REPAIR/MAINT/REPLACEMENT OF EARTHING INFRASTRUCTURE, STREET LIGHT, HANGER LIGHTS, MT HANGER AND POST TOP AND ALLIED WORKS AT 6 WING AF AREA UNDER GE (AF) BARRACKPORE

Amount

Supply and installation of advance encapsulated compound based CPRI tested maintenance free, pipe-in-pipe technology upgraded (zinc & alloy coated), zinc coating ( 80-100) microns with pure zinc (99.9%) & alloy coating (200-250)microns. Earthing system conforming to IS-3034. The outer and inner pipe should be 76.2 mm & 41.9 mm, 3mtrs length, zinc coated with additional special alloy coating 300mm on the top side for additional corrosion protection of the terminal. The annular space between the pipes being filled up with COMPACT FILL(CF) (Crystalline Conductive Compound). The COMPACT FILL (CF) mixture which is machine pressed in the pipes should not disintegrate or collapse when outer pipe corrodes. The inner pipe should be extended with terminals for connectivity. The job includes digging the pits of dimension 60cm X 60cm up to depth of 3.1m and replace the soil with low resistive soil as approved by Engr-in-Charge, then make a bore of dia 200mm of depth 3.1m and refilling the same by conductolite back fill compound (Ground Enhancer), the BFC should be eco friendly it should not contain environmentally hazardous material / metal having RoHS Certification from NABL accredited lab. Good earth is to be arranged to fill the excavated pits by mixing the same with BFC 2 bags including FRP (Fiber reinforced plastic) light weight, high mechanical strength, chemical resistance with detachable easy locking lid of size 250mm X 250mm of thickness 2mm,and the earthing should be installed by applicator of the manufacturer / authorised dealer including taking down old existing unserviciable earthing complete all as specified and directed. (Make : ASHLOK / MACKMET).

Supply and installation of advance encapsulated compound based CPRI tested maintenance free, pipe-in-pipe technology upgraded (zinc & alloy coated), ZINC COATED( 80-100)microns with pure Zinc (99.9%) & ALLOY COATING (200-250)microns. Earthing system confirming IS-3034. ASEEL -19 The outer and inner pipe should be of dia 76.2 mm & 41.9mm 2mtrs Length, Zinc coated with additional special alloy coating 300mm on the topside for additional corrosion protection of the terminal. The annular space between the pipes being filled up with COMPACT FILL (CF) (Crystalline Conductive Compound). The COMPACT FILL (CF) mixture which is machine pressed in the pipes should not disintegrate or collapse when outer pipe corrodes. The inner pipe should be extended with terminals for connectivity The job includes digging the pits of dimension 60cm X 60cm up to depth 2.1m and replace the soil with low resistive soil as approved by Engr-in-Charge, then make a bore of dia 200mm of depth 2.1m and refilling the same by Conductolite Back Fill compound (Ground Enhancer), the BFC should be eco friendly it should not contain environmentally hazardous material/metal having RoHS Certification from NABL accredited lab. Good earth is to be arranged to fill the excavated pits by mixing the same with BFC 1 bags (as per soil condition), including FRP (Fiber reinforced plastic) light weight, high mechanical strength, chemical resistance with detachable easy locking lid of size 250mm X 250mm of thickness 2mm, and the earthing should be installed by applicator of the manufacturer / authorised dealer including taking down old existing unserviciable earthing complete all as specified and directed. (Make : ASHLOK / MACKMET).

Material and labour for earthing complete with copper earth plate electrode of size 600 x 600 x 3.15mm thick buried directly in ground with earth pit not less than 2.25 meter deep below ground level with top edge of plate not less than 1.5 meter below normal ground level connected to copper strip of size 20 x 3mm earth lead by means brazing after fixing of nuts, bolts, check nuts, washers of galvanised iron steel, protected by galvanized iron pipe 40mm bore (medium grade) all as directed including cement concrete (1:3:6) type C-1 earth pit with precast RCC (1:1.5:3) type A-1 cover slab of size 42 x 42 x 10cm thick reinforced with 8mm dia TMT bars @ 15 cm c/c both ways with 10mm dia mild steel round bar of 30 cm long, bent to shape as lifting handle, funnel, wire mesh, 20 mm bore galvanized iron pipe (medium grade) for watering, earth testing point, charcoal or coke and salt in alternate layers with necessary earth work in soft/loose soil complete all as shown in electrical plate No 3 of SSR Part I including testing on completion including taking down old existing unserviciable earthing complete all as specified and directed. Note:- Strip upto 7.5m length including testing shall be included in quoted rates.

