RETENDERCherathanali Lift Irrigation Project No -385/26

Repairs to 2 nos 50 HP Motor pump sets and providing electrical accessories

OD455595/2025-2026:Charges for dismantling the 30 HP motor, after disconnecting the electrical connection, decoupling the motor and pump lifting, leading by head load to the roadside from the base plate after decoupling motor and pump leading to road by head load, loading to the vehicle and convey the same to the nearest workshop.

OD455557/2025-2026:"Dismantling the 30 HP Squirrel cage induction motor into stator and rotor, replacing the damaged lead wires using suitable size fiber glass insulated copper wire soldering connections , cleaning the windings attending minor repairs, re taping the coils if necessary, varnishing the coils with best quality insulation varnish, cleaning and greasing the bearings with good quality grease, heating the windings, reassembling, refitting the motor in position coupling with pump correcting alignment and giving connection, test running with full load including scrapping, cleaning and painting the motor pump set, base plate etc. with enamel paint. "

OD455551/2025-2026:Charges for dismantling the 30 HP Split Case pump model C S N 100/125 taking out the impeller shaft assembly , conveying to nearest workshop and separating impeller into parts , welding and metaling damaged impeller vanes , grinding and levelling to correct measurement, dynamically balancing impeller to deliver water in full efficiency and designed total head , supply and renewal of CS/ SS haft , SS sleeve assembling pump set in complete shape , cleaning and greasing bearings, supply and providing fresh gland packings etc. complete and conveying back to the Pump house including transporting , loading and unloading etc.

OD455550/2025-2026:Supply of Ball Bearing No.6309 SKF or equivalent make.

OD455554/2025-2026:Supply of Ball Bearing No.6312 SKF or equivalent make.

2.1.4:Providing and fixing following capacity TP&N disconnector fuse switch unit inside the existing panel board with ISI marked HRC fuses including drilling holes in cubicle panel, making connections, etc. as required.125 Amp TP & N

OD455559/2025-2026:Supply and drawing 650/1100 V grade FRLS PVC insulated stranded single core copper conductor cables conforming to IS 694 part I 1990 in the existing surface / recess conduit as required including giving necessary connections of the following sizes.25 sq.mm 3 Run

1.21.4:Supplying and fixing of following sizes of medium class PVC conduit along with accessories in surface/ recess including cutting the wall and making good the same in case of recessed conduit as required.40 mm

1.21.5:Supplying and fixing of following sizes of medium class PVC conduit along with accessories in surface/ recess including cutting the wall and making good the same in case of recessed conduit as required.50 mm

90.12.24.2:Supply of superior quality copper tubular cable socket and making core termination of cables of the following sizes including crimping etc. as required.4 sq mm

90.12.24.6:Supply of superior quality copper tubular cable socket and making core termination of cables of the following sizes including crimping etc. as required.25 sq mm

5.4:Earthing with G.I. earth plate 600 mm X 600 mm X 6 mm thick including accessories, and providing masonry enclosure with cover plate having locking arrangement and watering pipe of 2.7 metre long etc. with charcoal/ coke and salt as required.

5.9:Supplying and laying 25 mm X 5 mm G.I strip at 0.50 metre below ground as strip earth electrode, including connection/ terminating with G.I. nut, bolt, spring, washer etc. as required.(Jointing shall be done by overlapping and with 2 sets of G.I. nut bolt & spring washer spaced at 50mm)

90.16.1.3:Supply and drawing bare earthing conductors of the following sizes along with wiring/ cables and giving connection as required3.15 mm copper conductor ( 10 SWG)

90.16.1.5:Supply and drawing bare earthing conductors of the following sizes along with wiring/ cables and giving connection as required4.75 mm copper conductor (6 SWG)

90.16.3.9:Supply and clamping the following size of strips on surface of wall/ parapet/ existing cable tray using clamps fabricated from 20 X 3 mm GI flat duly painted or heavy duty GI spacer saddles spacing of clamps not exceeding 1 m, making good the damages, colour washing etc. as required ( for horizontal run)25 x 3 mm copper strip

90.16.5.3:Supply of superior quality copper earth socket for the following size of earth conductor including crimping etc. as required.3.15 mm (10 SWG)

90.16.5.5:Supply of superior quality copper earth socket for the following size of earth conductor including crimping etc. as required.4.75 mm (6 SWG)

OD455777/2025-2026:Charges for dismantling the 200mm Nonreturn valve assembly, conveying to nearest workshop and reconditioning the shutter and valve seating after filling the same metal by welding, cutting, grinding and levelling to correct measurement, polishing the same and refit the NRV in pipe in good condition, including up and down conveyance charge.

OD456112/2025-2026:Charges for dismantling the 200mm Wheel Valve, leading to the nearest roadside loading to the vehicle and transporting to nearest workshop, reconditioning the valve gate and valve seating after filling the same metal by welding, cutting, grinding and levelling to correct measurement, polishing the same and refit the same in the pipeline in good condition, including up and down conveyance charge.

90.14.24.8:Supply & fixing the following Power Capacitors 3 phase delta connected in positon and giving connection.10 KVAr, 3 phase, 440 V, delta connected standard duty Metalised Poly Propylene Cylinderical Type Capacitor suitable for direct connection to motors.

OD456402/2025-2026:Supply and installation of, 125 A, 415 V, 50 Hz, AC 22 A duty, Tripple pole and Neutral on-load change over in sheet steel enclosure (Make - L & T, Siemens, Schneider) complete with handle assembly, door interlock and pad locking arrangement on existing angle iron framework or directly to wall using necessary bolts & nuts, fixing the unit to wall, making good the damages, colour washing etc. including giving necessary connections as required.

OD456537/2025-2026:Dismantling of old broken/damaged 200m PVC pipe in the delivery line including cutting the damaged portion and make good it using fresh pvc pipe.

OD456744/2025-2026:Labour charges for checking the tripping mechanism, replacing the damaged wires, attending minor repairs, painting, refitting and reconnecting, including renewal of damaged contacts, no volt coil etc and make the starter in good condition.

90.14.5:Supply and fabrication conveyance and installation of angle iron frame work for wall mounting panel board

OD462049/2025-2026:Supply, conveyance, Installation, testing and commissioning of suitable size oil immersed stator rotor starter suitable for 30HP Slip Ring Induction motor including supply of require level of good quality transformer oil (Make - Kilburn/ MEI/Kaveri) with separate 125A isolator, floor stand etc, as per the depertmental standards & specifications.

OD462773/2025-2026:"Chargers for detaching the slip ring unit of the motors, reconditioning it by cutting, shaping and polishing the rollers checking the brush carrier assembly, adjusting the spring tension, checking and resetting the unit in good condition "

OD462882/2025-2026:"Supply and renewal of carbon brush of 30HP Slip Ring Induction Motor

OD462896/2025-2026:Supply and renewal of coupling bolt and nut with coupling bush suitable for the 30 HP motor pump set in place of damaged one