulic, fuel and lubricating systems on operating equipment are to be kept in good repair to avoid leakage of petroleum products into watercourses.

The depositing of any harmful substance in water frequented by fish, or in any place where harmful substances could enter such waters, is prohibited.

7.9 WILDLIFE PROTECTION

Contractor shall ensure that no knives, firearms, dogs or pets are brought onto the right-of-way by anyone involved in the performance of the work and that no harassment or depredation of any wildlife species or livestock takes place.

7.10 FIRE PREVENTION AND SUPPRESSION

Contractor shall ensure that he has sufficient equipment and personnel at all times, to permit the suppression of any accidental fire originating from his construction activities.



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7.11 SOIL EROSION

Soil erosion is a major problem contributing to environmental degradation and pollution to the waterways. Contractor shall be responsible for the following mitigation measures as a minimum:

Contractor shall implement all appropriate measures to mitigate any impact due to erosion or sedimentation.

Contractor shall prepare erosion and sediment control plans for major and/or sensitive water crossing locations. The plans shall outline specific measures to be incorporated prior to, during, and after construction. The plans shall predict downstream sediment transport for wet crossing and overland sediment transport in an effort to better define impacts associated with construction and erosion control and other mitigation measures.

Determination and installation of appropriate corrosion control devices during and after construction if necessary.

Protection of soil quality is a priority during construction. The Contractor shall avoid mixing soils. The topsoil shall be stripped to the defined depth, stored separately from the subsoil and replaced with a minimum of handling.

7.12 PUBLIC HEALTH

Contractor shall implement the following minimum requirements:

Contractor shall provide first aid units at all construction sites.

Contractor shall provide medical coverage for the project.

Contractor shall establish appropriate working conditions at the construction sites.

Contractor shall provide the proper health and environmental sanitation improvement in workers’ communities, maintain the workers’ health examination, illnesses and accident records periodically, and submit these to PTT upon request.

Contractor shall provide the necessary safety programs, training and equipment required for the project. All personnel shall be trained on the usage of safety equipment.

Contractor shall spray water on uncovered ground to minimize dust.

Contractor shall provide traffic signs showing the location of the construction areas and install warning signals in dangerous areas and areas not visible during the night-time.



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8.0 QUALITY ASSURANCE AND QUALITY CONTROL

Contractor shall establish for this project a documented Quality Assurance System, which complies with the principles of ISO 9001 and the project requirements as defined in the contract. The Project Quality Assurance / Management System shall be divided in three levels:

Level 1 - Project Quality Assurance Manual (PQM)

Level 2 - Project Procedures (PP)

Level 3 - Quality Control Plans (QCP)

The PQM describes the Quality System Requirements, the Organization and Resources, Planning and Audits, Procedures and Processes for the implementing of quality management, for each of the following management groups:

Project Management

Engineering

Procurement

Construction

Pre-Commissioning including FAT/SAT

Commissioning/Start-up

The Project procedures describe specific practices, resources and sequence of activities relevant to the particular service, product or contract. They are divided into the following groups:

General Procedures

Engineering Procedures

Procurement Procedures

Construction Procedures

Pre-Commissioning including FAT/SAT Procedure

Commissioning/Start-up Procedure

The QCP shall describe the requirements of testing, inspection and monitoring of processes and activities in order to eliminate unsatisfactory performance at relevant stages. QCP´s determine the required scope of quality records necessary to demonstrate conformance to specified requirements.

The verification that all established procedures, quality plans and/or work instructions are being effectively implemented will be performed by series of planned audits and reviews by Contractor and PTT.



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QA/QC Organization

The project QA/QC organization shall be established and based upon the use of qualified staff, experienced in the required disciplines. Sufficient numbers of qualified staff shall be provided to constantly monitor and control all quality aspects of the Work.

The Project Manager is responsible for the overall project execution, and has the authority to organize and implement all activities necessary to achieve efficient completion of contract deliverables.

The Project QA/QC Manager is responsible for ensuring that requirements of ISO 9001 and the Quality Assurance Manual are effectively implemented.

Discipline Managers, Lead Engineers and all project personnel are responsible for the quality within their defined areas of activity.

The reporting relationships between all members of the Project team shall be shown in the respective organization charts and the particular responsibilities of the key personnel shall be detailed in the Job Descriptions.

Quality Control

Contractor’s QA/QC activities shall follow approved standard procedures. Contractor shall send qualified inspectors to sub-vendors, fabricators or sub-suppliers at frequent intervals, to shall ensure that:

Supply of material and equipment will follow Contractor’s specifications.

Certificates and test reports will follow the requirements as stated in the agreed Equipment and Construction ITP’s.

Materials and equipment will be marked with the project identification code.

Required tests will be attended by Contractor and PTT’s representatives shall be invited for witness tests.

Contractor shall provide an audit and inspection plan to PTT for approval.

Contractor in accordance with the audit and inspection plan shall notify PTT of upcoming audits and inspections with 3 week notice. PTT will advise if he will participate in the audit and inspection activity.

Contractor shall incorporate Quality Control to all works. Contractor shall implement change management, which include;

Maintain Red Line Markup for any change in documentation and drawing

As-built drawing, documentation and final report shall incorporate all changes onsite during construction.



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9.0 PROCUREMENT AND SUBCONTRACTS


The Contractor shall furnish at its sole expense all materials, equipment, consumables, spare parts, services and procurement services necessary to perform the Work other than provision of those materials specifically listed as PTT supplied. Contractor shall supply unpriced copies of all purchase orders and Subcontractors to PTT.

9.2 GENERAL

Contractor shall provide dedicated procurement and subcontract managers assigned to the project for the duration of the Work. These managers shall be located in Contractor’s project office in Thailand.

Contractor shall provide and update on a regular basis a detailed subcontract and procurement register and report giving the detailed status of all purchase orders and subcontracts.

Contractor shall provide a detailed procurement and subcontract’s organization, personnel, procurement plans, and procedures that are dedicated to the project. The procurement plans shall include preparation of materials requisitions, bidding procedures, technical bid evaluation (TBE), approval of vendors and subcontractors, management and control of vendor documentation, shop expediting and inspection and engagement of an Independent third party inspection agency who shall certify procured materials and equipment in accordance with ISO EN 10204, 3.2 requirements. The third party inspection agency shall be subjected to PTT approval. All key materials, equipment, and services shall be procured only from vendors or subcontractors that are included on PTTs approved equipment and material list (GTM AEML). PTT reserves the right to reject any materials or equipment procured from vendors that are not on PTTs approved equipment and material list.

Contractor shall set up a systematic review system to control issue, review and approve of all vendor documentation. This system shall include time allowances for PTT to review and approve all vendor documentation. Purchase of equipment and material with or without the permission to proceed of PTT will not relieve the Contractor’s responsibility of liability from obligations under this Contract.

Purchase of equipment or other material within Thailand is encouraged.

All procured equipment shall only be purchased from Vendor(s) who have guaranteed after sales ‘fast track’ service and spares support capability.

System package such as Telecommunication, Instrumentation and Metering system shall be inspected, fabricated/integrated, implemented and tested with PTT representative in Thailand.



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After sale service agents within Thailand are encouraged.

Due to the critical schedule for procurement of long lead items, Contractor’s procurement manager shall be located in Thailand during the detailed design phase of the work to allow rapid and efficient co-ordination between his procurement and detailed engineering organization and co-ordination and approvals by PTT.

The Contractor shall obtain approval to proceed from the PTT prior to the purchase of material and equipment or award of any subcontract.

Contractor shall obtain written approval for any technical deviation of vendor equipment, if Contractor considers that such technical information deviates from PTT’s technical requirement under the Contract (such as specification, drawing, data sheet, etc.) before proceeding with the works. Any technical deviation with or without the permission to proceed of PTT will not relieve the Contractor’s responsibility of liability from obligations under this Contract.

The PTT reserves the right to have Contractor order certain items on behalf of the PTT. Contractor shall provide costs and procedures for such adjustments to the PTT for approval to proceed.

Contractor shall receive, load, transport and warehouse all materials and equipment in a manner to prevent damage and in accordance with the vendor specified requirements.

Contractor shall at all times keep and maintain detailed records of the materials and equipment that have been purchased, received, stored and issued for construction and shall make such records available to the PTT immediately upon request.

Contractor shall be responsible for all duties and taxes on materials purchased by Contractor unless arrangements are made to import permanent materials under PTT’s BOI exemptions. For all permanent materials imported under BOI exemption, Contractor shall provide detailed records tracking all such material to its final disposition.

9.3 PTT PROVIDED MATERIAL

PTT will provide the materials listed and at the locations specified in the General Conditions. The Contractor may use some of this material for welding procedure and welder qualification testing and some for production of induction bends.

Contractor shall provide for storage of PTT provided line pipe as per Work Scope Storage yards.

The Contractor shall apply concrete coating to Line Pipe as required and subject to PTT approval.



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Any additional material that the Contractor requires to undertake and complete the Work shall be purchased and supplied at Contractor’s expense.

9.4 PURCHASE ORDERS

Contractor shall prepare a long lead material list, which shall be submitted to the PTT for review in accordance with the schedule requirements. Long lead materials are those with a delivery schedule greater than 6 (six) months. The long lead material list shall include durations to meet the scheduled need and completion dates of the project.

PTT shall review requisitions, including all drawings, specifications, data sheets, and/or calculations, for major non-bulk materials prior to issuing the requisitions to bidders.

Vendor data requirements and testing and inspection requirements, including ISO EN 10204, 3.2 inspection requirements of an Independent Third Party Inspection Agency shall be included in the purchase requisition.

Contractor shall advise the PTT of the progress of material procurement and provide status of all the purchase orders issued, including those scheduled to be prepared in the coming month.

For non-bulk materials, the purchase order copies with vendor data shall be included in the data books as "as-built" information.

Contractor shall be responsible for expediting and inspecting vendor’s work. Copies of expediting and inspection reports shall be forwarded to the PTT for information by monthly basis. The PTT shall have the right to inspect the manufacturing shops, fabrication yards and mills and the work being done. If any problems arise pertaining to quality or the delivery schedule of any such material or equipment, the PTT shall be informed and corrective actions shall be taken immediately.