Material and labour for earthing complete with GI earth plate electrode of size 600 x 600 x 6 mm thick buried directly in ground with earth pit not less than 2.25 meter deep below ground level with top edge of plate not less than 1.5 meter below normal ground level connected to GI earth strip of size 32 x 6 mm earth lead by means of nuts, bolts, check nuts, washers of galvanised iron as steel, protected by galvanized iron pipe 40mm bore (medium grade) all as directed including cement concrete (1:3:6) type C-1 earth pit with precast RCC (1:1.5:3) type A-1 cover slab of size 42 x 42 x10cm thick reinforced with 8mm dia TMT bars @ 15 cm c/c both ways with 10mm dia mild steel round bar of 30 cm long, bent to shape as lifting handle, funnel, wire mesh, 20 mm bore galvanized iron pipe (medium grade) for watering, charcoal or coke and salt in alternate layers with necessary earth work in soft/loose soil complete all as shown in electrical plate No 3 of SSR Part-I including testing on completion including taking down old existing unserviciable earthing complete all as specified and directed. Note:- GI strip upto 7.5m length including testing shall be included in quoted rates.

Material and labour for earthing complete with GI earth plate electrode of size 600 x 600 x 6 mm thick buried directly in ground with earth pit not less than 2.25 meter deep below ground level with top edge of plate not less than 1.5 meter below normal ground level connected to GI wire 4 mm dia earth lead by means of nuts, bolts, check nuts, washers of galvanised iron as steel, protected by galvanized iron pipe 15 mm bore (medium grade) all as directed including cement concrete (1:3:6) type C-1 earth pit with precast RCC (1:1.5:3) type A-1 cover slab of size 42 x 42 x10 cm thick reinforced with 8mm dia TMT bars @ 15 cm c/c both ways with 10mm dia mild steel round bar of 30 cm long, bent to shape as lifting handle, funnel, wire mesh, 20 mm bore galvanized iron pipe (medium grade) for watering, earth testing point, charcoal or coke and salt in alternate layers with necessary earth work in soft/loose soil complete all as shown in electrical plate No 3 of SSR Part-I including testing on completion including taking down old existing unserviciable earthing complete all as specified and directed. Note:- GI wire upto 7.5m length including testing shall be included in quoted rates.

Material and labour for earthing continuity conductor or main earthing lead fixed to wall or recess or chases with 20 x 3 mm copper strip fixed on porcelin insulator at distance 45 cm including nut bolt drilling hole etc after taking down old unserviceable complete all as specified and directed. Note : Joining of copper strip shall be made by brazing after fixing of nuts & bolts.

Material and labour for fix in repair galvanised iron strip of size 32 x 6mm buried in ground complete all as specified and directed.

Material and labour in repair 40mm dia galvanised steel tubes (light grade) with fittings, laid in trenches / wall for protection of underground earth strip when crossing the road / fixing on wall complete all as specified and directed.

Material and labour for fabrication of display board for earth pit Nos, location and periodical test results for power circuit earthing, machinary earthing, lightening conductor earthing, made of GI sheet 4.0 mm thick, rectangular welding on 12 mm dia rod of minimum height from ground level 45 cm including fixing in PCC (1:2:4) type B1 (using 20mm graded stone aggregate) of size 20cm X 20cm X 10cm foundation to be carried out at different location dimension of board shall be 30 cm X 25 cm. The instruction shall be written black painted board in white letters not less than 2" size for all type of boards including taking down old existing unserviciable display board complete all as specified and directed. Note : (a) All necessary GI sheet, aluminium screws and PCC works etc shall be deemed included in the quoted rates. (b) The fabrication of contents on the screen printing should be collected before printing the board from Engineer-in-charge.

Material and labour for construction of earth pit made out of cement concrete (1:3:6) type C-1 (using 40mm graded stone aggregate) and cover slab made out of precast RCC (1:1.5:3) type A-1 (using 20mm graded stone aggregate) of size 42 x 42 x 10cm thick reinforced with 8mm dia TMT bars @ 15 cm c/c both ways with 10mm dia mild steel round bar of 30 cm long, bent to shape as lifting handle, funnel, wire mesh including dismantling of old existing earth pit complete all as specified and directed .

Material and labour for painting of earth pit chamber by two coats of synthetic enamel paint after cleaning earth pit properly with iron wire brush and indicating board as per colour code complete all as specified and directed.

Taking down of damaged GI / copper / aluminium strip including air termination of any specification and refixing the GI / copper / aluminium strip including air termination after repair in existing location complete all as specified and directed.

Material and labour for air termination single pointed copper rod,12mm dia and 300mm long including necessary fixing arrangment using clamps,nuts and nuts including taking down old unserviceable air termination rod complete all as specified and directed.

Material and labour for test point termination box made of gun metal or phosphorus bronze size 75x75x25 mm drilled and screwed including 3 Nos, 8 mm dia, 25mm long hexagonal heads screw for lighting conductors including taking down old existing unserviciable termination box complete all as specified and directed.

