SPECIAL REPAIR TO EARTHING PITS AT 1 WING AF RINAGAR

Amount

Renewal of existing earthing (GI earth plate earthing) by digging out whole material such as GI pipe GI wire/GI strip, GI earth plate and other material. Cleaning the pit and keeping the same ready for fresh earthing. Serviceable material such as GI earth plate shall be kept separately for reuse other material such as unserviceable GI earth plate & GI earthing wire shall be kept separately and same will be issued to contractor as credit. Surplus earth/material shall be disposed of to a distance not exceeding 50 metre as directed by Engr-in-Charge. Note : Cleaned earth pit shall not be less than 2.25 metre deep below ground level.

Material and labour for earthing complete with galavanised steel earth plate electrode of size 60mm x 600mm x 6mm thick buried directly in ground (earth pit not less than 2.25m deep below gound level with top edge of the earth plate not less than 1.5 m below normal gound level connected to galvanised steel earth strip of size 32x6 mm by means of bolts, nuts, check nuts and washers of galavanised iron/steel and conneted to main control board as directed and including proivison of concrete pit in PCC (1:2:4) type B1 pre cost RCC earth pit cover reinforced with 8 mm dia TMT bars @ 150mmc/c of size 54cmx54cmx8cm with two handle for lifting made out of 8mm dia MS bar, provision of funnel, wire mesh, 20mm bore galavanised steel tubing (med grade) for watering. Charcoal 250 Kg and salt 200 Kg in alternate layers, 40mm bore galavanised steel tubing light grade for protection of earth lead connection necessary excavation and earth work measured and paid in item No 1 and including necessary testing complete all as shown on electrical plate No 3 of SSR Part-I Note : Earth strip and protection pipe upto test point i.e upto 7.5 RM is included in the unit rate of this item contractor shall quote his rate accordingly. Watering pipe funnel with wire mesh will be mesured and paid seperately under approprate item of sch 'A

Material and labour for earthing complete with galavanised steel earth plate electrode of size 60mm x 600mm x 6mm thick (serviceble earth plate obtain from Ser Item No 1 to be used) buried directly in ground (earth pit not less than 2.25m deep below gound level with top edge of the earth plate not less than 1.5 m below normal gound level connected to galvanised steel earth strip of size 32x6 mm by means of bolts, nuts, check nuts and washers of galavanised iron/steel and conneted to main control board as directed and including proivison of concrete pit in PCC (1:2:4) type B1 pre cost RCC earth pit cover reinforced with 8 mm dia TMT bars @ 150mmc/c of size 54cmx54cmx8cm with two handle for lifting made out of 8mm dia MS bar, provision of funnel, wire mesh, 20mm bore galavanised steel tubing (med grade) for watering. Charcoal 250 Kg and salt 200 Kg in alternate layers, 40mm bore galavanised steel tubing light grade for protection of earth lead connection necessary excavation and earth work measured and paid in item No 1 and including necessary testing complete all as shown on electrical plate No 3 of SSR Part-I Note : Earth strip and protection pipe upto test point i.e upto 7.5 RM is included in the unit rate of this item contractor shall quote his rate accordingly. Watering pipe funnel with wire mesh will be mesured and paid seperately under approprate item of sch 'A'.

Renewal of existing earthing (Copper earth plate earthing) by digging out whole material such as GI pipe, Copper wire/Copper strip, Copper earth plate and other material. Cleaning the pit and keeping the same ready for fresh earthing. Serviceable material such as GI earth plate shall be kept separately for reuse other material such as unserviceable GI earth plate & GI earthing wire shall be kept separately and same will be issued to contractor as credit. Surplus earth/material shall be disposed of to a distance not exceeding 50 metre as directed by Engr-in-Charge. Note : Cleaned earth pit shall not be less than 2.25 metre deep below ground level.

Material and labour for earthing complete with copper earth plate electrode of size 60mm x 600mm x 3mm thick buried directly in ground (earth pit not less than 2.25m deep below gound level with top edge of the earth plate not less than 1.5 m below normal gound level connected to copper earth strip of size 32x3mm by means of bolts, nuts, check nuts and washers of copper and conneted to main control board as directed and including proivison of concrete pit in PCC (1:2:4) type B1, pre cost RCC earth pit cover reinforced with 8 mm dia TMT bars @ 150mmc/c of size 54cmx54cmx8cm with two handle for lifting made out of 8mm dia MS bar, provision of funnel, wire mesh, 20mm bore galavanised steel tubing (med grade) for watering. Charcoal 250 Kg and salt 200 Kg in alternate layers, 40mm bore galavanised steel tubing light grade for protection of earth lead connection necessary excavation and earth work measured and paid in item No 4 and including necessary testing complete all as shown on electrical plate No 3 of SSR Part-I Note : Earth strip and protection pipe upto test point i.e upto 7.5 RM is included in the unit rate of this item contractor shall quote his rate accordingly. Watering pipe funnel with wire mesh will be mesured and paid seperately under approprate item of sch 'A'.