9.5 EXPEDITING

Contractor shall furnish to the PTT no later than 3 (three) weeks after commitment, a complete schedule showing major elements of each key subcontract or purchase order. Major elements include, but are not limited to, inspection, acquisition of materials, coating application, curing, testing, and shipping, as applicable as well as "notification points" relative to inspection in this same schedule. In addition, the Contractor shall furnish a progress report to the PTT every week in sufficient details to allow a realistic evaluation of scheduled events towards completion of the subcontract or purchase order.



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9.6 CONTRACTOR QUALITY SURVEILLANCE OF PROCURED MATERIAL

The Contractor shall perform the following quality surveillance for Procured Material, including, but not limited to, pipe, pipe coating, fittings, valves, vessels, instrumentation, and communication equipment.

9.6.1 General

Quality surveillance consists of inspection and acceptance testing. The level of acceptance testing and inspection is directly related to the size and complexity of a specific Procured Material and will be stated in detailed specifications. Testing shall comply with all applicable standards and codes covering the Procured Material(s) being tested.

The Contractor shall have the responsibility of furnishing the PTT with all specified certifications on materials and shop test data including final FATs verifying that the specifications are being met.

An inspection and testing plan shall be prepared by the Contractor in accordance with the tests required by the detailed specifications or data sheets on all Procured Materials.

9.6.2 Testing

All tests shall be conducted as called for in the specifications.

Hydrostatic tests and FATs may be witnessed by the PTT.

Test procedures shall be submitted to the PTT for written approval to proceed 21 working days prior to beginning of testing. The Contractor shall give a minimum 14 day written notice prior to beginning any testing so that the PTT representative can arrange to be present. Failure to give such notice shall be grounds for rejection of test results. As many tests, as possible, as determined by the PTT, shall be arranged together.

The Contractor shall provide air and electrical power, as required, to monitor and record the test operation.

Tools, instruments, and equipment required for tests and inspections shall be furnished by the Contractor.

Tools and test instruments shall be acceptable to the PTT. If required, instruments shall be calibrated at the Contractor’s expense. The Contractor shall ensure that such instruments are regularly recalibrated against approved standards. Particulars of the calibrations shall be given with test certificates.

The Contractor shall maintain a record of shop test data for at least 24 months after the date of shipment of the Procured Material. Certified copies of test data shall be submitted to the PTT for review prior to shipment.



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The Contractor shall be responsible for recording test results and for other documentation of all tests.

Deficiencies found as a result of inspections and testing shall be repaired and retested using the same method by which the deficiencies were found. The Contractor shall be responsible for immediately repairing or rectifying the defective item or procedure and retesting the item or procedure at no cost to the PTT.

Acceptance of shop or yard tests does not constitute a waiver of requirements to meet field tests under the specified operating conditions, nor does inspection relieve the Contractor of his responsibilities as outlined in the Contract.

Dismantling for inspection shall be performed if evidence of malfunctioning during testing is noted.

Unless approved otherwise by PTT, all shop or yard tests shall be done on the completely assembled product, e.g. valve and valve actuator shall be tested together, and not on individual components.

9.6.3 Quality Conformance Inspections

The Contractor shall appoint an inspector who will verify that the Procured Material is in accordance with the specification. Particular emphasis shall be given to inspection that ensures satisfactory performance in areas, such as workmanship, that cannot be treated completely by drawings, specifications, standards or codes.

Wherever ISO EN 10204, 3.2 certification is required in the product specification or in the Contract, the Inspector shall engage an independent third party inspector to provide this certificate.

The inspector designated by the PTT shall have free entry at all times, while work on this contract is being performed, to all parts of manufacturer’s premises, which involve the manufacture, inspection or testing of a Procured Material. The Contractor shall afford the inspector, free of cost, all necessary and reasonable use of facilities in determining that the Procured Material is being furnished in accordance with specifications.

The Contractor shall notify any subcontractors of the inspection requirements and obtain subcontractor’s agreement.

The inspection shall not relieve the Contractor of complying with any and all expressed or implied specifications or of Contractor’s guarantee that the Procured Material(s) shall perform satisfactorily under operating conditions.

Contractor shall not initiate changes required by inspectors until such changes are accepted in writing by the PTT.

The PTT shall have the authority to stop work and require repairs or alterations if material or workmanship does not meet the specification requirements.



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All such repairs shall be at the sole cost and expense of the Contractor and no claim against the PTT will be entertained.

Contractor shall provide office and communication facilities to the PTT’s inspectors, at no additional cost, at vendor shops where PTT inspection is required. Facilities shall include desks, chairs, lighting, telephones, office supplies, and access to photocopier and fax machines. Facilities shall be equivalent to those provided to Contractor’s chief inspector.

9.6.4 Final Inspection of Procured Material

Prior to the final inspection of Procured Material, all slag, loose scale, dirt, grit, weld spatter, paint, oil, test medium, and other foreign matter shall be removed from the inside and outside of the procured material by Contractor.

9.6.5 Warranty and Guarantee

Contractor shall be responsible for subcontractor’s or manufacturer’s warranty and guarantee for design, workmanship, material and installation.

The approval to proceed with work and release of items for shipment shall in no way relieve Contractor of his responsibility for carrying out the provisions of the specifications in the Contract and shall not be construed as an acceptance of either less than specified in the design process, performance, defective materials, or poor workmanship.

9.7 THIRD PARTY NDT

The Contractor shall provide a third party sub-contractor, which is registered to DOEB to perform non-destructive testing of pipeline and facility field welds. The sub-contractor shall be subjected to the PTT’s approval.

9.8 TEMPORARY FACILITIES PROVIDED TO PTT AND CONSULTANT

Contractor shall provide all utilities, office space, and storage and warehousing, lay-down areas, security, personnel transportation and any other temporary facilities required for PTT’s and Consultant’s attendance at Contractor’s operations.

During the detailed engineering and design review, office space, stationery, secretarial services, photocopying / reproduction, internet services, computers and printers, facsimile and telephone facilities shall be provided in Contractor’s Thailand office for 5 people. Office space shall be equal to that provided for Contractor’s senior staff personnel.

Service fees (i.e. monthly communication and electric services) for facilities shall be the responsibility of the Contractor. Parking facilities for PTT personnel shall be



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provided by Contractor adjacent to the office(s) location(s). Contractor shall submit site office location and number, layout, material and equipment to PTT for approval.

Main site office and secondary site office(s) shall be at the same location as Contractor’s offices with 24 hour security and secure parking with shade for PTT/Consultant employees. Contractor shall provide for daily maid service for Good Manufacturing Practice (GMP) certified bottled drinking water, power, water, and trash service. The offices for PTT and Consultant shall have separate rest rooms from the ones for Contractor for both Men and Women.

Contractor shall provide the following Services, Offices and Equipment for the Main field office and the secondary field office for PTT/Consultant as soon as Contractor is established on site or 4 months after Award of Contract, whichever date is the sooner:

No. Services, Offices and Equipment Main Site Office

Secondary Site Office

1 Fully furnished (desks, chairs, tables, file cabinets, stationery, etc., split-type air conditioned, leased office space in an existing, modern office park/building or approved equivalent for PTT/Consultant representatives)

40 PAX 20 PAX

2 PTT’s meeting room, separate from other meeting rooms

1 for 40 people 1 for 20 people

3 Document control center and secretary 2 PAX 1 PAX

4 International telephone lines 1 1

5 Fax machine with separate fax line 1 1

6 Computer Servers 1 + 1 back-up -

7 100 Mbps High Speed internet permanent connections, i.e. leased line, ADSL (SDSL) or ISDN

1 + 1 back-up with load sharing

1

8 Wireless LAN covering all office area 1 1

9 Personal computers (with Intel Core i7 3.0 GHz or better, minimum 16 GB RAM, 2 TB hard disk, the Latest edition for Windows Pro or, MS Office Pro, Adobe Acrobat Pro, Virus Scan software, DVD-RW), 21” monitors flat LED monitor with UPS

10 (with full license)

10 (with full license)



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No. Services, Offices and Equipment Main Site Office

Secondary Site Office

10 Additional 24" wide screen PC monitor (Dell or equivalent)

10 -

11 AutoCAD the latest version license for sole use of PTT / Consultant

5 -

12 Color Laser Standing Copy Machine A4/A3 size (60 PPM) (collator and automatic feeder) with paper supply, Printer, Fax and Scanner included.

2 2

13 Full HD Portable Projector with screen 1 1

14 Digital Camera with full accessary (Wi-Fi, GPS, weather proof) (Sony or equivalent)

5 -

15 Fully Automatic Coffee/Espresso Machine with Supplies

2 1

16 Refrigerator 12 Cu. ft. with Supplies (Bottled water treated by RO, UV, O3)

2 1

17 Microwave 30 L 2 1

18 Electric Water Pot 2 1

19 4-doors, 4 x 4 pick-up truck, fully insured, fueled with maintenance service for PTT

3 -

20 Paper Shredder Machine 1 1

21 Drone, each set consists of;

- Phantom 4 or latest model

- Additional Battery pack 3 sets with suitable charger, hard case bag 2 sets

- iPad Mini the latest model for monitoring the drone

2 sets -

In addition to the field offices noted above, Contractor shall provide similarly equipped and serviced field or portable office trailers at other main work sites to be determined during the course of the work. These shall accommodate additional PTT / Consultant representatives.



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Contractor shall provide the site base new 4 x 4 pick-up trucks for use by site base inspectors from PTT and Consultant for use in inspecting the on-going works from the site offices. These vehicles shall be fully insured, fuelled up to 500 liters/car/month with maintenance service and shall be made available during all working hours at the site up to the Completion of Commissioning. Each vehicle shall have anti-lock braking system (ABS), driver and passenger side airbags fitted as standard and each shall carry a first aid kit, fire extinguisher, flash light and safety warning triangle.

Contractor shall provide on-call Van with driver for PTT use by site base in full service.

Contractor shall provide free access and usage of site pantries to PTT and Consultant personnel.

The Contractor shall provide first aid supplies and firefighting equipment as required by Thai governmental, provincial, state, and local codes. The Contractor shall provide personnel protection equipment followed by CSA, ANSI standard or equivalent (e.g., helmet, gloves, safety shoes, raincoat, reflective safety vests, etc.) for PTT and representatives.

