SPL REPAIR / REPLACEMENT OF OLD EARTHING PITS AND LIGHTENING ARRESTORS AT VARIOUS LOCATIONS UNDER GE (AF) TECH AREA AT AF STN AGRA

Amount

Dismantling / taking down old unserviceable earthing pit any type/any size including necessary excavation and earth work and demolishing the pits and retrieved the scrap for considering in to credit schedule complete all as apecified and directed.

S&F in repair of Copper strip of size 20 x 3 mm earth continuity conductor or main earthing lead, fixed to wall on DMC type insulator or recess or chases or buried in ground or drawn in conduit / pipe etc complete all as specified and directed.

S&F in repair of Copper strip of size 32X6 mm earth continuity conductor or main earthing lead fixed to wall on DMC type insulators or recess or chases or buried in ground or drawn in conduit/pipe etc. complete all as specified and directed.

M&L for brazing/welding of earthing electrode/strip of any type and size complete all as specified and directed.

S&F in repair of aluminum strip 25 x 3 mm with porcelain insulator and fixing screws etc. on roof/wall and connecting to test point etc complete all as specified and directed.

S&F in repair galvanised iron strip of size 50 x 6 mm with saddles/ on DMC type insulators and fixing screws etc. for roof conductors and down conductors or buried in ground complete all as specified and directed.

S&F in repair galvanised iron strip of size 32 x 6 mm with saddles/ on DMC type insulators and fixing screws etc. for roof conductors and down conductors or buried in ground complete all as specified and directed.

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

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

M&L for earthing pit of PCC (1:3:6:) type C-1 (using 20mm graded stone aggregate) size 550x550x300mm with base 40mm of PCC including wiremesh funnel , AI Frame of size 25x25x3mm at top of Pit to place the cover fixing and placing the pit in existing place with necessary excavation and disposal of old broken pit including all necessary earth work complete all as specified an directed.

M&L for rough dessed Dholpur stone 40mm thickness as a earthing pit cover of size 30x30Cm with 12mm MS rod as a handle to lift the cover including necessary cutting, dressing complete all as specified and directed.

S&F in repair 40 mm dia GI tubing light grade with all fittings such as tee, bend, elbow, reducer, socket etc for earthing lead protection of under ground /on wall etc complete all as specified and directed.

S&F in repair 50 mm dia GI tubing light grade with all fittings such as tee, bend, elbow, reducer, socket etc for earthing lead protection of under ground /on wall complete all as specified and directed.

S&F in repair 80 mm dia GI tubing light grade with all fittings such as tee, bend,elbow,reducer, socket etc for earthing lead protection of under ground /on wall complete all as specified and directed.

Cutting chases, pinning in making good to facings where required and pointing in cemant mortar 1:3 to ends or edges of landings, steps, cills, sunsheds, shelves, lintels, etc; and cutting chases for concealed conduit wiring,etc, and making good in brick wall/RCC, cutting not exc 10 cm girth complete all as specified and directed.

M&L in renewal of earthing complete with Copper plate electrode of size 600mmx600mmx3.15 mm thick buried directly in ground (earth pit not less than 3.00 meter deep below ground level with top edge of the plate not less than 2.25 meter below ground level connected to copper strip of size 20 X 3 mm as earthing electrode by means of bolts, nuts check nuts and washers of galvanised iron or steel connected to earthing test point including with new test point of made by gunmetal ot bronze complete all as specified incl excavation and earth work and disposal of surplus soil incl 40 mm GI tubing light grade and necessary fitting for protection of copper strip incl laying of charcoal dust and common salt, PCC (1:3:6) type C-1 (using 20mm graded stone aggregate) as in earth pit with 40 x 40 x 6 mm MS Angle iron frame of required size 40mm thick and pit cover of well dressed dholpur stone 40mm thick 40x40m size with providing handle in center by making hole and handle made by 12mm MS Rod in round/rectangle shape of handle of 100mm grip, 15mm thick plastering with CM (1:6) internally and upto 150mm below ground level externally, PGI funnel with 20mm dia medium grade GI pipe for watering and wire mesh complete all as specified and shown on electrical plate No 3 of SSR Part-I (2009) and connected to earth test incl testing complete all as specified and directed. Note :- (i) Copper strip and protection light grade GI pipe upto 7.5 meter shall be deemed to be included in the quoted rates. (ii) The earthing value of each earthing pit to be below 1 Ω (Ohm). (iii) Excavation and all earth work shall be deemed to be included in the unit rates as quoted by the contractor.