Material and labour for earthing complete with copper earth plate electrode of size 60mm x 600mm x 3mm thick (serviceble copper earth plate obtain from Ser Item No 1 to be used) buried directly in ground (earth pit not less than 2.25m deep below gound level with top edge of the earth plate not less than 1.5 m below normal gound level connected to copper earth strip of size 32x3 mm by means of bolts, nuts, check nuts and washers of copper and conneted to main control board as directed and including proivison of concrete pit in PCC (1:2:4) type B1 pre cost RCC earth pit cover reinforced with 8 mm dia TMT bars @ 150mmc/c of size 54cmx54cmx8cm with two handle for lifting made out of 8mm dia MS bar, provision of funnel, wire mesh, 20mm bore galavanised steel tubing (med grade) for watering. Charcoal 250 Kg and salt 200 Kg in alternate layers, 40mm bore galavanised steel tubing light grade for protection of earth lead connection necessary excavation and earth work measured and paid in item No 4 and including necessary testing complete all as shown on electrical plate No 3 of SSR Part-I Note : Earth strip and protection pipe upto test point i.e upto 7.5 RM is included in the unit rate of this item contractor shall quote his rate accordingly. Watering pipe funnel with wire mesh will be mesured and paid seperately under approprate item of sch 'A'.

Renewal of existing chemical earthing (Copper earth plate earthing) by digging out whole material such as GI pipe, Copper wire/Copper strip, Copper earth plate and other material. Cleaning the pit and keeping the same ready for fresh earthing. Serviceable material such as GI earth plate shall be kept separately for reuse other material such as unserviceable GI earth plate & GI earthing wire shall be kept separately and same will be issued to contractor as credit. Surplus earth/material shall be disposed of to a distance not exceeding 50 metre as directed by Engr-in-Charge. Note : Cleaned earth pit shall not be less than 4.5 metre deep below ground level.

Material and Labour for providing chemical earthing complete with copper earth plate electrode of size 60cmx60cmx3mm thick burried directly in groud (earth pit not less than 4.5 mtr deep below ground level) with top edge of plate not less than 3.7 meter below normal ground level connected to copper earth lead size 32x3 mm by means of bolts, nuts, check nuts and washers of copper and conneted to main control board as directed with and including proivison of concrete pit in PCC (1:2:4) type B1 pre cost RCC earth pit cover reinforced with 8 mm dia TMT bars @ 150mmc/c of size 54cmx54cmx8cm with two handle for lifting made out of 8mm dia MS bar, provision of funnel, wire mesh, 20mm bore galavanised steel tubing (med grade) for watering. Charcoal 250 Kg, Magnesuium Sulphate Crystal 100Kg and Salt 200 Kg in alternate layers, 40mm bore galavanised steel tubing light grade for protection of earth lead connection necessary excavation and earth work measured and paid in item No 7 and including necessary testing complete all as shown on electrical plate No 3 of SSR Part-I Note : Earth strip and protection pipe upto test point i.e upto 7.5 RM is included in the unit rate of this item contractor shall quote his rate accordingly. Watering pipe funnel with wire mesh will be mesured and paid seperately under approprate item of sch 'A'.

Material and Labour for providing chemical earthing complete with copper earth plate electrode of size 60cmx60cmx3mm thick (serviceble earth plate obtain from Ser Item No 7 to be used) burried directly in groud (earth pit not less than 4.5 mtr deep below ground level) with top edge of plate not less than 3.7 meter below normal ground level connected to copper earth lead size 32x3 mm by means of bolts, nuts, check nuts and washers of copper and conneted to main control board as directed with and including proivison of concrete pit in PCC (1:2:4) type B1 pre cost RCC earth pit cover reinforced with 8 mm dia TMT bars @ 150mmc/c of size 54cmx54cmx8cm with two handle for lifting made out of 8mm dia MS bar, provision of funnel, wire mesh, 20mm bore galavanised steel tubing (med grade) for watering. Charcoal 250 Kg, Magnesuium Sulphate Crystal 100Kg and Salt 200 Kg in alternate layers, 40mm bore galavanised steel tubing light grade for protection of earth lead connection necessary excavation and earth work measured and paid in item No 7 and including necessary testing complete all as shown on electrical plate No 3 of SSR Part-I Note : Earth strip and protection pipe upto test point i.e upto 7.5 RM is included in the unit rate of this item contractor shall quote his rate accordingly. Watering pipe funnel with wire mesh will be mesured and paid seperately under approprate item of sch 'A'.

