REPAIR MAINT OF CONVENTIONAL EARTHING CHEMICAL EARTHING LIGHTENING ARRESTOR AND CERTAIN EM WORKS AT AF STATION SURATGARH

Amount

BOQ (REPAIR/MAINT OF CONVENTIONAL EARTHING/CHEMICAL EARTHING, LIGHTENING ARRESTOR AND CERTAIN E/M WORKS AT AF STATION SURATGARH )

Material & labour for earthing with Galvanised Steel earth plate electrode 60cm x 60cm x 6.00mm thick buried directly in ground vertically at a depth not less than 2.25metre below normal ground level with top edge of earth plate at a depth not less than 1.5 metre below normal ground level, earth plate surrounded from all sides by 15cm thick packed layer of charcoal dust and common salt filling in alternate layers and electrode connections by using Galvanised Iron strip of 32 x 6 mm as earthing lead (upto the body of the equipment) by means of bolts, nuts, check nuts and washers made of galvanised iron and thimbles and protected by light grade 40mm dia GI pipe connected up to main DB/LT Panel /Test point and GI pipe medium grade 20mm bore for watering and including funnel , wire mesh , RCC pit cover and PCC chamber pit with PCC (1:3:6) type C-2 using 40mm graded stone aggregate, including excavation and earth work in any type of soil , returning , filling in approved soil and disposal of surplus soil to a distance not exceeding 50m all as specified and shown in electrical plate No 3 of SSR 2009 (Part-I), including takingdown old unserviceable eathing material complete all as specified and directed.

Material & labour for earthing with Galvanised Steel earth plate electrode 60cm x 60cm x 6.3mm thick buried directly in ground vertically at a depth not less than 2.25metre below normal ground level with top edge of earth plate at a depth not less than 1.5 metre below normal ground level, earth plate surrounded from all sides by 15cm thick packed layer of charcoal dust and common salt filling in alternate layers and electrode connections by using GI wire 4mm dia as earthing lead (upto the body of the equipment) by means of bolts, nuts, check nuts and washers made of galvanised iron and thimbles and protected by light grade 40mm dia GI pipe connected up to main DB/LT Panel /Test point and GI pipe medium grade 20mm bore for watering and including funnel , wire mesh , RCC pit cover and PCC chamber pit with PCC (1:3:6) type C-2 using 40mm graded stone aggregate, including excavation and earth work in any type of soil , returning , filling in approved soil and disposal of surplus soil to a distance not exceeding 50m all as specified and shown in electrical plate No 3 of SSR 2009 (Part-I), including takingdown old unserviceable eathing material complete all as specified and directed.

M&L for removing normal earthing and M&L for commissioning, installation and testing of maintenance free UL approved copper bonded earth rod of 10 feet length, 17.2 mm dia. made of high tensile low carbon steel rod , molecularly bonded with 99.9% electrolytic grade copper on outer surface ( minimum copper bonding thickness - 250 microns) with exothermally jointed copper bus bar of 50 X 6 X 200 mm for connection. The rod and exothermic joint together successfully tested at 25 KA fault current by CPRI with 50 Kg eco friendly earth enhancing compound with each earth rod. The earth pit should be 125 mm dia. the compound should comply to IEC:62561-7 having passed leaching, corrosion, sulphur and resistivity test as per IEC: 62651-7 by NABL accredit Lab with FRP earth pit cover of top size lockable Lid. It includes GI Protection pipe light grade of size 40 mm dia. with copper strip of size 32 x 6 mm upto test point, strip should be run on PCC block of suitable size upto wall to avoid touching to ground complete all as specified and directed by Engr-in-Charge. Make JMV LPS Ltd/OBO/ENNOV Infra solutions Pvt.Ltd/erico/powerbolt including connecting of strip between two earthing earth pit cover, including takingdown old unserviceable eathing material complete all as specified and directed by Engr in charge.

