Latest optical fibre cable construction Tenders | Government optical fibre cable construction Tenders

Central Government/Public Sector

CTN :45475154

07 Jul, 2026 30.00 Lacs

Gwalior - Madhya Pradesh

Tender For corrigendum : repair / replacement and maint of lt external electric supply works and other connected items at east & west wing in tech area under ge (af) tech area gwalior - s&f in repair mccb, 4 pole, 630 amps current rating and ultimate breaking capacity ics=icu =100% 36 ka with adjustable overload setting and having thermal magnetic release and to be fixed in distribution board, complete all as specified and directed., all as per item here-in-before but mccb, 4 pole, 400 amps current rating and ultimate breaking capacity 36 ka. ics = 100 % of icu, all as per item here-in-before but mccb, 4 pole, 315 amps current rating and ultimate breaking capacity 36 ka. ics = 100 % of icu, all as per item here-in-before but mccb, 4 pole, 250 amps current rating and ultimate breaking capacity 36 ka. ics = 100% of icu, all as per item here-in-before but mccb, 4 pole, 160 amps current rating and ultimate breaking capacity 36 ka . ics = 100 % of icu, all as per item hereinafter but mccb, 4 pole, 125 amps current rating and ultimate breaking capacity .16 ka . ics = 100 % of icu, all as per item here-in-before but mccb, 4 pole, 100 amps current rating and ultimate breaking capacity. 16 ka. ics = 100 % of icu, all as per item here-in-before but mccb, 4 pole, 63 amps current rating and ultimate breaking capacity .16 ka . ics = 100 % of icu, m&l for earthing complete with galvanised steel plate electrode 600x600x6mm thick buried directly in ground (top edge of the plate should not be less than 1.50mtrs below ground level) connected to gi strip 25 4mm by means of bolts, nuts check nuts and washers of galvanised iron or steel connected to earthing test point all as specified incl 20 mm gi tubing medium grade and necessary fitting for protection of gi strip incl laying of charcoal dust and common salt in alternate layers of 150mm th, pcc chamber using pcc(1:3:6) type c-1 using 20mm graded stone aggregate, rcc cover 40mm thick (1:2:4) type b-0 using 12.5mm graded stone aggregate reinforced with 6mm dia round bar @ 75mm c/c both ways with ms handle 8mm dia, plastering 15mm thick cm (1:6) externally up to 150mm below ground level, gi funnel with 20mm dia medium grade gi pipe for watering and wire mesh incl excavation and earth work and disposal of surplus soil complete all as specified and shown on electrical plate no.3 of ssr part-i (2009) and connected to earth test point incl testing and marking bldg nos and writing test results (in white) on a black painted m.s. plate (size 300x300x3mm th) duly welded with angle iron of size 40x40x5mm, 60cm long, fixed with the earth pit chamber by grouting complete all as specified and directed.note :- (i) gi strip 25 4mm and gi pipe medium grade, up to 7.5mtr shall be deemed to be included in the rates quoted for earthing.(ii) excavation and earth work in any type of soil strata shall be deemed to be included in rates quoted for earthing. (iii) the rates quoted by the contractor are deemed to be included for pcc chamber and pcc cover as per ssr part-1.-, m&l for preparation of old painted surfaces of lt steel tubular pole/strut, of any description and in any position 9.00/8.50 mtr height and scrapping of pole with emery paper and applying one coat of aluminium paint on all the metallic surfaces including protection pipe, cross arms, clamps, gi pipe bracket of street/security light, anti climbing devices etc and providing three nos radium band strips complete all as specified and directed., supplying ,laying, jointing and testing xlpe insulated, armoured, heavy duty, aluminum conductor cable 1100 volts grade ,laid in trenches/ducts, floors, fixed to walls etc. complete all as specified and directed for the following sizes.note: the cost of taking down of lt ug cable is deemed to be included in the quoted rate, 35 sqmm 3 core, 50 sqmm 3 core, 70 sqmm 3 core, 185 sqmm 3 core, 240 sqmm 3 core, excavation in trenches n exc 1.5 mtr wide and n exc 1.5 mtr depth for foundation and laying of cable and get

