SKM/B378-999-PJ-T-8820/1053

Amount

CATHODIC PROTECTIONOF UG PIPING-II FOR PDHPP USAR

CATHODIC PROTECTION

Cathodic Protection (CP) System for soil side corrosion prevention of underground fire water lines under road crossings as per details given in the specification vide document No. B378-999-06-45-CSW-0002 for U&O, GAIL Usar. All work shall be carried out conforming to the Scope of work, Design Basis, Data Sheets, specification, standards as per the tender and provisions of GCC, SCC , EIL / OWNER approved survey report/ design package, including all materials, equipment, consumables, spares, transportation, storage of materials at site, manpower, in line with direction of Engineer-in –charge.

Supply and Installation of automatic current controlled, outdoor type, oil cooled, plinth mounted transformer Rectifier Unit (T/R Unit), complete with its accessories and auxiliaries including earthing arrangement, related civil/ Foundation / Structural works and input/output cable connection and glanding of incoming and outgoing cables inside T/R unit and including all labour and materials as per specifications, drawings and directions of Engineer-in-Charge.

Supply and Installation of outdoor type, plinth /structure mounted IP-55, C.P.System Power distribution board (PDB), complete with its accessories and auxiliaries including earthing arrangement, related civil/ Foundation / Structural works and input/output cable connection and glanding of incoming and outgoing cables and also at owner switch board complete in all respects and including all labour and materials as per specifications, drawings and directions of Engineer-in-Charge.

Supply and Installation of junction Boxes excluding laying of cables, but including connection, termination and glanding of cables at junction box end for +ve header, -ve header, drainage, measurement, reference cell, anode lead cables including supporting and mounting arrangements for junction box related civil/foundation works, excavation of concrete pavement/soil whichever existing for installation, backfilling and restoration of the concrete pavement wherever existing after completion of works etc. complete and including all labour/ materials as per specifications, drawings and direction of Engineer-in-Charge.

Anode Junction Boxes (AJB) suitable for classified areas

Anode Junction Boxes (AJB) suitable for non-classified areas

Cathode Junction Boxes (CJB) suitable for classified areas

Cathode Junction Boxes (CJB) suitable for non-classified areas

Monitoring Junction box (MJB) suitable for Classified Areas

Monitoring Junction box (MJB) suitable for Non-Classified Areas

Test Junction box (TJB) suitable for Classified Areas

Test Junction box (TJB) suitable for non-Classified Areas

Current Distribution Boxes for non-classified areas (CDB)

Positive Distribution Box (PDB) suitable for Classified Areas

Supply and Laying of following cables including back filling, arrangement of Nullah/Road Crossing by using proper size PVC conduit pipe for each cable including restoration of any damage of Nullah/road crossing, clamping cables at cable/pipe racks and structures wherever existing, laying through GI/PVC conduit under RCC pavement, laying through existing cable trench or cable tray inside/outside sub-station building, supply and installation of all accessories required for cable laying including cable markers etc. complete and including all labours and materials as per specification and instructions of Engineer-in- Charge. GI/PVC Conduit pipe to be used shall be 50 mm N.B.,2.9mm W.T & 25 mm N.B.,2.65mm W.T

1C x 95sq.mm - Anode & Cathode Header Cable (Al, Al wire armoured, PVC insulated and PVC Sheathed)

1C x 95sq.mm - TR to CDB Cable (Al, Al wire armoured, PVC insulated and PVC Sheathed)

1C x 50sq.mm - Drainage Cable (Cu, Al wire armoured, PVC insulated and PVC sheathed)

4C x 50sq.mm - Power cable between Power Source and PDB (Al, PVC insulated and PVC sheathed, armoured) for 63Amp PDB

4C x 300sq.mm - Power cable between Power Source and PDB (Al, PVC insulated and PVC sheathed, armoured) for 250Amp PDB

3C x 25sq.mm - Power Supply cable between Power PDB & TR unit (Al, Al wire armoured, PVC insulated and PVC sheathed)

1C x 35sq.mm - Earthing Cable (Al, unarmoured, PVC insulated and PVC sheathed)

1C x 10sq.mm - Anode lead cable between anode to AJB (Cu, Unarmoured, PVDF insulated, HMWPE sheathed)

1C x 4sq.mm - Reference Cell / Measurement Cable (Cu, PE/PVC insulated and PVC sheathed, screened and armoured cable) .

10C x 2.5sq.mm - Reference Cell / Measurement Cable between MJB to TRU & pipe CJB to MJB(Cu, PE/PVC insulated and PVC sheathed, screened and armoured)

4C x 2.5sq.mm - Reference Cell / Measurement Cable between TJB to MJB (Cu, PE/PVC insulated and PVC sheathed, screened and armoured)

24C x 2.5sq.mm - Reference Cell / Measurement Cable between MJB to RTU & TRU to RTU (Cu, PE/PVC insulated and PVC sheathed, screened and armoured)

3C x 16sq.mm - Power Supply Cable between PDB to RTU/PLC for Central Monitoring (Al, PVC insulated and PVC sheathed, Al wire armoured)

RS485 network cable, 1.0mm2, 2-Pair, each pair twisted and Laid, Numbered or colour coded, solid copper conductor, PE/PC insulated and sheathed, provided with polyester tape over it, screened with Poly Aluminium tape of 0.3mm and armoured with one layer of GI wire cable, to be laid between RTU & FO Junction box located at each TRU shed and Master Computer & FO Junction box located at S/S.