9.9 SPARE PARTS

Contractor shall supply as part of his lump sum price all commissioning spares and consumables. In addition to supplying the commissioning spare parts as required in the narrative specifications requirement and manufacture recommendations, the Contractor shall include in his lump sum price in supplying the following:

One (1) spare 42” ANSI 600# Fully Welded Body with Weld Ends Main Line Ball Valve with actuator

Contractor shall supply as part of cost reimbursable basis a two year supply of operating spares for mechanical, electrical and instrumentation equipment in accordance with the PTT’s requirements and manufacturers’ recommendations. Contractor shall submit at an early stage his operating spares list for PTT approval. Operating spares shall be delivered directly to PTT and shall not be used for commissioning or start up purposes.

Contractor shall also provide shipping containers for all operating spare parts storage.



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10.0 WORK SPACE ACQUISITION


The Contractor shall acquire all temporary work space, not specifically provided by the PTT, as required to survey, install, and commission the facilities.

10.2 GENERAL

Along the pipeline route, the Contractor shall be responsible for any additional working area in addition to the designated permanent pipeline ROW.

Additional temporary work space acquisition may be required at, but not limited to:

Road, railroad, and waterway crossings

HDD’s and bore locations

Equipment and material lay-down areas

Access to pipeline ROW

Block valve and all other station sites

Offices/Camps

The Contractor shall be responsible for ensuring that all permanent ROW and temporary work space have been obtained prior to beginning construction. Contractor shall provide proof of temporary work space agreements with landowners to the PTT prior to commencing work.

Contractor shall not construe portions of the right-of-way made available by the PTT as access to and from the right-of-way.

There may be cases where the actual workspace may be less than what is shown on the ROW typical drawings. It should be noted that in some instances there will be no temporary workspace available for the Contractor.

10.3 PLANNING AND NOTIFICATION

Contractor shall submit with its contract execution schedule a plan outlining Contractor’s planned construction progression for stations, bored crossings, HDD’s and along the entire pipeline right-of-way. This plan shall be time specific and presented in a time-line diagram style. The plan shall detail planned construction progression by reference to kilometer posts and by number of crews / pipeline spreads for each main activity.



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The plan shall clearly highlight seasonal constrains (e.g. flood or rainy seasons, wildlife) and other construction restrictions, e.g. caused by archaeological site or Third Parties.

Contractor shall provide to the PTT at least 60 (sixty) days written notice of its need to have specific portions of the route made available for the purposes of mobilizing personnel and equipment for installing the pipeline or related facilities. Such notices shall be submitted to the PTT on a weekly basis during the execution of the contract. Contractor’s “need to have specific portions of the route made available” shall be consistent with the planned progression as described in the approved Execution Plan and Schedule.

For portions of the right-of-way that are on privately owned land, PTT will advise Contractor at least 30 (thirty) days in advance of Contractor’s planned date of entry onto such land as to whether PTT can make such portions of the right-of-way available to Contractor.

Alternatively, for portions of the right-of-way that are on privately owned land that PTT has not procured in advance from the private landowners, PTT may direct the Contractor at least 30 (thirty) days in advance of Contractor’s planned date of entry onto such land to acquire the “right to construct” on such land. Where PTT directs Contractor to acquire such a “right to construct”, the associated costs incurred by Contractor shall be reimbursed by PTT.

In the event:

i. PTT will not make available to the Contractor the portions of ROW on the planned dates;

ii. Contractor is required to obtain the "right to construct".

The Parties shall meet to mutually assess the impact to Contractor and PTT.

After Contract award, the PTT shall provide Contractor with documents identifying affected landowners along the route. The PTT will notify affected landowners of impending construction 6 (six) months prior to start of construction.

Contractor must, prior to construction, contact all landowners identified by the PTT on the ROW to ensure that each landowner is willing to allow construction to proceed in accordance with the Contractor’s execution plan. If any landowner appears likely to attempt to obstruct construction, Contractor shall notify the PTT at least four weeks prior to the commencement of construction on the affected land in order that the appropriate governmental agencies may be on hand to intervene if necessary.

Contractor, prior to start of construction activities, shall also obtain approval from PTT or Lessees of buildings / structures that have been erected on the pipeline ROW.



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10.4 PTT Provided Workspace

For pipeline sections located in private owned lands or EGAT ROW, PTT will provide the permanent pipeline ROW as shown on the alignment sheets and other detailed Drawings.

PTT is currently in the process of assessing the value of the land in order to compensate the landowners. It is anticipated that the majority of landowners will have agreed to the proposed compensation prior to construction; however, this process may not be completed at the time construction commencement.

For pipeline sections located inside other authority ROW such as Highway, Roads, Waterway or Klong (such as DOH, DRR, RID, MD), the pipeline shall be installed at the location specified in the drawings, such as 5 meters from the edge of ROW. Contractor shall be responsible for working space, which is subjected to the discussion, agreement and permission from those relevant authorities. Any cost incurred from removal, relocation and reinstatement of obstructions (such as trees, shelters, traffic sign/post, and electric poles) shall be Contractor’s responsibilities.

Contractor shall provide a construction plan for PTT approval to demonstrate Contractor schedule for work space requirement. Contractor shall work in sequence to minimize time required for each work space. PTT will release further land for Contractor access; only after the Contractor demonstrates that he is making satisfactory progress toward complete reinstatement of the previous land released. The maximum extent of work space provided to the Contractor at any one time shall be 20 (twenty) km only.

10.5 SITE OBSTRUCTIONS

Contractor shall be responsible for the removal of all obstructions from the right-of-way. Contractor, at his own cost, shall be responsible for making all arrangements and for gaining any approvals necessary from local and other Authorities, to remove such obstructions, and for the relocation of any such obstructions, if required.

10.6 INTERFACE WITH OTHER PARTIES

The Contractor shall be responsible for working directly with other parties throughout the execution of this project. This shall include, as a minimum, the following;



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1. PTT OCS#4 Operations Group

2. PTT Existing RA6 Mixing Station Operations Group

3. PTT Chonburi Operation Centre

4. EGAT (Electricity Generating Authority of Thailand)

5. PEA (Provincial Electric Authority)

6. MEA (Metropolitan Electrical Authority)

7. PTT Wang Noi Metering Station Operations Group

8. PTT FTP GDF Operations Group

9. DOH (Department of Highways)

10. DRR (Department of Rural Roads)

11. RID (Royal Irrigation Department)

12. MD (Marine Department)

13. Map Ta Phut Industrial Estate

14. PTT / Third party pipeline operators

15. PAO/SAO

16. WNMR Wang Noi Metering

17. Other EPC Contractors (e.g. Wang Noi Compressor Station, RA#6-Ratchaburi Pipeline, another phase of 5TP EPC)

Interface functions shall include exchange and review of design data during the engineering, construction and commissioning phase to ensure compatibility of equipment and systems being provided by the Contractor. The Contractor shall ensure that information is provided directly to other parties in a timely manner to allow the other parties to perform their respective tasks and responsibilities without undue delays in schedule. The Contractor shall perform work to ensure no interruption or delay causing to each other EPC.



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11.0 CONSTRUCTION


The Contractor shall construct and install the pipeline and facilities in accordance with provisions of this section and other Contract Documents.

11.2 CONSTRUCTION MANAGEMENT

Provide and implement construction plans.

Provide and implement construction schedules.

Provide and implement safety programs and environmental plans for all construction activities. Detailed programs shall be submitted to the PTT for approval to proceed in accordance with the schedule requirements. Safety programs shall in particular include SimOps (Simultaneous Operation) plans in areas where operational facilities are in close vicinity to the new pipeline.

Provide and implement the Management of Change (MOC) plans for all construction activities. Detailed programs shall be submitted to the PTT for approval to proceed in accordance with PTT Operation requirements. MOC shall in particular include document package at each stage of project such as Construction, Commissioning and Final document. Pre-Startup Safety Review (PSSR) shall be conducted by Contractor prior to MC in order to apply gas-in permit. Permit of gas-in and commissioning (gas-in) is part of MOC as well as DOEB.

Establish and implement a drug and alcohol abuse program according to the Contract documents.

Provide furnished office space and other services for PTT personnel as required.

Provide third-party non-destructive examination of one hundred percent of all pipeline butt welds completed by Contractor.

Provide security for material and equipment at the job sites.

Develop and implement Quality Control and Quality Assurance Procedures for the Work. Procedures shall be submitted to the PTT for approval to proceed in accordance with 30 days of Contract award.

Implement Material Handling and Control Program. Program shall include material traceability from fabrication to installation.

Secure and pay for all required construction permits governmental fees and inspections necessary for proper execution and completion of the Works.

Provide and implement construction supervision system including 3 special crews with full HD streaming camera, smartphone with unlimited 4G data connection capable to operate 24 hours during construction period, control room



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with 24 hour operator equipped with monitor, playback recording server, telecommunication between construction site and control room.

Perform and maintain documentary records of Construction Methods used in each type of construction area. The record shall include full details of all types of construction and land use, such as at rocky areas, hilly areas, agricultural areas, rivers, ditches, ponds, forests, etc. The record shall be produced and maintained by a professional consultancy that is experienced in such work.

11.3 CIVIL AND MECHANICAL

Civil and Mechanical Installation and Construction Work shall include but not be limited to the following activities:

Install pipelines and Tie-ins to existing systems as required.

Install Fifth Transmission Pipeline Block Valve Stations and Facility stations, including vent and silencer systems.

Install utility systems and associated tie-ins to existing utilities as required.

Install fire water system and associated tie-ins as required, including firewater system isolation valves and associated below grade concrete isolation valve access chambers with HDPE access covers, at WNMR.

Install portable water systems at all stations as required.

Install foul and storm water drainage systems at all Stations Facilities as required.

Install access roads to 5TP stations facilities.

Review coating contractor and pipe supplier Specifications and procedures.

Receive, inspect and issue the acceptance report on delivery of coated and uncoated pipe from a location within Map Ta Phut, Laem Chabang or Sattahip, Thailand.

Storage and handling of PTT-furnished Line Pipe at stock pile facilities, locations to be proposed by Contractor and subject to PTT approval.

Clear, grade and prepare right-of-way, including rock removal and construction of access roads required to move equipment, material and personnel to Work areas.

Provide and install temporary exclusion fencing along the right-of-way for environmentally restricted areas.

Receive, store and provide security for all equipment prior to installation on site.

Separate topsoil as required.

Develop and implement blasting procedures, as required.

Provide all explosives, permits, transport, handling and storage of explosives, as required.