Central Government/Public Sector

CTN :45713835

18 Jul, 2026 30.00 Lacs

Mumbai - Maharashtra

Tender For repair/replacement of external electric supply distribution network with other connected items at malad, marve and kandivali under ge (n) santacruz, mumbai - supply, install, testing & commissioning pedestal cubical type double door lt bus bar chamber box of suitable size factory made modular construction fabricated out of 3 mm thick crca sheet, angle iron, channels, epoxy powder coated to give a superior finish , outdoor type , totally enclosed dust & vermin proof with locking arrangements front & back side opening system including rain shed, busbar chamber should be suitable for accomodating all aluminium bus bar strips (50mm x 10mm x 04 nos) & gi strip for earth fixed on porcelain insulators, and one independent metering module suitable for accomodating three phase volt meters & ammeter digital type, indicator lamps, cable entry/exits cut outs at bottom part, with fixing arrangement on pcc (1:3:6) type c-2 bed block with studs, bolts, nuts & washers, danger notice board with scull suitable for 415 volts or required size to be fixed on pannel including dismantling of old bus bar panel all as specified and directed by engr-in charge.notes:-(a) aluminium bus bar duly covered with colour coded shrinkable sleeves of required size for phases and neutral - 01 set(b) mccb 4 pole , ics=100%icu- 25 ka, 415 volts, 100 amps , with thermal adjustable and fixed magnetic setting with extended terminals -02 nos.(c) digital multifunction meter of size 96x96 mm to measure current, voltage, frequency and power factor with built in selector switch and programable ct of appropriate ratio.-01 no make- imp/automatic electrical(ae)/ l&t / havells/ meco(d) panel indicating lamp neon/led type (red ,yellow & blue) with lamp holders - 03 nos(e) panel instrumental wiring with frls suitable size but not less than 2.5 sqmm copper wire single core - 01 job(f) necessary sizes of lugs for fixing of cables in bus bar deemded to be included rate quoted by the contractor.make of mccb & mcb: larsen &toubro/ abb/ siemens/ schneider/ havells/ legrand/ indo asian/ c & s electric/ bhartia cuttler hammer (bch)/benlo, supply & fixing mccb 4 pole 36 ka 400 amp with adjustable thermal & adjustable magnetic setting, including taking down old unserviceable mccb, all as specified and directed by engr-in-charge. make:- larsen &toubro/ abb/ siemens/ schneider/ havells/ legrand/ indo asian/ c & s electric/ bhartia cuttler hammer (bch)/benlo, supply & fixing mccb 4 pole 36 ka 160 amp with adjustable thermal & adjustable magnetic setting, including taking down old unserviceable mccb, all as specified and directed by engr-in-charge. make:-larsen &toubro/ abb/ siemens/ schneider/ havells/ legrand/ indo asian/ c & s electric/ bhartia cuttler hammer (bch)/benlo, supply & fixing mccb 4 pole 16 ka 100 amp with adjustable thermal & adjustable magnetic setting, including taking down old unserviceable mccb, all as specified and directed by engr-in-charge. make:-larsen &toubro/ abb/ siemens/ schneider/ havells/ legrand/ indo asian/ c & s electric/ bhartia cuttler hammer (bch)/benlo, supply & fixing mccb 4 pole 36 ka 250 amp with adjustable thermal & adjustable magnetic setting, including taking down old unserviceable mccb all as specified and directed by engr-in-charge make:-larsen &toubro/ abb/ siemens/ schneider/ havells/ legrand/ indo asian/ c & s electric/ bhartia cuttler hammer (bch)/benlo, supplying, laying,connecting, testing & commissioning lt ug pvc insulated, heavy duty, 1100 v grade electric cable with aluminium conductor of size 16 sqmm x 4 core, laid in trenches or passing through pipe or fixed to wall, making all connections with and including provision of necessary glands, lugs, bushing etc as required including taking down old unserviceable cable complete all as specified and as directed by engineer-in-charge of following sizes:-note : earthwork excavation, dwc

