REPAIR MAINT OF FUEL STORAGE SYSTEM AND PROPER LAYING OF CABLES IN DUSTS AT POWER HOUSE NO 5 AND CONNECTED ITEMS AT AF STN SINGARSI UNDER AGE I AF SINGARSI

Amount

M&L for cleaning and removing accumulated sludge on of inner surface of Fuel tank of capacity 1000 Ltrs through suitable treatment Ultraviolet ray or equivalent. Stages are as under :- (a) First stage is to drain out the fuel by using exit valve or using high capacity defuellilng system and storing the fuel in any other container. (b) Second stage is removing accumulated sludge, water and other debris from tank to maintain fuel qualityinside the tank by using latest technology and scrubbing the wall of the tanks. (c) Third stage is applying protective coating and linings to prevent corrosion and extend the life of tank (d) Fourth stage is checking and implementing leak detection and repair if any required to prevent leakage. (e) Fifth stage is cleaning the floor of the fuel tank by industrial vaccum cleaner (f) Cleaning of external surfaces, lid wall of the tank, structure for all scales and other particles any scraping of old paint and painting with two coats of flame resistant suitable paint (j) A sticker of appropriate size and colour as directed by Engr in Charge and non degradeable material with printed details as under :- Date of Cleaning and Fuel tank will will be painted

M&L for making arrangements for fixing of fuel level indicator scale type for tank of capacity 1000 Ltr and tank size 1 cum. Fuel level shall be clearily viisble outside the tank all complete all as per direction of Engr-in-Charge.

Dismantling of 1/.05 HP fuel monoblock type motor with pump from foundation base plate after discconection of electric connection and unbolting. Loading/unloading the motor with pump to vehicle and transportation of the motor with pump from Singarsi (Air Force Station) to workshop (out site ) for repair / replacement, open the motor and cutting the burnt winding and clean the rotor & stator with CTC or other cleaning agent and re-winding of stator winding with super enamelled copper wire of gauge and turn as per existing, insulating the leads with insulating tubes and varnishing the stator with good quality of insulating varnish and after that, heating the stator in heat chamber for continuous two days for better insulation resistance. Re-assembling the motor with pump carefully after replacement of worn out bearings as per existing and again transportation of the motor through vehicle from workshop (Pakur/ Nalhati/Dumka/Kolkata etc) to Singarsi (Air Force Station) including loading/unloading the motor on its base frame, connection of motor with pump with tyre coupling and fixing to the base frame by bolts incl super enamelled copper wire of existing gauge / size / quality to match with the existing as comply with Indian Standard Specification.. After checking up the alignment, testing of motor with megger for checking of insulation resistances, electric connection of motor to the control panel, testing on load for continous running for three hours complete all as specified and directed by Engr-in-Charge. only).

S&F in repair fuel filling flexible delivery hose pipe of size 1" suitable for fuel filling, internally wired and leak proof including provison of clamps, nuts and bolts complete fixed to fuel motor outlet all, complete all as per directions of Engr-in-Charge

M&L for taking out cable laid in ducts at power house No 5 and relaying the cable duly labelled, checking of cable for any damage and cleaning of cable ducts for any unwanted materials and then relaying of cables with proper protection all complete. Note : Sand for cable protection will be measured and paid seperately,

M&L in repair for Foot Valve stainer brass end 25 mm Dia ISI Marked brass made, complete all as specified and as directed.

M&L in repair for Gun matel foot Valve brass end 25 mm Dia ISI Marked brass made, complete all as specified and as directed.

S&F in repair gun metal gate valvesof size 25 mm with iron wheel head, screwed both end for iron pipe following bore of pipes, complete all as specified and as directed .

S&F in repair MS frame work for cable duct framework conforming to fe-290(Gde-E-165), cut to shape, drilled, including bending and welding in any shape of size,Complete all as specified and as directed.(Inclusive of steel sheeting or other covering,running rails and guide).

M&L for painting on new steel surfaces using two coat of synthetic enamel paint (first quality) over a coat of red oxide primer complete including make good of surface by PCC for proper closing / opening of chamber cover all as specified and directed for valve pit covers, complete all as specified and as directed .

Supply,lay,connect and commission in repair LT underground cable XLPE of size 150 sqmm 3.5 core insulated screened PVC bedded galvanised steel strip armoured heavy duty with multi stranded aluminium conductor 1100 volts grade (ISI) marked laid in trenches, ducts, pipes or fixed on pole etc,complete all as specified and as directed .

Excavtion in trenches n.exc 1.5 meter wide and n. exc 1.5 meter in depth for foundation etc or for laying of cable etc and getting out in soft/loose soil, complete all as specified and as directed .

Supply and laying new dry river sand laid in trenches 8 cm below the cable and 15cm above the cable and punned to 18 cm as cable cushioning and covering complete all as specified and as directed .

Supply and laying in replacement of brick well burnt locally available sub class 'B' laid over sand cushioning for cable protection in trenches width of brick perpendicullar to the length of cable including taking up of old UNSV bricks, complete all as specified and directed by Engr-in-Charge.

Returning filling in including spreading levelling watering and well ramming in layers n.exc 25 cm depth, complete all as specified and as directed .

Removing of excavated material (soil) to a distance n.exc 50 meter and depositing where directed at a level n.exc 1.5 meter above the starting point, complete all as specified and as directed .

M&L for GI pipe "medium grade " ISI marked with a laid in trenches for road crossing, making good the disturbed surface as earlier of 80 mm dia size all, complete all as specified and as directe.

S&F in repair ON LOAD change over switch 415V in sheet metal enclosures 4 pole of capacity 400 Amps, complete all as specified and as directed.

DANATION CONSTRUCTIONS (BID ID -3332753)

P .BANERJEE AND CO (BID ID -3333359)

M/S SINGH ENTERPRISE (BID ID -3332761)

M/S MBS TRADING CO (BID ID -3333142)

M/S Subhadip Enterprise (BID ID -3332825)

M/S New Builders Corporation (BID ID -3333525)

M/S AMARNATH AGARWALLA (BID ID -3334127)