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| 1 | S&F of Aluminium composite panel (ACP) of 3/4mm thick sheet coated mirror glossy finish/ Natural wood finish of approved colour, pattern & design & as required shape like rectangular, trapezoidal or tapered curved shape (colour, shade, texture as per sample approved by GE and sample kept in GE office) with Poly Vinylidene Fluoride (PVDF) of flat panel that consist of two thin aluminium sheets (0.5mm thick) bonded to a non-aluminium core of flat sandwich panel is a structure of three layer aluminium core bonded between two sheets of required size fixed with heavy duty screws on aluminium chanel rectangular section of size 38mm X 25mm thickness 2mm for vertical & horizontal frame work or equivalant section with respect to weight, and used for external cladding or facades, partition, false ceiling, signage, etc. The joints to be filled with silicon seelant of translucent, white or black in colour with the help of portable punch machine work pneumatically after cutting the carners and edges. A protective film on ACP is removed after installation complete all as specified and directed |
| 2 | Demolition to stone slab and granite of any description or thickness in floors/wall etc complete all as specified and directed. |
| 3 | Demolition of reinforced cement concrete of any description and in any position not otherwise specifically providedfor (reinforcement cut to facilitate demolition) complete all as specified and directed. |
| 4 | Demolition of brick work masonry built in cement mortar complete all as specified and directed |
| 5 | Excavating over areas, n exc 1.5 m deep and getting out any type of soil complete all as specified and directed |
| 6 | Excavating in trenches, n exc 1.5 m wide and n exc 1.5 m in depth; for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, etc. n exc 10 sqm on plan and n exc 1.5 m in depth and getting out any type of soil complete all as specified and directed |
| 7 | M&L for PCC 1:4:8 type D2 (using 40mm graded stone aggregate) as in foundations filling and mass concrete complete all as specified and directed |
| 8 | M&L for Formwork to sides of concrete foundations, footings, bases of columns, raft and raft beams, sides and soffits (if any) of foundation and plinth beams; and similar work; vertical or to batter for flat rough finished surfaces of concrete complete all as specified and directed |
| 9 | M&L for Formwork to sides of pillars, posts, struts, piers, columns and stanchions Rough finished surfaces of finished concrete complete all as specified and directed |
| 10 | M&L for Formwork to sides and soffits of floor or roof beams, beam haunchings, girders, bressummers, lintels, cantilevers, shelves including sup- ports, overhangs, etc. also splays between floors and beams, etc.curved rough finished surfaces of finished concrete complete all as specified and directed |
| 11 | M&L for RCC (Nominal mix) type B1, 1:2:4 (using 20mm graded stone aggregate) as in Foundations, including rafts, footings, foundation beams; plinth beams; bases for columns, etc.; basement slabs, under-reamed piles and mass concrete complete all as specified and directed |
| 12 | M&L for RCC (Nominal mix) type B1, 1:2:4 (using 20mm graded stone aggregate) as in Columns, pillars, piers, posts and struts complete all as specified and directed |
| 13 | M&L RCC (Nominal mix) type B1, 1:2:4 (using 20mm graded stone aggregate) as in Beams, cantilevers, bressummers, lintels over 1.5m span etc complete all as specified and directed |
| 14 | S&F for TMT bars 10mm dia and over, cut to length, bent to shape required, including cranking,bending spirally for hooping for columns, hooking ends and binding with and including mild steel wire (annealed) not less than 0.9mm dia or securing with clips complete all as specified and directed |
| 15 | All as per item No 14 here in before but 5mm dia and over upto and including 10mm dia in stirrups, spacers and binders complete all as specified and directed |
| 16 | Returning, filling in, including spreading, watering and well ramming in layers n.exc 25 cm thick using soils complete all as specified and directed |
