REPAIR AND MAINT OF EARTHING PITS CHECKING OF EN VALUE, LOAD BALANCING, LIGHTENING ARRESTOR AND OTHER MISC WORKS IN ZONE A UNDER GE(AF) (TECH AREA) AT AF STN, AGRA

Amount

S&F in repair of Air termination, single pointed aluminium rod 12mm dia and 300mm long 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.

S&F in repair of Copper strip 20 x 3 mm with saddles/insulators and fixing screws etc. for roof conductors and down conductors above ground complete all as specified and directed.

S&F in repair of Copper strip 32 x 6 mm with saddles/insulators and fixing screws etc. for roof conductors and down conductors above ground complete all as specified and directed.

S&F in repair of galvanised strip 25 x 4 mm with saddles/insulators and fixing screws etc. for roof conductors and down conductors above ground complete all as specified and directed.

S&F in repair of galvanised strip 32 x 6 mm with saddles/insulators and fixing screws etc. for roof conductors and down conductors above ground 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.

M&L in repair of earth continuty conductor or main earthing lead fixed wall on batten or recess or buried in ground or drawn in conduit / pipe or fixed to poles or any other indicated situation for loop earthing etc as required 4mm dia galvanised wire including suitable size lugs complete all as specified and directed.

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

Note for item No. 1 to 10:- (1) Working height of hangar & bldg upto 18 mtr. The contractor will arrange all T&P and all type of safety arrangement .Cost for which shall be deemed to be included in quoted rates and no extra payment shall be paid to contractor.

M&L in repair for 40mm dia GI tubing light grade for mounting of Air termination rod/lead protection pipe embedded in PCC(The rate of PCC shall be paid separately under appropriate item) complete all as specified and directed.

M&L in repair for Tube 'light grade' size 50 mm dia galvanised with all fittings for earthing lead protection of under ground /on wall 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 Gun-metal, globe or gate valves,15 mm with iron wheel head, screwed both ends for iron pipe high pressure and fixed complete all as specified and directed.

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

Supply & laying in repairs including testing and commissioning GI tubing medium grade size 15 mm in fixed to wall/ceiling including required GI fitting complete all as specified and directed

Supply & laying in repairs including testing and commissioning 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.

M&L for earthing pit of PCC (1:3:6:) type C-1 (using 20mm graded stone aggregate) size 550x550x300 with base 40mm of PCC including wiremesh funnel fixing and disposal of old broken pit including all necessary excavation & earth work complete all as specified an 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, cutting not exc 10 cm girth complete all as specified and directed.

M&L for painting of earthing pit and pit cover with one coat of primer and two coats of synthetic enamal paint and indicate with colour code Red & Yellow complete all as specified and directed.

M&L for PCC (1:3:6:) type C-1 (using 20mm graded stone aggregate) as in base support of struts and other similar location etc with and including all necessary form work complete all as specified an directed.

M&L for earthing complete with Copper plate electrode of size 600mmx600mmx3.15 mm thick buried directly in ground (earth pit not less than 3.00 Mts deep below ground level with top edge of the plate not less than 2.25 Mtrs below ground level connected to copper strip of size 20 X 3 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) as in earth pit with 40x40x6mm MS angle iron frame of required size, 40mm thick RCC cover of RCC (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 made out of 12mm dia MS bar of 150mm 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 (2009) and connected to earth test incl testing complete all as specified and directed.

