tender no pser:sct:nbn-m1572:14 volume ii · pdf filesteam turbine generator package ... raw...

BHARAT HEAVY ELECTRICALS LIMITED (A Govt Of India Undertaking)
POWER SECTOR EASTERN REGION PLOT DJ 9/1, SECTOR II, SALT LAKE
KOLKATA 700 091
TENDER NO PSER:SCT:NBN-M1572:14 VOLUME II TECHNICAL CONDITIONS OF CONTRACT
& SCOPE ETC
JOB DESIGN, ENGINEERING, MANUFACTURING, SUPPLY/ DELIVERY, ERECTION, COMMISSIONING, TRAIL RUN, HANDING OVER TO CUSTOMER, ETC OF COMPRESSED AIR SYSTEM
CAPACITY 3X660 MW PROJECT NABINAGAR PROJECT , BIHAR

NATIONAL THERMAL POWER CORPORATION LTD.
NABINAGAR SUPER THERMAL POWER PROJECT STAGE II (3X660 MW)
TECHNICAL SPECIFICATION FOR
COMPRESSED AIR SYSTEM
SPECIFICATION NO.: PE- TS- 393- 555- A001 Rev. 00
BHARAT HEAVY ELECTRICALS LTD POWER SECTOR
PROJECT ENGINEERIING MANAGEMENT NOIDA
1
k.anishTypewritten Text
k.anishTypewritten TextTENDER NO. PSER:SCT:NBN-M1572:14