| 17 | Removal of excavated (soil) and bldg material (stone/cement mortar/concrete/etc) for a distance exc 5KM but n.exc 10KM and depositing outside the defence premises on desecration of Contractor, complete all as specified and directed |
| 18 | Dismantling wrought iron or mild steel work of any description not otherwise provided for, complete all as specified and directed |
| 19 | S&F for Structural Steel work in tubular trusses, frame etc including special shaped washer etc. complete using ERW or induction butt welded tubes conforming to IS.1161- 1979 grade St.-240, steel Fe 410 -W (Gde E- 250) quality A complete all as specified and directed |
| 20 | S&F for Roof trusses (framed), trussed, purlins, crane gantries, rails and fastenings and heavy bracket framing (Beam, tee, angle, channel or flat sections) including distance pieces, cleats etc Fe 410-W (Gde- E- 250) quality-A complete all as specified and directed |
| 21 | Dismantling to MS gates (Double shutters) area of gate exc 3 sqm but n.exc 6 sqm each gate shutter and refixing to same with necessary repair required weliding/erection works like cleats, fastener, angle backets, bearings, wheels, joints etc and also incl to apply of two coats of synthetic enamel paint complete all as specified and directed |
| 22 | S&F \"RAJSHRI\" brand factory made combining WPC board/Fancy designer type grating/jali and WPC frame 100% solid WPC (wood polymer composite), comprising of virgin PVC resin of K value 58-60 (Suspension Grade), Calcium Carbonate and natural fibers (Wood Powders/rice husk/ wheat husk) and non toxic additives, made from single extrusion process, WPC foam board with having minimum density 780KG/cbm manufactured by \"RAJSHRI\" an ISO 9001-2015 certified Company, having good screw holding capacity (screw withdrawal strength of 2000N (face) & 1100N (Edge) Minimum comprising of 50N/mm2, Modules of elasicity 850N/mm2 and resistance of speed of flame of class A category with property of being termite/ Borer free water / Moisture proof and fire resistance. For WPC jali to be fixed with WPC frame of size 75x50mm with necessary suporting lengths at vertical as well as horizontal at wall frames to be fixed with 3\"x3\" GI \"L\" or SS cleats to support vertical frame lengths complete all as speified and as directed. (Make : RAJSHREE or equivalent)(Note : The said item shal be fixed over boundary walls/roof tops and in any other positions as requirement at site) |
| 23 | M&L for stone cladding on wall (Slate stone wall cladding tiles, 10-15mm thick) with machine cut edges, uniform colour of each stone size not exceeding 0.25 sqm fixed with and including, polishing, rubbing complete all as specified and directed |
| 24 | S&F in repair for Stainless steel letters of stainless steel 304 grade (Letter size 6\" height and upto 2\" depth or as approved by GE) placed on sign board, gate pillar, granite stone etc including all fittings and fixtures for fixing of letters, complete all as specified and directed |
| 25 | S&F Rolled mild steel Plates (plain or chequered) channels, square cut or notched (ordinary and counter sunk) forming holes, without any attachmentFe-290 (Gde E 165) complete all as specified and directed |
| 26 | S&F for Mild steel screw bolts Dia of neck in 16-20mm (machine made) with hexagonal or square heads at one end and screwed the other, or screwed both ends, each screwed end to be fitted with washers and one hexagonal or square nut, exc 15cm and n exc 25cm long comple all as specified and directed |
| 27 | S&F for Mild steel screw bolts Dia of neck in 16-20mm (machine made) with hexagonal or square heads at one end andscrewed the other, or screwed both ends, each screwed end to be fitted with washers and one hexagonal or square nut, exc 10cm and n exc 15cm long comple all as specified and directed |
| 28 | M&L brick work with sub class B bricks straight or curved on plan exc 6 m mean radius built in cm 1:4 complete all as specified and directed |
| 29 | M&L for 10 mm thick cement plaster in cement mortar 1:4 on concrete or brick surface and finished even and smooth w/o using extra cement complete all as specified and directed |
