21/T of 25-26 of AE/BESD

Amount

Servicing, cleaning & checking of 2 (two) nos. 415V, 2000A, 50KA draw out type Air Circuit Breaker as incomer & 1 (one) no. 2000A ACB as bus coupler of said LT panel including also testing the same with Megger in presence of professionally registered Electrical Supervisor as per direction of EIC. The scope of work also includes the following a)Dismantling, cleaning and assembling of front cover, push button, locking device. b)Dismantling, cleaning of arc chute cover and terminal shield. c)Dismantling, cleaning, checking and assembling of arc chute. d) Dismantling, cleaning/greasing and assembling of electrical spring charging Motor. (In Electrical only) e)Dismantling, cleaning, checking/testing and assembling of tripping coil/closing coil. (In Electrical Only) f)Dismantling, cleaning & tightening of Protection Relay. g)Checking of main contact wear by physical inspection. h)Cleaning and greasing of Breaker main Mechanism by L&T recommended fully synthetic imported multipurpose grease to increase the reliability in terms of mechanical as well as electrical properties and their endurance. i)Inspection of main spring/tripping spring/locking spring. j)Dismantling, cleaning and greasing of spring charging handle. k)Inspection/cleaning of breaker rear terminals & greasing them. l)Inspection/cleaning of the changeover contacts of the OFF switch. m) Dismantling, cleaning/greasing and assembling of clusters. (applicable for drawout circuit breaker only) n)Dismantling, cleaning/greasing (as required) of hand pullout system, racking mechanism of ACB. o)Chassis and function position indicators.(In drawout type only)

Supply & Fixing of (Red-30, Yellow-10, Blue-10, Green-30, White-30) 240V AC/DC LED Indicatior (Make- L&T cat no- EPL/As per sample from existing one/Brand approve by EIC) incl.making all the connections as per direction of E.I.C.

Supply & Fixing of 1 Phase, AC Digital LED Ammeter having specification of Aux. Supply- 230V AC, 50 Hz, Input Current- 5A common, Full scale:1999 (Make- L&T/ RISHABH cat no- RISH DPM 196A/Brand approve by EIC) after dismentling of existing damaged Digital Ammeter at existing main LT Panel incl. making all the connections as per direction of EIC.

Supply & Fixing of 1 Phase, AC Digital LED Voltmeter having specification of Aux. Supply- 230V AC, 50 Hz, Input Voltage- 500V common, Full scale:1999 (Make- L&T/ RISHABH cat no- RISH DPM 196V/Brand approve by EIC) after dismentling of existing damaged Digital Voltmeter and at existing main LT Panel incl. making all the connections as per direction of EIC.

Finishing the end of following XLPE/PVC armoured cables by crimping method incl. supplying and fixing solderless socket (Dowels make), tapes, anticorrosive paste & jointing materials

4 core 150 sqmm cable

4 core 185 sqmm cable

4 core 300 sqmm cable

A. B. ELECTRIC AND SOUND (BID ID -6457665)

MONALISA (BID ID -6409181)

DEBNATH ENGINEERING WORKS (BID ID -6421102)

B. ENGINEERING CO. (BID ID -6447849)