Development of New Civil Enclave at Bagdogra Airport. (SH- Provision of SCADA Compatible 33 KV, 4-Panel Shunt Trip RMU with VCB, Control and Relay Panel and Battery Charger within AAI premises for facilitating new 33 KV Bulk Power supply from WBSEDCL

Design, Supply, Installation, Testing & Commissioning of SCADA Compatible 33 kV, 1250 A, Short-time-Current (STC) withstand capacity shall be 26.3 kA for 3 seconds, 4-Panel (I/C-2, PT-1, O/G-1) Shunt Trip Ring Main Unit (RMU) indoor type with VCB, complete with all necessary equipment, accessories and auxiliaries, suitable for the electrical system and service conditions of West Bengal State Electricity Distribution Company Limited (WBSEDCL) and conforming to the Technical Specification of tender, relevant IS/IEC standards etc.

Design, Supply, Installation, Testing & Commissioning of Indoor type Control Relay Panel (CRP) suitable for 33 KV outgoing feeders from above item No.- 1 complete with all necessary relay, equipment, accessories and auxiliaries, suitable for the electrical system and service conditions of West Bengal State Electricity Distribution Company Limited (WBSEDCL) and conforming to the Technical Specification of tender, relevant IS/IEC standards etc.

Design, Supply, Installation, Testing & Commissioning of Float cum Boost Battery charger of Input AC Power supply of 415 V +/- 10%, 3-phase 4 wire, 50 Hz & Output DC as per technical specifications of tender including suitable VRLA batteries, metering, indications etc. complete as per technical specifications of tender.

Liaison and coordination with West Bengal State Electricity Distribution Company Limited (WBSEDCL) for arranging and facilitating the physical inspection of materials/equipment by the authorised officials of West Bengal State Electricity Distribution Company Limited (WBSEDCL) , in accordance with the Special Conditions of Contract and applicable West Bengal State Electricity Distribution Company Limited (WBSEDCL) requirements, including all expenditure towards to-and-fro transportation/travel, boarding and lodging/accommodation and other admissible incidental expenses of the inspecting officials. The measurement & payment of this item shall be made only after carrying out successful physical inspection & dispatch clearance from West Bengal State Electricity Distribution Company Limited (WBSEDCL).

Supply and fixing of following types of high voltage Synthetic Insulating mat conforming to IS 15652:2006 with minimum width of 1 Metre. Insulating mat should be flexible, anti-skid, fire retardant, water and moisture proof with no adverse effect of acids, alkalis and transformer oil. Insulating mat should be fixed with suitable adhesive/chem bound resin, water proofing compound and other sealing materials as per specifications. (a) Class- C type, Up-to 33 KV (Thickness: 3 mm)

Supply & fixing of 5mm thick Chequered Plates (MS) on cable trenches including providing of suitable angles as stringers on floors/cable trench etc. as required as per site condition.

Earthing with G.I. earth plate 600 mm X 600 mm X 6 mm thick including accessories, and providing masonry enclosure with cover plate having locking arrangement and watering pipe of 2.7 Meter long etc. with charcoal/ coke and salt as required.

Providing and fixing 25 mm x 5 mm G.I. strip in 40 mm dia G.I. pipe from earth electrode including connection with G.I. nut, bolt, spring, washer excavation and re-filling etc. as required.

Providing and fixing 25 mm X 5 mm G.I. strip on surface or in recess for connections etc. as required.