To carryout urgent repairs to defective acb of ncn data centre at NTS Teylerabad under GE Minniebay

Amount

M&L for dismantling the cable connections of four pole/ three pole Air circuit breaker of capacity 1000 Amps ,415 V 50 HZ of Siemens make, strip opening the Air circuit breaker, inspecting the parts for serviceability/overhauling complete and carrying out the following repairs/maintenance :- a) Cleaning the insulation parts including bushings with CRC solution. b) Checking the alignment and condition of movable and stationary contacts and adjust them all as per manufacturer's instructional manual c) Check the bolts, nuts, washers, cotter pins and all terminal connections are in place and tights. Replace the worn-out parts. d) Check arc chutes for damage. e) Checking/inspecting shunt trip coil & under voltage coil for serviceability and replacing the same if required. f) Check after servicing the circuit breaker to verify the contacts move to the fully opened and fully closed positions, that there is an absence of friction and that the electrical operation is functional Note : The rate quoted deemed to be inclusive of T&P and minor spares like lubricants, nuts/bolts/washers/ pins etc. Major spares like Shunt release, under voltage release, motorised operating mechanism & arc chutes etc will be measured & paid separately under relevant schedule items as supply only.

Supply only under voltage release (380 V/415 V AC) of Siemens make cat part No. 3WT9853-1JM00 or compatible to the ACB of siemens make and model 3WT8105-6QA03-5AB2 complete all as specified and as directed.

Supply only motorized operating mechanism with electrical closing (220 V/240 V AC) of Siemens make cat part No. 3WT9831-1JK00 or compatible to the ACB of siemens make and model 3WT8105-6QA03-5AB2 complete all as specified and as directed.

SHUVAM CONSTRUCTION (BID ID -3519853)

SURAKSHA SECURITY SERVICES (BID ID -3519947)