Supply and fix in repair porcelain insulator for supporting or passing or copper strip from roof / wall including necessary nuts and bolts complete all as specified and directed.

Excavation in trenches not exceeding 1.5 mtr wide and not exceeding 1.5mtr in depth and getting out in soft/loose soil for laying of under ground cable complete all as specified and as directed.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exc. 250mm in soft/loose soil, complete all as specified and directed.

Removing excavated materials (soils) not exc. 50.00 mtr and depositing where directed at a level not exc. 1.50 mtr above from starting point complete all as specified and directed.

Material and labour for PCC (1:4:8) type D-2 (using 40 mm grade stone aggregate) as in foundation filling of pole complete all as specified and directed

Material and labour for PCC (1:3:6) type C-2 (using 40 mm grade stone aggregate) as in foundation and mass concrete complete all as specified and directed

Material and labour for PCC (1:2:4) type B-1 (using 20 mm grade stone aggregate) for coping of pole including form work complete all as specified and directed

Materials and labour for boring of holes of size up to 50mm dia under road without disturbing the top surface of the road and taxiway for passing through the cable complete all as specified and directed Note-Necessary infrastructure required for boring shall by arranged by the contractor and cost of the same included in quoted rates.

Supply, laying, connecting and testing XLPE insulated, PVC sheathed, armoured LT electric power UG cable (heavy duty with stranded aluminum conductor) of size 16 Sqmm, 4 core, 1100 Volts (earthed) grade, confirming to IS-7098 (Part-I) laid through duct/ pipe / in trench etc. with cable glands & suitable size of aluminium lugs including taking down old unserviciable existing cable complete all as specified and as directed. Note : Earth work, brick protection and sand cushioning and GI Pipe Shall be measured and paid separately under respective item.

Material and labour for sand cushioning with clean and dry river sand for protection of PVC cable with approved sand of uniform thickness. laid dry, filling in trenches and punning down in proper required layers complete all as specified and as directed. Note:- Punned down thickness shall be measured for payment.

Materials and labour for brick protection cover to underground cables with sub class ‘B’ of size 23 X 11.5 X 7.5 cm, (locally available best quality), laid dry and flat abutting each other with gaps not exceeding 10mm complete all as specified and as directed.

Material and labour for cutting the road/hard standing and making good disturbed surfaces by using PCC (1:3:6) type C-2 (using 40 mm graded stone aggregate) for fixing the pipe complete all as specified and directed.

Supply and fix in repair galvanised iron pipe 20mm bore (light grade) for protection of UG Cable, laid in floors / road crossing, fixing to pole with mild steel clamps, nuts, bolts, etc. complete all as specified and as directed.

Supply and fix in repair cable junction box 210x155x92mm in size, for 10-16sqmm cable size, made out of thermoplastic sheet having IP-66 protection for outdoor installation fixed with 4 way bakelite cable terminals including 03 Nos polymide gland with check nut (M-32 - 2 nos) fixed on poles with flat iron clamps of size 25x3mm, nuts, bolts, washers etc. complete all as specified and as directed.

Material and labour for PVC sheathed copper cable of 1.5 sqmm, multistranded for connection of security light from junction box to security light including taking down unserviceable existing cable complete all as specified and directed.

Material and labour for rigid non-metallic PVC conduit pipe of 20mm dia (heavy grade) for pole wiring length from junction box to security light including necessary flat iron clamps 20 x 3mm dia, nuts & bolts etc. including taking down unserviceable existing PVC conduit complete all as specified and directed.

Material and labour for street light bracket made of 1.5 meter long GI pipe of medium grade of 40 mm dia in proper shaped, bend, threaded and drilling holes for wire entry and MS clamps of flat iron of size 25X3mm of suitable length in 2 pairs incl nut bolts etc of suitable size including taking down old unserviciable street light bracket cmplete all as specified and directed.

Supply and fix steel tubular swaged poles, type 410 SP 31 (overall length 9.00 meter) conforming to IS-2713 (Part 1 to 3) 1980 complete with cast iron base plate, finial taper plug, bolts, nuts and washers, screws. Pole shall be painted with two coats of black bituminous paint throughout internally and externally upto planting depth and the remaining external portion shall be painted with two coats of aluminum paints over a coat of red oxide primer, painting black & yellow alternate strips of 30cm each externally from ground level upto 1.2m with synthetic enamel paint, numbering of poles including taking down old unserviciable existing electric pole complete all as specified and as directed. Note: Excavation and earth work and PCC shall be measured and paid separately under respective items.

Materials and labour for painting of LT electric pole, steel tubular swaged pole (9 mtr long) of any size, any pattern with one coat of aluminium paint in full length of the pole and marking the pole with black and yellow strip (upto to 1 mtr length, 1 mtr height of PCC coping) alternatively including numbering the pole serially complete all as specified and directed.