(a) The test result of each set of earthing is less than 1 Ohm. All earthing test will be carried out in presence of MES Rep, manufacturer Rep,User Rep and test result will be recorded in a register with sign of User & Engr-in-charge. (b) 5 Year gaurantee certificate from company for maintaining earth result less than 1 Ohm will be submitted by contractor. (c) 1425 RTC SS universal clamp of size 175 x 50 x 3mm.( (d) Earth enhancing compound (PROCEM) ECS GB 25 tested as per IEC 62561-7-25Kg (e) Chemical earthing will be installed by manufacturer Rep and purchase voucher of earthing will be produced before payment. Payment shall be made only after getting satisfactory result.

M&L for removing normal earthing and M&L for commissioning, installation and testing of maintenance free UL approved copper bonded earth rod of 10 feet length, 17.2 mm dia. made of high tensile low carbon steel rod , molecularly bonded with 99.9% electrolytic grade copper on outer surface ( minimum copper bonding thickness - 250 microns) with exothermally jointed copper bus bar of 50 X 6 X 200 mm for connection. The rod and exothermic joint together successfully tested at 25 KA fault current by CPRI with 50 Kg eco friendly earth enhancing compound with each earth rod. The earth pit should be 125 mm dia. the compound should comply to IEC:62561-7 having passed leaching, corrosion, sulphur and resistivity test as per IEC: 62651-7 by NABL accredit Lab with FRP earth pit cover of top size lockable Lid. It includes GI Protection pipe light grade of size 40 mm dia. with Copper strip of size 32X6 mm upto test point strip should be run on PCC block of suitable size for avoid touching to ground complete all as specified and directed by Engr-in-charge. Make JMV LPS Ltd/ OBO/ENNOV Infra solutions Pvt. Ltd/ erico /powerbolt including connecting of Strip between two earthing, including takingdown old unserviceable eathing material complete all as specified and directed by Engr in charge.

(a) The test result of each set after coupling it with existing 02/01 earthing of earthing is less than 1 Ohm. All earthing test will be carried out in presence of MES Rep, manufacturer Rep,User Rep and test result will be recorded in a register with sign of User & Engr-in-charge. (b) 5 Year gaurantee certificate from company for maintaining earth result less than 1 Ohm will be submitted by contractor (c) 1425 RTC SS universal clamp of size 175 x 50 x 3mm (d) Earth enhancing compound (PROCEM) ECS GB 25 tested as per IEC 62561-7-25Kg (e) Chemical earthing will be installed by manufacturer Rep and purchase voucher of earthing will be produced before payment. Payment shall be made only after getting satisfactory result.

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 32x6 mm galvanised iron strip as earthing lead with saddles and fixing screws etc, including takingdown old GI strip complete all as specified & 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 galvanised iron strip as earthing lead with saddles and fixing screws etc, including takingdown old GI strip complete all as specified & directed

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

S&F of copper strip of size 20 x 3.15 mm on PVC/porcelain insulator at suitable distance with saddles and fixing screw etc for roof/Wall conductors and down conductors above ground all joints of copper strip should be brazed properly, including takingdown old copper strip complete all as specified and directed.

S&F air termination single pointed copper rod 12mm dia 300mm long, fixed as in repair complete all as specified and directed.

S&F air termination single pointed aluminium rod 12mm dia 300mm long, fixed as in repair complete all as specified and directed.

Supply and laying galvanised iron pipe, medium grade 50 mm bore with all new fittings, laid in trenches including jointing material etc, fixed as in repair complete all as specified and directed.

Supply and laying galvanised iron pipe, medium grade 40 mm bore with all new fittings, laid in trenches including jointing material etc, fixed as in repair complete all as specified and directed.

Supply and laying galvanised iron pipe, medium grade 25 mm bore with all new fittings, laid in trenches including jointing material etc, fixed as in repair complete all as specified and directed.

Supply and laying galvanised iron pipe, medium grade 15mm bore with all new fittings, laid in trenches including jointing material for earthing network etc complete, including takingdown old GI pipe all as specified and directed.