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Excavate trenches, including rock excavation.

Dispose of rock and other debris, waste materials at government-accepted sites.

Receive, load as required, haul, unload, properly store and string pipe supplied by PTT and other Contractor supplied materials.

Survey, as required, to re-establish and maintain the pipelines alignment centerline as defined by the Project Drawings; to locate and identify all above and below ground obstructions; and to support construction activities in accordance with the Specifications.

Expose existing pipelines as necessary to verify location.

Field bend pipe to fit ditch.

Transport pipe to job site. The operation includes Contractor provision of operated cranes, operated trucks with trailers and labor to load the pipe and transport to the job Site or storage facility provided by the Contractor.

Apply shop coating and painting for aboveground instrument, valves, piping/pipeline equipment and fittings.

Apply shop coating and wrapping for underground valves and fittings.

Furnish, deliver and install main pipeline valves and fittings including coating and wrapping.

Develop and qualify welding procedures and qualify welders in accordance with API Standard 1104.

Weld the Line Pipe utilizing qualified processes.

Backweld and/or back bevel, transition bevel, heavy wall pipes, valves, fittings, etc. as required.

Perform AUT on all girth welds and provide documentation/records to PTT. Contractor must grind longitudinal weld seems to accommodate AUT process where AUT is the approved NDE method.

Provide and apply specified coatings to field joints, buried valves, fittings, piping and other bare metal surfaces and make necessary repairs to coating damage in accordance with the Specifications.

Provide holiday detection inspection of factory applied coatings and of Contractor applied field joint coatings and coatings on buried valves, fittings, piping, etc.

Provide material and reinstate trenches in accordance with Specifications.

Furnish and place material for bedding and padding of pipe in the ditch as required by the Construction Specifications and Drawings.

Lower-in the pipeline.

Provide special constructions for crossing existing pipelines, power cables, transmission lines and other foreign utilities.



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Provide and install PTT accepted rock shield or suitable mechanical protection coating where padding materials are not readily available.

Perform HDD and bored crossings as shown on the alignment sheets.

Install highway and railroad crossings, including concrete slab over pipelines as shown on the alignment sheets.

Install road crossing and required temporary traffic bypasses.

Install drainage/khlong crossings.

Drain ponds as required and coordinate draining activities with the landowners.

Design for approval to proceed, manufacture and install screw anchors and or rock anchors as required.

Make pipeline hot-tap tie-ins where necessary.

Make tie-ins at the existing facilities, coordinating with plant operator as required.

Grade and prepare Site for pipeline facilities.

Fabricate hydrostatic test headers, as required.

Hydrostatically test the test headers and related fabrications prior to use.

Gauge and clean completed test sections following lowering-in operations and prior to final hydrostatic testing.

Provide all hydrostatic test materials (including chemicals, if required) and equipment.

Provide a hydrostatic test plan for hydrostatic testing the pipelines and related facilities.

Hydrostatically pressure test, dewater and dry (including provision of drying agents) the pipeline and facilities.

Undertake additional hydrostatic pressure test for spare ‘emergency repair’ pipe joints; 5 lengths of each pipe diameter for 5TP to be tested and handed-over to PTT operation.

Provide pipeline construction progress measurements at 100 meter intervals.

Backfill and construct settlement berms over the pipeline in accordance with the Specifications.

Provide all necessary supporting designs documents and obtain necessary approval to proceed from statutory authorities.

Provide and place concrete foundations and supports.

Provide materials as required and install alignment and aerial markers and warning signs.

Provide and install PTT acceptable coating for non-production field joints, including tie-in welds and concrete coated pipe welds.



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Return and unload surplus pipe, PTT furnished materials and spare parts to a location specified by PTT including preparation of storage area.

Collect As-Built data to accurately document the completed installation of pipeline and related facilities and provide as-built Drawings.

Apply field coating and painting aboveground facilities in accordance with the Specifications.

Insulate hot pipe and equipment as shown on the Drawings and in accordance with the Specifications.

Perform clean-up, final grading, erosion control and restoration.

Obtain landowner’s release after restoration. The list shall indicate KP no. with details such as land deed, landowner and relevant permit details.

Provide and install permanent fencing and gates as per Project Drawings.

Clean up and restore material storage and soil stockpile sites.

Provide testing, Pre-Commissioning, Commissioning and start-up services.

Retain weld x-ray films in safe storage location for turnover to PTT at the end of the project.

Clearing, grubbing, stripping, excavation and disposal of waste materials.

Improvement of existing filled areas as required for construction.

Stock piling of trees and shrubs at designated areas.

Grading, filling and compacting.

Construction of ditches, temporary drains and culverts.

Surveying including setting and maintaining all line, grade and slope stakes required to accomplish the Work and maintaining reference points.

Perform finish grading and surfacing within all stations.

Install external lighting within Project facility areas.

Install permanent roads within 5TP Project facility areas.

Install SCADA, control room and guardhouse buildings including building services decoration and furnishing.

Install portable water supply system at manned Block Valve Stations and facilities including well drilling, well shaft material, submersible pump, storage tanks and supports, filters, plumbing and fixtures, as necessary.

Furnish and install a complete air conditioning and ventilation (HVAC) system for each new building, including fabricating, testing, adjusting and final balancing of all HVAC equipment and components for each new station control building.



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Furnish and install a complete building electrical system, lightning protection system, grounding system, fire alarm/detection/protection system and communication system for each new Station Control Building.

Provide and install manual firefighting equipment at all stations according to NFPA requirements.

The Contractor is required to prepare detailed tie-in procedures to minimize interference with the operation of the existing facilities. Contractor shall identify the tie-ins in the following categories:

- Partial system shutdown tie-ins

- Non-shutdown tie-ins

- Tie-ins requiring hot work

- Tie-ins not requiring hot work

The procedure and schedule for the tie-ins shall be submitted to PTT/Consultant for approval. System shutdown tie-ins requiring stoppage of gas transmission to onshore pipelines are not allowed. Partial system shutdown tie-ins shall be requested and submitted to PTT by Contractor as early as possible in order to provide adequate planning time for any necessary adjustment to PTT operations schedule. The Contractor shall perform work to ensure no interruption or delay causing to each other EPC.

11.4 SCADA, INSTRUMENTATION AND COMMUNICATIONS

SCADA, Instrument and Communications Installation and Construction Work shall include but not be limited to the following activities:

Interface to third party control systems at; LNG Terminal, OCS#4, existing WNMR and Bang Pakong Station, existing RA6 existing Mixing Station.

Interface to existing PTT pipeline SCADA system at Chonburi OC and backup control center.

Install field instruments, junction boxes and terminations, including safety barriers and surge suppressors.

Install cable system and wiring.

Perform continuity checks of instrument circuits.

Install PLC’s and/or RTU’s at block valve stations, and also specified instrumentation equipment.

Terminate and test instrument loops and other intelligent end devices, such as flow computers and gas chromatographs.



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Install Fire and Gas detection system at all stations and fire suppression system for facilities stations.

Mount and commission valve actuators.

Install communication towers, UHF antennas, repeaters, base stations and console.

Install communication system at each guardhouse/control building.

Install IP phone system equipment as required.

Install two HDPE ducts along the pipeline ROW with associated manholes including joining and testing of the HDPE ducts for structural integrity prior to cable installation.

Installation of fiber optic cable in one of the HDPE duct including fusion splicing (every cores) and OTDR joint testing.

Install fiber optic transmission equipment and connections for data and voice communication lines.

Modify and extend existing SCADA database, application programs and graphical user interface at Chonburi OC and the Back Up Station at Pan Tong.

Modify and extend existing DCS database and graphic user interfaces.

Install new control system (DCS) and safety system (SIS) for facilities stations.

At HDD sites, install a suitably designed casing pipe to facilitate the installation of two FOC HDPE ducts. Refer to Typical installation of fiber optic cable duct.

Install precast concrete FOC manholes at approved locations shown on the alignment sheets.

11.5 CP and AC Mitigation

Perform stray DC interference testing and provide both temporary and permanent mitigations.

Install temporary CP during construction.

Install test lead stations and bond to existing pipeline systems during construction.

Install all cathodic protection and AC mitigation.

Install insulating joints and flanges.

Install CP on any buried steel piping within station facilities.

Install CP current source with Online Remote Operation Current Interrupter System (OROCIS) and remote CP monitoring interface with PTT CP application via the pipeline SCADA system or PTT Net.



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Disconnect all temporary CP prior to performing CP/AC mitigation pre-commissioning and commissioning tasks.

Perform a pre-commissioning check out of equipment.

Perform a baseline CP potential survey.

Perform commissioning and energizing/adjustment of CP systems and CP/AC mitigation potential surveys.

Perform post commissioning CP/AC mitigation survey and checks.

Perform special testing, adjustment and pipeline CP/AC mitigation survey following bond connection with existing pipelines or installation of drain cable and prepare documentation.

Perform coating test of all HDD and bores before tie-in to other pipeline sections.

CIPS and DCVG shall be conducted to obtain baseline data of the Cathodic Protection System. Both surveys shall be carried out by an experienced Subcontractor.

Repair coating defects identified by DCVG survey and improve CP level at deficient locations indicated by CIPS and in close coordination with PTT Operations.

11.6 ELECTRICAL

Electrical Installation and Construction Work shall include but not be limited to the following activities:

Install, connect, check out and test all above grade grounding connections, ground wires, ground rods and ground wells.

Install, connect and check out lighting systems complete with lighting panel boards, fixtures, photocells, ballasts, lamps, outlets, switches, wiring devices, contactors, hangers, conduit and wire.

Install underground duct banks, wire gutter and cable trenches/trays in manholes between buildings, yard and control room as shown on the Drawings.

Install, connect, check out and test raceways and wiring systems including conduits, supports, fittings, hardware, pull boxes, junction boxes, termination boxes with terminals and wires necessary for the power distribution, instrumentation and control as shown on the Drawings.

Install and connect individually mounted disconnect switches, circuit breakers and power distribution panels and power and welding outlets.

Install, connect and test control equipment including individually mounted pushbuttons, selector switches, relays, timers and horns.



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Perform test for motors, power and control cables, lighting, grounding, control circuits, cathodic protection and hi-pot testing.

Make electrical tie-ins, as required, at new 5TP facility sites; coordinate with utility company and plant personnel.

