Andaman Lakshadweep Harbour Works Tender

SHEDULE – I ( Electrical works) Name of works:- Electrical Work -Providing 3 Phase 11 KV / 415 Volt Electrical Power Supply facilities, Fire Water Pump, Area Lighting and associated UG cable works at Berthing Wharf of Indian Coast Guard Ship, Androth Break Water, Lakshadweep. Item No.1 Design, Manufacturing, Supply, Installation, Testing and Commissioning of 11kV Outdoor type 400Kva Package Sub-Station consisting of 11/0.433KV, Oil type transformer, HT panel, LT panel inside GI sheet steel enclosure with all interconnections, fully type tested as per the IEC-1330 complete in all respect each consisting of following items & as per detailed technical specifications:

Outdoor Enclosure Outdoor type enclosure having modular construction of Galvanised Sheet Steel in corrugated/Louvered design type wall design for better heat dissipation and providing robust construction for sea front environment. The Enclosure shall have IP54 degree of protection for HT & LT switchgear compartment & IP23 degree of protection for Transformer compartment. The enclosure exterior shall be painted with epoxy based powder paint ( colour RAL 7032)/Powder coated. Each compartment will be provided with the door and pad locking arrangement. Doors of transformer compartment are fitted with Arc reflectors from the inside for providing better safety. The compartment illumination lamp with door operated switch shall be provided for each compartment. Dimensions of enclosure will be as per the components required and mentioned in BOQ. Final drawing to be get approved from competent authority. Packge Sub-Station is outdoor plinth mounted type.

HT Switchgear 11kV, 21kA for 3 sec. Non-Extinsible Compact switchgear (Type 1 VCB) consisting of 1No. Fixed Manually operated 630A VCB in SF6 insulated stainless steel enclosure along with i) Manual spring charging arrangement and manual close & open push buttons, ON / OFF. ii) Self powered relay O/C & E/F relay type with single protection core cast resin type CT with 2.5VA,CL-5P10. iii) Manually operated 630A load breaker switch with built-in earth switch having full making capacity. iv) Mechanical position indicator. Switch ON/OFF/EARTHED. v) Live Cable Indication. vi) Outgoing Cable compartment cover interlocked with earth switch. etc as required. Interconnection between HT switchgear and transformer shall be using Al. unarmorured XLPE Cable.