S & F Gun metal globe or gate valve (ISI marked), with iron wheel head, screwed both ends, suitable for 50 mm bore iron pipe and fixed including testing, fixed as in repair complete all as specifed and directed by Engr-in-Charge.

S & F Gun metal globe or gate valve (ISI marked), with iron wheel head, screwed both ends, suitable for 40 mm bore iron pipe and fixed including testing, fixed as in repair complete all as specifed and directed by Engr-in-Charge.

S & F Gun metal globe or gate valve (ISI marked), with iron wheel head, screwed both ends, suitable for 25 mm bore iron pipe and fixed including testing, fixed as in repair complete all as specifed and directed by Engr-in-Charge.

S & F Gun metal globe or gate valve (ISI marked), with iron wheel head, screwed both ends, suitable for 15mm bore iron pipe and fixed including testing, fixed as in rapir complete all as specifed and directed by Engr-in-Charge.

S&F Bib taps 15mm, cast copper alloy with crutch or butterfly handle, screwed down, screwed for iron pipe or for brass ferrule and fixed to pipe including fixing arrangement, fixed as in repair complete all as specified and directed by Engr-in-Charge.

S&F Rotational moulded PVC, white colour, tripple layered, water storage tanks of capacity 500 litre (cylindrical vertical with closed top), ISI Marked, hoisted and fixed in position, with & including all fittings such as GI tank nipple etc. but excluding ball valve , complete all as specified and directed by Engineer –in-Charge.

Excavation in trenches in soft/loose soil, n exc 1.5m wide and n. exc 1.5m in depth, for foundation, etc or for shafts, wells, cesspits, manholes, pier holes, etc n. exc 10 sqm on plan and n. exc 1.5m in depth and getting out, complete all as specified and directed.

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

Removing excavated soil to a distance not exc 500m and depositing where directed at a level n. exc 1.5m above the starting point, complete all as specified and directed.

M&L for copper brazing for copper strips of various sizes laying on wall /roof etc with the help welding machine and skilled tradesmen by using welding rod etc by taking safety precautions during brazing as directed by the AGE EM / users, including takingdown unserviceable copper strips complete all as specified and as directed by Engr in Charge

M&L for brazing for GI strips of various sizes laying on wall /roof etc with the help welding machine and skilled tradesmen by using welding rod etc by taking safety precautions during brazing as directed by the AGE E/M / users, including takingdown unservicable GI strips complete all as specified and as directed by Engr in Charge.

M&L for fixing the porcelain cleat with the help of nut,bolts clamps etc to fix the strips of various size and types to separate from ground and wall as directed at site by Engr in charge, fixed as in repair complete all as specified & directed.

M&L for PVC conduit heavy duty of 40 mm dia size for the protection of the earthing strip on wall/roof with the help nuts ,bolts clamps, PCC work etc as directed at site by Engr in charge

Supply only salt using for earthing pits as directed at site by Engr in Charge

Supply only charcoal using for earthing pits as directed at site by Engr in Charge

Supply and fix FRP based earth pit cover suitable for chemical earthing all as specified and directed by engr-in-charge.

M&L for PCC(1:3:6) type C2 using 40mm graded aggregate earth pit chamber with PCC cover suitable for conventional earthing all as specifed and directed by engr-in-charge

M&L for Colour coding and marking of earthing pits for LA earthing, signal earthing,equipment earthing and power supply earthing on the MS sheet of 2mm thick of size 30x30cm mounted on 60cm long steel bar of dia 8mm including excavation work ,grouted in cement concrete ,welding painting are deemed inclusive in the quoated rates and colour for coding of earth as specified and directed by the Engr in Charge .

Contract Amount shall be derived after affecting the amount of Schedule of Credit in General Summary on serial page No 17 of tender documents.

M/s Rohit Construction Co.

M/s Tiwari & Sons