Providing Comprehensive Maintenance of various Electro Mechanical Services for at CLS Port Blair (SW- Repairs to Electrical Installation-2025)

Repairing of 36 W LED fitting on ceiling / false ceiling by replacing driver unit i/c disconnecting and removing the faulty driver unit, etc as required (M/s Crompton Greaves/Havells or similar superior make)

Wiring for circuit/ submain wiring alongwith earth wire with the following sizes of FRLS PVC insulated copper conductor, single core cable in surface/ recessed medium class PVC conduit as required a) 2x1.5 Sqmm +1x1.5 Sqmm

b) 2x4 Sqmm +1x4 Sqmm

Supplying and fixing of following module, PVC enclosure along with modular base & cover plate for modular switch in recess etc as required (a) 3 module

S/F of down rod 2.0 Mtr long 15mm di GI pipe medium guage, i/c fixing on ceiling with anchor fastner, complete as reqd.

Supplying and fixing following accessories in the existing Modular enclosure including connections etc as required a) 6/10 A 1 way modular switch

b) 6/10 A modular Socket Outlet

General servicing & cleaning of 1.5 TR Air Conditioner (both indoor and outdoor) by removing all dirt and dust from the fins, and cleaning the fins/tubes with cleaning solution, combing the fins, Cleaning drainage i/c replacing the missing fasteners, lugs, connectors, ferrules, flare nuts 1/4 and 5/8 inches, checking & tightening the connections, complete as required

Dismantling of 1.5 TR type AC unit from the existing position (both indoor and outdoor) with associated support, including pumping down the available refrigerent gas, disconnecting the electrical and mechanical connections, shifting the same to Havelock etc complete as required

ITC of 1.5 TR Split AC unit i/c fixing of out door and indoor unit on the wall bracket/angle iron frame (including the mounting frame), connections with copper wires, leak testing, commissioning etc complete as reqd

S/F of copper refrigerant line combined with 1/4 " & 5/8" (nominal) including making thermal insulation with polifoam sheet of not less than 5 mm thick (nominal), 3x2.5sq.mm coper cable, of 1.1KV grade, etc as required (For 1.5 TR)

Supplying & Charging refrigerent in existing AC unit as per manufacturer recommendations complete as required

Supplying and Fixing of following size PVC trunking system on the surface of wall / floor / ceiling / on the the existing cable tray with necessary connected accessories like bends, Elbows, Tee, etc as required. [Make MK India / LK or any Similar Superior Make] (a) 25 mm x 10 mm

(c) 100 mm x 50mm

Supplying and laying of cotton braided drain pipe of 20 mm dia. (nominal) cutting to the required length, providing consumables, fixing with existing accessories etc as required

S/F of 2 way MCB enclosure made of MS, including S/F one 16A, SPN MCB, connection complete as reqd.

Supplying of PVC insulated and sheathed armoured 2 core 1.5 sq.mm copper conductor 1.1 KV grade cable and laying the same on surface or in recess as reqd.(BSNL approved make).

Supplying and making end termination with brass compression gland for PVC insulated and sheathed copper conductor cable of 1.1 KV grade of size 2 core 1.5 sq.mm as reqd.

Supplying and fixing auto change over switch with current limiter, minimum 30A/5A, 230V, 50 Hz, including connection etc. as required

RANGAMALA ELECTRICAL ENTERPRISE (BID ID -812351)