Install power supply lines at all Block Valve Stations and facility stations and connect to the MEA/PEA 22 kV power grid in accordance with the requirements of local authorities (The electrical power tie-in location at each station shall be at the nearest, suitable electric power line of the local electric power distributor, not at the station fence). For GDF4, the power supply shall be tied-in by the Contractor from OCS#4 substation by install the Main Distribution Panel including relevant required system such as Lighting, Earthing, and CP system. For RA6MXS, Contractor shall design by including extension load for RRPP project and install required cable and equipment to tie-in with dedicated tie-in point provided by RRPP Project.

Tie-in existing field electrical equipment, earthing as required.

Install Alarm system and CCTV systems as required.

11.7 MATERIALS TESTING AND NON-DESTRUCTIVE EXAMINATION

Contractor shall be responsible to perform all materials testing and non-destructive examination required by this Contract, which will include but not be limited to soils testing, soils compaction testing, concrete and aggregate testing, test specimens for welder qualification and weld procedure qualifications; testing relative to environmental requirements; radiographic examination, ultrasonic examination, hydrostatic testing and such other testing and examination as may be required to complete the Work. Contractor shall provide the PTT with documentation demonstrating that the companies or third parties selected by Contractor to perform materials testing and non-destructive examination have the requisite qualifications required by the Contract to perform the testing or examination required.

The 5TP EPC Contractor shall subcontract a third party for NDE, which is registered with DOEB. The 5TP EPC Contractor shall submit proposed third party NDE, subjected to PTT approval, before start of any NDE works. Radiographic Examination shall have RT films (including digital files) as records.

11.8 SAFETY

The Contractor shall be responsible for the safety at all job sites including the offices. Construction Risk Assessment, Safety procedures, JSEAs and safe work rules shall be developed and submitted 30 (thirty) days prior to commencing work for PTT’s approval to proceed in accordance with the schedule requirements.



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The Contractor shall provide sufficient (pending on the number of pipeline spreads and crews) full time safety officers familiar with pipeline construction and AC mitigation measures.

Contractor shall adhere to PTT, Thai governmental and local safety standards where applicable. Work permits are required from PTT when working in or near existing PTT operating facilities. Work permits in other areas (along pipeline route) shall be obtained from applicable agencies and third parties.

As a minimum requirement, the following guidelines shall apply:

The Contractor shall ensure that all employees are made aware of the safety practices before the beginning of the work. The PTT shall have the right to stop the work at any time if the work environment inspected by the PTT is imminently hazardous to people or property. This shall not in any manner delay the completion of the project. The Contractor has the responsibility for ensuring that the Sub-Contractors comply with all safety practices and guidelines.

Contractor shall provide to the PTT the name of his representative who shall have responsibility for the safety at the job site.

The Contractor shall ensure that only those people having authorized business are allowed on the work site.

Smoking is forbidden at the job site except where posted.

In case of work involving entry into confined spaces or areas where there are flammable substances, Contractor shall not permit any work without prior written notice to the PTT and PTT approval to proceed of proper safety procedures.

If the use of explosives is required, written notification to the PTT is required before use or handling.

Precautions shall be taken by Contractor to prevent the outbreak of fire.

Good housekeeping, protective equipment, medical aid and safety procedures are the responsibilities of Contractor.

The use, possession, distribution or sale of illegal drugs and controlled substances are absolutely prohibited.

The PTT shall be immediately notified by the fastest means possible of any accident that involves serious bodily injury or death. In case of death, the Contractor shall notify Thai police for the proper investigation in accordance with the law.

Contractor shall submit to the PTT a monthly report outlining in details the safety record in all operations for the preceding month. Contractor shall conduct a safety meeting on each jobsite on the first day of the beginning of any new activity, and then once weekly. After this meeting, a Safety Patrol will investigate any violations reported at the meeting.



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11.9 EXCAVATION ALERT

Before commencing any excavation, Contractor shall be responsible to provide notice of the scheduled commencement of excavation to all PTT’s of underground facilities. Contractor shall notify the PTT not less than 5 (five) and not more than 10 (ten) business days prior to commencing any excavation.

If, during excavation, underground utilities are encountered, Contractor will be responsible for preventing damage to any utilities. If any such damage occurs, Contractor shall immediately notify the utilities’ owner and PTT. Any utility damaged by Contractor shall not be backfilled without PTT’s approval to proceed. Damage caused to utilities shall be repaired at Contractor’s expense.

Emergency excavations are exempt from the time requirements for notification; however, Contractor shall perform the applicable notifications as soon as reasonably possible.

11.10 CONSTRUCTION TRAFFIC AND ACCESS

When using existing roads, Contractor shall minimize disruption to public and/or plant traffic. Contractor shall provide alternate routes and/or flagmen as required. Contractor shall protect existing roads and facilities from damage due to Contractor’s construction traffic and shall restore any damaged roads or facilities to their original condition. Access to any existing secured plant boundaries shall be subjected to the plant operator’s regulations and Contractor may be required to install temporary gates and guard posts at access points.

Contractor in particular shall coordinate in details with the government agencies, land owners and PTT all traffic safety rules and regulations, including but not limited to work-time restrictions, lane closures, number of active construction spreads and crews and total length of open construction area, traffic routing, and general traffic security measures to allow construction alongside highways to commence safely.



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12.0 PTT STAFF TRAINING


The Contractor shall provide training for PTT staff in accordance with this section and the Contract Documents.

12.2 GENERAL

The training program shall include:

Engineering Phase

A Course for Onshore Pipeline Engineering for at least 12 PTT personnel shall be conducted by an internationally accredited Training Institute during the Detailed Engineering phase. During the engineering effort, Contractor will provide on-the-job training to PTT staff assigned to their office.

Construction Phase

The training program shall be phased to suit the construction program, such that the PTT’s personnel are fully conversant with all aspects of the operation and maintenance of the overall pipeline systems including all aspects of operations and integration of the systems with existing PTT systems.

For each discrete section of the pipeline system, commissioning will not be deemed to have been completed and formal acceptance will not be granted until training has been completed to the satisfaction of the PTT.

The final configuration of the training syllabus shall be dependent on the levels of expertise of the personnel involved. Specific requirements and the relevant personnel shall be discussed and agreed upon with the PTT and the Contractor.

The Contractor shall give comprehensive instruction and training to all the relevant personnel directly concerned with the project.

The training program shall cover the following subject areas as a minimum:

The physical characteristics of natural gas and the procedure and precautions to be observed in handling and control of the pipelines.

Start-up, operation and maintenance procedures for the pipelines, plant and equipment appertaining to the individual’s particular duties and areas of responsibility.

Pipeline system management.



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The layout of the pipelines and facilities, and the functions of each item of equipment installed therein including cathodic protection and AC mitigation facilities.

Complete instructions and training in the operation and maintenance of automatic control systems and instrumentation.

Basic action to be taken in the event of emergency and compliance with emergency procedures.

Fire Protection and Fire Fighting.

Safety, Health and Environmental Management System.

The training program shall include, but not be limited to, instruction in the operation, maintenance (including hands on experience) and trouble-shooting of the systems provided.

The Contractor shall forward to the PTT, 3 (three) months prior to the commencement of training, a detailed syllabus and program for each of the personnel to undergo training. Such materials shall cover, at a minimum, the subject areas described above.

In addition, and as a further part of the training program, PTT personnel shall partake in operating equipment during the 30 (thirty) day operating and testing period under the direct operating supervision of the Contractor. Training shall include classroom and on-site training. Contractor shall provide an adequate number of experienced operating staff for this purpose. After completion of a 30-day operating and testing period, the Contractor shall continue to provide assistance and supervision to the PTT for normal pipeline operations for one month or until initial acceptance, whichever is longer into operation of the pipeline.

12.3 PARTICULAR EQUIPMENT & SYSTEM TRAINING AND COURSE

The Contractor shall provide a course for particular equipment and system training for nominated PTT Operation and Maintenance personnel, covering:

a) theory,

b) application, and

c) design, operation and maintenance of equipment and systems.

The course shall comprise classes taught by equipment manufacturers’ authorized representatives. Training material shall be customized to reflect the configuration of PTT’s system.



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The Contractor shall provide course syllabus and training material 6 weeks prior to the approved course commencement date. The Particular Equipment and System training course syllabus shall include but not be limited to the following:

Hydraulically Operated Valve (HOV)

Shutdown Valve (SDV)

Control Valve

Ball Valve

Plug Valve

Pressure Safety Valve (PSV)

Gas Filters/Separators

Flow Computer System

Analyzer Systems

Ultrasonic Flow Meter (USM)

Distributed Control System (DCS)

Safety Instrumented System (SIS)

Process Fire and Gas Detection

Fire Alarm System/Fire Protection System for Control Building

SCADA and RTU

PIG Launcher & Receiver

Process Design, Operation and Maintenance

Emergency Blowdown/Vent/Flare Operation

Field Instrumentation

Process Control (Gas Mixing System, Gas Dispatching System)

Electrical System and Equipment

AC & DC UPS, Battery

CP / AC Mitigation System

Communication System (Fiber Optic System, UHF Radio, CCTV, LAN, Telephone system)

Other Equipment that requires training



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13.0 PRECOMMISSIONING


The Contractor shall pre-commission the pipeline and facilities in accordance with this section and, project specifications, pre-commissioning procedures, the Contract Documents and as per DOEB requirements.

13.2 GENERAL

This section covers activities required, after completion of construction, to prepare the installed pipeline and related facilities for acceptance of sales gas. In general, it includes flooding, cleaning, hydrostatic testing of each component of the system, proper treatment and disposal of hydrostatic test water, dewatering, drying and obtaining Mechanical Completion prior to putting the pipeline into service. Contractor shall provide temporary communication equipment for pre-commissioning operations.

Contractor shall perform pre-commissioning work on the pipeline or components separately, beginning as soon as practical after completion of construction.

Contractor shall prepare a complete plan for the pre-commissioning program and submit it to the PTT for approval to proceed at least 60 (sixty) days prior to beginning any pre-commissioning activity in the field. The plan shall include a detailed schedule, description of manpower and equipment requirements, details of interfaces with third parties and other PTT operations groups, and Contractor personnel experience information.

Contractor shall organize, manage, and coordinate all pre-commissioning work in cooperation with the PTT.