M&L in renewal of chemical earthing complete with Copper plate electrode of size 900mmx600mmx5 mm thick buried directly in earth pit not less than 4.7 meter below normal ground level and complete size of pit 1.6 meter x 0.61 meter x 5.10 meter earth plate connected to copper strip 32x6mm by means of copper/ brass nut, bolts earth strip protected with 40 mm bore light grade GI pipe from electrode and upto and including the earth test point of gun metal , 20mm bore watering pipe, medium grade GI pipe including funnel wiremess providing alternate layer of 10 cm each charcoal salt and magnesium sulphate layer upto 1.2 meter and 2 Kg coper sulphate to be added around including excavation, returning in filling, removal of surplus soil to a distance not exceeding 50m, PCC (1:3:6) type C-1 (using 20mm graded stone aggregate) as in earth pit with 40 x 40 x 6 mm MS Angle iron frame of required size 40mm thick and pit cover of well dressed dholpur stone 40mm thick 40x40m size with providing handle in center by making hole and handle made by 12mm MS Rod in round/rectangle shape of handle of 100mm grip, 15mm thick plastering with CM (1:6) internally and upto 150mm below ground level externally, PGI funnel with 20mm dia medium grade GI pipe for watering and wire mesh complete all as specified and shown on electrical plate No 3 of SSR Part-I (2009) and connected to earth test incl testing complete all as specified and directed. Note :- (i) Copper strip and protection light grade GI pipe upto 7.5 meter shall be deemed to be included in the quoted rates. (ii) The earthing value of each earthing pit to be below 1 Ω (Ohm). (iii) Excavation and all earth work shall be deemed to be included in the unit rates as quoted by the contractor.

M&L for bore well earthing in soil by vehicle mounted pneumatic drill machine upto depth of 50 meter below ground level using earth electrode 50mm dia GI pipe medium grade duly drilled hole 12mm dia on pipe,15cm C/C on both side of pipe including lowering in bore well upto depth of 49.5 meter and 0.5 meter above ground level. The pipe electrode should be filled around commercial salt charcoal dust, and magnesium phosphate of 30cm layer each upto the full length of pipe. the bore well casing pipe should have 12 meter of length 150mm dia 5 mm thickness MS pipe for protection of bore well welding of GI strip 50x6mm on earth electrode of length 0.5 meter and include upto 7.5 meter to the test point and GI tubing light grade 50 mm upto 7.5 meter from the bore well including test point gun metal or phosphorus bronze size 75x75x25mm, drilled screwed including 3 Nos, 8mm dia, 25mm long hexa head screw and PCC earth pit foundation in cement concrete 1:3:6 Type C-I (using 20 mm graded stone aggregate) surrounding the bore well of size 60x60x30cm and pit cover complete all as directed by Engineer-in-Charge. Note :- (i) The earthing value of each earthing pit to be below 1 Ω (Ohm).