Supply and Fixing in repair CI funnel with wire mesh made as specified in SSR part-1 electrical plate no.3 fixed with GI pipe of watering by welding or threading etc. complete all as specified and as directed.

Material and Labour for earthpit chamber (Size of pit 300X300X300mm thickness 50 mm) PCC(1:3:6)type C1 (using 20 mm graded black trap/granite/stone aggregate) for earth pit ith 40X40x6 mm mild steel angle iron frame for cover ,precast RCC (1:2:4) type B1(using 20mm graded black trap/granite/stone aggregate) 40 mm thick cover reinforced with 6 mm dia bars 3 nos both way with 12 mm dia round bar handle as specified in SSR part 1 electrical plate no.including taking out broken pits and deposited as directed place and marker made out of 1.6 mm thick MS plate (30X30cm size welded with 12 mm dia roung MS bar incl painting with one coat of red oxide primer and two coat of synthetic enamel paint and writing the earth pit no. and result as directed. complete all as specified and directed.

Supply and fixing test point terminal block made of gun metal or phosphorus bronze size 75X75X25 mm , drilled and screwed including 3 Nos , 8mm dia 25 mm long hex head screw complete all as specified and directed by Engg-in-charge.

Supply and Fixing in repair Air termination single pointed aluminium rod not less than12 mm dia and 300 mm long including fixing arrangements all as specified.

Supply and Fixing in repair Air termination single pointed copper rod not less than12 mm dia and 300 mm long including fixing arrangements all as specified.

Double wall corrogated high density polythelene pipes (HDPE) confirm to IS 1490 laid in trenches for protection of earth lead 40 mm dia of pipe all as specified and as directed.

Material and Labour for brazing for copper strip joint any size and thick complete all as specified and as directed.

Material and Labour for welding of GI strip joint any size and thick complete all as specified and as directed.

Material and Labour for brazing of alluminium strip joint any size and thick complete all as specified and as directed.

Refixing the hanging of GI/Copper/Alluminium strip with porcelin insulator saddles, screws etc complete all as specified and as directed.

Supply and Fixing PVC post insulator suitable for mounting of GI/Copper strip of 32x6mm or 25x3mm incl GI/Copper nut bolts as site requirement etc complete as specified and directed by Engr-in-Charge

Supply and Fixing gate valve /glob valve 20 mm dia cast copper alloy screwed on high pressure with curtch or butterfly handle screwed both ends for fixing the GI Pipe or for union socketetc complete all as specified and as directed.

Supply and Fixing PVC bib tap internally threaded ISI marked suitable for 15 mm bore dia GI pipe with nipple etc. completed all as specified and directed .

Material and Labour for cutting existing GI/CI pipe line of size 50/80/100 mm dia pipe and making new connection incl all fittings and joints as required at site completed all as specified and as directed.

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 earthig etc, as required galvanized iron wire 4mm dia,complete all as specified and directed.

Supply and Fixing GI strip 25x4 mm with porcelain insulators, saddles and fixing screws etc. for roof conductors and down conductors complete all as specified and directed.

Supply and Fixing copper strip 20 x 3 mm with procelain insulators, saddles and fixing scres etc for roof conductors and down conductors complete all as specified and directed.

Supply and Fixing aluminium strip 25 x 3 mm with procelain insulators, saddles and fixing screws etc for roof conductors and down conductors complete all as specified and directed.

Supply and Fixing in repairs GI tubing 15 mm bore medium grade with all fittings in earthing for watering the earth complete all as specified and directed.

Supply and Fixing in repairs GI tubing 20 mm bore medium grade with all fittings in earthing for watering the earth complete all as specified and directed.

Supply and Fixing in repairs GI tubing 40mm bore medium grade with all fittings in earthing for watering the earth complete all as specified and directed.

M/S VALLEY ENTERPRISES

M/s Jaipal Associates

M/S MIR AND CO

M/S Abdul Ahad Rather

M/S Noor Mohammad Shalla

M/S BASHIR AND SONS

M/S Sky Engineers