CEYLON ELECTRICITY BOARD SRI LANKA. Procurement of Plant

Transcription

1 CEYLON ELECTRICITY BOARD SRI LANKA GREEN POWER DEVELOPMENT AND ENERGY EFFICIENCY IMPROVEMENT INVESTMENT PROGRAMME (TRANCHE 2) PACKAGE 2: LOT A MANNAR NADUKUDA TRANSMISSION DEVELOPMENT (ADB LOAN NO:47037-SRI) Procurement of Plant Design, Supply and Install Single-Stage, Two-Envelope Bidding Procedure BIDDING DOCUMENT for Procurement of Construction of: Construction of Nadukuda 220/33kV Grid Substation Augmentation of Mannar 220/33kV Grid Substation VOLUME 4 of 8 PART II REQUIREMENTS Section 6 - Employer s Requirements: Part A-Scope of Works Issued on: 14 th July 2016 Invitation for Bids No: CEB/AGM/TR/2016/IFB/GPDEEIP2-2A ICB No.: CEB/AGM/TR/2016/ICB/GPDEEIIP2-2A Employer: Ceylon Electricity Board Country: Sri Lanka Transmission Division Ceylon Electricity Board, P.O. Box 540, Colombo 2 Sri Lanka Document-Revision 3 Transmission Design Branch, CEB

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3 Preface This Bidding Document for Procurement of Plant Design, Supply and Install, has been prepared by Ceylon Electricity Board of Sri Lanka and is based on the Standard Bidding Document for Procurement of Plant Design, Supply and Install (SBD Plant) issued by the Asian Development Bank dated December 2015 ADB s SBD Plant has the structure and the provisions of the Master Procurement Document entitled Procurement of Plant Design, Supply and Install, prepared by multilateral development banks and other public international financial institutions except where ADB-specific considerations have required a change.

4 Table of Contents - Summary Description VOLUME 1 of 8 PART I BIDDING PROCEDURES Section 1 - Instructions to Bidders (ITB) This section specifies the course of actions to be taken by Bidders in the preparation and submission of their Bids following a Single-Stage Two Envelop bidding procedure. Information is also provided on the submission, opening, and evaluation of bids and on the award of contract. Section 2 - Bid Data Sheet (BDS) This section consists of provisions that are specific to each procurement and supplement the information or requirements included in Section 1 - Instructions to Bidders. Section 3 - Evaluation and Qualification Criteria (EQC) This section contains all the criteria that the Employer shall use to evaluate bids and qualify Bidders. In accordance with ITB 34 and ITB 35, no other factors, methods or criteria shall be used. The Bidder shall provide all the information requested in the forms included in Section 4 (Bidding Forms). VOLUME 2 OF 8 PART I BIDDING PROCEDURES Section 4 - Bidding Forms (BDF) A-1 Part A-Price Bid This Section contains the forms which are to be completed by the Bidder and submitted as part of his Bid. VOLUME 3 OF 8 PART I BIDDING PROCEDURES Section 4 - Bidding Forms (BDF) B-1 Part B-Technical Bid This Section contains the forms which are to be completed by the Bidder and submitted as part of his Bid. Section 5 - Eligible Countries (ELC) This section contains the list of eligible countries. VOLUME 4 OF 8 PART II REQUIREMENTS Section 6 - Employer s Requirements (ERQ) A-1 Part A-Scope of Works

5 VOLUME 5 OF 8 PART II REQUIREMENTS Section 6 - Employer s Requirements (ERQ) B-1 Part B-Technical Specification VOLUME 6 OF 8 PART II REQUIREMENTS Section 6 - Employer s Requirements (ERQ) C-1 Part C-Drawings VOLUME 7 OF 8 PART II REQUIREMENTS Section 6 - Employer s Requirements (ERQ) D-1 Part D-Supplementary Information Section 6 - Employer s Requirements (ERQ) E-1 Part E-Bank Guaranties and Certificates, Change Orders VOLUME 8 OF 8 PART III CONDITIONS OF CONTRACT AND CONTRACT FORMS Section 7 - General Conditions of Contract (GCC) This Section contains the general clauses to be applied in all contracts. These Conditions are subject to the variations and additions set out in Section 8 (Special Conditions of Contract). Section 8 - Special Conditions of Contract (SCC) This Section supplements the General Conditions of Contract (GCC). Whenever there is a conflict, the provisions herein shall prevail over those in the GCC. The clause number of the SCC is the corresponding clause number of the GCC. Section 9 - Contract Forms (COF) This Section contains the Letter of Acceptance, the Contract Agreement and Appendices to the Contract Agreement which, once completed, will form part of the Contract.

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7 Section 6 - Employer s Requirements Rev 3 6A-1 TABLE OF CONTENTS SCOPE OF WORKS 1. SCOPE OF WORKS 1.1 GENERAL DISCRIPTION OF THE PROJECT Nadukuda Grid Substation Augmentation of Mannar Grid Substation Terminal Points Site Environmental Conditions Electricity, Water, Gas and Other Services Adherance To The Environmental Mitigation Measures Plant & Equipment Including Mandatory Spare Part Nadukuda Grid Substation Augmentation of Mannar Grid Substation Civil Works, Installation, Other Services and training Civil Works Installation other services Training 32

8 Section 6 - Employer s Requirements Rev 3 6A-2 1. SCOPE OF WORKS 1.1 GENERAL DISCRIPTION NADUKUDA GRID SUBSTATION Nadukauda 220kV Grid Substation shall consist of following main features kv Indoor Gas Insulated Switchgear with double busbar arrangement comprising of 2 Nos. 245kV Line bays. 6 Nos. 245kV Transformer bays. 1Nos. 245kV Bus Coupler bay No. 220/33 kv, 63 MVA Power Transformers. (provision for 4Nos. 220/33 kv, 63 MVA transformers) kV Indoor Gas Insulated Switchgear with single busbar arrangement comprising of 6 No. Transformer bays. 18 No. Generator feeder bays 4 No. Bus section bays 4. 2 No. 33kV, 800A, 30s Earthing Transformer No. 33/0.4kV, 160kVA Auxiliary Transformer. 6. Control, Metering, Monitoring and Protection equipment. 7. Batteries, Battery Chargers, DC equipment, LVAC and Inverter equipment etc. 8. SCADA & Communication equipment 9. Substation Automation System. 10. Digital Disturbance Recorder and Power Quality Analyser 11. Energy Metering System. 12. Power and Control cables including terminations. 13. Substation grounding system and lightning protection system kVA Diesel Generator. 15. CCTV camera system. 16. Overhead Crane for 245kV GIS 17. Electrical, Civil and Mechanical works required for substation, control and other building. 18. Spare parts.