M&L for chemical earthing with copper earth plate electrode of size 900x600x5mm burried directly in earth pit not less than 4.7 mtr below normal ground level and complete size of pit 1.6 mtr x 0.61 m x 5.10m, earth plate connected to copper strip of size 32x6 mm by means of copper/brass nut, bolt duly brazed earth strip protected with 40 mm bore light grade GI pipe from electrode and upto and, 20 mm bore watering pipe, medium grade GI pipe including funnel , wiremess providing alternate layer of 10 cm each charcoal salt and magnesium suplhate layer upto 1.20mtr and 2kg copper sulpate to be added around the plate for better result and including excavation , returning in filling , removal of surplus oil to a distance not exceeding 50m , PCC pit in PCC 1:2:4 type B1 (using 20 mm graded stone aggregate), 40 mm thick RCC Cover in RCC (1:2:4) type B-1 (using 20 mm graded stone aggregate) reinforced with 8 mm dia MS deformed bars @ 100 mm C/C both ways including MS handle of 12 mm dia round bar etc to be placed on and including angle iron frame of suitable size as directed made of section 40x40x3 mm of angle iron complete all as specified and directed.

M&L for bore earthing in soil by DTH machine upto depth of 75 mtr 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 74 mtr and 1 mtr above ground level. The pipe electrode should be filled around commercial salt charcoal dust, copper sulphate and magnesium phosphate of 30cm layer each upto the full length of bore. the bore well casing pipe should have 12 mtr of length 150mm dia 5.4mm thickness MS pipe for protection of bore well.welding of GI strip 50x6mm on earth electrode and upto 7.5 mtr from the bore well to test point and PCC foundation in cement concrete 1:3:6 type C-1 (using 20mm graded stone aggregrate) of size 60cmx60cmx30cm all around the bore complete all as specified and direceted.

Note for item No. 24 to 26:- (i) Copper strip and protection light grade GI pipe upto 7.5 mtr shall be deemed to be in the 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.

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

M&L for earthing complete with galvanised steel plate electrode of size 600mmx600mmx6 mm thick buried directly in ground (earth pit not less than 2.25 Mtr deep below from ground level with top edge of the plate not less than 1.5 Mtrs below from ground level connected to glavanised iron strip of size 25 x 4 mm by means of bolts, nuts, check nuts and washers of galvanised iron or steel connected to earthing test point incl excavation and earth work and disposal of surplus soil to a distance as directed incl 40 mm GI tubing light grade and necessary fitting for protection of galvanised 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 MS angle iron frame of of angle iron of size 40x40x6mm, 40mm thick RCC cover of RCC (1:2:4) type B-1 (Using 20 mm graded stone aggregate) reinforced with 6 mm dia round bar @ 75mm C/C both ways with 150mm size MS handle made out of 12mm dia MS bar, 15mm thick plastering with 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 and directed.

Note :- (i) GI strip and protection light grade GI pipe upto 7.5 mtr shall be deemed to be in the rates. (ii) The earthing value of each earthing pit to be below 5 Ω (Ohm) (iii) Excavation and all earth work shall be deemed to be included in the unit rates as quoted by the contractor.

Supply and installation of advanced encapsulated compound based CPRI tested maintenance free, pipe-in-pipe technology upgraded (Zinc & Alloy coated), (80-100) microns Zinc Coating with pure Zinc (99.90%) & (200-250) Alloy Coating, dia of outer and inner pipe should be 76.2mm & 41.9mm respectively and 3.0M length of each, Zinc Coating with additional special alloy coating on the topside (300mm) for additional protection of the terminal, annuar space between the pipes should be COMPACTED FILL (CF) with & including Crystalline Conductive Compound by using machine, machine pressed COMPACTED FILL (CF) mixture in the pipes should not disintegrate or colloapse when outer pipe corrodes. The inner pipe should be extended with terminals for connectivity, digging the pits and refilling the same with & including Electrodite/ Conductolite back fill compound (Ground Enhancer) and back fill compound (BFC) should be eco friendly & should not contain environmentally hazardous material/ metal and also having RoHS certification from NABL accredited lab. The earth pit should be provided with a RCC earth pit cover or RCC 1:3:6 type C1 (Using 20mm graded stone aggregates) and including 2 Nos FI clamps 40x6mm (4mm long each clamp) for protection and safe guard of terminals. In areas, where soil condition is bad, good earth is to be arranged to fill the excavated pits by mixing the same with back fill compound (BFC) 2 to 4 or more bags (as per soil conditions) extra per pit/ unit and no extra payment for more bags will be paid to contractor. Since earth electrode of the earthing system should be in direct contact with the ground, hence, materials which to be used in the earthing, should have good electrical conductivity & anti corrosion property in wide range of soil conditions and complete earthing system conforming to IS : 3034 complete all as specified and directed.