13.3 HYDROSTATIC TESTING

Contractor shall perform a hydrostatic pressure test of all pipe and piping components of the pipeline systems and facilities, including all piping associated with block valve bypasses and blow downs.

The Contractor shall hydrostatic test classified ‘pipeline’ installed within station boundaries, together with the main pipeline.

Contractor shall fill with water and hydrostatically test the pipelines in accordance with the project specifications.

Contractor shall furnish, mobilize and utilize all the equipment, vessels, labor, tools, supplies, hydrostatic test chemicals, pigs and whatever else that is required to complete all the hydro testing work.



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The Contractor shall hydrostatic test, mark, preserve and deliver the emergency stock pipe to a PTT designated location.

HDD pipe strings shall be hydrostatic tested prior to installation.

13.4 DEWATER AND DRY

Contractor shall include in the pre-commissioning plan a detailed procedure for drying the pipelines. The Contractor shall remove the test water from all components of the pipeline system, internally clean the system and dry the system (e.g. hot air dry or vacuum drying), in accordance with project specifications.

Contractor shall furnish sufficient equipment, tools, vessels, oil free air compressors, dehydrators, pigs and anything else required to complete the dewatering, drying and purging operation for the pipelines in 30 (thirty) days or less.

13.5 CALIPER PIG SURVEY

As part of the pre-commissioning works, the Contractor shall undertake a full dimensional survey of the 5TP over the entire length, using proprietary digital caliper pig tools, which shall be approved by PTT and will produce an electronic file as a survey record.

Contractor shall prepare a detailed procedure for running each tool and submit to PTT for approval to proceed.

Contractor shall prepare a report on the survey. The report shall contain the following information as a minimum:

1) Tool description and type

2) Dimension record

3) Location along the pipeline for each dimension

4) Location and type of defect

All measurements shall be in metric units.

Contractor shall provide one paper copy and one electronic file of a preliminary field report upon completion of the field Work and four paper copies and one electronic file copy of the final field survey report.



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13.6 INSTRUMENTATION

As part of the pre-commissioning scope of work, the Contractor shall perform functional checks of all instrumentation installed by the Contractor. Functional checks shall include receipt of signals by the RTU and the ability to view the values via the SCADA work stations at all locations, including PTT Operation Center in Chonburi, the backup control center in Pan Thong, WNMR, RA6MXS and all PTT Operation Office.

13.7 MECHANICAL COMPLETION

Prior Mechanical Completion, Contractor/Vendor shall conduct an inspection, FAT, SAT, Pre-commissioning, Commissioning along the project activity as required by specification/drawings. Detection of defect, sub-standard from approved engineering document shall be recorded as Punch List. The punch list shall be documented as categories of disciplines, location, vendor package system and it shall be closed out before Mechanical Completion.

On completion of all pre-commissioning work on the pipeline system and prior to introducing product into the system, Contractor shall notify the PTT that the pipeline system is mechanically completed. The PTT shall inspect such pipeline system and accept it as mechanically complete or advise Contractor of any deficiencies, which Contractor shall promptly remedy. Upon acceptance, the PTT will issue a “Certificate of Mechanical Completion” to the Contractor.



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14.0 COMMISSIONING


The Contractor shall commission the pipeline and all associated facilities in accordance with this section and the Contract. Contractor shall coordinate with interfacing PTT Operations Groups and third parties as required.

14.2 GENERAL

Commissioning of the gas pipeline and facilities follows completion of the pre-commissioning activities. Major components of the commissioning activity are the purging of air and/or nitrogen from the system, the initial filling with gas and pressurization and start-up of gas operations. This activity includes performance testing and finishes with hand-over of the pipeline facilities to the PTT. Contractor shall provide temporary communication systems for commissioning.

14.3 PLAN AND PROCEDURE

Contractor shall prepare a commissioning procedure plan including all materials and submit to the PTT for approval to proceed at the time of submittal of the pre-commissioning procedure. Contractor shall proceed with the commissioning program as soon as practical after completion of the drying program and availability of sales gas.

Contractor shall take the lead in organizing the commissioning program in cooperation with the PTT and other Contractors.

The principal elements of the Contractor’s commissioning plan based on 24 hour operation shall include the following:

A precise time schedule

Organization and staffing plan

A supervisor on each shift having at least 10 years’ experience in start-up operations

Redundant communications links

Communications technicians

Essential transportation

Supplementary operators for assistance to permanent staff if required

Step-by-step description of the start-up operations complete with explanatory drawings or sketches



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Define and procure all temporary facilities, instrumentation, spares and consumables, etc.

Safety measures, materials and emergency response procedure

14.4 COMMISSIONING ACTIVITIES

In accordance with applicable specifications and procedures, the following gas commissioning activities are to be performed:

Prerequisite for the introduction of gas into the system is that all utilities, safety, and support systems have been successfully commissioned and are in operation.

Pipeline purging with Nitrogen for full pipeline section. Purging section by section shall not be allowed.

Initial gas filling including provision and installation of temporary connections, bypasses, filters/separators and, if required, gas heater and blow down and/or flare facilities.

Pressurizing of pipeline, piping sections and related equipment on a section by section basis including checking for leaks.

Flowing of gas including function and performance testing of equipment, instrumentation and controls and performance of the overall system.

Acceptance of sub-systems and the overall pipeline system by the PTT.

After completion of commissioning activities, the Contractor shall notify the PTT in writing that commissioning is complete and that the pipeline system is ready for the 30 day testing/operation period.

14.5 30-DAY TESTING/OPERATION PERIOD

The Contractor shall demonstrate to the PTT that the pipeline and facilities meet the PTT’s specifications by operating the pipeline and facilities during a 30-day continuous testing period to be performed under normal operating conditions. The testing period shall begin after the PTT has accepted completion of commissioning activities and the scheduled start date for the testing period. The 30-day testing period shall be continuous 24 hours per day at normal operating conditions without major modifications or failures. The 30-day testing period will be restarted if the PTT considers that major modifications or failures have occurred.

The Contractor shall prepare and submit test plan(s) for the PTT’s approval to proceed at least 30 days prior to the scheduled start date. At a minimum, the test plan(s) shall include operation of the SCADA and CP systems and recording of the main pipeline data. The test plan(s) shall also include testing procedures, testing



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schedule, test data to be collected, how the tests will be performed and a comparison of test results to applicable specifications.

Upon completion of the 30-day test, the Contractor shall notify the PTT in writing stating that the 30-day test period is complete. Upon PTT concurrence, the PTT will issue a “Certificate of Start of Regular Operations” to the Contractor.

After issue of Certificate of Start of Regular Operations, the Contractor shall continue to provide assistance and supervisors to PTT for normal pipeline operations for one month into operation of the pipeline.

15.0 PROJECT EXECUTION PLAN

Contractor shall submit his Project Execution Plan in accordance within 60 days of the effective date of Contract. This document shall be based on the execution plan submitted with Contractor’s bid, and shall outline in details Contractor’s intended method of carrying out each phase of the Work.

16.0 PROJECT PROCEDURES AND CONTROLS

This section sets forth the procedural requirements for the coordination and performance of the Work and services by the Contractor under this contract. The Contractor shall prepare procedures to cover all aspects of the Work and issue them to PTT for review and approval to proceed. The “Procedures” shall conform with all conditions of the Contract and shall be incorporated into the Project Execution Plan. As a minimum, the following subjects are to be addressed and issued as procedures within 30 days from the effective date of the Contract.

16.1 PROJECT TEAM AND PROJECT OFFICE

Project Management: Contractor shall designate a Project Manager who will be resident in Thailand and assigned for the full term of the Contract as a single point contact for all Contractor-PTT communications. The Project Manager and all key project team members down to the level of foreman shall be fluent in English and have demonstrated experience in the Work and regional requirements. The Project Manager shall have all powers requisite for the performance of the Work. The Project Manager shall liaise with PTT and PTT’s Consultant for the proper coordination and timely completion of the Work and on any other matters pertaining to the Work. The Project Manager shall have full authority to act on behalf of and bind Contractor with respect to all matters pertaining to the performance and execution of the Work under the Contract. Contractor shall not replace the Project Manager without prior approval to proceed from PTT. If a change is requested, the Contractor shall notify



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PTT/Consultant in writing for approval to proceed at least four weeks prior to the effective date of the planned change.

Project Organization: Contractor shall prepare a procedure that shall include as a minimum a narrative and a functional Project Organization Chart illustrating all the Contractor’s departments, (e.g. engineering, procurement, coating, construction, installation, commissioning, training and their sub-departments), and locations of the Work showing reporting relationships to the Project Manager. The procedure will include names, position titles, responsibilities, past experience, mobilization dates, addresses, telephone numbers, facsimile numbers, and email addresses of the key project personnel. Changes or demobilizations of key personnel shall be notified to PTT at least one week in advance, and in the event of a change, the replacement personnel shall have similar (or better) qualifications as the departing key personnel.

The Project Organization Chart shall show all subcontracts and sub-tier subcontracts of the Work with the same data as the key project personnel.

Project Office: Contractor shall maintain a fully equipped project and detailed engineering office in Bangkok, Thailand for the purpose of conducting efficient project business with the PTT.

16.2 CORRESPONDENCE

Project Correspondence: A correspondence procedure shall be developed specifically for this Project and submitted to PTT for approval to proceed. The procedure shall illustrate the communications plan for the project.

All correspondence shall show the project title, Contractor’s project number, and unique reference number, and specific subject covered. All correspondence shall be assigned sequential log numbers. An index log of correspondence sent and received shall be maintained by the Contractor, and shall be periodically checked against PTT’s log.

Individual correspondences shall be limited to a single subject.

Requests for Information: The Contractor shall submit sequentially numbered Requests for Information, (RFI) when the Contractor requires PTT replies concerning technical clarifications or instructions. PTT will reply to the Contractor by issuing reference to the appropriate RFI number.

Document Transmittals. All procedures, specifications, drawings, data sheets, and other project documentation shall be submitted to PTT under cover of a sequentially numbered transmittal sheet. The format for the transmittal sheet shall be proposed in the correspondence procedure, and shall include the PTT document number, revision, description, and action requested.



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PTT reserves the right to request any soft files, engineering models and documentation in original software format.