9 Section 6 - Employer s Requirements Rev 3 6A AUGMENTATION OF MANNAR GRID SUBSTATION Augmentation of Mannar 220kV Grid Substation shall consist of following main features kv Air Insulated Switchgear with double busbar arrangement comprising of 2 Nos. 245kV Line bays. 1Nos. 245kV Bus Coupler bay. 2. Control cables including terminations. 3. Substation grounding system and shield earth wire system. 4. Electrical, Civil and Mechanical works required for substation and control building. 5. Spare parts TERMINAL POINTS A. Nadukuda Grid Substation The following shall be the contract terminal points: - (a) 245kV Overhead Line/ Switchgear interfaces. 245kV Overhead Transmission lines terminate at the line bay gantry. This contract includes the connections and connectors from the 245kV switchgear to the 245kV overhead line down droppers, which terminate at the line bay gantries. (b) 36kV underground cables to GIS feeder bays. Supply of 36kV cable terminal shall be covered under this contract. (c) Fiber optical cables. Fiber optical cables for communication system up to Patch Panel shall be covered under this contract. Supply of patch panel and installation of patch panel at substation shall be covered under Transmission Line Contract. B. Mannar Grid Substation The following shall be the contract terminal points: - (a) 245kV Overhead Line/ Switchgear interfaces. 245kV Overhead Transmission lines terminate at the line bay gantry. This contract includes the connections and connectors from the 245kV switchgear to the 245kV overhead line down droppers, which terminate at the line bay gantries. Control cable connection shall be done up to the existing IEDs.

10 Section 6 - Employer s Requirements Rev 3 6A SITE ENVIRONMENTAL CONDITIONS Mannar Altitude of site above sea level not exceeding m 100 Maximum ambient air temperature Minimum ambient air temperature Average yearly temperature 0 C C C 30 Relative humidity (24 hours) % 81 Average annual rainfall mm 963 Winds Storms Average isokeraunic level Pollution Condition Pollution level for insulators and bushings (USCD) Atmospheric Corrosivity Category (ISO ) Maximum 1 to 3 second gusts at 145 km per hour. Mean speed 6 km per hour over 24 hours. Frequency of thunderstorms high 60 days per annum Very heavy saline pollution 43.3mm/kV for Mannar and 53.7mm/kV for Nadukuda C4 for Mannar and C5M for Nadukuda ELECTRICITY, WATER, GAS AND OTHER SERVICES The Contractor shall at his expense, provide all electricity, water, gas and other services necessary to execute and complete the Works on site. Prevailing tariff and service connection procedure shall be applicable ADHERANCE TO THE ENVIRONMENTAL MITIGATION MEASURES Bidders are requested to comply with the requirements stated in the Chapter 1, Clause 1.7of Section 6 Part B -Technical Specifications and also to the environmental safeguard measures described in the following documents attached in the section 6 Employers requirement Part D- Supplementary Information. The said documents prepared in accordance with the governing acts and/or guidelines, which are particularly relevant to this project may be inspected and a copy obtained free of charge from the office of the Project Manager Green Power Development and Energy Efficiency Improvement Investment Programme (Tranche II) Package 2 at the following address. Project Manager (GPDEEIIP2-Package 2) Ceylon Electricity Board, Colombo 02,

11 Section 6 - Employer s Requirements Rev 3 6A-5 Sri Lanka Telephone: (+94) Fax: (+94) address: anuruddhatilaka@ceb.lk 1.2 PLANT & EQUIPMENT INCLUDING MANDATORY SPARE PARTS NADUKUDA GRID SUBSTATION KV INDOOR SWITCH GEARS No. of 245 kv GIS Double Bus Bar with Busbar VT/ES comprising:- 1 Lot A, 245 kv, 40 ka/1 s three phase busbars 6 Nos kv single phase voltage transformers with windings as follows; 220,000/ 3: 110/ 3: 110/ 3V, Class 0.5 for Metering and Class 3P for Protection. 2 Nos kv, 40 ka/1 s three phase busbar earth switch complete with motor operating mechanism 1 No. - Local Control Panel

12 Section 6 - Employer s Requirements Rev 3 6A No. of 245 kv GIS Line feeder bays, each comprising:- 1 Lot A, 245 kv, 40 ka/1 s three phase busbars 2 Nos A, 245 kv, 40 ka/1 s three phase busbar disconnector complete with motor operating mechanism 2 Nos kv, 40 ka/1 s three phase earth switch complete with motor operating mechanism, one (01) on either side of circuit breaker. 1 No A, 245 kv, 40 ka/1 s single phase operated three phase circuit breaker for single phase auto-reclosing complete with three number of operating mechanism. 3 Nos kv current transformers with cores as follows; 2000/1000/1 A, Class 5P20 for Main 1 Protection 2000/1000/1 A, Class 5P20 for Main 2 and Backup Protection 2000/1000/1 A, Class 0.5 for Line Feeder Control 3000/1 A, Class 5P20 for Busbar Differential Protection and Breaker Failure Protection 1 No A, 245 kv, 40 ka/1 s three phase line disconnector integral with high speed earth switch complete with motor operating mechanism (spring with making capacity). 3 Nos kv single phase voltage transformers with windings follows; 220,000/ 3: 110/ 3: 110/ 3: 110/3 V, Class 0.5 for Metering and Class 3P for Protection 1Lot 1Lot - Cable terminating chamber (cone) complete with cable box. -Complete set of miscellaneous items required for safe and efficient operation of the switchgear, terminal arrangements for cables, busbar end covers or link to adjacent switchgear panel as appropriate. 1 No. - Local Control Panel.