| 30 | M&L for 16-18mm thick Granite (of any type) work (table rubbed and polished) in steps, jambs, pillars, window-cills, cooking platforms, cladding and like in cement mortar (1:4) including pointing in white cement (1:2) us in granite dust with admix ture of pigment to match with shade of granite and including 15 mm Screed bed or bedding layer or backing coat of CM 1:4 complete all as specified and directed |
| 31 | S&F mild steel framed work such as grills, gratings, etc, with ends of bars shouldered and/or riveted, or forged into spikes : framed guard bars, barred iron doors, ladders framed balusters, walk ways, railings, frame work of water tanks and similar work conforming to Fe.290.Gde-E-165 complete all as specified and directed. |
| 32 | S&F Framed brackets of angles or tees with web and flanges cut to shape, drilled and countersunk for screw, including bending and welding angles, as necessary,gusset plates, riveting, etc. n exc10 kg each brackets, conforming to Fe.290.Gde-E-165 (Brackets over 10 kg each to be measured under \"Structural Steel\") complete all as specified and directed. |
| 33 | M&L for Preparation of new steel surfaces and applying two coats of synthetic enamel paint over a coat of red oxide primer complete all as specified and directed |
| 34 | Demolition of cement concrete (unreinforced) of any description and in any position not otherwise specifically provided for, complete all as specified and directed |
| 35 | M&L for 40 mm thick PCC 1:2:4, type B-0 (using 12.50 mm graded crushed stone aggregates) as in floor surfaces, complete all as specified and directed. |
| 36 | M&L for 50 mm thick PCC 1:3:6 type C-2 (using 40 mm graded stone aggregate) as in plinth protection, path/hardstanding/subbase etc complete all as specified and directed |
| 37 | M&L forPCC 1:2:4 type B1 (using 20mm graded stone aggregate) mixed with water proofing compound as per manufacturer instructions laid 40mm avg thickness as in padding over roof slabs for providing proper slope to the concrete padding, surface finished even and smooth without using extra cement complete all as specified and directed |
| 38 | M&L for Pre polished Machine cut kota stone flooring 20-22mm thick over cement screed base laid and jointed with grey cement slurry mixed with pigment to match the shade of the slab,and including 15 mm Screed bed or bedding layer of CM 1:4 complete all as specified and directed |
| 39 | M&L for 50mm thick Cement concrete type D 2, 1:4:8 (using 40mm graded stone aggregate) in sub bases, sub floors etc. complete all as specified and directed |
| 40 | M&L for Sand filling or sand cushioning under floors/paved surface or in foundations including watering and consolidation complete all as specified and directed. |
| 41 | M&L for Machine pressed precast concrete interlocking paver block any shape and size confirming to IS 15658-2006 of 80 mm thickness, M-40 Grade with grey cement and pigment laid, including dismantling of old damage paver blocks complete all as specified and directed. |
| 42 | Taking down cement or cement lime plaster on brick walls incl racking out joints hacking for key scrubbing down with water etc complete all as specified and as directed |
| 43 | M&L for rendering 5mm thickin CM 1:3 on ceiling surfaces finished fair and even smooth without using extra cement complete all as specified and directed |
| 44 | M&L for preparation of new plastered or unplastered surface and applyingthree coats of white wash on ceiling complete and all as specified and directed. |
| 45 | M&L for complete removal of existing treatment on external & internal wall surfaces (old plastered surfaces) complete all as specified and directed |
| 46 | M&L for preparation of new surfaces of walls, and applying two coats of distemper oil emulsion over a coat of alkali resistant primer on wall surface complete all as specified and directed |
| 47 | M&L for preparation of new surfaces of walls, and applying Two or more coats of 100% Premium acrylic emulsion paint having VOC less than 50 gm/litre and UV resistance as per IS 15489:2004, Alkali & fungal resistance, dirt resistance exterior paint of required shade (Company Depot Tinted) with silicon additives @ 1.43 litre/ 10 sqm over and including priming coat of exterior primer applied @ 0.90 litre/ 10 sqm over new surfaces. to four story bldgs complete all as specified and as directed. |