Central Government/Public Sector

CTN :45365822

06 Jul, 2026 39.99 Lacs

Bikaner - Rajasthan

Tender For corrigendum : repair to security lights panels dg sets fire alarm ups with covered items at af stn bikaner under ge (af) nal - excavation in trenches in soft/loose soil not exceeding 1.5 mtr wide and not exceeding 1.5m depth, getting out the excavated earth, forming bottom surfaces to required gradient complete all as specified and directed by engineer-in-charge., removal of excavated material soils to a distance n exc 50 m and depositing where directed at a level not exceeding 1.5m above the startly point complete all as specified and directed., returning filling in, including spreading, levelling watering and well ramming in layers n exc 25 cm as in any type of soil complete all as specified and directed., material and labour for sand cushioning using dry and clean tibba sand in two layers, first layers of 80mm thick before laying of cable and second layer of 150mm thick after laying of cable in trenches/ducts including consolidation of each layers complete all as specified and directed. note : punned thickness shall be measured for payment., material and labour for un-reinforced pre-cast concrete cable covers, class lv type-1, flat size 250mm x 150mm x 40mm thick complete all as specified and directed., taking out defective cable xlpe/pvc sheathed 1100 volt grade heavy duty armoured with aluminum conductor 2 core, 6 sqmm from trenches complete all as specified and directed.note : excavation and earth work shall be measured and paid for separately under relevant item, taking out defective cable xlpe/pvc sheathed 1100 volt grade heavy duty armoured with aluminum conductor 2 core, 10 sqmm from trenches complete all as specified and directed.note : excavation and earth work shall be measured and paid for separately under relevant item, taking out defective cable xlpe/pvc sheathed 1100 volt grade heavy duty armoured with aluminum conductor 4 core, 16 sqmm from trenches complete all as specified and directed.note : excavation and earth work shall be measured and paid for separately under relevant item, taking out defective cable xlpe/pvc sheathed 1100 volt grade heavy duty armoured with aluminum conductor 3.5 core, 25 sqmm from trenches complete all as specified and directed.note : excavation and earth work shall be measured and paid for separately under relevant item, taking out defective cable xlpe/pvc sheathed 1100 volt grade heavy duty armoured with aluminum conductor 3.5 core, 35 sqmm from trenches complete all as specified and directed.note : excavation and earth work shall be measured and paid for separately under relevant item, taking out defective cable xlpe/pvc sheathed 1100 volt grade heavy duty armoured with aluminum conductor 3.5 core, 50 sqmm from trenches complete all as specified and directed.note : excavation and earth work shall be measured and paid for separately under relevant item, supplying, laying, jointing and testing of under ground cable xlpe insulated, 1100 volt grade heavy duty armoured with stranded aluminium conductor 2 core 6 sqmm laid in trenches/duct/pipe including all electrical connection with required lugs and nuts, bolts complete all as specified and directed by engineer-in-charge , supplying, laying, jointing and testing of under ground cable xlpe insulated, 1100 volt grade heavy duty armoured with stranded aluminium conductor 2 core 10 sqmm laid in trenches/duct/pipe including all electrical connection with required lugs and nuts, bolts complete all as specified and directed by engineer-in-charge, supplying, laying, jointing and testing of under ground cable xlpe insulated, 1100 volt grade heavy duty armoured with stranded aluminium conductor 4 core 16 sqmmlaid in trenches/duct/pipe including all electrical connection with required lugs and nuts, bolts complete all as specified and directed by engineer-in-charge, supplying, laying, jointing and testing of under ground cable xlpe insulated, 1100 volt grade heavy duty armoured with stranded aluminium conductor 3.5 core 25 sqmm laid in trenches