13 Section 6 - Employer s Requirements Rev 3 6A-7 3 Nos kv, 10 ka, Class 2 Surge Arresters with counter (outdoor) 3 Nos kv cable termination bushing (outdoor), Surge Voltage Limiters, accessories and structure to terminate 245kV cable at line bay gantry Nos. of 245 kv GIS Transformer Feeder Bay, each comprising; 1 Lot A, 245 kv, 40 ka/1 s three phase busbars 2 Nos A, 245 kv, 40 ka/1 s three phase busbar disconnector complete with motor operating mechanism. 2 Nos kv, 40 ka/1 s three phase earth switch complete with motor operating mechanism, one (01) on either side of circuit breaker. 1 No A, 245 kv, 40 ka/1 s three phase circuit breaker complete with operating mechanism. 3 Nos kv current transformers with cores as follows; 200/1 A, Class 5P20 for Main 1 Protection 200/1 A, Class 5P20 for Main 2 and Backup Protection 200/1 A, Class 0.5 for Transformer Feeder Control 3000/1 A, Class 5P20 for Busbar Differential Protection and Breaker Failure Protection 1 Lot - Cable terminating chamber (cone) complete with cable box, sealing end or terminal arrangement of 245 kv cables including support structure for the cable. 1 Lot - Complete set of miscellaneous items required for safe and efficient operation of the switchgear, terminal arrangements for cables, busbar end covers or link to adjacent switchgear panel as appropriate. 1 No. - Local Control Panel 3 Nos kv cable termination bushing (outdoor), Surge Voltage Limiters, accessories and structure to terminate 245kV cable at outdoor transformer bay. (Only for two Transformer bays) 3 Nos - 245kV post insulators, (Only for two Transformer bays)

14 Section 6 - Employer s Requirements Rev 3 6A-8 3 Nos kv, 10 ka, Class 2 Surge Arresters with counter (outdoor) (Only for two transformer bays) 1 No. Neutral Current Transformer with core as follows: - Class 5P20, ratio 200/1A for restricted earth fault protection. (Knee point Voltage and secondary burden of CT shall be adequate for the proper operation of REF) (Only for two transformers) No. of 245 kv GIS Bus Coupler Bay comprising; 1 Lot A, 245 kv, 40 ka/1 s three phase busbars 2 Nos A, 245 kv, 40 ka/1 s three phase busbar disconnector complete with motor operating mechanism. 1 No A, 245 kv, 40 ka/1 s three phase circuit breaker complete with operating mechanism. 3 Nos kv current transformers with cores as follows; 3000/1 A, Class 5P20 for Protection 3000/1 A, Class 5P20 for Busbar Differential Protection and Breaker Failure Protection 3 Nos kv current transformers with cores as follows; 3000/1 A, Class 5P20 for Busbar Differential Protection and Breaker Failure Protection 3000/1 A, Class 0.5 for Bus Coupler Control 1 Lot - Complete set of miscellaneous items required for safe and efficient operation of the switchgear, busbar end covers or link to adjacent switchgear panel as appropriate. 1 No. - Local Control Pane KV INDOOR SWITCH GEARS Nos. of 36 kv Transformer Feeder Bay, each comprising; 1 Lot A, 36 kv, 25 ka/3s three phase busbars 1 No A, 36 kv, 25 ka/1s three phase busbar disconnector

15 Section 6 - Employer s Requirements Rev 3 6A-9 integral with earth switch complete with motor operating mechanism. 1 No A, 36 kv, 25 ka/1s three phase circuit breaker complete with operating mechanism. 3 Nos kv current transformers with cores as follows; 1600/1 A, Class 5P20 for Main 1 Protection 1600/1 A, Class 5P20 for Backup Protection 1600/1 A, Class 0.2 for Measuring/Metering 3 Nos kv single phase voltage transformers with windings as follows; 33,000/ 3: 110/ 3: 110/ 3 V, Class 0.2 for Metering and Class 3P for Protection. 1 Lot - Cable terminating chamber (cone) complete with cable box, sealing ends or terminal arrangement of 36 kv cables including dummy plugs and cable supports. 1 Lot - Complete set of miscellaneous items required for safe and efficient operation of the switchgear, facility to enable busbar or cable to be earthed through circuit breakers, terminal arrangements for cables, busbar end covers or link to adjacent switchgear panel as appropriate. 1 No. Neutral Current Transformer with core as follows: - Class 5P20, ratio 800/1A for restricted earth fault protection. (Knee point Voltage and secondary burden of CT shall be adequate for the proper operation of REF) (Only for two transformer) 3 Nos. -36 kv, 10 ka, Class 2 Surge Arresters with counter (outdoor), structures with post insulators and cable supports (Only for transformer bays) two

16 Section 6 - Employer s Requirements Rev 3 6A Nos. of 36 kv Generator Feeder Bay, each comprising; 1 Lot A, 36 kv, 25 ka/3s three phase busbars 1 No A, 36 kv, 25 ka/1s three phase busbar disconnector integral with earth switch complete with motor operating mechanism. 1 No A, 36 kv, 25 ka/1s three phase circuit breaker complete with operating mechanism. 3 Nos kv current transformers with cores as follows; /1 A, Class 5P20 for Main 1 Protection /1 A, Class 5P20 for Back-up Protection /1 A, Class 0.2 for Measuring/Metering 3 Nos kv single phase voltage transformers with windings as follows; 33,000/ 3: 110/ 3: 110/3 V, Class 0.2 for Metering and Class 3P for Protection. 1 Lot - Cable terminating chamber (cone) complete with cable box, sealing ends or terminal arrangement of 36 kv cables including dummy plugs and cable supports. 1 Lot - Complete set of miscellaneous items required for safe and efficient operation of the switchgear, facility to enable busbar or cable to be earthed through circuit breakers, terminal arrangements for cables, busbar end covers or link to adjacent switchgear panel as appropriate No. of 36 kv Bus Section Bay comprising; 1 Lot A, 36 kv, 25 ka/3s three phase busbars 2 Nos A, 36 kv, 25 ka/1s three phase busbar disconnector integral with earth switch complete with motor operating mechanism.

