WRIDD/ EE (A-I) /Malda/ eNIT- 14 /2025-26 (Sl. No. 01)

(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) 17.5 H.P / 19.25 H.P / 20HP 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) 17.5 H.P / 19.25H.P / 20 HP 3 Phase 410-440 votls, 50 Hz 2 pole, 26 amps - 30 amps submersible Motor (i) Supply of PVC insulated copper winding wire conforming IS 8783, 1995, part 4/ Sec 1 . Length of copper winding wire - max. 450 mts. i-c) 1.7 mm nom. Dia . For 20.0 HP

(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.

(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. 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

(f) Supplying, fitting and fixing stud bolt with nuts and washer for upper flange as per sample

(g) Supplying, fitting and fixing thrust bearing retainer as per sample

(h) Jointing water proof cable with the leads of the motor including soldering with requisite water proof insulation and proper jointing compound/Valcanized rubber tape so that prope water proof insulation is assured.

(i) Supplying, fitting and fixing s.s. slip of rotor shaft including removing out of the old one as per direction of the E.I.C.

(j) Supplying, fitting and fixing feroasbestos lining on the thrust plate as per direction of the E.I.C

(k) Supplying fitting and fixing axiat thrust plate of motor shaft including supplying of key etc. all complete as per direction of Engineer-in-charge i) 12.5 H. P. to 20 H. P.

(l) Supplying, fitting and fixing pivot segment steel balls on the thrust bearing housing as per direction of the E.I.C. ( 6 nos. in one set with rubber guarder/Circlip etc.) ii) 17.5 H.P. to 20 H.P.

(m) Supplying, fitting and fixing of (thrust bearing segment) Pivot segments (Set of 6) made from phosphorus bronze as per sample and as per direction of E.I.C. ii) 17.5 H.P. and above

(n) Supplying, fitting and fixing the self aligning thrust plate of the motor shaft including supplying of key etc. all complete as per direction of E.I.C.

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

Labour charges for checking up the dynamic balance of motor shaft for original alignment as per direction of the E.I.C.

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

(a) 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 and segregating all spares fitted with the pump including washing and cleaning the same thoroughly for verification of servicable and unservicable spares as per direction of the Engineer-in-Charge.

(a) Labour charges for re-assembling the submersible pump after completion of repairing spare etc. and allied works with repaired spares or new spares when necessary to be supplied departmentally which are not provided in schedule including screws, nuts, lubricating materials etc. as required as per direction of Engineer-in-Charge.

(a) Painting 2 (two) coats of both inner and outer portion of submersible pump with best quality synthetic enamel paint of approved make and brand including smoothening surface by sand papering after removal of old paint as per direction of Engineer-in-Charge.

(a) Repairing of stage bowl and other spares when necessary by welding, turning and rethreading including supplying and fitting, fixing new studs nuts, washers, impeller key, coupling key with lock nut complete as per direction of Engineer-in-Charge

(b) Repairing impeller by metallic gas/electric welding with gunmetal stick & turning, fitting, fixing in proper position as per direction of Engineer-in-Charge

(c) Supplying, fitting and fixing stainless steel shaft as per sample and approval of the Engineer-in-Charge

(d) Supplying, fitting and fixing G.M. sleeve to be fitted in the blowl bush/body bush suitable for specified R.P.M.

(e) Supplying, fitting and fixing the body (Bowl) Bush (Suitable for specified R.P.M. of pump (Motor set) as per direction of the Engineer-in-Charge. (two nos.)

(f) Supplying, fitting and fixing stainless steel pump coupling as per sample.

(g) Supplying, fitting and fixing steel sleeves with 2 Nos. S. S. Nut as per site and sample (two nos.)

(h) Supplying, fitting and fixing ceramic filter with circlip and rubber guarder (original of a particular make of pump)

(i) Supplying, fitting and fixing Impeller seal ring made of phosphorous

(j) Supplying, fitting and fixing sand guard made of Gun Metal as per direction of the Engineer-in-Charge

(k) Charges for repairing continuity test, insulation test by Megger no load gtest as per directioin of Erngineer-in-Charge

Installation of submersible electro motor pumping set of following capacities by using necessary requisite, tools and plants by lowering the same within the tubewell housing pipe upto the following depth as per direction by fitting, fixing column pipes and other accessories, fixtures with necessary nuts, bolts and washers and suspending the entire assembly of pump set vertically by fixing the same supported by M.S. clamps over the top of housing pipe, binding the motor cable with each column pipes and drawing cable upto pump controller/starter point including opening out of the top cap of housing pipe of the tubewell and testing of motor both in loading as well as in unloaded condition before and after installation of the same. (The rate is inclusive of hiring charges of tools & plants.) (a)100/150/200 cubic metre per hour capacity electro motor pumping set. (ii) Length of pump assembly of any length exceeding 18 metre length.

Withdrawal of electro motor submersible pumping set of following capacities from within the tubewell housing pipe of the following length by using all necessary requisites tools and plants and carefully as per direction of Engineer-in-Charge and stacking the same properly at site within the tubewell premises complete.(a) 100/150/200 cubic metre per hour capacity electro motor pumping set.(ii) Length of pump assembly of any length exceeding 18 metre length.

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

Deduction towards dismantled burnt enamelled copper wire from induction motor on the basis of actual measurement to be retained by the agency

Add GST @ 18%

Add Cess @ 1%

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