REPAIR/MAINT OF DISTRIBUTION BOARDS, LIGHTENING CONDUCTOR AND ALLIED WORKS AT POWER HOUSE NO 1 UNDER GE PANAGARH

Amount

Supply and fix Air termination, single pointed Aluminium rod 12mm dia and 300mm long , fixing over 1.5mm dai GI light grade pipe of ht 1.5 m with nut and bolt after taking down exisitng one complete all as specified and directed.

Supply and fix Air termination, single pointed copper rod 12mm dia and 300mm long, fixing over 1.5mm dai GI light grade pipe of ht 1.5 m with nut and bolt after taking down exisitng one complete all as specified and directed.

S& F in repair test point terminal block made of gun metal or phosphorus bronze size 75x75x25mm drilled and screwed including 3 nos. 8mm dia 25mm long hex. head screw complete all as specified and directed.

M&L for earth continuity conductor of 20 x 3.15mm copper strip fixed to wall on batten or recess or chases or burried in ground or drawn in conduit/pipe or any other indicated situation for loop earthing etc,incl taking out old unserviceable copper earth strip, complete all as specified and directed.

M&L for earth continuity conductor of 32 x 6mm galvanised iron strip fixed to wall on batten or recess or chases or burried in ground or drawn in conduit/pipe or any other indicated situation for loop earthing etc,taking out old unserviceable iron earth strip, complete all as specified and directed.

S & F earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc. as required 25x4mm dia galvanised iron or steel wire including taking down exisitng one etc, complete all as specified and directed.

S & F Earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc. as required 25x3mm dia aluminium strip including taking down exisitng one etc, complete all as specified and directed.

M&L for brazing/gas welding for existing copper earthing strip joints by removing nuts and bolts complete all as specified and directed.

S&F 40 mm bore galvanised steel tubes light grade, with all fittings and fixed complete to walls and ceiling or laid in floors/ PCC foundation pillar ,complete all as specified and directed

M & L for making holes in brick/stone/PCC block wall masonary in building for passing of earhting strip incl making good to match existing surface, complete all as specified and directed.

supply and fixing low density polythelene pipes (LDPE) 40mm dia for insulation of earth strip from building at entry points ,incl taking out old u/s LDPE pipes complete all as specified and directed.

supply and fixing white porcelain ceramic insulator with nut, bolt and washers for fixing earthing strip on wall/ceiling/roof ,incl taking out old unserviceable porcelain ceramic insulator ,complete all as specified and directed.

M & L for PCC 1:3:6 type C-1( using 20 mm graded stone aggregate) for PCC of size 0.25m x0.25m x 0.25 m cube with MS ferule for mouting GI pipe 25 mm dia etc, complete all as specified and directed.

Supply and fix in repair epoxy powder coated sheet metal enclosure for DBs, double door (when MCBs to be used), Single pole and neutral 240 V, 8 ways with mounting fitted with bus bar, DIN channel , neutral link and incoming contact ,complete all as specified and directed.

Supply and fix in repair MCB SPN 6 to 32 Amps, 'C' series 10kA, 240 Volts and to be housed in DBs complete including necessry connection complete all as specified and directed. (Note :- Proper and suitable size cable lugs to be fixed with MCB are included in unit rate of each MCB of any rating).

Supply and fix in repair MCB SP, 6 to 32 Amps, 'C' series 10kA, 240 Volts and to be housed in DBs including necessry connection complete complete all as specified and directed. (Note :- Proper and suitable size cable lugs to be fixed with MCB are included in unit rate of each MCB of any rating).

Material and labour for earthing complete with galvanised mild steel earth plate electrode 600x600x6.0mm thick, burried directly in ground to a depth not less than 2.25 metres deep below ground level with top edge of earth plate not less than 1.5 metre below normal ground level surrounded with adequate quantity of charcoal dust mixed with salt to a packed thickness of 15 cm all around the plate, using galvanised iron strip 25×4mm as earth strip electrode bolted or rivetted to earth plate at one end and connected to equipments at another end, GI earth strip encased in and including 40 mm dia GI 'light grade' pipe from upper end of earth plate upto equipments,20 dia bore GI pipe 'light grade' as water pipe from earth chamber to upper edge of earth plate, Test point , GI funnel with wire mesh fixed on water pipe and PCC 1:2:4 type B-1 (using 20mm graded stone aggregate) as in pit chamber and RCC pit cover 50mm thick precast RCC 1:2:4 type B-1, duly reinforced with MS round bars 6mm dia @ 100 c/c both ways with 10mm dia MS round bar as in lifting handles, excavation, earth work including laying the GI pipe concealed in floor/wall all as described in electrical plate No 3 of SSR Part I, complete all as specified and directed and testing on completion. Note :- (i) If the desired earth resistance is not found, earthing shall be redone by the contractor at no extra cost to the department. (ii) Testing to be carried out by the contractor in presence of Engr- in- Charge , entered in the eath testing register, prepared and to be maintained by the contractor & submited to Concerned JE E/M. (iii) T&P and testing instrument(Meger) to be provided by the contractor at own cost.

Material and labour for earthing complete with galvanised mild steel earth plate electrode 600x600x6.0mm thick, burried directly in ground to a depth not less than 2.25 metres deep below ground level with top edge of earth plate not less than 1.5 metre below normal ground level surrounded with adequate quantity of charcoal dust mixed with salt to a packed thickness of 15 cm all around the plate, using galvanised iron strip 32×6mm as earth strip electrode bolted or rivetted to earth plate at one end and connected to equipments at another end, GI earth strip encased in and including 40 mm dia GI 'light grade' pipe from upper end of earth plate upto equipments,20 dia bore GI pipe 'light grade' as water pipe from earth chamber to upper edge of earth plate, Test point , GI funnel with wire mesh fixed on water pipe and PCC 1:2:4 type B-1 (using 20mm graded stone aggregate) as in pit chamber and RCC pit cover 50mm thick precast RCC 1:2:4 type B-1, duly reinforced with MS round bars 6mm dia @ 100 c/c both ways with 10mm dia MS round bar as in lifting handles, excavation, earth work including laying the GI pipe concealed in floor/wall all as described in electric plate no. 3 of SSR Part I, complete all as specified and directed and testing on completion. Note :- (i) If the desired earth resistance is not found, earthing shall be redone by the contractor at no extra cost to the department. (ii) Testing to be carried out by the contractor in presence of Engr- in- Charge , entered in the eath testing register, prepared and to be maintained by the contractor & submited to Concerned JE E/M. (iii) T&P and testing instrument(Meger) to be provided by the contractor at own cost.

ANSH CONSTRUCTION

SARASWATI ENTERPRISE (INDEX NO CEEC D-81)

MS kesh and co