17 Section 6 - Employer s Requirements Rev 3 6A-11 1 No A, 36 kv, 25 ka/1s three phase circuit breaker complete with operating mechanism. 3 Nos kv current transformers with cores as follows; 2500/1 A, Class 5P20 for Protection 2500/1 A, Class 0.2 for Bus Coupler Control 3 Nos kv current transformers with cores as follows; 2500/1 A, Class 5P20 for Protection 1 Lot - Complete set of miscellaneous items required for safe and efficient operation of the switchgear, facility to enable busbar or cable to be earthed through circuit breakers, busbar end covers or link to adjacent switchgear panel as appropriate kv GIS bus bar VT comprising:- 18 Nos kv single phase voltage transformers with windings as follows; 33,000/ 3: 110/ 3: 110/3 V, Class 0.2 for Metering and Class 3P for Protection. (note: each bus section shall comprise of VT with metering and protection cores) LVAC SWITCH BOARDS 400V switchboards, for supplies to substation services, free standing and for indoor installation, are to be supplied and installed. The incoming supplies to each switchboard are to be interlocked to automatically establish supply to the busbar in the event of failure of the incoming supply and not to parallel any supplies. In case of failure of incoming, Diesel Generator shall be automatically switched on for emergency supplies V Main switchboard comprising: Auto change over logic for Bus-section breakers, Incoming Breakers & Generator Breaker initiated by: Incomer No. 1 from No. 1, 160 kva, 33/0.4kV Auxiliary transformer. Incomer No. 2 from No. 2, 160 kva, 33/0.4kV Auxiliary transformer. Diesel Generator for emergency supply. 1 Set - Busbars (3Phases, Neutral and Earth).

18 Section 6 - Employer s Requirements Rev 3 6A-12 8Nos - 4pole MCCBs for two incoming, one bus section, one Generator and three outgoing (rating shall be according to the load required). 1 Set - Equipment required for interlocking and automatic switch over between changeovers. incomer 1 & 2 and diesel generator including auto 3 Sets - Indicator lamps for each distribution board. 3 Nos - Ammeters. 3 Nos - Voltmeters V Distribution panels comprising: MCB for following distribution Circuits (Number of Phases and rating shall be according to the load required.) Essential loads Storage Battery Charger No.1 for 220 V Main transformer No. 1 OLTC & cooling fans Main transformer No. 2 OLTC & cooling fans Provision for transformer No.3, 4, 5 and 6 Outdoor & Perimeter lighting Indoor lighting Guard House Inverter Supply Others as necessary Spares Panel No.1 Storage Battery Charger No.2 for 220 V 245 kv Switchgear Auxiliary Power 36 kv Switchgear Auxiliary Power Cubicle lighting& space heater Distribution Panel No. 1 for small power supply Air Conditioning and Ventilation Outdoor Lighting panel Power outlet

19 Section 6 - Employer s Requirements Rev 3 6A-13 Water Supply Pump Others as necessary Spares Panel No.2 245kV Switchgear Auxiliary Power 36 kv Switchgear Auxiliary Power Cubicle lighting& space heater Distribution Panel No. 2 for small power supply Air Conditioning and Ventilation Power outlet Pumps Others as necessary Spares A separate circuit shall be provided for Oil Filtering Plant and SF 6 gas handling plants in each GIS room as shown in the LVAC drawing BATTERIES, CHARGERS,DISTRIBUTION BOARDS AND INVERTER EQUIPMENT Substation battery systems complete with chargers and distribution switchboards, as shown on drawings are to be supplied and installed in the substation building. The 220V DC system shall supply the following loads: - (i) (ii) (iii) (iv) (iv) 245kV and 36kVswitchgear standing loads of control, protection and alarms as dictated by the equipment offered on other Chapters. UPS for computer supply. Emergency building lighting of 1 kw loading for 8hours. SCADA and DC/DC converters for Communication system. After supply of the above coincident loads for a period of 8hours, the battery shall be capable of two closing and two tripping operations of each circuit breaker within the substation.

20 Section 6 - Employer s Requirements Rev 3 6A V Battery System comprising: - 2 Nos V NiCd battery banks with the minimum capacity of 350Ah (for bidding purpose only. Actual capacity shall be calculate at detail design stage) in each. 2 Sets - Charging equipment with automatic switch-over function. 1 No. - Selector switch for Chargers 1 and 2. 1 Set - DC distribution board. 1 Set - miscellaneous items Other circuits as may be required for the equipment Inverter System for Substation Automation System 2 Sets - Inverters with automatic load transfer facility by means of automatic transfer system, instrument and alarms described in Technical Specification Positive Grounded 48V DC Supply for Communication System Comprising 2 Nos. - DC - DC converters (220 V DC to 48 VDC, 20A each) 1 Set - 48V DC distribution board 2 Nos. - Spare DC-DC converters (Only converter) (220 V DC to 48 VDC, 20A each) PROTECTION, METERING, MONITORING AND CONTROL Substation Automation System:- Substation Automation system as per Clause: 5.20 of Technical Specification - Grid Substation. All facilities and requirements including necessary hardware and software shall be provided as specified in all relevant clauses in Chapter 5 of Technical Specification - Grid Substation Digital Disturbance Recorder with Analysis computers 1 No. - Digital Disturbance Recorder (DDR) with a minimum of 92 analog and 184 digital channels shall be provide as specified in clause 5.17.