CTN :45298008

01 Jul, 2026 NA

Parganas - West Bengal

Tender For bid to ras supply of xlpe cable for working voltage up to and including 1.1 kv marked to is 7098 (part 1) (q2) , miniature circuit breakers (mcb) for ac operation marked to is/iec 60898 (part 1) (q2) , supply and fixing on load change over switch ss enclosure complete with capacity 200 amp, 415 volt, 4 pole, 50 hz. , supply and fixing sheet metal enclosure spn db double door having facility to fix mcb spn as incomer and mcbs as outgoing, spn 4 ways, ip-43 , supply and fixing sheet metal enclosure tpn db double door having facility to fix mcb tpn as incommer and mcbs as outgoing tpn 4 ways, ip-43 , supply and fixing bus bar chamber 100 amp, 4 way, 415 volts enclosurre is made from crca sheet of thickness 3.15mm crca sheet cover , supply and fixing of straight through epoxy cable joint kit incl jointing materials making joints of ug electric cable 1100 v grade nominal cross sectional area not exc.50 sqmm, 3.5 by 4 core , supply and fixing straight through epoxy cable joint kit incl jointing materials making joints of ug electric cable 1100 v grade cross sectional area 240 sqmm to 300 sqmm, 3.5 core. , supply and fixing end termination epoxy cable joint kit including jointing materials for making joints of ug electric cable 1100 v grade nominal cross sectional area 240 sqmm to 300 sqmm, 3.5 core , supply and fixing of galvanised iron pipe 100 mm bore dia light grade for protection of ug cable , supply of digging nad layingg in excavation trenches not exc. 1.50 m wide and not exc. 1.50 m in depth, complete all as specified and directed. , returning, filling in including spreading, levelling, watering and well ramming in layers not exc. 250 mm in soft loose soil , supply and fixing of galvanised iron pipe 40 mm bore dia light grade for protection of ug cable , supply, installation, commissioning and testing including providing all necessary electrical connection,lt feeder panel board of size 1.0 m x 0.6 m x ) /bid number : gem/2026/b/7568567 * /dated: 22-05-2026 & & / bid document 1 / 30 & & ' ' /item category 0.5 m , supply, installation, commissioning and testing including providing all necessary electrical connections lt feeder panel board of size 0.6 m x 0.6 m x 0.5 m , supply and fixing earhing complete with gi earth plate electrode of size 600x600x6mm thick.complete all as specified and directed in boq spec file , supply and fixing earhing complete with gi earth plate electrode of size 600x600x6mm thick. complete all as specified and directed in boq spec file , supply and fixing of sub-class b brick, well burnt, laid breadth-wise along the axis of cable laid in trenches over sand cushion laid for ug cable protection, complete all as specified and directed. , supply and fixing horizontal boring under a depth of 0.65 m from the gl for passing pipe upto 40 mm bore dia , supply of digging and laying of removing excavated materials soils not exc. 50 m and depositing where directed at a level not exc.1.50 m , taking down out unserviceable or serviceable lt ug cables of nominal cross-sectional area 300 sqmm including bricks, gi pipes etc. , taking down out unserviceable or serviceable lt ug cables of nominal cross-sectional area 50 sqmm 3.5 core including bricks, gi pipes etc. , supply of digging and laying of sand cushioning dry in trenches for protection of ug cables below, above and around the ug cable laid in trenches of 230 mm spread thickness , cutting road by hard standing and making good disturbed surfaces by using pcc type-c2,1-3-6 by using 40 mm graded stone aggregate , boring of holes under road,pavement,hard standing by trenchless technology using ultra sounding technique including hdpe pipe 150 mm dia suitable for 0.4 mpa working pressure , cutting chases, chipping in making good to facings, where required and pointing in cement mortar 1- 3 to ends or edges of landings, steps, sills, sunshades, shelves, lintels etc. , submain wiring comprising single core 2 runs of 6 sqmm nominal coss sectional area frlh