Fibre Optic Cable, 6 Core, single mode, for Central Monitoring system to be laid between the FO Junction box located at each TRU shed and the FO Junction box located at S/S.

Supply & Making cable to pipe joint by thermit welding method or Pin brazing method including excavation of concrete pavement/soil wherever existing and including supply of all consumables, labours and materials as per specifications, drawings and directions of Engineer-in-Charge.

For 50mm2 copper cable

For 4mm2 copper cable

Supply and Installation of Permanent reference cells (Cu/CuSO4 type or Ag/AgCl type)

Design, Detail Engineering, Testing & Commissioning of System

Conducting Soil Resistivity Survey at 2 nos. locations including supply of all necessary material and labour and as per specifications, drawings and instructions of Engineer-in-Charge.

Preparation and submission of approved Detail Engineering package including location drawings, construction drawings, C.P.System equipment/material drawings and BOQ for procurement purpose as per tender specifications.

Testing/commissioning of complete CP System including interference tests and Central Monitoring & Control System including supply of all materials, labour, and as per specifications, drawings and instruction of Engineer-in-Charge.

Supply and Installation of CP System central monitoring and control considering RS485 over Fibre Optics as the communication network between RTU/PLC & Master Computer located at Central control room along with its SCADA soft ware / hardware and supply of Central Monitoring PC of i7 latest generation along with accessories as per specification for Central Monitoring & Control of TR Unit , GPS based synchronised switching on /off of TR Units & ON/OFF potential monitoring of Permanent reference Cells for Plant piping in real time, all TRU located in each shed at each S/S along with 5 no. ref.cell within the influence of zone of protection for each TRU for UG Piping shall be monitored and controlled through central monitoring and control system as per specification and direction of the Engineer- In - Charge.

Supply and Installation of Common sun/rain shed in non -classified area for T/R Units, PDB, MJB & RTU/PLC etc.

Supply of Instruments for O & M of CP System

Mandatory Spares for CP System as per spec

Supply and Installation of test point, with installation of 4" HDPE/PVC perforated pipe vertically upto pipe depth by suitable drilling method for installation of permanent reference cells as per specification & drawing & direction of Engineer-in-Charge.

Coupons

Coupon cable 1CX16 Sq. mm std. Cu conductor XLPE/PVC

CP bonding cable 1CX10 Sq. mm

Supply and Installation of materials for cable crossing of major roads by making cable duct with 6 Inch. PVC pipe embedded in RCC

Supply and Installation of Vertical shallow depth anode bed using MMO tubular anode (25mm dia.x 750mm long), 1 Number 6 A Output anode, including GI canister 200 mm ODx2m long filled with petroleum coke breeze, 1 number 1C x 10sq.mm (Cu, Unarmoured, PVDF insulated, HMWPE sheathed) anode tail cable between anode and AJB or 20m long whichever is higher & 1 No. anode to tail cable joint at anode manufacturer's factory, 1" dia. perforated vent pipe. Nylon rope shall be used for lowering canistered anode inside bore hole & RCC Pit cover shall be installed for anode bed.

Supply and installation of Test point/soil access point-4" PVC/HDPE pipe and 500 mm long with PVC end caps)

Straight through cable joint kit for following cables

1C x 95sq.mm - Anode & Cathode Header Cable (Al, Al wire armoured, PVC insulated and PVC Sheathed)

1C x 50sq.mm - Drainage Cable (Cu, Al wire armoured, PVC insulated and PVC sheathed)

1C x 10sq.mm - Anode lead cable (Cu, Unarmoured, PVDF insulated, HMWPE sheathed)

1C x 4sq.mm - Reference Cell / Measurement Cable (Cu, PE/PVC insulated and PVC sheathed, screened and armoured cable) between Ref Cell /Pipe to TJB

Preparation and submission of all approved as built drawing for complete C.P. System including soft copies for Auto cad drawings, operation & maintenance manual for CP System including commissioning report. Notes: Above SOR is indicative/tentative. Contractor to calculate actual quantity of equipment and cable lengths based on design criteria and site conditions during detailed engineering as per specification, calculation of which to be done item-rate wise.

Applicable GST Rate for above SOR items

SARK EPC Projects Pvt.Ltd. (BID ID -845642)

BIN SARI SPECIALIZED TECHNOLOGIES CORROSION PROTECTION INDIA PRIVATE LIMITED (BID ID -847818)

Corrosion Technology Services India PVT LTD (BID ID -843666)

SARK EPC Projects Pvt.Ltd. (BID ID -845642)

BIN SARI SPECIALIZED TECHNOLOGIES CORROSION PROTECTION INDIA PRIVATE LIMITED (BID ID -847818)

Corrosion Technology Services India PVT LTD (BID ID -843666)