21 Section 6 - Employer s Requirements Rev 3 6A-15 1No. - Remote analysis computer, a data modem with dedicated telephone line with all necessary connections from remote communication and DDR analysis software, as per Section of Volume 5 of 8. 1 No. - Local analysis computer with DDR analysis software, as per Section of Volume 5 of Power Quality Analyzer 1No. - Power Quality Analysing Equipment as per Section of Volume 5 of 8 1 Lot - Accessories to connect Current and Voltage Circuit of selected bay 1No. - Local analysis computer with analysis software Remote Work Station:- 1 No. - Laptop workstation with relay setting software as per Clause No. - Laptop workstation as per Clause kv Protection & Control facilities: - Main1 Protection and Main2 protection shall be provided in separate independent IEDs and Protection and controls shall be provided in separate independent IEDs For 2 Nos. Line bays: Mannar 1 and 2 each comprising with:- IEDs with protection functions specified in Clauses & First main protection Clauses & Second main protection Clauses Backup protection Clause Auto-Reclosing Clause Bus Bar Protection Clause Breaker Failure protection Clause Trip Circuit Supervision Clause Check Synchronizing Relay IEDs with control and metering functions specified in Clause Protection & Control IED S

22 Section 6 - Employer s Requirements Rev 3 6A-16 Clause Synchrocheck& Synchronizing Operation counter auto-trip for circuit-breaker. Operation counter hand-trip for circuit-breaker. By pass switch shall be provided as required in clause For 1 No. Bus Coupler bay comprising with:- IEDs with protection functions specified in Clause Bus Coupler/Sectionalizer Over Current Protection Clause Clause Clause Bus Bar Protection - Breaker Failure Protection - Trip Circuit Supervision IEDs with control and metering functions specified in Clause Clause Synchrocheck& Synchronizing - Protection & Control IED S Operation counter auto-trip for circuit-breaker. Operation counter hand-trip for circuit-breaker For 2 Nos. Transformer bays each comprising with:- IEDs with protection functions specified in Clause Clause Clause Clause Clause Clause Clause Main 1 Protection for transformers - Main 2 Protection for transformers - Backup protection for transformers - Bus Bar Protection - Breaker Failure Protection - Transformer Automatic Voltage Regulation - Trip circuit supervision IEDs with control and metering functions specified in Clause Clause Protection & Control IED s - Synchrocheck& Synchronizing Operation counter auto-trip for circuit-breaker. Operation counter hand-trip for circuit-breaker.

23 Section 6 - Employer s Requirements Rev 3 6A For Busbar and breaker failure protection : - IEDs shall be provided as per the requirements given in Chapter 5 of Technical Specification -Grid Substation for following functions. Clause Busbar and Breaker failure Protection kv Protection & Control facilities: For 18 Nos. 36kV feeders for incoming generator each comprising with:- IEDs shall be provided as per the requirements given in Chapter 5 of Technical Specification -Grid Substation for following functions. Clause Clause 5.16 Clause Clause kV Line Protection - Trip circuit supervision - Synchrocheck& Synchronizing - Control IED S on 36 kv level Operation counter auto-trip for circuit-breaker. Operation counter hand-trip for circuit-breaker For 2 Nos. 36kV Transformer bays each comprising with:- IEDs shall be provided as per the requirements given in Chapter 5 of Technical Specification -Grid Substation for following functions. Clause Clause Clause Clause 5.16 Clause Clause Main 1 Protection for Transformer - Main 2 Protection for Transformer - Back up Protection for Transformer - Trip circuit supervision - Synchrocheck& Synchronizing - Control IED S on 36kV level Operation counter auto-trip for circuit breaker. Operation counter hand-trip for circuit breaker For 1 No. 36kV Bus Section bay each comprising with: - IEDs shall be provided as per the requirements given in Chapter 5 of Technical Specification -Grid Substation for following functions. Clause Clause kV Bus Coupler/ Sectionaliser O/C &E/F Protection. - Trip circuit supervision

24 Section 6 - Employer s Requirements Rev 3 6A-18 Clause Clause Synchrocheck& Synchronizing - Control IED S on 36 kv level Operation counter auto-trip for circuit-breaker. Operation counter hand-trip for circuit-breaker kV frequency & voltage relays to install in above Bus Section bay comprising with:- (a) Bus section bay IEDs shall be provided with following functions as per requirements given in chapter 5 of Technical Specification - Grid Substation. Clause kV Bus section frequency & voltage relay (b) Voltage selection scheme A Voltage selection scheme shall be provided to give correct Bus section Voltage to above voltage and frequency relays Auxiliary LVAC Control IEDs shall be provided for indication in Automation System Gas Pressure Monitoring System Gas Pressure Monitoring System shall be provided for 15panels (36kV) Nos. of Energy Metering panels comprising with: - Installation of Energy Metering Panels. Transco Energy metering panel: 18 nos. energy meters with modems as specified in Chapter 9 of Technical Specification - Grid Substation for 36kV feeders. Disco Energy Metering Panel : 18 Nos. energy meters with modems as specified in Chapter 9 of Technical Specification - Grid Substation for 36kV feeders. Transformer feeder : 6 Nos of energy meters with modems as specified in Chapter 9 of Technical Specification - Grid Substation for 36kV feeders COMMUNICATION EQUIPMENT AND SCADA GATEWAYS/RTUS Fiber Optic Equipment-Nadukuda 220kV GS 01 No of STM-1, SDH multiplexer with following interfaces with redundant CPU and power supply interfaces (To be compatible with the existing optical MUXs at Mannar GSS for