Materials and labour for painting of LT RCC electric pole (9 mtr long) of any size ,any pattern with one coat of weather proof acrylic synthetic paint and marking the pole with black and yellow strip (upto 1 mtr length from ground) alternatively including numbering the pole searially complete all as specified and directed.

Materials and labour for 50mm dia HDPE pipe PN-10 with fittings laid in trenches/wall for protection of underground cable when crossing the road / fixing on wall including taking down old unserviciable existing pipe complete all as specified and directed.

Supply and fix in repair 60 Watt LED street light fitting made with pressure die cast housing with toughened glass with high powered LED, IP-66, 5700K, 230 Volt complete all as specified and directed. Make:- Crompton Cat No TRP-409-60-57-SL-GL-NSG or equivalent model of Philips / Bajaj / Havells / MAGIK.

Supply and fix in repair 45 Watt LED street light fitting made with pressure die cast housing with toughened glass with high powered LED, IP-66, 5700K, 230 Volt complete all as specified and directed. Make:- Crompton Cat No TRP-409-45-57-SL-NS-GL-NSG or equivalent model of Philips / Bajaj / Havells / MAGIK.

Supply and fix in repair 200 Watt rectangular LED flood light fitting made up of pressure die cast aluminum housing with toughened glass and high power LED ,IP- 66, 230 Volt, IP-66, 5700K complete all as specified and directed. Make:- Crompton Cat No CFS-501-200-57-60D-SL-GL-NGG or equivalent model of Philips / Bajaj / Havells / MAGIK.

Supply and fix in repair 10 watt garden light fitting with inverted pyramid type LED bollard with soft 360° light distribution, 5000K, IP-65, 240 Volt, fixed in foundation of sizes 250x250x300mm with PCC 1 (1:2:4) type B1 (using 20 mm graded stone aggregate) complete all as specified and directed. Make:- Crompton Cat No LBLSN-10-CDL or equivalent model of Philips / Bajaj / Havells / MAGIK.

Supply and fix in repair 10 watt garden light fitting with pressure die cast powder coated housing with PC diffuser high output LED, IP-65 protection, 5000K, 240 Volt, fixed in foundation of sizes 250x250x300mm with PCC 1 (1:2:4) type B1 (using 20 mm graded stone aggregate) complete all as specified and directed. Make:- Crompton Cat No LBLA1-10-CDL or equivalent model of Philips / Bajaj / Havells / MAGIK.

Supply and fix in repair 10 watt post top light fitting pressure die cast heat sink, IP-65, 240 Volt, 5700K complete all as specified and directed. Make:- Crompton Cat NoLPTH-20-CDL or equivalent model of Philips / Bajaj / Havells / MAGIK.

Supply and fix in repair power contactor 3 pole 65 Amps complete all as specified and directed.

Supply fix in repair MCCB TPN of 4 pole type, 125 Amps current capacity, 25 KA breaking capacity, 415 Volts complete all as specified and directed.

Supply and fix in repair MCB, 4 pole, 63 Amps current capacity, 10 KA breaking capacity, 'C' series, 415 Volts complete all as specified and directed.

Taking down PCC / steel tublar pole upto 9.00 meter long, shifting the pole at different location and refixing the pole complete all as specified and directed. Note- Excavation, PCC work will be measured and paid seprately under respective items.

Materials and labour for for Cross arm bracings, supports, clamps and back plates fabricated from structural steel sections including nuts, bolts, washers, welding, bending cold or hot, drilling holes for bolts, in any shape or size as indicated or directed and inclusive of two coats of aluminium paint over a coat of zinc chrome primer including dismantling of undersize / defected cross arms of M.S. channel or angle of any sections complete all as specified and as directed.

Supply and fix in repair of automatic street light switch using nature switch for automatic switching of street light based on LUX level on nature light. The infrared sensor based nature switch along with lighting load 5-8 KW, with suitable power contractor and MCBs of suitable rating should be enclosed in pole / wall mountable enclosure made of rust proof, termite proof and FR grade SMC junction Box confirming to IP-54 fixed to pole by using MS clamps fabricated out of 25x3mm thickness, bolts and nuts as required at site and connected to street light over head / under ground feeder astronomical time switch consisting of nature switch- 02 Nos + contractor + MCB etc housed in a pole mountable enclosure complete all as specified and directed. Make- Swadeep, Cat No. SWADEEP 02 EC 5 KW 3 phase or equivalent madel of Make Kaktiya Energy System /Havells / Bajaj / L&T / CG. Note- Quoted rate shall be included for sensor, contactor, incoming- outgoing MCBs, Enclosure etc.

Oenix and associates

BUSINESS SYNDICATE

Electro Builders

NARAYAN BUILDERS

MERCANTILE AGENCY

BARRACKPORE ENTERPRISE