| 48 | M&L for PCC 1:2:4 type B1 (using 20 mm graded stone aggregate) as in lintels upto 1.5m clear span, cills, steps; seismic and other similar bands, plinth courses, string courses, lacing courses, parapets and railings upto 60 cm in height, copings, kneelers, apex stones, bed plates, kerbs not provided for in Item 04028, watertroughs and the like including weathering, slightly rounded or chamfered angles and throating, complete all as specified and as directed. |
| 49 | M&L for rendering 15mm thick in CM 1:4 on fair faces of brick work or concrete surfaces finished even and smooth with out using extra cement upto four storey complete all as specified and directed |
| 50 | M&L for preparation of new plastered or unplastered surface and applyingtwo coats of cement base paint over a priming coat of surface complete all as specified and directed. |
| 51 | S&F in repairs Galvanised, 2 strand, steel barbed wire 2.24 mm dia barbed with 2mm dia barbs at 75mm spacing and strainning and fixing to any type of strandred rails strainning bolts, incl securing or tying at crossings with and provn of galvanised mild steel wire, staples or steel pins etc, as directed (each line wire to be measured) complete all as specified and directed. |
| 52 | S&F factory made SFRC manhole / drain cover (Grade M-25) heavy duty coverslab in rectangular shape of size as required, 80 mm thick incl MS sheet 2 mmthick and 80 mm wide all around the cover complete all as spefcifiedanddirected |
| 53 | S&F in repair stainless steel (Grade 304) railing made of hollow tubes, channels, plates etc., including welding, grinding, buffing, polishing and making curvature (where ever required) and fitting the same with necessary stainless steel nuts and bolts complete, including fixing the railing with necessary accessories & stainless steel dash fasteners, stainless steel bolts etc., of required size, on the top of floor or the side of waist slab with suitable arrangement, complete all as specified and directed |
| 54 | Dismantling plain or corrugated steel sheeting any gauge, thickness, including Nainital or similar patternroof coverings. complete all as specified and directed |
| 55 | M&L Pre- painted galvalume aluminum zinc coating GI based corrugated steel sheet 0.50mm thick of an colour having tensile strength of 550 Mpa as in roof covering/cladding to wall, fixed with self tapping screws complete all as specified and directed |
| 56 | M&L Pre- painted galvalume aluminum zinc coating GI based plain steel sheet 0.50mm thick in ridges of an colour having tensile strength of 550 Mpa as in roof covering/cladding to wall, fixed with self tapping screws complete all as specified and directed |
| 57 | Taking down carefully copper/aluminium point wiring light ,fan, light fittings,socket or power complete,such as switches, ceiling roses,pendents, regulators, sockets etc.removing materials to store for keeping in safe costudy or for taking credit (credit for above items should be made as per conditioned separately) and making good disturbed surface of walls, floors etc. complete all as specified and directed by Engineer-in-Charge. |
| 58 | M&L for concealed point wiring with single corePVC insulated unsheathed 1100 volt grade cable with multi strand copper conductor of size 1.5 Sq mm FRLS (Nominal area) drawn through and including non metallic rigid PVC conduit, medium grade, ISI markednot less than 20mm dia, with all fittings including Tee, Junction boxes and provision of Modular Metal flush boxand White plate with frame of suitable module for mounting switch sockets and regulators and drawing continuous earth wire ofPVC insulated unsheathed 1100 Volts grade cable withstrandedcopper conductor of size 1.5 Sq mm (Nominal area) for one light point controlled by one SP switch complete all as directed.Note :- (i) ModularMetal flush boxand White plate with frame of suitable module also included in the unit quoted rate of item. (ii)The wiring shall be provided in standard colour code i.e. Red for Phase, Black for neutral and Green for earth.(iii) The quoted rate is deemed to include for cutting/chasing for concealing the conduit and making good the surface to match the existing surfaces.(iv) In case of ceiling portion where concealed conduiting is not possible, the surface conduit shall be provided as directed.(v) The earth wire shall be connected to common earth and each terminal boxes and fitting all as directed |