25 Section 6 - Employer s Requirements Rev 3 6A-19 communication of voice, data, teleprotection signals and integration with the existing Network Management System of FOXMAN-UN by ABB ) Quantity Description 01 No. Power Supply Main 01 No. Power Supply Standby 01 No. CPU Main 01 No. CPU Standby 01 No. Optical module having interfaces for Mannar GS and one extra interface 08 Nos. FXS ports for future expansions. 02 Nos. modules With minimum 04 Nos. Ethernet ports with L2- switching, VLAN and L3- routing facility (10/100 Mbps) for IEC 104 SCADA application and DFR 01 No. module With minimum 08 Nos. Ethernet ports with L2- Switching and VLAN facility ( 100/1000 Base T) for other IT applications.01 No. module With minimum 08 Nos. Ethernet ports with L2- Switching and VLAN facility ( 100/1000 Base T) for other IT applications. Protection interfaces shall be provided as follows For 220 kv (Mannar Direction): Teleprotection : 01 No. command for Direct Tripping & 04 Nos. commands for Permissive Tripping per each circuit. Differential Protection Interface : 01 no digital channel (Optical) per each circuit All protection signals need to wire to the Optical Multiplexer protection interfaces. This multiplexer shall be connected to the existing optical multiplexer at Mannar GSS in STM-1 level. Accessories:` 01 Lot Spares, cable with accessories for each module 01 No Optical patch cords with suitable connectors to connect the patch panels to MUXs 04 Nos. 2 wire analog telephone sets. Two telephones shall be placed on the control desk SCADA Gateways - Nadukauda GSS

26 Section 6 - Employer s Requirements Rev 3 6A-20 a) SCADA Data Schedules- Circuit Data Details of the SCADA system The details of the existing SCADA system and the new SCADA system which will be implemented under new project SCCMP are as mentioned in the clause of Technical Specification The SCADA System SCADA Gateways Nadukuda GS SCADA Gateways as per clause 6.7 of Technical Specification SCADA SYSTEM EQUIPMENT AND DEVICES. Gateway System Comprising: 01 Nos. Gateway Computer and Gateway to be independent from SAS and shall be installed inside a server rack 01 No. Separate Software Access Keys (Separate Dongle/License key) shall be provided 01 No Spare Modules for each interfaces and cables and Accessories Communication Ports: 02 Nos. of RS 232(V.24/V.28) serial ports with redundancy 02 Nos. of 10/100Mbps Ethernet Ports (electrical) with redundancy All the ports shall be surge protected. b) Required SCADA for Nadukuda GSS All Analog Measurements, Station Controls, Events and Alarms shall be made available as per IEC protocol for integration and configuration to the National System Control Center coming under the SCCM Project according to the format in Annex A. Provisions for IEC shall be available in the provided gateway. The communication interfaces shall be configured as in Annex B. The signal list is attached in Annex C1. The integrated signals shall be tested up to the NSCC by the contractor Provision shall also be made available in the gateway for communicating with Master station at Regional Control Center in future SUBSTATION EARTHING The substation earthing system shall include excavation, backfilling and reinstatement of the ground, laying earth mat and driving rods and making of the connections. This shall include additional earth materials if required to reach the specified value of earth resistance.

27 Section 6 - Employer s Requirements Rev 3 6A LIGHTNING PROTECTION SYSTEM COMPRISING: - The lightening protection shall be designed according to the latest IEC or Sri Lankan standard. The earth wire to ground the lightning rods shall be provided with suitable insulation level from building and installed not to be touched by a person easily GROUNDING SYSTEM COMPRISING;- Grounding system including connections of all steel structures and electrical apparatus to earth mesh and grounding electrodes POWER AND CONTROL CABLES kV Power cables and terminations 02 Lots 245kV, Cu, XLPE insulated, MDPE or HDPE sheathed, Armoured single core cables for connections between 245kV GIS and 245kV overhead line bay gantry kV Power cables and terminations 02 Lots 36 kv, Cu, XLPE insulated, PVC sheathed, Armoured single core cables for connections between Power transformer and 36kV indoor switchgear including terminations. 02 Lots 36 kv, Cu, XLPE insulated, PVC sheathed, Armoured single core cables for connections between Power transformer and Auxiliary Transformer including terminations. 02 Lots 36 kv, Cu, XLPE insulated, PVC sheathed, Armoured single core cables for connections between Power transformer and Earthing Transformer including terminations. 18 Lots 36kV cable terminations for 36kV GIS feeder bays and dummy plugs as required All low voltage AC power cables and terminations All DC power and control cables and terminations All cables required for Protection, Control, Instrumentation, Communication, SCADA and termination All cables required for station lighting, small power, fire protection, ventilation equipment. The Contractor shall be responsible for the supply, installation, termination and testing of all cables for the execution of the works. The Contractor is on a turnkey basis and the prices for Definite Works entered by the Bidder in Schedule of Rates & Prices shall only be varied if the Contract requirements are altered, up or

28 Section 6 - Employer s Requirements Rev 3 6A-22 down. For the purpose of such variations, the rates shall be those in Schedule of Prices & Rates. The rates for supply and installation shall be those appropriate to order of drum lengths as appropriate to each type and rating of cable. The cable installation rates shall include excavation, backfilling and reinstatement of the ground, installation in concrete trenches and ducts and fixing to cable tracks and supports as necessary. Control and power cables shall be armoured and they shall be laid in concrete trenches, in the switchyard and within the buildings, they shall be cleated to cable trays. Cable trays and supports shall be supplied and installed in accordance with the Specification and included in the prices for Definite Work in Schedule of Prices & Rates TRANSFORMERS Following transformers Item Description Qty Voltage Rating Cooling 1. Power T/F 2 220/33 kv 63MVA ONAN/ONAF 2. Earthing T/F 2 33kV 800A, 30s ONAN 3. Auxiliary T/F 2 33/0.4 kv 160 kva ONAN Note: 220kV & 33kV sides of Power transformers, 400V sides of Auxiliary transformers and neutral of earthing transformer shall be supplied with outdoor type bushings and 33 kv sides of Earthing and Auxiliary transformers shall be supplied with plugging type bushings. This transformer is used for the connection of wind farm to 220kV network. Estimated harmonic levels shall be considered during the designing of power transformer DIESEL GENERATOR SYSTEM A Diesel generator of 40 kva capacity to supply the substation 400V emergency supply. The Generator shall be rated for continuous operation for at least 24 hours SUPPORTING STRUCTURES INCLUDING GANTRIES All support structures necessary for the works and all terminating lines specified under the Employer s Requirements shall be provided by the Contractor. Materials used for the structures shall comply with the Technical Specification Grid Substation. (Note: Gantries shall be coated with paints according to the atmospheric corrosivity category of the environment) MARSHALLING KIOSK Marshalling kiosks shall be provided and wired where necessary. (i.e. shall be fabricated with galvanized steel with protective coating)