Notes: (i) Excavation and all earth work shall be deemed to be included in the unit rates as quoted by the contractor. (ii) The earthing value of each earthing pit to be below 1 Ω (Ohm on testing after completion) if the desired earth resistance is not obtained the earthing will be redone at no extra cost.

Disconnecting of GI earthing strips/earth wire leads of any size, any description and in any position from test point carefully and testing the earth resistance of any type of lightening conductor earthing with the help of earth tester of suitable capacity and recording Ohm value in the register as per proforma approved by Engineer-in-Charge including cleaning vegetation/wild growth sorrounding of 2 Mtr from the earth pit and removing dust/deposited soil from earth pit complete all as specified and directed.

Note : (i) The contractor will arrange Earth Tester of all T&P & accessories for recording the reading.

(ii) The contractor shall arrange for watering of the earth pit through watering pipe in the earthing to improve the resistance. Common salt min. 5 Kgs for each earthing pit shall be mixed with the water at site and filled/dropped in earthing through watering pipe as per site condition and as directed by Engineer-in-Charge. The water for this purpose shall be made available by the Deptt. at the nearest available source but contractor shall also make his own arrangement for drawing water from this source cost for which shall be deemed to be included in quoted rates and no extra payment shall be paid to contractor.

(iii) The record of resistance value of each earthing alongwith date of testing shall be maintained on register as per format and signature taken of user rep and MES rep.

(iv) (a) 01 x Electrician and 01 x helper will be detailed by the contractor for attending above complaints. Cost for which shall be deemed to be included in quoted rates. (b) Renewal of major items shall be measured and paid under relevant items of this schedule. (c) Electrician and helper so detailed by the contractor will report to MES complaint cell at 0800 hrs morning all working day to receive complaint slip from department and complaints shall be rectified within 08 hours. If contractor fails to detail above tradesmen, a panel recovery @ Rs 500.00 per day shall be made to the contractor and the shall be recovered from RAR/final bill.

(v) Testing of the earthing shall be carried out periodically as directed by Engineer-in-Charge as per site requirement and unit rates quoted by the contractor for all the material and arrangements shall be deemed to include for all the provisions for testing of the earthing for one time.

M&L for renewal of earthing by using of chemical copper sulphate including T&P equipment with all safty measures complete all as spacified and directed.

M&L for renewal of earthing by using of chemical Zinc sulphate including T&P equipment with all safty measures complete all as spacified and directed.

M&L for renewal of earthing by using of chemical Magnesium sulphate including T&P equipment with all safty measures complete all as spacified and directed.

M&L for precast cement concrete (1:2:4) type B1 (Using 20mm graded stone aggregate) of size approx 450x450x50mm thick as in earth pit cover with 3 nos 8 mm dia TMT bars both ways with 8 mm dia round bar handle of 150 mm size including provision of lifting arrengement made out fo 8mm dia round bar of suitable size as directed complete all as spacified and directed.

M&L for MS work/ steel nut ,bolt & washer for suitable size/all arrangements complete all as specified and directed.

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 enemal paint over a coat of red oxide primer and marking of TESTED ON -------, RESULT -------------with different colour of synthetic emenal paint with suitable size of letters and all arrangements including PCC (1:3:6) type C-1 (Using 20 mm graded stone aggregates) of size 150x150x150mm complete all as specifed and directed .