16.3 MEETINGS

The Contractor shall prepare and issue for approval to PTT a job procedure for meetings required for coordination, informational and problem solving purposes during the execution of the project. Minimum requirements are summarized below:

During all manufacturing, fabrication, and installation activities, the Contractor shall conduct regular (at least weekly) local site progress meetings as agreed with PTT’s representatives at locations selected by PTT. The agenda for these meetings will include progress review, status of outstanding action items, status of the critical action item log, review of information required by either and/or both parties, work plans for the upcoming period, quality, safety, and any problems and plans for resolution of the problems. A draft version of the Weekly Progress Report shall be available as the basis for the meeting. Meeting notes shall be taken by Contractor documenting all discussions and agreements. The Contractor shall obtain PTT’s approval prior to issuance of the meeting report. The meeting report will be prepared, signed and issued for review within three working days of the meeting. The responsible person or entity and required date for completion of the action items shall be identified during the meeting and shown on the meeting notes. PTT shall have five working days after receipt of the meeting report to make comments. If no comments are made within this period, the Contractor may assume that PTT is in agreement with its contents. If comments are made, these shall be addressed by Contractor and the meeting notes re-issued within one working day. All Meeting minutes and reports shall be issued be issued with an appropriate project document number.

A Project Review Meeting will be held in PTT’s Bangkok office monthly by the Contractor or at an interval mutually agreed upon by the Contractor and PTT to review all phases of the Work. The agenda for these meetings will include progress review, status of outstanding action items, status of the critical action item log, review of information required by either and/or both parties, Work plans for the upcoming period, quality, safety and any problems and plans for resolution of the problems. Meeting notes shall be taken by Contractor documenting all discussions and agreements. The Contractor shall obtain PTT’s approval prior to issuance of the meeting report. The meeting report shall be prepared, signed and issued for review within three working (3) days of the meeting. The responsible person or entity and required date for completion of the action items shall be identified during the meeting and shown on the meeting notes. PTT shall have five working days after receipt of the meeting report to make comments. If no comments are made within this period, the Contractor may assume that PTT is in agreement with its contents. If comments are made, these shall be addressed by Contractor and the meeting notes re-issued within five working Days.

Interface meetings with PTT Operations Groups and other third parties shall be attended by the Contractor as required.



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Where Contractor is in charge of meetings, Contractor shall prepare a meeting agenda in advance and properly manage the progress at meetings with regard to discussions and timekeeping in order to minimize any wastage of time. A chairperson and timekeeper shall be identified at meetings of more than four people in order to manage time usage.

16.4 REPORTS

The Contractor shall prepare a job procedure and submit the format to PTT for approval for the following reports. As a minimum requirement, the Contractor shall prepare the following reports:

Daily Construction Reports:

Contractor shall provide within 12 hours of the completion of each day construction daily reports documenting all aspects of the works performed on the previous day. These reports shall include but not be limited to, welding, pipe stringing, NDT, ditching and padding, lowering in, flooding and testing, installation of markers and CP, and other reports as required by PTT.

Weekly Progress Report:

Shall be updated and issued weekly throughout the project, including the following items:

Updated detailed (level 4) schedules for each applicable phase of the work; final engineering, procurement, manufacturing, fabrication, and each phase of construction.

Master Document Register.

Material and equipment requisitions and purchase order status.

Subcontractor register and report.

Request for information (RFI) log.

NCR report.

Manufacture, fabrication and delivery status.

Construction Equipment and Manpower Force Report.

Installation of pipeline and status.

Installation of facilities and status.

Critical action items list.

SH&E issues including community complaint records.



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Where applicable, this report shall be issued with the meeting notes of the weekly progress meeting, and shall include the following data; a narrative of the week’s actual activities versus scheduled activities and the planned activities for the next week.

Monthly Progress Report:

Shall be submitted by the third calendar day of each month. The report shall include the following items, as a minimum:

Physical actual progress compared to planned progress through the last day of the previous month for Final Engineering, Procurement, Construction (per activity and per crew or spread), Pre-commissioning, Start-up, Commissioning, and Initial Operation. To document the monthly actual versus planned progress for all relevant construction / crew activities, the time-line diagram (march chart) shall be updated as part of the monthly progress report.

An executive summary, addressing Contractor’s overall Project performance, accomplishments compared with the scheduled activities and summarized progress of the Critical Path Method (CPM) Schedule.

A narrative addressing a general review of the Project status, milestones accomplished, Work in progress, Work planned during the next month, critical path activities, project status, and problem areas with plans for correction.

A progress analysis with updated documents including a Milestone Summary Schedule and including Graphs or Charts and “S” curves indicating in details actual versus a scheduled progress for Final Engineering, Procurement, Construction, Pre-commissioning, Start-up, Commissioning, and Initial Operation for each major component and overall for the Work.

A contract and invoicing status summary.

The procurement report, a monthly summary of the Construction Force Report, and a monthly summary of the safety report showing total hours worked number of lost-time incidents, number of lost-time days, and number of hours worked since the last lost time incident.

Photographs and a video tape of significant temporary and permanent Work in progress.

SH&E performance.

This report shall be reviewed by PTT and PTT’s comments incorporated into it. The final version of the monthly report shall then be submitted to PTT in the required number of copies.

Procurement Status Report:

Shall be issued every two weeks and summarized for the Monthly Progress Report. This report shall show the status of all requisitions, bid requests and purchase orders for permanent equipment identifiable by tag number, engineered materials, e.g. valves, and materials and subcontracts by category. The report shall show order



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number, order date, supplier shipping date (originally scheduled, currently forecast, and actual), delivery date (originally scheduled, currently forecast, and actual), status of detailed engineering and fabrication. The report shall also highlight problem areas.

Shop Inspection Reports:

These shall be issued as soon as they are received from the shop inspectors highlighting quality and expediting information.

Construction Force Reports:

These shall be issued to PTT’s representative on a daily basis. It shall show the total number of employees, Contractor’s and its subcontractor’s, by craft for manual labor and non-manual staff on site. The manual labor force tabulation shall also show the number of employees absent, hired, terminated for cause or resigned, and terminated due to reduction in force.

Safety Report:

Shall be issued daily, weekly, documenting safety meetings and training sessions that took place, and that are planned in the future. A summary safety report shall be submitted together with the Monthly Progress Report.

Safety Incident Report:

Shall be issued as soon as possible after an accident resulting in:

Death from any cause whatsoever.

A fractured skull, pelvis, arm, thigh, leg, foot or spine.

A dislocated shoulder.

The amputation of an arm, hand or of one or more fingers, or leg or a foot.

The loss of sight of an eye.

Any other serious bodily injury, including internal bleeding, burns, asphyxia where such injury is likely to endanger life, cause permanent incapacity or temporary incapacity of 5 days or more.

As required by PTT management/supervision at the job site for a serious incident, which could have caused any of the above or from which experience to avoid such an occurrence could be gleaned.

In the case of death, the Contractor shall immediately report the accident and disposition to the nearest Thai Police so they can make the proper investigation in accordance with the law.

Environmental Monitoring Report:



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Shall be issued as required by the Environmental Impact Assessment in accordance with ONEP guidelines and the associated Environmental Monitoring Program. Contractor shall provide all evidences as required by EIA.

Other Reports:

Shall be issued as appropriate:

Daily shift reports for each spread or Work unit throughout all phases of manufacture, fabrication, and installation to the Start of Regular Operations.

Daily weather report.

Environmental baseline report.

Concrete strength test reports.

Test Supervisor’s daily report.

Pigging sequence and hydrostatic testing schedule, records and reports.

Drying and purging/packing records and reports.

Welder qualification records and reports.

Weld test reports including all radiographic inspection films where applicable.

Material Management Report:

The Fifth Transmission Pipeline Project receives the privilege from Thailand Board of Investment (BOI). As a part of this privilege, import duties on Project material, permanently incorporated within the project, shall be exempted if the importation of such material complies with the requirement and procedure of BOI.

As it is mandatory to comply with the BOI process, Contractor shall be required to develop a Material Management Report after completion of the Project construction. The contents of report shall, as a minimum; cover the following requirements and shall be prepared in accordance with the required format as shown in the Attachment 1.

List of all project material, provided that it will be classified into two groups, which are either BOI Item or Non-BOI Item.

- BOI item: material that imported under BOI process and receives tax exemption privilege.

- Non-BOI item: material that has not received the tax exemption privilege, also including material, which has been procured in Thailand.

The location where material has been installed.

The imported information of each material including the reference number of related custom clearance document and related BOI approval letter.



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Within 30 days after completion of the Commissioning activities, Contractor shall submit the Material Management Report and all records of custom clearances for imported material.

16.5 SCHEDULE

Contractor shall be completely responsible for the development, implementation, control, status update, recovery and reporting of all phases of mobilization, final engineering, procurement, coating, construction, pre-commissioning, commissioning, and initial operation. Contractor shall establish a Work Breakdown Structure (WBS) as a basis for planning, scheduling and progress reporting.

The WBS shall represent measurable quantities of product and at the lowest details. It shall have the capability to be summarized directly to each Work item of the breakdown of the Lump Sum Price. Examples of measurable detailed Work items are: approved drawings, equipment and material delivered, completed fabrications, completed coating and jacketing, installed pipe, hydrostatic test complete, etc. The Contractor shall utilize the same physically verifiable progress measurement for progressing the schedule and progress for invoicing.

Contractor shall develop and submit to PTT for approval a comprehensive detailed Critical Path Method Schedule for the total project based on the WBS within 14 days after the Contract Award. The entire execution of Work shall be controlled by the Critical Path Method (CPM) schedule and the time-line diagram (March chart). The critical path diagram shall have an activity list that shall identify all Work to be carried out by the Contractor. The Project Summary Schedule shall be a summary bar chart of the main components of the WBS and shall be a summary of the CPM schedule. The Project Summary Schedule will be maintained and submitted monthly with the progress report. All schedules will be supportive of each other in a hierarchical relationship to the CPM schedule and shall be compatible or in advance of all the milestones listed as Key Milestone dates in Section 3 of the Contract.

Contractor shall provide as a minimum the following items for progress analysis:

Critical path analysis with activities list from the CPM schedule.

An overall project completion curve, represented by the planned progress to complete as derived from the CPM schedule. The vertical axis is the project percent complete (0-100%) and the horizontal axis representing the project duration in weeks.

Electric files of the schedule upon completion of monthly updates.