Central Government/Public Sector

CTN :45697300

16 Jul, 2026 20.00 Lacs

Akhnoor - Jammu And Kashmir

Tender For maint of road side lighting works and miscellaneous electrical items under ge n akhnoor. - labour for cutting/pruning of tree branches along security light pole around 2 mtr radius of security light fitting and removing from site including arrangement of t&p (i.e. axe, rope & ladder etc.) complete all as specified and directed., dismantling and taking down street light fittings/post top lantern/down lighter of any wattage/size for repair or replacement of burnt/worn out accessories or carrying to mes store and refixing after repair on required location complete all as directed.note: accessories or components needed for replacement shall be measured and paid separately under appropriate items., repairing of unserviceable led street light any make/model of 90 100 watt capacity by replacing compact led electronic driver suitable to operate on 120 to 270 volt, 50/60 hz ac supply, protection grade ip-66 with surge protection complete all as specified and directed., repairing of unserviceable led street light any make/model of 60 72 watt capacity by replacing compact led electronic driver suitable to operate on 120 to 270 volt, 50/60 hz ac supply, protection grade ip-66 with surge protection complete all as specified and directed., pvc conduit medium grade of size 15 mm bore including fittings, isi marked, fixing with pcc pole/steel tubular pole/garden lights/gate lights for wiring connection from pole box to light fitting and supporting with 03 nos gi strip clamp, nut & bolt, complete all as specified and directed., replacement of pvc insulated pvc sheathed stranded copper conductor cable 2.5 sqmm twin core complete all as specified and directed., pvc insulation tape of width 18 mm, thickness 0.125 mm, length 25 mtr, isi marked, for proper insulation of joints in wire where required or directed., replacement of aluminium pvc service wire 2 core 6 sqmm flat roll of 90 mtr, superior quality, complete all as specified and directed., disconnecting & dismantling of damaged/unserviceable cable of any type/make and supply & laying in repair/replacement of cable xlpe insulated, screened pvc bedded, galvanized steel strip or wire armoured electric power cables (heavy duty), 1100 volts grade with stranded aluminium conductor using lugs/ferrules at both ends of cable and testing complete all as directed for following sizes:, 10 sqmm 4 crore, 16 sqmm 4 crore, 25 sqmm 3.5 crore, 35 sqmm 3.5 crore, note for item no. 17 & 18: excavation & earth work, sand cushioning, bricks protection & gi pipe where required shall be measured and paid separately., excavation in trenches not exceeding 1.5 mtr width and not exceeding 1.5 mtr depth, getting out for electric cable complete in any type of soil complete all as specified and directed., removing surplus excavated soil to a distance not exceeding 50 mtr and depositing where directed at a level not exceeding 1.5 mtr above starting point, complete all as specified and directed., returning, filling in, soil obtained from excavation including spreading, levelling, watering and well ramming in layers not exceeding 25 cm thick, complete all as specified and directed., supply and laying sub class b bricks laid dry and flat across the length of cable for protection of cable complete all as specified and directed., sand cushioning with ganga sand to underground cable (8 cm thick before laying and 15 cm thick after laying the cable) complete all as specified and directed., replacement of 40 mm gi tubing light grade with all necessary fittings laid in trenches/under road crossing/fixed on pole/wall/under floor/as garden post including 2 nos mild steel fi clamps 35 3 mm size to support pipe with pole complete all as specified and directed., boring under road horizontally of size 40/50 mm bore using gi pipe for passing of cable in road/path in hard/soft/loose soil complete all as specified and directed., applying two coats of aluminium paint over a coat of red oxide on steel tubular po