| 59 | All as per item No-58 above butone fan/exhaust fan and wall mounted fan point controlled by one SP switch. |
| 60 | All as per item No-58 above but for one 3 pin socket out let, 6 Amps on Independent board |
| 61 | All as per item No-58 above but for one 3 pin socket out let, 6 Amps on same board |
| 62 | All as per item No 58 above but with 2.5 Sq mm cable for Independent bd one 3 pin 15 Amps socket outlet including S/C 2.5 Sq mm PVC insulated copper conductor unsheathed 1100 v grade IS -694 FR LS cable for continuous earth wirerequired size all as specified and directed by Engineer-in-Charge. |
| 63 | S & F Modular switch 1 way 6A, 1 modules suitable for 240 volt AC Complete all as specified and directed. |
| 64 | S & FModular Socket, 6A - 3 pin combined 2 module,suitable for 240 volt AC Complete all as specified and directed . |
| 65 | S&FModular switch 1 way 16A, 1 modules suitable for 240 volt AC Complete all as specified and directed . |
| 66 | S & FModular Socket, 16A - 2/3 pin combined 2 module,suitable for 240 volt AC Complete all as specified and directed. |
| 67 | Supply and fixing High density 3x3 PVC Gang Box with poly packingfor easyfitment of switch and socket complete all as specified and directed by Engineer-In- Charge. |
| 68 | S&F ceiling rose surface PVC / Polycarbonate isolated body 65x50 mm type with three terminals all as directed. |
| 69 | Supply, laying and testing cable XLPE Insulated ,screened, PVC bedded, galvanized steelwire armoured, electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor including cable glands, cable lugs etc. to suit the cable size, laid in trenches, fixed along the poles bare or through G.I. Pipe laid under floors road etc;fixed concealed in walls encased in G.I. Pipe etc of size 6.0 sq mm 2 core complete all as specified and as directed. |
| 70 | Supply, laying and testing cable XLPE Insulated ,screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor of size 10.0 sq mm 4 core complete all as specified and directed. |
| 71 | Excavation in trenches in hard and dense soil n exc 1.5 mtr wide and n.exc 1.5 mtr in depth for laying of pipe,foundation for poles, stay, laying cables etc and getting out complete all asspecified and directedby engineer-in-charge. |
| 72 | M&L for Sand cushioning of cables provided with a layer of sand 8 cm deep before laying the cable and 15 cm depth after punning down and stretching the cable copmlete all as directed by engineer-in-charge. |
| 73 | Supply and layingwell burnt sub class ‘B’ bricks old size as mechanicalprotection to under ground cables laying across the cable copmlete all as directed |
| 74 | Supply and fixingwall mounted LEDbatten extruded aluminium heat shrink provided for efficient heat dissipation and integrated electronic driver ,20 watt LED fitting with 100 lumen/watt, 6000K , 230 Volts, diffused optics ,etc complete with all accessories , connecting up with twin core twisted flexible copper conductor cablefrom ceiling rose to fitting,and testing complete all as specified and directed by the Engineer- In- Charge. Make: Havells cat part No-ENDURALINEARNEOBS20WLED865SPCWH or equivalent in Halonix/ Crompton Greaves. |
| 75 | Supply and fixing ultra slimsurface decorative 15 watt with 100 lumen/watt, 6000 K ,230 volt, LED ceiling fitting,complete with all accessories , connecting up with twin core twisted flexible copper conductor cablefrom ceiling rose to fitting, and testing complete all as specified and directed by the Engineer-In- Charge. EDGEPRORDDLR15WLED840S or equivalent inHalonix/Crompton Greaves |