29 Section 6 - Employer s Requirements Rev 3 6A MISCELLANEOUS WORKS Any work other than listed above SPARE PARTS All necessary Spare parts TOOLS AND INSTRUMENTS As per the price schedule.

30 Section 6 - Employer s Requirements Rev 3 6A MANNAR GRID SUBSTATION KV OUTDOOR SWITCHGEAR No. 245kV Double busbar system comprising:- 2 Sets A, 40kA, 245 kv three phase tubular busbars with post insulators Nos. 245kV Line bays for Nadukuda 1 and 2 each comprising:- 1 No A, 245kV, 40kA three phase busbar disconnector with hand and motor operating mechanism. 1No A, 245 kv, 40 ka/1 s single phase operated three phase circuit breaker for single phase auto-reclosing complete with three number of operating mechanism. 3Nos kV Current Transformers with cores as follows: - Class 5P20, ratio 2000/1000/1A for Line differential with backup distance protection, direction earth fault protection, non-directional over current and non-directional earth fault as Main 1 protection Class 5P20, ratio 2000/1000/1A for Line differential with backup distance protection, direction earth fault protection, non-directional over current and non-directional earth fault as Main 2 protection and line feeder control. Class 0.5, ratio 2000/1000/1A for metering. Class 5P20, ratio 3000/1A for busbar differential protection and breaker failure protection. 1No A, 245kV, 40kA three phase line disconnector with hand and motor operating mechanism and integral with hand operated earthing switch. 3Nos. - Single-phase Capacitor type voltage transformers, ratio 220,000/ 3:110/ 3:110/ 3V class 0.5 for metering and class 3P for protection, complete with circuit connections. 3Nos kV, 10kA, Class 2 Surge arresters with counters. 1Lot - Set of bay connections, connectors, clamps, arcing horn etc No. 245kV Bus coupler bay comprising:- 2Nos A, 3 phase,245kv. 40kA, busbar disconnectors with hand and motor operating mechanisms. 3Nos kv Current Transformers with cores as follows:- Class 5P20, ratio 3000/1A for over current protection

31 Section 6 - Employer s Requirements Rev 3 6A-25 Class 5P20, ratio 3000/1A for bus bar protection and breaker failure protection. 3Nos kv Current Transformers with cores as follows:- Class 5P20, ratio 3000/1A for bus bar protection and breaker failure protection. Class 0.5, ratio 3000/1A for bus bar protection and breaker failure protection 1No A, 245kV, 40kA three phase circuit breaker complete with operating mechanism, etc. 1Lot - Set of bay connections, connectors, and clamps, etc MODIFICATION OF EXISTING LVAC SWITCH BOARDS Modification required for two 245kV line bays and bus coupler bay supply BATTERIES, CHARGERS, DISTRIBUTION BOARDS Modification required for distribution board and connections required to two 245kV line bays and bus coupler bay supply PROTECTION, METERING, MONITORING AND CONTROL Modification/Additions to Digital Disturbance Recorder 1 No. - Extension to the Digital Disturbance Recorder (DDR) with a minimum of 20 analog and 40 digital channels shall be provide as specified in clause COMMUNICATION EQUIPMENT AND SCADA GATEWAYS/RTUS Fiber Optic Equipment - Mannar GS Following interfaces shall be provided for the STM-1 SDH optical multiplexer at Mannar GSS: For Nadukuda 220kV GSS direction Teleprotection Interface : 01 command for Direct Tripping & 04 commands for Permissive tripping per each circuit Differential Protection Interface : 01 no digital channel (Optical) per each circuit All protection signals shall be wired to the Optical Multiplexer protection interfaces. 01No SFP (For Nadukuda GS) 01 No Optical patch cords with suitable connectors to connect the patch panels to MUXs

32 Section 6 - Employer s Requirements Rev 3 6A-26 SCADA Gateway- Mannar GSS All Indications, measurements and Control Signals related to the Nadukuda 220kV bays shall be made available as per IEC and IEC protocols for integration and configuration to the National System Control Center through the gateway which is coming under CEANEIP-package 1 according to the format in Annex A. The signal list is attached in Annex C2. The integrated signals shall be tested up to the NSCC by the contractor MODIFICATION/EXTENSION TO SUBSTATION EARTHING Design and erection of lightning protection system with earth wires LIGHTNING PROTECTION SYSTEM COMPRISING: - The lightening protection shall be designed according to the latest IEC or Sri Lankan standard. The earth wire to ground the lightning rods shall be provided with suitable insulation level from building and installed not to be touched by a person easily GROUNDING SYSTEM COMPRISING;- Grounding system including connections of all steel structures and electrical apparatus to earth mesh and grounding electrodes SUPPORTING STRUCTURES INCLUDING GANTRIES All support structures necessary for the works and all terminating lines specified under the Employer s Requirements shall be provided by the Contractor. Materials used for the structures shall comply with the Technical Specification Grid Substation. (Note: Gantries shall be coated with paints according to the atmospheric corrosivity category of the environment) MARSHALLING KIOSK Marshalling kiosks shall be provided and wired where necessary. (i.e. shall be fabricated with higher grade of stainless steel or galvanized steel with protective coating) MISCELLANEOUS WORKS Any work other than listed above SPARE PARTS All necessary Spare parts.

