144/T of 25-26 of AE/BESD

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. n)Dismantling, cleaning/greasing (as required) of hand pullout system, racking mechanism of breaker. o)Chassis and function position indicators. p)Checking and tightening of control unit connection block and chasis rear terminals.

Supply & Fixing Mild Steel Checker plate (Jindal/Bansal/Tata) of 6 mm thick after cutting and sizing by LPG industrial gas & gascutter of following sizes on the existing ducting and also providing arrangement of lifting the checker plate by means of suitable sizes of half round cutting hole on trench as per direction of EIC.

0.85Mtr x 0.7Mtr - 3 nos. 0.7Mtr x 0.45Mtr - 2 nos. 0.75Mtr x 0.35Mtr - 2 nos. 1.1Mtr x 0.75Mtr - 1 no. 0.9Mtr x 0.8Mtr - 2 nos. 0.8Mtr x 0.25Mtr - 2 nos.

Supply & Fixing GI sheet (20SWG) metal Cowl with MS flat iron frame & GI wire mesh on wall with necy. bolts & nuts (6 mm dia x 62 mm long)

45 cm Exhaust fan (18") (for existing fan)

Supplying and fixing MCB SS enclosure with IP-20/30 protection, powder coated provision for two/four pole MCB, concealed in wall after cutting the wall & mending good the damages to original finish incl. painting, connection & provision for earthing attachment. [Make- Legrand/L&T/ABB]

Distribution wiring in 1.1 KV single core stranded 'FR' PVC insulated & unsheathed copper wire (Make- RR Kabel/Polycab/Finolex/Havells) in 20mm size PVC rigid conduit 'FR' (Precision make) incl. necy. fittings as required.

2 x 22/0.3 (1.5 sqmm) + 1 x 22/0.3 (1.5 sqmm) ECC (for exhaust fan)

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 400 sqmm

4 core 240 sqmm

4 core 120 sq.mm.