Operation and Maintenance of heavy duty electrically driven Mixed Flow dewatering pumps of Mora-Bharalu, Lakhimijan, Pandu and Sadilapur Pumping Station

Amount

Charges for operation of MF 55-60 (170 HP) pumps both Mechanical & Electrical operations with roster duty of specialized workers for 24 hours a day complete. (for five months from 1st June to 30th October ,2025) at Mora Bharalu, Pandu & Sadilapur Pumping Stations.

Charges for operation of MF 60-65 (380 HP) pumps both Mechanical & Electrical operations (during the period from June to October,2025) with roster duty of specialized workers for 24 hours a day complete at Lakhimijan Pumping Station

Charges for clearance of garbages from the suction area including suction pipe of pumps for uninterrupted suction by the pumps during the period of operations (for five months from 1st June to 30th October, 2025) at Mora Bharalu, Pandu & Sadilapur Pumping Stations.

Charges for clearance of garbage’s from the suction area including suction pipe of pumps for uninterrupted suction by the pumps during the period of operations (June to October 2025) at Lakhimijan Pumping Station.

Charges for running maintenance of main Electrical Panel board connected to 125 kw motors of 170 HP MF 55-60 Pumps and equipped with vacuum pump, butterfly valve, capacitor, temperature gauge, etc. control system of installed pumps including replacement of parts (to be supplied by Deptt.) those may required for maintenance including dismantling & refitting of components and supply of all perishable items complete at Mora Bharalu, Pandu & Sadilapur Pumping Stations.

Charges for running maintenance of main Electrical Panel board connected to 275 kw motors of 380 HP MF 60-65 Pumps and equipped with vacuum pump, butterfly valve, capacitor, temperature gauge, etc. control system of installed pumps including replacement of parts (to be supplied by Deptt.) those may required for maintenance including dismantling & refitting of components and supply of all perishable items complete at Lakhimijan Pumping Station

Charges for dismantling , checking , repairing of following pumps ( spares to be supplied by deptt) including supply of all perishable items and refitting the same complete with testing - MF 55-60 pump( 170 hp) at Mora Bharalu, Pandu & Sadilapur Pumping Stations.

Charges for dismantling, checking, repairing & running maintenance of 10HP vacuum pump with electric motor, coupling and priming line etc. including replacement of parts those may be required for maintenance & refitting of components of all perishable items complete (Spares to be supplied by Deptt.) at Mora Bharalu, Lakhimijan, Pandu & Sadilapur Pumping Stations.

Repairing and maintenance of 800NB Non-Return Valve including supply of Hinge pin, cover gasket suspension pin etc. and refitting the same complete with testing at Pandu Pumping Station.

Charges for Dismantling, checking & testing of 2 (two) nos. 400 KVA , 11/0.433 KV, 3- phase, 50 Hz, Outdoor type, HV & LV for 4 star, BIS Level-2 Transformers as per following repairing & maintenance work to complete as directed at Mora Bharalu Pumping Station ( including dismantling, transportation and reinstallation of Transformer ) (i) Opening of transformer new gasket sets, transformer cover , conservator tank , explosion vent pipe, L. T & H.T terminals etc. (ii) Fitting and winding of H.V. & L.V coil (copper wound) after re-insulation of conductor and with new interlayer insulation complete. (iii)Fitting of H.V. stud. & Bushing (copper wound) , Ratio Switch, including making of primary & secondary core-coil assembly with all connections after servicing, varnishing, heat curing etc. (iv) Cleaning and painting works of two numbers transformer, tank surfaces both outside and inside complete as directed. (v) Testing , closing of Transformer including changing of gasket sets etc. & filling up specified Transformer Oil to permissible level for maximum operational efficiency

(i) Checking & testing of 500 KVA ,11/0.433 KV,3 –phase,50 Hz , Outdoor type, HV & LV for 4 star, BIS Level -2 Opening of transformer new gasket sets, transformer cover , conservator tank , explosion vent pipe, L. T & H.T terminals etc. (ii)Fitting of H.V. stud. & . Bushing (copper wound) , Ratio Switch, including making of primary & secondary core-coil assembly with all connections after servicing etc., Cleaning and painting works of transformer, tank surfaces both outside and inside complete as directed. Testing, closing of Transformer including changing of gasket sets etc. & filling up specified Transformer Oil to permissible level for maximum operational efficiency.

RC fuse 2 amp

Asbestos Gland Packing of Size : 1”

Asbestos Gland Packing of Size : 1½”

Nylon rope

Cotton Waste

Lubricating oil for bushing housing

Gear oil for gear box

Transformer oil

Grease

PVC insulated tape Y/ B / R

MNX 32A 3 Pole Power Contactor

11 KVA Barrel

11 KVA barrel Fuse

Phase indicator lamp with protection fuse (Red/blue/green/yellow)

HRC fuse reputed make- 400 AMP

100 A Semiconductor Fuse

Push Button , start & stop

11 KV DO FUSE-150 AMP for 11KV substation

32 A, TP Switch fuse unit

630 A TP Isolator

6A TP MCB

Auxiliary contact and alarm contact

11 KV insulator with G.I. pin

11 KV Gang operated switch, 150 AMP for 11 KV Substation

Star-Delta Starter 80 HP of reputed make

Supply & installation of 11 KV Gang operated (GOAB ) Switch,150 Amp for 11 KV sub- station.

Tube light complete assembly

Enamel Paint

Earthwork in desiltation of drainage channel to proper grade and slope upto required section including excavation of slide slopes and bed of the channel in marshy /muddy soil, removal of all debries like decomposed organic matters, plastic garbage, aquatic plants,, water cyanith etc. dewatering by manual means if necessary etc and removing of the excavated soil and garbage/spoils upto a distance of 100 m etc. including all lead and lift complete as directed.

Dismantling roofing including ridges , hips, valleys and gutters etc and stacking the material within 50 metres lead of G.S. Sheet

Providing corrugated G. S sheet roofing including vertical /curved surface fixed with polymer coated J or L hooks , bolts & nuts 8mm diameter with bitumen and GI limpet washers or with GI limpet washers filled with white lead , including a coat of approved steel primer and two coats of approved paints on overlapping of sheets complete (upto any pitch in horizontal / vertical or curved surfaces) excluding the cost of purlins, rafters and trusses and including cutting to size and shape wherever required. 0.63mm thick with zinc coating not less than 275gm/sqm

Providing ridges or hips of width 60 cm overall width plain G.S sheet fixed with polymer coated J or L hooks , bolts and nuts 8mm dia GI limpet and bitumen washers complete . 0.63mm thick with zinc coating not less than 275gm/sqm

Ordinary labours for painting works of suction and delivery pipeline, opening and closing of sluice gate, filling of vacuum pump priming tank, opening and clearing of suction, permanent watch keeping duty & other various miscellaneous works during operation of MF pumps. (May to October, 25.) at Mora Bharalu, Lakhimijan, Pandu & Sadilapur Pumping Stations.

SRI DINESH BORAH (BID ID -259101)

PARIJAT ENTERPRISE (BID ID -259121)

SRI HITESH KALITA (BID ID -259411)

M/S K.B. ENGINEERS (BID ID -259073)

M/S R.M. ENTERPRISE (BID ID -259116)

PRAKASH ENTERPRISES (BID ID -259559)