| 76 | Supply and fixing contemporary UFO shape designbollardlightwith minimum upward light componenetin die-cast aluminium bottom housing with decorative clear acrylic 10 watt and IP65 protection including necessary fixing arrangement like PCC foundation work and electric connection for all light as per site requirement complete all as specified and as directed by Engineer-in-Charge. Make Havells UFOBLS10W LED830PSYMTOPC and Surya Flash LED / Wipro LB12-131-XXX-65-08 Note :- The Rates for 2.5 Sq mm 3 core copper wire for light connction and PCC foundationsize 1.5\"x1.5\"x1\" are included in quoted rates and quantity as per site requirement. |
| 77 | Supply and errect pole 3.5 mtr long, with PU Paint with aluminium casted base & embellishmentcasted, with PU coating of approved colour along suitable for pendant light upto 45 W as per direction.The pole shall be mounted on RCC pedestalas per design and drawing prepared by the manufacturer including pendent light 45watt all asper the following specifications:- (a) Top dia 60 mm(b) Casted dia 114 mm and base 250mm base ht (c) Cement concrete 1:2:4 type B1 for foundations up of size 2\"x2\"x2\"PCC from ground level with proper fixing arrangments such as nut/bolts/washers over PCC work all as specified and directed.(d) The Rates for 2.5 Sq mm 3 core copper wire for light connction are included in quoted ratescompleteMake-Halonix Cat No. HLOP-95-3.5M-114/60-GI-ACB Make Halonix or same design in Philips / Bajaj / Crompton/ Havells. energy efficient 45 W LED IP65 pendant mounting street light aluminium die cast with clear acrylic front cover suitable for high efficient assymetric secondary lens LM80 certified for higher power 240 V, lumen 100 lm/W and driver efficiency 85% with all accessories internally prewired and including connecting up with twin core copper conductor cable complete all as specified and directed.Make-Halonix Cat No. - HOSL-04-45-WWL-01 or same design in Philips / Bajaj / Crompton/ Havells. |
| 78 | S&F in exhaust PVCexhaust fan250 mm sweepWhitesturdy engineering plastic complete with louvers shutter including necessary fixing arrangement for proper fixing in wall and making hole as per site requirement complete all as specified and as directed by Engineer-in-Charge. |
| 79 | S&F single pole and neutral enclosure with a two pin and earth plug and socket complete with one single pole 240 voltMCB 20 amps. |
| 80 | S&F wall mounted fan of 400 mm sweep, 03 blades aerodynamically balanced with 60 degree oscillation, air delivery not less than 55 M3/Min, 1350 RPM, 230 V, 50Hz and Noise level not more than 64 dB with 2 years warranty complete all as specified and directed.including necessary fixing arrangement for proper fixing in wall as per site requirement complete all as specified and directed. |
| 81 | Supply and fixingin replacement MCB distribution board with Bus bar 200A neutral link ,earth bar made out of CRCAmild steel sheet surface mounting SPN8 way 230 volts double door type complete all as specified and as directed by Engineer-in-Charge.Note :- MCB shall be measured and paid seperately. |
| 82 | Taking down old unsv SPNDB of any size complete all as specified and directed. |
| 83 | M&L forearthing complete with GI earth plate electrode 60cmx60cmx6.3mm thick buried directly in ground (earth pit not less than 2.25 meter deep below normal ground level) with top edge of the plate not less than 1.5 meter below normal ground level, connected to and including galvanized iron strip4 mm dia as earth lead by means of GI bolts, nuts, check nuts and washers earth pit surrounded by picked layer of coal dust and 15 mm thick mixture in equal ratio of magnesium sulphate& copper sulphate in all around bottom and top and watering pipe 20mm bore of GI medium grade with funnel all as shown in electrical plateNO 5 of SSR Part I (1991)and connecting to earthing test point, including CI cover, frame and PCC (1:3:6) type C-2 using 20mm graded stone aggregate as in earthing pit with CI cover and framing including necessary earth work etc, complete all asspecifiedNote :- PCC chamber shall be constructed at least one meter away from building shall be provided in slanting manner. Note:- PCC pit cover shall be precast of RCC 1:2:4 type B-I 80 mm thick reinforced with XPM weighting not less than 4 Kg (sqm in liew of CI) |