M& L for checking and balancing of electric load on each DB/panel/busbar and by disconnecting and check E-N and E-R in permissibe limit and proper reconnecting including disconnection of circuit and reconnection after balancing of load complete all as specified and directed.

Note:- 01 x Electrician and 01 x helper will be detailed by the contractor for attending above complaints. Cost for which shall be deemed to be included in quoted rates. (b) Renewal of major items shall be measured and paid under relevant items of this schedule. (c) Electrician and helper so detailed by the contractor will report to MES complaint cell at 0800 hrs morning all working day to receive complaint slip from department and complaints shall be rectified within 08 hours. If contractor fails to detail above tradesmen, a panel recovery @ Rs 500.00 per day shall be made to the contractor and the shall be recovered from RAR/final bill.

Excavation in trenches in soft/ loose soil n.exc 1.5m wide and n. exc 1.5m depth for laying of cable, errection of poles, stay and pipe line,and getting out complete all as specified and directed.

Returning & filling including spreading, leveling watering and well ramming in layers n. exc 25 cm thick in soil complete all as specified and directed.

Removing excavated soil n. exc 50 m and depositing where directed at a level n.exc. 1.5 mtr above the starting point complete all as specified and directed.

M&L for laying of bricks locally available sub class 'B' bricks (old size) for cable protection cover, laid flat and dry in trenches over the cable prependicular to the direction of cable complete all as specified and directed.

M&L for local sand coushioning with dry and clean over and under the cable for protection of cable , 80 mm sand laid before laying the cable 150 mm sand after laying the cable complete all as specified and directed. Note : Thickness of sand after punning will be measured for payment purpose.

Taking out old serviceable/ unserviceable LT UG cables of any size of 10 to 25 sq mm, 2/3.5/4 core from trenches, poles/walls and floor includuing taking out old serviceablee bricks from trenches complete all as specified and directed.

Supply and laying XLPE LT UG cable PVC insulated , bedded armoured heavy duty electric cable 1100 volts grade with aluminum conductor of 16 sq mm, 4 core in trenches or fixed on wall/floor/poles complete all as specified and directed.

Supply and laying XLPE LT UG cable PVC insulated , bedded armoured heavy duty electric cable 1100 volts grade with aluminum conductor of 35sq mm, 3.5 core in trenches or fixed on wall/floor/poles complete all as specified and directed.

S&F for sub main wiring with PVC insulated sheathed 2x6 sqmm and 1x6sqmm single core FRLS cable standard copper conductor 1100 volt grade be use as continuous earth connected to earth down and incl into PVC condute with all accessories complete all as specified and directed.

S&F for sub main wiring with PVC insulated sheathed 2x4 sqmm and 1x4sqmm single core FRLS cable standard copper conductor 1100 volt grade be use as continuous earth connected to earth down and incl into PVC condute with all accessories complete all as specified and directed.

S&F MCB TPN DB,4 way Vertical type,440V,3 phase with rated busbar 250 Amps, double door type suitable for MCCB as a incomer and MCBs as out going ,IP 54-IK 09 with metal door double door type after taking out old DB, grouted in walls with PCC 1:2:4 type B1 using 20mm graded stone aggregate complete all as specified and directed.

S & F MCCB fixed type of 125 Amps 4 pole 16 KA, 415 Volts 50 Hz complete including connecting all incoming and outgoing connection by means of suitable size of lugs/thimbles all as specified and directed.

S&F sheet metal enclosure factory made double door for DB 240 volts with 200 Amps rated bus bar SPN 8 Way complete all as specified and directed.

S & F MCB DP 40-63 Amp 240 Volts 'B' series 10 KA complete all as specified and directed.

S & F MCB FP 63 Amp 240 Volts 10 KA complete all as specified and directed.

S&F MCB SP 6-32 Amps, 240V 'C' Series 10 KA complete all as specified and directed.

H.S.Kochhar n Sons

Star Enterprises

Industrial Traders

GUPTA ENGINEERING WORKS