Re winding of multiple 3 phase Submersible Motors of different Horse Power and make and repairing of Submersible Pump Bowl Assembly at various Locations under Barasat AI Sub Division under the jurisdiction of Barasat AI Division during FY 25 26

A. SUBMERSIBLE MOTOR: 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 Engineer –In-Charge. a) 3 HP/ 5 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. a) 3 HP/5 H.P. 3 Phase,410-440 Volts, 50 Hz - 2 Pole,4 - 7 Amps-23 Amps. Submersible motor i) Supply of P.V.C. insulated copper winding wire conforming IS: 8783 - 1995, Part-4/ Section 1 (1 mm Nom dia.) length of copper winding wire- Max. 420 Mts

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.

Repairing charge of damaged rotor including metal grinding machining etc. of the rotor shaft to match with the original including supply in the required materials complete (Payment against this item will be made when this item will be made on the specific direction of the E.I.C.

Supplying , fitting and fixing diaphragm

Supplying, fitting and fixing 'O' Rings (consisting of 4/8 nos.)

Supplying fitting & fixing the winding protector on both sides (Top & Bottom)

Supplying, fitting & fixing bearing bush as per approval and direction of the E.I.C.

Supplying, fitting & fixing drain plug with packing & washer.

Supplying, fitting & fixing of stud with clamp for top and bottom cover complete (Consisting of 8 nos).

Supplying, fitting & fixing stud for upper/lower flange.

Supplying, fitting & fixing of water steel bolt

Charge Jointing waterproof cable with soldering water proof insulation and proper jointing compound including supplying the same and motor related materials complete (only cable will be supplied departmentally)

Supplying, fitting & fixing clutch on the thrust plate as per direction of the E.I.C.

Supplying, fitting & fixing thrust bearing segment with steel bolts on the thrust bearing housing (set of 6 nos)

Painting two coats to both inner & outer portion with best quality synthetic enamel paint (to be approved before use) including smoothening surface by sand paper for removing of old painting as per direction of the E.I.C. a) Motor

b) Pump

Re-assembling the submersible motor after completion of rewinding and repainting and allied work with the repaired spare parts or new spares where necessary (to be supplied departmentally on requisition) including checking all accessories and supplying necessary screws nuts and fitting fixing the whole thing properly as per direction of the E.I.C.

Carriage of motor from store to workshop and back to store after repair. This item is only applicable when written permission is available from E.I.C. where there is no facility for such work in the sub- division.

B. Submersible Pump Bowl Assembly: Dismantling submersible pump/bowl assembly suitable for a capacity of 30/150/200 Cum per hour capacity against a total head of 15 mtrs. to 30 mtrs. of different make & segregating all spares fitted with the pump including washing & cleaning the same thoroughly for verification of serviceable and unserviceable spares as per direction of the E.I.C.

Supplying, fitting and fixing of bearing bush made of stainless steel as per required shape size duly approved by the E.I.C.

Supplying, fitting & fixing of pump coupling as per requirement

Supplying, fitting & fixing dynamic filter with circlip & rubber washer for lubricating pump bush as per direction of the E.I.C

Supplying, fitting & fixing the Bowl Bush made of phosphorus, bronze or in original suitable for particulars size pump with water fitting screw as per direction of the Engineer-in-charge (four nos)

Supplying, fitting & fixing Impeller seal ring made of Phosphorus Bronzeas per direction of the E.I.C (four nos)

Labour charges for reassembling the submerssible pump after completion of repairing spares etc & allied works with requred spares or new spares when necessary to be supplied departmentally which are not providedin schedule including screws, nuts, lubricating materials etc as per required as per direction of E.I.C.

Testing of repaired motor by contious 8 hrs running on load as per direction of E.I.C.

Carriage of motor from store to workshop and back to store after repair. This item is only applicable when written permission is available from E.I.C. where there is no facility for such work in the sub- division.

Total cost for 10(One) No. Submersible Pump-Motor set Note : Deduction towards dismantled burnt enamelled copper wire from induction motor or Submersible Pump- Motor set on the basis of actual measurement to be retained by the agency. (Note: In case of PVC insulated copper wire to arrive at net burnt weight 10% deduction will be made) @ Rs.351.00 per Kg.

Add GST@18% on total

Total:-

Labour welfare cess @1% on total with GST

Gross Amount for Maximum probable cost for 10(Ten) No. Submersible Pump-Motor set including all tax

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