| 84 | M&L in replacement of earth contuinity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit / pipe or fixed to poles or any other indicated situation for loop earthing etc as required 4 mm dia galvanized iron or steel wire complete all as specified and directed |
| 85 | Taking down unserviceable SP/ SPN MCBs of any capacities from the MCB DBs after disconnecting the electric supply complete all as specified and directed. |
| 86 | S&F MCB SP 6 to 32 Amps 10 KA, 240 volt \"C\" Series complete all as specified and directed by engineer-in-charge. |
| 87 | S&F MCB SPN40 Amps 10 KA, 240 volt50 HZ \"C\" Series complete all as specified and directed by engineer-in-charge. |
| 88 | Taking down aluminium strip from roof conductor and down conductor complete and cleaning the workable strip reuse and rest strip as a schedule of credit to the contractor complete all as specified and directed by Engineer in Charge. |
| 89 | Supply & fix aluminium strip 25x3.0mm with saddles / insulatorand fixing screws etc.for roof conductors and down conductors above ground (insulator to indulsotr distance should not be more than 50 CM) complete all as specified and directed by Engineer in Charge. |
| 90 | Supply & fix in replacement air termination single pointed aluminium rod 12mm dia and 300mm long and all fixing arrengement complete all as specified and directed. |
| 91 | Supply & fix in replacement test point terminal block made of gun metal or phosphorous bronze size 75x75x25mm drilled and screwed includind 3 nos 8mm dia 25mm long hex.head screw complete all as specified and directed. |
| 92 | Refixing of existingaluminium stripreceived from bldg as in good condition cleaning and fixed on roof conductors /down conductors above ground with new saddles(insulator to indulsotr distance should not be more than 50 CM) complete all as specified and directed. |
| 93 | M&L for Conductive Concrete Earth Grid of multiple interconnected Earth Electrodes to achieve the earth resistance value of less than< 5 Ω. The excavation is to be carried out in any type of soil including hard rock. The approx specification are as under:-(i) Earth Electrodes: Metal conductor - Copper bonded MS rod dia 17.2 mm(+/-.5mm),Length 2.25 meter with conductive concrete including provision of bore65 mm dia,2.25 meter Length of earth electrode. (ii) All earth electrodes(min two nos) should be installed to achieved the desired result .(iii)Interconnected Strip: All the multiple Earth Electrodes will be horizontally interconnected with metal conductor - Copper strip flat size : 25mm x 3 mm &conductive concrete embedding size : 60 mm².(iv) Test Link : Test links - Copper strip flat size : 40 mm x 6 mm x 200 mm shall be provided,at any one of the multiple Earth Electrodes of the grid for connection between earth grid pit and application.(v) PitCover : RCC pit cover & frame shall be provided at all Earth Electrode (with test links).Note :- (a) Bidder shall produce certificate for resistivity of conductive concrete.(b) Fault Current Testedat 40 KA Peak With 17.2mm copper bonded rod .(c ) On completion of work Engineer in charge will check the earth resistance , Contractor will re-do the earth if earth resistance value is more than 5 Ohm if value not found as per contractthe necessary action to be taken by the contactor for achieving the desire result. (d) All connecting strips would be of copper of size 20x3 mm and cost of the same is included in the rate quoted, upto test point.(e) Test certificate of earthing material for ROHS compliance, Resistivity value and fault current test for electrode from certified NABL laboratory shall be submitted. (f) Contractor will annually check the resistance value of earth grids after completion of work (g)The vendor to provide CPRI test report for current greater than 20 KA with peak at 40 KA, The report shall not be more then 5 year old from the date of tender. (h) The product should be ROHS compliance. (k)The contractor to submit unconditional guarantee for 10 years for replacement of earthing if results are not satisfactory.(l)The earthing to be carried out by OEM only.The MOU in thisrespect to be submitted by contractor while quoting the contract. |