CTN :45410518

27 Jun, 2026 NA

Multi City - Multi State

Tender For bid to ras supply of electrical item c c - bore bent to shape as required at site , supply and fixing of sub main wiring with three core 1.5 sqmm multi stranded copper conductor pvc insulated unsheathed frls cable 1100 volts grade , supply and fixing of solar street light fitting 12 watt having high efficiency mono crystalline solar pv module, lithium ferro phosphate battery with in-built bms technology, high efficacy led , supply and fixing of solar street light fitting 16 watt having high efficiency mono crystalline solar pv module, lithium ferro phosphate battery with in-built bms technology, high efficacy led , supply and fixing of solar street light fitting 20 watt having high efficiency mono crystalline solar pv module, lithium ferro phosphate battery with in-built bms technology, high efficacy led , supply and errection in replacement of steel tubular swaged pole 8.5 m long type 410-sp-22 complete with cl base plate , m and l for pcc 1-3-6 type c2 using 40mm graded aggregate crushed stone aggregate as in pole foundation, filling and mass concrete complete all as specified and directed. , m and l for plain cement concrete 1-2-4 type b1 using 20mm graded stone aggregate , supply of paint and painting of steel pole swan neck type or straight type up to 9 mtr height with two coat of aluminium paint after scratching out old paint , supply, erect and commissioning of high galvanized mast light of height 15 mtr, suitable for 6 to 9 lantern symmetrically fitted along with their control gear , m and l for boring of horizontal hole under road, pavement, hardstanding suitable for passing through upto 50mm bore complete all specified and directed. , replacement of unserviceable wire by cable from junction box to light fitting fixed on pole on existing pvc conduit by pvc insulated unsheathed copper conductor frls of 1.5 sqmm three core. , supply of laying and digging excavation in trenches n exc 1.5 wide and n exc 1.5 m in depth for foundation etc , returning filling in including spreading, leveling, watering and well ramming in layers n exc 25 cm complete all as specified and as directed , supply of digging and laying removal of excavated material by surplus soil to a distance n exc 50m and depositing where directed at a level n exc 50m above the starting point , supply and laying sand in trenches for protection of cable, sand cushioning to cable 8 cm thick below cable and 15 cm thick above cable in layers complete all as specified and as directed , supply and lay fly ash bricks best quality, laid in trenches, perpendicular to ug cable for cable protection complete all as specified and directed , laying only old bricks obtained from item no 13 perpandicular to ug cable for cable protection complete all as specified and directed. //bid details 2 / 35

CTN :45444726

02 Jul, 2026 NA

Dehradune - Uttarakhand

Tender For corrigendum : optical fibre cable construction work in uttarakhand for link no- 9

CTN :45578029

08 Jul, 2026 28.36 Crore

Multi City - Multi State

Tender For planning, design, construction, testing and commissioning, certification, validation of biosafety level-3 (bsl-3) laboratory (g plus 1 floor) in epc mode-i under pm-abhim for national centre for disease control (ncdc) at kims, hubballi, karnataka inclusive of (i) obtaining of all local body approvals, eia, consultancy services (architectural, structural & mep), modular pre-fabricated wall panel & pre fabricated ceiling panel, epoxy flooring, doors, drains, water supply piping in bsl-2/3 lab containment area, sanitary installation, internal roads, parking facilitation, ug sump, terrace water tank, water supply lines, storm water drains, external sewerage system, service trenches, demolishing of existing structure, retaining walls, internal electrical installations, fire alarm system, fire fighting system, lifts, sub station, dg sets, ups, air conditioning system (hvac & vrv/vrf), cctv, access control system , ibms, lan, ip based epabx system, audio visual system, boom barriers,subwork/packages:etp equipment and street lighting etc., (ii) design, supply, installation, testing and commissioning of all equipment for bsl-3 & bsl-2 lab. (iii) certification, validation, commissioning of bsl-3 lab facility from third party validation agency. (iv) operation of complete facility for 5 years, annual maintenance during 3 years defect liability period plus 2 years comprehensive maintenance of complete bsl-3 lab facility including all equipment after 3 years dlp including annual validation