Contractor shall upgrade the CPM schedules as changes occur and progress update at a minimum interval of not more than every two weeks. Contractor shall provide additional effort whenever the scheduling shown on the CPM schedule indicates a possible delay in the completion date. Such additional effort may require an increase in equipment and/or personnel, extended work day or work time in excess of the



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normal work week. All extra costs incurred by the Contractor in order to prevent a possible delay in the completion date shall be at Contractor’s expense.

Contractor shall notify PTT within 24 hours after any occurrence, which will adversely affect the completion date of the Work. The Contractor shall also notify PTT at least once a week during construction by the Weekly Progress Report the status of the Critical Action Items, which could affect the completion of Work. In addition, the Contractor shall include an action plan of proposed remedial actions for expediting these items to achieve the completion date. Costs for any such items required to maintain the schedule shall be borne by Contractor.

16.6 DOCUMENT CONTROL

Procedure

Contractor shall prepare and submit a procedure and report format to PTT for approval for the control and distribution of project data and documents within thirty days of the contract award.

The document control procedure shall include a Master Document Register (MDR) of all drawings, procedures, specifications, vendor documents and other documents required or planned for the execution of the Work. The schedule of drawings shall show the drawing number, title and proposed issue date. The MDR, in a format approved by PTT, shall be updated throughout the project to show current document number, document title, document revision, issue date (originally planned, currently forecast, and actual), date of Client response, issued-for-construction date (planned, forecast, and actual), and other information as relevant. The updated MDR shall be issued to PTT on a weekly basis.

The document control procedure shall also include a distribution table. Horizontal rows shall identify entity, group or individual that shall receive the data or documents. The vertical columns shall identify the document or data to be transmitted and the status. The intersection space will designate the number of copies to be distributed.

The document control procedure shall also include a mechanism to confirm that documents issued by Contractor or returned by PTT have been received by the other party.

Format

Drawings, specifications, procedures, and other documents shall be prepared in accordance with PTT approved standards and formats. All drawings shall be drafted using AutoCAD Version 2014 and handover native files to PTT as part of Final document. PTT standard numbering shall be used on all documents.

All drawings shall be made to a reasonable scale, in sufficient details.



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All submissions shall be in the number of soft and hard copies required by PTT.

Review and Revisions

Contractor shall submit to PTT for review and approval to proceed all final design information, detailed construction drawings, sketches, specifications, procedures, detailed calculations, reports, etc. for the Work and other information required by PTT prior to issuance of same for construction. No work shall proceed until the relevant documents have been approved by PTT.

Any revisions made by Contractor to (a) documents previously issued to PTT or third parties or (b) documents included in this Contract shall be clearly marked and accepted by PTT before final re-issue. If no revisions are made, Contractor shall so state when issuing or re-issuing a document.

Without prior case-by-case notification, Contractor shall not assume that non-response by PTT or Consultant implies consent or acceptance of drawings, procedures, or proposals submitted.

Scheduling

Contractor shall submit to PTT for review and approval to proceed detailed construction drawings, data sheets, design information, detailed calculations, specifications, procedures, inspection plans, and other documents required for the Work before issuance of the same for purchase or construction.

The Contractor shall maintain a document preparation schedule that will allow sufficient time (30 days) for PTT to review after the date of receipt of the official transmittal (hard copy version) signed by PTT and request necessary revisions (if required). Review comments provided by PTT shall be promptly addressed by Contractor and updated versions issued within 15 days of receipt of PTT comments. Preliminary documents shall not be used for construction purposes.

Electronic Document Submission

Documents shall be submitted in electronic and hard copy formats. All documents that would normally be submitted in hard copy, including correspondence, engineering documents, drawings, procedures, manuals, certificates, notices, etc. shall also be submitted electronically.

Exact duplicates of hard copy documents should be submitted, inclusive of signatures. Format shall be Adobe Acrobat (*.pdf) files.

All submitted drawings shall have light, clear backgrounds with sharp, opaque object, definition lines and non-crowded dimensioning and lettering. Scanning resolution shall be selected to ensure that all details are fully legible when printed in A3 size.



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Document orientation shall be correct; typically, ‘Landscape’ for drawings and ‘Portrait’ for documents.

Numbering format shall be in accordance with the project numbering procedure and all documents shall bear a PTT standard number.

Revisions of documents comprised of multiple sheets, such as calculations, manuals, etc., shall be resubmitted as complete documents. Revised single sheets will not be accepted.

Electronic copies shall be submitted at the same time as hard copy submissions. Electronic files shall be sent by email with uploading/downloading via secured cloud server or document control system such as EDMS and shall be accompanied by an electronic transmittal form listing key details of the documents submitted. Multiple documents may be submitted under one email, but the maximum allowable email size is 10 MB.

This email address is used for document control purposes only; any project correspondence must still be submitted as per the project procedures.

Submissions exceeding the email size limit shall be broken into separate emails or, if individual files exceed this limit, submissions shall be made on a CD-ROM.

Names of files submitted electronically shall use a consistent format reflecting the document identity number. For example, correspondence file names shall match the correspondence number:

Electronic copy of letter XXX-L-NS-0001 shall be named XXX-L-BWNKK-0001.

Engineering document file names shall reflect the document number and revision.

Electronic copy of document MN-O-1504.01-010-001 Revision A shall be named MN-O-1504.01-010-001-R00A.

Hard copy submittal of all project correspondence and documents is still required for record keeping and for distribution to PTT. Hard copy engineering document submittals shall be accompanied by the project transmittal form. This form shall include the statement:

‘All documents submitted under cover of this document transmittal are exact duplicates of the electronic version transmitted.’

Copies

Review Copies: Contractor shall distribute documents electronically and in hard copies. When documents are submitted electronically, the number of hard and soft copies required for submittal shall be advised by PTT and shall in general be in accordance with the requirements given in Exhibit C.



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As-Built Copies: Upon completion of construction, the Contractor shall complete all necessary revisions to the related plans and drawings to reflect the “As-built” condition of the Work (including all vendor drawings) for review and approval to proceed by PTT. After the “As-built” plans and drawings of the Work are approved, Contractor shall furnish to PTT within thirty days, the following.

A. One complete set of original tracings (signed vault masters).

One complete set of full size reproducible drawings (master copies).

One complete set of reduced size A3 (297 mm x 420 mm) reproducible drawings. All drawings shall be fully legible when reduced to size A3.

B. 1 (one) complete hard copy set and 7 (seven) complete sets on external hard drives of all project documentation required by PTT. The hard drive copies shall contain a detailed index with links such that any document listed in the table of contents can be located by clicking on the table of contents link with no further searching required.

Other: The number of hard copies required shall be adjusted as indicated for the following documents:

Signed Project Contract, 20 copies.

Meeting and Telephone Conference Confirmation Notes, all attendees plus 7 copies.

Monthly Progress Report, 15 copies.

Weekly Progress Report, all attendees, plus 7 copies.

Unpriced purchase orders and amendments, 7 copies.

Additional copies required for distribution to third parties shall be Contractor’s responsibility.

Perform as-built survey and prepare as-built drawings, construction records, alignment sheets, SH&E as-built report, material certificates, FATs, shop inspection and certifications, NDT records, and all other project documentation required by PTT. All as-built documentation shall be provided in 1 hard copy and 7 hard drives shall be provided with complete sets of all documentation. The hard drives shall be indexed and configured to be user friendly and allow ready access to any section of the documentation by clicking on that section in the table of contents without any further searching required.

Software Licenses: Completed set of all software with full licenses, back up file, toolboxes, relevant software package, computer & printer driver from all vendors shall be handed over to PTT as part of vendor package as per specification.



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17.0 FINAL DOCUMENTATION

Documentation arises from the project from detailed design through to commissioning and operations. It is generated by both Contractor and its Subcontractors or Vendors. Contractor has ultimate responsibility for the handover of Final Documentation in accordance with this section. The overall Table of Contents shall be developed to capture the Final Documentation requirements for the project lifecycle and is grouped into nine basic categories:

1. Engineering Documents;

2. As-Built Drawings;

3. Vendor Documents;

4. Procedure Qualification & Operator Qualification Documents;

5. Construction and QC Documents;

6. Mechanical Completion and Pre-commissioning Checklist and Records;

7. Commissioning & 30 Day Operation Documents;

8. Post Commissioning Documents;

9. Permits Documents.

The Table of Contents lists the typical items to be included under each category. The specific contents of these Dossiers and Books will be varied depending on the type and complexity of the equipment and service being provided by the various parties. A detailed TOC shall be prepared. The documents from subcontractor will be split to 9 sections.



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18.0 COMMUNITY RELATIONS MANAGEMENT

The EPC Contractor’s Community Relations Team shall work alongside PTT’s Community Relations Team to successfully fulfill the requirements. The details of work to be performed are as specified in ‘Specification for Community Relation Management for Onshore Pipeline’ in Exhibit D.



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APPENDIX A: SUPPLEMENTARY

New Arrangement and Combination of BV5.15 and WNMR

The scope of work mentioned in Section 1 to Section 18 (this Exhibit B), and all of relevant documentation (Exhibit D) indicates that BV5.15 and WNMR are located in the separated different areas. However, currently PTT determines that BV5.15 and WNMR can be combined and located adjacent to the existing WNMR.

This supplementary is written in order to guide and advise the Contractor for the rearrangement. Therefore, Contractor shall ensure that the scope of works under Appendix A shall include, but not limited to:

• Contractor shall ensure that the location of BV5.15 and WNMR shall be combined at the same location and the general scope of work and design requirements of BV5.15 and WNMR shall be maintained.

• The Preliminary Drawings (P&ID, Plot Plan and General Arrangement) as attached in this Appendix A are the updated arrangements and configurations of BV5.15 and WNMR, which shall be considered and taken into account as a part of this Contract document. It may not fully include every individual scope, specification and component that shall be required for achieving and completing the works.

• The Contractor shall be responsible for verifying the information in this Appendix and for developing additional information as required in order to perform engineering, validation, purchasing, fabrication, transportation, installation and commissioning.

List of Attachments

• A3-1504.01-010-007 Rev 5

• A1-1504.01-6500-012 Rev 2

• A1-1504.01-6500-021 Rev 3

• A1-1504.01-6500-024 Rev 2

• A1-1504.01-6500-026 Rev 0

• P1-1504.01-6500-011 Rev 1

• P1-1504.01-6500-111 Rev 1

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