33 Section 6 - Employer s Requirements Rev 3 6A CIVIL WORKS, INSTALLATION, OTHER SERVICES AND TRAINING CIVIL WORKS NADUKUDA GRID SUB STATION Preliminary Works a.) Site Survey - As per chapter 13 of Technical Specification - Grid Substation. b.) Sub Soil Investigations - As per chapter 13 of Technical Specification - Grid Substation Site Clearing a) Cutting and removing trees & shrubs. - Big trees, shrubs and boulders Site formation and up keeping a) Cutting and filling earth. - Formation level shall be 1m above high flood level. b) Rock excavation - If rock excavation is required during earth works, payment shall be made for actual quantities of rock volume based on the volume ranges mentioned in the price schedule 4 of Volume 4. c) Earth retaining structures - Earth retaining walls - All the embankments shall be protected as per specifications and drawings. - Rubble pitching work d) Anti Termite soil treatment - Anti termite treatment with more than 10 years guaranty shall be done for the control building area and site office area. e) Surface Chipping - Area covered by the earth mat Cable Trenches & Ducts - As per chapter 13 of Technical Specification - Grid Substation. - Provision shall be made for all future cables Foundations a) For take off structures & switchgear

34 Section 6 - Employer s Requirements Rev 3 6A-28 - As required for all the equipments support structures. b) For Main transformers (63MVA 220/33kV Transformer) 2 Nos c) Auxiliary & Earthing transformers 2Nos Auxiliary transformers 2Nos Earthing transformers Lightning protection system - As per chapter 13 of Technical Specification - Grid Substation Water supply & drainage system a) Water supply system - Water tank and tube well b) Waste water sewerage system - As per the specifications. c) Surface water drainage system - As per the specification Construction & Maintenance of Roads a) Access road (Asphalt) and structures - As indicated in the drawings and as per chapter 13 of Technical Specification - Grid Substation Fence, Gates and Boundary Walls a) Chain link fence and remotely operable gates - For details refer drawings for fence and gates. b) Barbed wire fence along the periphery of the premises as shown in the drawing External Lighting & small power supply services - Shall include all Switchyard Street and security lighting CCTV Camera System - Cameras should locate as indicated in the drawings and as per the chapter 13 Technical Specification Grid Sub Station Overhead Crane - Crane shall be provided for 220kV GIS room as per the chapter 13 Technical Specification Grid Sub Station Miscellaneous Works - Any work other than listed above Construction of Control & Other Buildings a) Control Building at Nadukuda

35 Section 6 - Employer s Requirements Rev 3 6A-29 - As indicated in the drawings and as per chapter 13 of Technical Specification - Grid Substation b) Site Office at Nadukuda --Permanent Building --Temporary Building (Container Type) c) Engineers living accommodation - Permanent building as indicated in the drawings (including Air Condition Facility, water tank and tube well) d) Temporary Works (Stores, access, contractor s offices etc) e) House for Diesel Generator. - 1 No. Diesel generator shall be covered with a permanent structure. f) Guard room g) Shed for car parking Construction of Building Services a) Air conditioning & ventilation system - Refer chapter 13 of Technical Specification - Grid Substation. b) Fire protection - Refer chapter 13 of Technical Specification - Grid Substation. c) Internal Lighting & small power supply services. - Refer chapter 13 of Technical Specification - Grid Substation MANNAR GRID SUB STATION Preliminary Works a.) Site Survey - As per chapter 13 of Technical Specification - Grid Substation. b.) Sub Soil Investigations - As per chapter 13 of Technical Specification - Grid Substation Site formation and up keeping a) Cutting and filling earth. - Formation level shall be 1m above high flood level. b) Rock excavation

36 Section 6 - Employer s Requirements Rev 3 6A-30 - If rock excavation is required during earth works, payment shall be made for actual quantities of rock volume based on the volume ranges mentioned in the price schedule 4 of Volume 4. c) Surface Chipping - Area covered by the earth mat Cable Trenches & Ducts - As per chapter 13 of Technical Specification - Grid Substation. - Provision shall be made for all future cables Foundations a) For take off structures & switchgear - As required for all the equipments support structures Lightning protection system - As per chapter 13 of Technical Specification - Grid Substation Water supply & drainage system a) Surface water drainage system - As per the specification Miscellaneous Works - Any work other than listed above.

37 Section 6 - Employer s Requirements Rev 3 6A INSTALLATION Erection, Installation and commissioning of structures Plant & Equipment specified in the clause 1.2 of Employer s Requirements a. Nadukuda Grid Substation b. Mannar Grid Sub Station OTHER SERVICES TRANSPORT Transport for Employer s Representatives should be provided as per chapter 14 of Technical specification-grid Spec. a) Sports Utility Vehicle (SUV) 01 b) Four Wheel Drive double cabs ENGINEERS LIVING ACCOMMODATION Engineers living accommodation shall be provided to the following sites as per clause of Technical Specifications-Grid Substations. The contractor shall construct and provide comprising minimum five (05) bed rooms, fully furnished permanent accommodation building including electricity, water, telephone facility in the location (land) provided by CEB. Further the contractor has to maintain the premises including the caretaker facility until completion of the project and handover to CEB. Until a permanent building is completed, the contractor shall provide a fully furnished rented house/building with minimum 04 bed rooms with other facilities, located near either Nadukuda or Mannar from one month from the contract commencement date COMMUNICATION FACILITY FOR ENGINEERS REPRESENTATIVES The contractor shall provide four (04) numbers of mobile phones as communication facilities for Employer s Representative during the contract period. This communication facility shall belong to active communication network in such area.