REPAIR/MAINT OF LIGHTENING ARRESTOR, EARTHING AND OTHER MISC WORK IN TECH AREA UNDER GE(AF) (TA) AT AF STATION, AGRA

Amount

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

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

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.

S&F in repair of Copper strip 20 x 3.15 mm with saddles/insulators and fixing screws etc. for roof conductors and down conductors above ground.

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.

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.

S&F in repair of galvanised strip 30 x 5 mm with saddles/insulators and fixing screws etc. for roof conductors and down conductors above ground.

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 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 all as spacified 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 copper wire including suitable size of lugs all as specified and directed.

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

Note for item No. 1 to 11:- (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 Tube 'light grade' size 25 mm dia galvanised with all fittings for earthing lead protection of under ground /on wall all as specified and directed.

M&L in repair of GI tubing 'light grade, size 40mm bore in vertical position of 1.0 mtr length for mounting of Air termination rod and embedded in PCC(The rate of PCC shall be paid separately under appropriate item).

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 all as specified and directed.

Supply & laying in repairs including testing and commissioning GI tubing medium grade size 40 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 50 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 (Make –Prayag/Symet).

M&L for 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.

M&L for painting of earthing pit cover with one coat primer and two coat of synthetic enamal paint and indicate with colour code Red & Yellow 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 and 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 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 (1:2:3) 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 including taking out old u/s earth plate all as specified and diected.

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 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 including the earth test point of gun metal/ phosphorous bronze of size 75x75x25 mm, 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 RCC Cover 40 mm thick in RCC (1:2:4) type B-1 using 20 mm graded stone aggregate reinforced with 8 mm dia MS deformed bars @ 100 mm CYC both ways including MS handle of 12 mm dia round bar etc to be placed on and including angle iron frame made of section 40x40x3 mm of angle iron complete including taking out old u/s earth plate all as specified and diected.

Note for item No. 21 to 22:- (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 & earth work shall deemed to be included in the unit rate quoted by contractor.

M&L for earthing complete with galvanised steel plate electrode 600mmx600mmx6 mm thick buried directly in ground (earth pit not less than 4.00 Mtr deep below ground level with top edge of the plate not less than 3.25 Mtrs below ground level connected to glavanised iron strip 25 x 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 galvanised 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-1 using 20 mm 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 including taking out old u/s earth plate all as specified and diected.

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 1 Ω (Ohm) (iii) Excavation & earth work shall deemed to be included in the unit rates quoted by 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 1:3:6-20MM agregates and including FI clamps 40x6mm -2nos.(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 bags (as per soil conditions) extra per pit/ unit. 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. Make:- INDELAG or ASHLOK or MACMET as approved by GE.

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 the earth pit and removing dust/deposited soil from earth pit.

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 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 daily basis. Cost for which shall be deemed to be included in quoted rates. (b) Replacement 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 precast cement concrete (1:2:4) type B1 (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 including provision of lifting arrengement made out fo 8mmdia round bar complete all as spacified and directed

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

M & L for MS sheet 30 x 20cm, thickness of 2mm shape of square/round/triangle as per sample including bar 10mm dia, 90 cm long framed work with shape of 'T' etc, necesary welding, earth works, etc painting / marking of TESTED ON -------, RESULT --------------, and all arrangements including PCC (1:3:6) 20 mm graded stone aggregates of size 150x150x150mm complete all as specifed and directed .

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.

Star Enterprises

TRIVENI ASSOCIATES

GUPTA ENGINEERING WORKS