CONTENTS
TITLE NO. OF SHEETS
VOLUME-II B
SECTION-A INTENT OF SPECIFICATION 01 SECTION-B PROJECT INFORMATION 07 SECTION-C.1 SCOPE, TERMINAL POINTS & EXCLUSION 02 SECTION-C.2 SPECIFIC TECH REQUIREMENTS (MECHANICAL) 49 SECTION-C.3 SPECIFIC TECH REQUIREMENTS (ELECTRICAL) 66 SECTION-C.4 SPECIFIC TECH REQUIREMENTS (C&I) 35 SECTION-C.5 APPROVED SUB-VENDOR LIST 04 SECTION-C.6 MANDATORY SPARES LIST 03 SECTION-C.7 FUNCTIONAL GUARANTEES 01 SECTION-D TECHNICAL DATA SHEET 04 SECTION-E QUALITY ASSURANCE 02 SECTION-F SUGGESTIVE PRICE FORMAT 04 ANNEXURES:
I- FORMAT FOR NO DEVIATION CERTIFICATE II- SCHEDULE OF TECHNICAL DEVIATION III- LIST OF RECOMMENDED SPARES IV- LIST OF COMMISSIONING SPARES V- GUARANTEED POWER CONSUMPTION VI- LINK FOR DOCUMENT SUBMISSION THROUGH WEB VII- LIST OF APPR. DISTANCES FROM COMRESSOR HOUSE TO HTSG & DDCMIS (SG C&I) VIII- MASTER DRAWING LIST IX- LIST OF DRAWINGS (ATTACHED WITH TECHNICAL SPECIFICATION)
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DOCUMENT NO.: PE-TS-393-555-A001
COMPRESSED AIR SYSTEM VOLUME- IIB
3X 660 NABINAGAR STPP SECTION-A REV. 0 SHEET 1 OF 1
PEM
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6-0
VOLUME - II B SECTION A INTENT OF SPECIFICATION
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SCOPE OF ENQUIRY SECTION-A REV. 0 SHEET 1 OF 1
PEM
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6-0
1.0 SCOPE
This specification covers the design, manufacturing, inspection and testing at manufacturers work, proper packing, delivery to site, supervision of erection and commissioning, final painting & carrying out acceptance tests at site of compressed air system as mentioned in the different section of this specification for 3X660 MW NABINAGAR STPP.
2.0 GENERAL TECHNICAL INSTRUCTIONS
2.1 This volume covers requirements of design, engineering, manufacturing and delivery to site,
supervision of erection and commissioning of the complete plant. It is not the intent to specify completely all details of design and construction. However, all the equipment shall conform, in all respect, to high standard of engineering, design and workmanship and be capable of performing the required duties in a manner acceptable to the owner who will interpret the meaning of drawings and specifications and shall be entitled to reject any work or material which in his judgement is not in full accordance herewith.
2.2 The bidder may offer optionally the standard design of equipment indicating the deviations from
the specification. However, feedback reports must be furnished of equipment performance. The acceptance of optional equipment shall not be binding on Purchaser.
2.3 In case of conflict between the various clauses of specification, stringent of the conditions as
per owner interpretation shall prevail.
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3X 660 NABINAGAR STPP SECTION-B REV. 0 SHEET 1 OF 1
PEM
-666
6-0
VOLUME - II B SECTION B PROJECT INFORMATION
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CLAUSE NO.
PROJECT SYNOPSIS
NABINAGAR SUPER THERMAL POWER PROJECT (3X660 MW)
STEAM TURBINE GENERATOR PACKAGE
TECHNICAL SPECIFICATION
SECTION-VI
PART-A
PROJECT
SYNOPSIS PAGE
1 OF 10
1.00.00 BACKGROUND A Memorandum of Understanding was signed between NTPC Limited (NTPC) and
Bihar State Electricity Board (BSEB)/Govt. of Bihar to establish a 3X660 MW (1980 MW) coal based power project at Nabinagar in Aurangabad Distt. of Bihar.
Subsequently, a Joint Venture Agreement was signed between NTPC and BSEB for
Establishment and Operation & Maintenance of the Thermal Power Project and a Joint Venture company namely, Nabinagar Power Generating Company Private Limited was formed with equity structure of 50% each by NTPC and BSEB.
The present proposal is to implement New Nabinagar Thermal Power Project,
(3x660 MW) at Nabinagar, Aurangabad District of Bihar for the benefit of Bihar and other willing of States/UTs of Easteern Region during early XII Plan period.
1.01.00 Location and Approach The project site is located near villages Barem, Harcharanpur, Gokul-Bigha in the
North-East of proposed Nabinagar joint venture project with Railways at a distance of about 23 kms from Dehri-On-Sone in Aurangabad District of Bihar with coordinates as latitude 24O-47'N and logitude 84O-10'E respectively. The site is approachable from NH-2 from Barun through single lane metalled road. The nearest BG Rail head Akhora on Barun Daltenganj railway line is about 5 km away. The nearest airport is Gaya located at a distance of approximately 100 kms from the project site.
Vicinity Plan of the project is placed at Exhibit No.-1. 1.02.00 Land Govt. of Bihar vide letter dated 24.05.07 have been accorded in-principle
commitment for availability of land for the project. Subsequently, the site was shifted to north of earlier identified area. Govt. of Bihar vide letter dated 04.11.08 have been requested to accord in-principle commitment for availability of 3000 Acres of land for the revised location.
1.03.00 Water The project site is located near the river Sone which is the only source of water for
the project. Therefore, the make up water requirement for the project is proposed to be drawn from the pondage created by Indrapuri Barrage, which is about 3 Kms from the proposed site.
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CLAUSE NO.
PROJECT SYNOPSIS
STEAM TURBINE GENERATOR PACKAGE
TECHNICAL SPECIFICATION
SECTION-VI
PART-A
PROJECT
SYNOPSIS PAGE
2 OF 10
1.04.00 Railway Siding Employer intends to construct the railway siding to project site from the nearest
existing railway line. However, the same may not be available to the bidder for his use to transport equipment and material.
Bidder may visit the site and acquaint themselves with the facilities available. 1.05.00 Metrological Data Important meteorological data from nearest observatory at Dehri is placed at
Annexure-I. 1.06.00 Plant Water Scheme The Plant water scheme is described below. 1.06.01 Condenser Cooling (CW) Water System It is proposed to provide recirculating type CW system with induced draft type
cooling towers. For the recirculating type CW system it is proposed to supply clarified water as make up. Raw water from the make-up water pump house shall be pumped to a Water Pre-treatment Plant (PT - CW system). The treated clarified water shall be led to the cold water channel of CW system. CW system shall be operated at a C.O.C of about 4 and CW side stream filtration and chemical treatment programme (using acid dosing and scale cum corrosion inhibitors dosing) may be employed in addition to blow down of CW water to control the CW system chemistry. The expected circulating water analysis is given in this sub-section. The CW blowdown water shall be led to a Service water Tank. For carrying circulating water from CW pump house to TG-area and from TG area to cooling tower, steel lined concrete encased duct would be provided. For interconnecting CW duct with CW pump, condenser and cooling towers, steel pipes would be used. Cooled water from cooling tower will be led to CW pump house through the cold water channel by gravity.
1.06.02 Equipment Cooling Water (ECW) System (Unit Auxiliaries) The plant auxiliaries of Steam Generator and Turbine Generator shall be cooled by
Demineralised (DM) water in a closed circuit. The two independent primary circuit DM water shall be cooled through plate type heat exchangers by Circulating Water tapped from CW system in a closed secondary circuit. The hot secondary circuit cooling water shall be cooled in the cooling towers and shall be returned back to the system.
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CLAUSE NO.
PROJECT SYNOPSIS
STE

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