M&L for earthing in renewal of complete with galvanised steel plate electrode 600mmx600mmx6mm thick buried directly in ground (earth pit not less than 2.25 Mts deep below ground level with top edge of the plate not less than 1.50 Mtrs below ground level connected to glavanised iron strip of size 32x6 mm by means of bolts, nuts check nuts and washers of galvanised iron or steel connected to earthing test point all as specified incl excavation and earth work and disposal of surplus soil incl 40 mm GI tubing light grade and necessary fitting for protection of copper strip incl laying of charcoal dust and common salt PCC (1:3:6) type C-1 using 20mm graded stone aggregate earth pit with 40x40x6mm MS angle iron frame, RCC cover 40mm thick (1:2:4) type B-0 using 12.5mm graded stone aggregate reinforced with 6 mm dia round bar @ 75mm C/C both ways with MS handle 12mm dia, plastering 15mm thick CM (1:6) internally and upto 150mm below ground level externally, PGI funnel with 20mm dia GI pipe for watering and wire mesh complete all as specified and shown on electrical plate No 3 of SSR Part (2009) and connected to earth test incl testing complete all as specified an directed. Note :- (i) GI Strip and protection light grade GI pipe upto 7.5 meter shall be deemed to be included in the quoted rates. (ii) The earthing value of each earthing pit to be below 1 Ω (Ohm). (iii) Excavation and all earth work shall be deemed to be included in the unit rates as quoted by the contractor.

M&L for earthing in renewal of complete with galvanised steel plate electrode 600mmx600mmx6mm thick buried directly in ground (earth pit not less than 2.25 Mts deep below ground level with top edge of the plate not less than 1.50 Mtrs below ground level connected to glavanised iron wire of size 4 mm by means of bolts, nuts check nuts and washers of galvanised iron or steel connected to earthing test point all as specified incl excavation and earth work and disposal of surplus soil incl 40 mm GI tubing light grade and necessary fitting for protection of copper strip incl laying of charcoal dust and common salt PCC (1:2:3) type C-1 using 20mm graded stone aggregate earth pit with 40x40x6mm MS angle iron frame, RCC cover 40mm thick (1:2:4) type B-0 using 12.5mm graded stone aggregate reinforced with 6 mm dia round bar @ 75mm C/C both ways with MS handle 12mm dia, plastering 15mm thick CM (1:6) internally and upto 150mm below ground level externally, PGI funnel with 20mm dia GI pipe for watering and wire mesh complete all as specified and shown on electrical plate No 3 of SSR Part (2009) and connected to earth test incl testing complete all as specified an directed. Note :- (i) GI wire and protection light grade GI pipe upto 7.5 meter shall be deemed to be included in the quoted rates. (ii) The earthing value of each earthing pit to be below 1 Ω (Ohm). (iii) Excavation and all earth work shall be deemed to be included in the unit rates as quoted by the contractor.

M&L for MS sheet of size 30 x 20cm & thickness of 2mm shape of square/round/triangle as per sample including 10mm dia MS bar (90 cm long), framed work with shape of 'T' etc, necessary welding, earth works, etc including two coats of synthetic enamel paint over a coat of red oxide primer and marking of TESTED ON -------, RESULT -------------with different colour of synthetic enamel paint with suitable size of letters and all arrangements including grouting with PCC (1:3:6) type C-1 (Using 20 mm graded stone aggregates) of size 150x150x150mm complete all as specified and directed .

M&L cutting of existing steel tubing of any size upto 50mm bore for insertion of new 'T' of required size complete all as specified and directed.

S&F in repair Gun-metal, globe or gate valves,15 mm with iron wheel head, screwed both ends for iron pipe high pressure and fixed all as specified and directed.

S&F in repair Gun-metal, globe or gate valves, 20 mm with iron wheel head, screwed both ends for iron pipe high pressure and fixed all as specified and directed.

S&F in repair GI tubing medium grade size 15 mm in fixed to wall/ceiling including required GI fitting complete all as specified and directed

S&F in repair GI tubing medium grade size 20 mm in fixed to wall/ceiling including required GI fitting complete all as specified and directed.

S&F in repair bib tap/stop cock 15mm bore standard of PTMT any colour screwed for iron pipe and fixed complete all as specified and directed.

H.S.Kochhar n Sons (BID ID -3467133)

Sethi Brothers (BID ID -3471571)

GUPTA ENGINEERING WORKS (BID ID -3466794)