WRIDD/ EE (A-I) /Malda/ eNIT- 02 /2026-27 (Sl. No. 01 to 08)

(b) Dismantling of different H.P 2800/2900/3000 RPM submersible motors, removing old burnt out coil from slots carefully, segregating all the parts, washing and cleaning the same thoroughly for verification of serviceable and unserviceable parts as per direction of E.I.C. (iii) 12.5/15 H.P Submersible Motor.

Rewinding of different H.P 3 phase 410-440 volts , 50 Hz , 2 / 4 poles submersible motor of different make with PVC insulated copper winding wire (1mm to 2mm nom. dia.) as per IS 8783, 1995, part 4 Sec 1 (FINOLEX/ INCABE make to be approved before use) as provided by the motor manufacturer including supplying fitting and fixing fire proof fibre chips on slots for keeping winding wires in position, taped by using water proof tape of 660 volts grade with main cable and fitted with water tight compound by using steel grip tape and vulcanised rubber tape by heating, changing thrust plate, ball retainer and ball including supplying fitting, fixing rings circlips for thrust plate, water seal ring, diaphragm, bush bearing etc. complete as per direction of E.I.C (c) (b) 12.5 H.P / 15 H.P 3 Phase, 410-440 votls, 50 Hz, 2 pole, 18 amps - 23 amps submersible Motor (i) Supply of PVC insulated copper winding wire conforming IS 8783, 1995, part 41 Sec 1 (1.4 mm nom. dia). Length of copper winding wire - max. 450 mts.

(ii) Labour charge for rewinding, water proofing ,fitting and fixing fire proof fibre chips on slots for keeping winding wires in position, taped by using water proof tape of 660 volts grade with main cable and fitted with tight compound by using steel grip tape and vulcanised rubber tape by heating as per direction of E.I.C Revised rate ch 4.00 item no 3/ii ]. 12.5/ 15.00 HP 3 phase 410-440 volts , 50 Hz, 2 pole, 18 amp-23 amps submersible motor

(a) Repairing of damaged motor shaft by metaling with electric welding and turning properly to house in the bearing space and coupling side teeth and also rectifying the dynamic balance of the rotor to its original alignment to avoid any vibration all complete as per direction of the E.I.C.

(b) Supplying , fitting and fixing the winding protector on both sides (Top and Bottom)

(c) Supplying, fitting and fixing the bush bearing for motor in place of damaged as per approval and direction of the Engineer-in-charge. For 12.5/15 HP motor. i) Top for Motor.

ii) Bottom for Motor

(d) Supplying, fitting and fixing drain plug made from brass metal with gasket and washer (one for drain plug one for water filling plug and one for verting plug

(e) Supplying, fitting and fixing stud bolt with nuts for top and bottom cover