Annual Maintenance and associated works of Electrical and Mechanical Installations of New Technical Block cum Control Tower and new Substation at Gaya Airport, Gaya Bihar For Year 2023-25.

Amount

To carry out routine/preventive/breakdown maintenance of Electrical and Mechanical Installations for New Control Tower cum Technical Block and entire new Power House area in Air side i/c internal & exterenal electrical installation of Control Tower cum Technical Block, Sub-Station, Power House, DG room, Street Lights, Pump Room, Car Park Area etc. covering in the scope of operation, operation of DG sets , operation of Fire Fighting pumps, operation of lifts as & when required, prevntive and breakdown maintenance, taking rectification action,ensuring serviceability ,satisfactory working condition of the system, preventive maintenance, maintenance of records/documents etc. by engaging manpower round the clock basis on all days including sundays & holidays ( As per details of Manpower ) & as per detailed specifications, terms & conditions covered under this contract.

1st Year of AMC

2nd Year of AMC

Filteration of transformer oil including dehydration & removal of carbon particles in order to improve the Breakdown voltage strength of the oil including BDV testing before & after filteration and submission of test report for existing 33KV Power Transformer,complete as required.

Dismantling,Lifting and lowering of any submersible pump motor set i/c column pipe,cable, jointing of submersible cable and making connection,testing commissioning including arranging of tripod stand, chain pulley block etc.complete as required.

Supplying of transformer oil (ISI mark conforming to IS 335-1993) suitable for 500 KVA Power Transformer working on 33/0.433 KV supply.

Servicing of ACBs of various make through authorised service agents of OEM / specialized agency having capacity upto 1000 A i/c drawing out of breaker , cleaning of all contact parts, applying gel, termination of all control wires etc. repositioning the same, testing and commissioning the breaker, submission of reports etc complete as required.

Calibration and testing of measuring instruments i.e Insulation tester, Clip on Meter, Earth Tester etc and submission of test reports as required.

Calibration and testing of Buchlotz Relay for 33/.433 KV Indoor Oil Cooled Transformers and submission of test reports as required.

Servicing of Schneider - Make, 33 KV VCBs through authorised service agents of OEMs/specialized agency i/c drawing out of breaker , cleaning of all contact parts, applying gel, termination of all control wires etc. Repositioning the same, testing and commissioning the breaker, submission of reports etc complete as required. (Spares will be supplied by AAI).

Calibration and testing of IDMT relays through secondary injection machine which is having valid calibration certificate and submission of test reports as required.

Wiring for light point/fan point/exhaust fan point/call bell point with 1.5 sq.mm FRLS PVC insulated copper conductor single core cable in surface / recessed steel conduit, with modular switch, modular plate, suitable GI box and earthing the point with 1.5 sq,mm FRLS PVC insulated copper conductor single core cable etc. as required. Group C.

Wiring for circuit/ submain wiring alongwith earth wire with the following sizes of FRLS PVC insulated copper conductor, single core cable in surface/ recessed steel conduit as required.

2 X 1.5 sq. mm + 1 X 1.5 sq. mm earth wire

Wiring for light/ power plug with 2X4 sq. mm FRLS PVC insulated copper conductor single core cable in surface/ recessed steel conduit alongwith 1 No. 4 sq. mm FRLS PVC insulated copper conductor single core cable for loop earthing as required.

Supplying and fixing following size/ modules, GI box alongwith modular base & cover plate for modular switches in recess etc. as required

1 or 2 Module (75mmX75mm)

3 Module (100mmX75mm)

Supplying and fixing following modular switch/ socket on the existing modular plate & switch box including connections but excluding modular plate etc. as required

5/6 A switch

15/16 A switch

3 pin 5/6 A socket outlet

6 pin 15/16 A socket outlet

Supplying and fixing suitable size GI box with modular plate and cover in front on surface or in recess, including providing and fixing 6 pin 5/6 & 15/16 A modular socket outlet and 15/16 A modular switch, connections etc. as required.

Supplying and making end termination with brass compression gland and aluminium lugs for following size of PVC insulated and PVC sheathed / XLPE aluminium conductor cable of 1.1 KV grade as required.

3½ X 185 sq. mm (57mm)

3½ X 240 sq. mm (62mm)

3½ X 150 sq. mm (50mm)

Supplying and making indoor cable end termination with heat shrinkable jointing kit complete with all accessories including lugs suitable for following size of 3 core, XLPE aluminium conductor cable of 33 KV grade as required :

Laying of one number XLPE power cable of 33 KV grade of following size in the existing RCC/ HUME/ METAL pipe as required

Above 120 sq. mm and upto 400 sq. mm

Supplying and making straight through cable jointing with heat shrinkable jointing kit complete with all accessories including ferrules suitable for following size of 3 core, XLPE aluminium conductor cable of 33 KV grade as required : 300 sq mm

ABHISHEK INTEGRATIONS LIMITED

M/s LEESHA ELECTRICALS

M/S CHAUDHARY CONSTRUCTION

Manish Electricals

JCC ENGINEERS PRIVATE LIMITED