CTN :45590727

27 Jun, 2026 NA

Jalpaiguri - West Bengal

Tender For supply of xlpe cable for working voltage up to and including 1.1 kv marked to is 7098 (part 1),lighting pole or post and hardware - tubular street light poles (v2),material and labour,testing,installation,repair,repair,welding,excavating in trenches,returning filling in,removing excavated material,material and labour,supply and laying,m l for,supplying and fixing,ml for cement,ml for pcc,disconnecting taking out,material and labour,testing,installation,repair,installation,electrical work

CTN :45587225

08 Jul, 2026 9.62 Lacs

Udhamsign Nagar - Uttarakhand

Tender For supply of supply, fabrication and construction of copper plate earthing details of electrodes and earth pit at akashvani jaspur, uttarakhand , providing of 50mm x 3mm copper strip and interconnecting earth electrodes with fabrication and fixing of 50mm x 3mm copper strip at akashvani jaspur, uttarakhand , providing and fixing of nomenclature sign marker for earth pits at akashvani jaspur, uttarakhand , providing of 25 mm x 3 mm copper strip for extension of earthing system up to the transmitter hall, ups and lt panel at akashvani jaspur, uttarakhand , copper strip laying for extension of earthing system up to the xtr hall, ups and lt panel and terminating in bus bar by digging the soil and placing the copper strip along the trenches at air jaspur , providing of 375x38x6mm copper bus bar with insulators and steel nut bolts and the fixing of 375x38x6mm copper bus bar is to be done to terminate the different earthing system at akashvani jaspur , making of trenches of size 700mm x 750mm for 185 sq mm 3.5 core starting from state electricity transformer to lt panel by digging the soil which includes cement concrete interlocking tiles , providing and grouting of 2 nos. of 4inch dia g.i. pipes of different length on the cement concrete flooring, road, and cement concrete interlocking tiles and along the vertical walls. , unwinding roll of 185 sq. mm 3.5core al. cable from their cable drum and laying the cable through the trenches and through the g.i. pipes as laid down at akashvani jaspur , reconstructing the cement concrete interlocking tiles floor and repairing the area with cement concrete interlocking tiles and finishing the surface at akashvani jaspur , providing and fixing of lt cable route marker made up of 2.5inch dia signage with 10mm x 2ft long ms rod from transformer to lt panel at akashvani jaspur , providing and fabricating of overhead shed for the installed 62.5kva dg set as per drawing at akashvani jaspur supply, fabrication and construction of copper plate earthing details of electrodes & earth pit as per given below: digging of pit of size: 1 mtr x 1 mtr x 3.5 mtr(d) providing of copper plate size 600 x 600 x 3mm. providing of copper strip of 50x3mm shall be extended from bottom of the earth pit to the surface of the earth pit, after joining the copper strip by copper rivets and proper brazing of strip to the copper plate. providing and fixing the 10ft. long 38 mm dia class c g.i pipe of reputed make such as surya, jindal or similar and fixing with the copper plate in the center with g.i/ ss nut bolts class c. one g.i. reducer at the top of the pipe is to be provided for fixing steel mesh for watering as shown in the drawing. placing the copper plate with pipe and strip into the pit. providing & filling of 2 nos. of bags of bentonite each of 50 kg. (for each earth pit.) providing & filling of 80kg charcoal, and 80kg raw salt in alternate 3 to 4 layers in each earth pit. the fresh soil about 2.0 cubic metre in earth pit size in layers is to be arrange to fill the pit for proper result. proper watering of the filled pit for initial charging of pits. providing of heavy duty c.i. cover with lifting hooks. construction of cc chamber in ratio 1:4:8 & fixing of heavy duty c.i. cover., providing of 50mm x 3mm copper strip and interconnecting earth electrodes with fabrication & fixing of 50mm x 3mm copper strip as per given below: i. 2 grid out of 6 pits for transmitter. ii. 1 grid out of 3 pits for audio. iii. power supply-3 pits separate (lt electrical panel, ups & isolation transformer, avr) iv. rf //bid details 2 / 25

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