PROVN OF TOILET FOR DISABLED STUDENTS AT AF SCHOOL, PROVN OF SHED AT MPATE BAY, PROVN OF FLAME PROOF EXHAUST FAN AND LIGHTS AT VARIOUS POL/TECH ACCN AND PROVN OF CHEMICAL/CONVENTIONAL EARTHING AT CERTAIN LOCATION AT AF STN HASIMARA

Amount

Surface excavation not exceeding 30cm deep and averaging 15cm deep and getting out in soft/loose soil, complete all as specified and directed.

Excavation in trenches n.exc 1.5m wide and n.exc 1.5m depth for foundation, shafts, wells cess pits, manholes, pier holes etc. and n.exc 10 Sqm on plan and getting out in soft/loose soil, complete all as specified and directed.

Excavation in trenches not exceeding 1.5 metre wide and exc 1.5 metre but not exc. 3.00 mtr in depth for foundation etc. and getting out in soft/loose soil, complete all as specified and directed.

Excavating in post holes (or similar holes) each n. exc. 0.5 cum, getting out, returning, filling in and ramming earth or broken rubble mixed with earth around, in layers not exceeding 25cm, complete all as specified and directed.

Returning filling in incl spreading, leveling watering and well ramming in layers not exceeding 25cm in soft/loose soil, complete all as specified and directed.

Removing excavated materials to a distance not exceeding 50 mtr and depositing where directed at a level not exceeding 1.5m above the starting point in any type of soil, complete all as specified and directed.

M & L for PCC (1:4:8) type D-2 (using 40mm graded crushed stone aggregate) as in foundation, filling and mass concrete, complete all as specified and directed.

M & L for PCC (1:2:4) type B-2 (using 40mm graded crushed stone aggregate) as in foundation, filling and mass concrete, complete all as specified and directed.

M&L for brickwork with fly ash bricks, old size, straight or curved on plan exc 6m mean radius, built in CM (1:6), complete all as specified and directed.

M&L for brick work with sub class 'B' bricks, old size, burnt clay bricks, straight or curved on plan exc 6 mtr mean radius built in CM (1:4), complete all as specified and directed.

M&L for brick work with fly ash bricks, old size, straight or curved on plan to any radius in half brick thick walls, built in CM (1:4), complete all as specified and directed.

M&L for rendering 15mm thick on fair faces of brick work or concrete surfaces in CM (1:4) and finished even and smooth without using extra cement, complete all as specified and directed.

M & L for rendering 15mm thick (10mm + 5mm) in two coats on fair faces of brick work or concrete surfaces of wall in CM (1:4), mixed with integral water proofing compound at top layer as per manufacturer's instructions and finished the surface even and fair without using extra cement, complete all as specified and directed. (Note : WPC shall be measured and paid separately against respective item as supply only.)

M&L for 15mm thick cement plaster on other than fair faces of brick work or concrete surfaces in CM (1:4) and finished even and smooth without using extra cement, complete all as specified and directed.

Supply only liquid water proofing compound conforming to IS: 2645 - 1975 specification, complete all as directed

M&L for preparation of newly plastered surfaces of wall and applying three coats of white wash, complete all as specified and directed.

M&L for preparation of newly plastered surfaces of wall and applying two coats of cement base paint over a coat of alkali resistant primer, complete all as specified and directed.

M & L PCC (1:2:4) type B-0 (using 12.5mm graded crushed stone aggregate) cast in situ in copings, bed plates, water troughs and the like including weathering, slightly rounded or chamfered angles and throating including form work, complete all as specified and directed.

M&L for RCC (1:1.5:3) (nominal mix) type A-1, (using 20mm graded crushed stone aggregate) as in foundation, footings foundation beams etc., complete all as specified and directed.

M&L for RCC (1:1.5:3) (nominal mix) type A-1, (using 20mm graded crushed stone aggregate) as in beams, contilevers, lintels over 1.5m span etc, complete all as specified and directed.

Use and waste of form work to sides of concrete foundations, footings, bases of columns, side of foundation and plinth beams and similar works, rough finished surfaces of concrete, complete all as specified and directed.

Use and waste of form work to sides and soffits of floor beams and lintels, roof contilevers, shelves including supports etc, rough finished surfaces of concrete, complete all as specified and directed.

M&L for mild steel TMT bars 10mm dia and over (not less than Fe 500D), 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.

M&L for mild steel TMT bars 6 to 8mm dia and over (not less than Fe 500D), 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.

M&L for Mild steel TMT bars 5mm dia and over, upto and including 10mm dia (not less than Fe 500D) as in striups, spacers and binders 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.

M&L for hardcore of gauge not exceeding 63mm using broken stone or boulders, deposited, spread and levelled in layers not exceeding 15cm thick, watered and rammed to a true surface, complete all as specified and directed. (Note : Compacted thickness shall be measured for payment.)

M & L for 100mm thick PCC (1:4:8) type D-2 (using 40mm graded crushed stone aggregate) as in sub bases, floors and pavings, sub floors etc, complete all as specified and directed.

M&L for 25mm thick PCC (1:2:4) type B-0 (using 12.5mm graded crushed stone aggregate) as in sub bases, floors and pavings, leveling course etc, complete all as specified and directed.

M&L for non skid ceramic coloured tiles 7 to 8mm thick (square/rectangular) area of each tile exceeding 0.11 Sqm but not exceeding 0.18 Sqm, in floors etc. set and jointed in neat cement slurry and pointed in white or coloured cement of match the surfaces over and including 15mm thick screed bed in CM (1:6), complete all as specified and directed.

M&L for glazed ceramic coloured tiles in vertical surface 350 x 250 x 7mm/450 x 300 x 7mm thick set and jointed in neat cement slurry and pointed in white or colour cement to match over and including 10mm thick rendering in CM (1:4), complete all as specified and directed.

S&F solid PVC door frame of size 50mm x 47mm made out of 5mm plain colour PVC sheet reinforced with M.S. Square tube, as per specification & drawings, complete all as specified and directed.

S&F factory made solid panel PVC door shutter 30mm thick (style) consisting of frame made out of M.S. tubes for top & bottom rails. M.S. frame shall be covered with heat moulded plain colour PVC ‘C’ channel having a PVC sheet strip of 20mm width stuck inside with solvent cement for stiles and plain colour PVC sheets for top rail, lock rail & bottom rail on either side & as gap insert for top rail & bottom rail, panelling of plain colour PVC sheet to be fitted in the M.S. frame welded / sealed to the stiles & rails with suitable PVC sheet beading, and joined together with solvent cement, suppling & fixing in the frame at site as per specification & drawing, complete all as specified and directed.

S&F butt hinges of size 100mm, extruded aluminium alloy with galvanised mild steel hinge pin,anodised and fixed, type C-21, complete all as specified and directed.

S&F 150mm long aluminium anodised, barrel tower bolt of extruded section, complete all as specified and directed.

S&F 150mm long aluminium handle, cast type, anodised, complete all as specified and directed.

M&L steel work in tubular trusses, purlins, post including special shaped waher etc complete using ERW or induction butt welded tubes conforming to IS 1161-1979 grade St - 240 including painted with one shop coat of red oxide primer (including preparation of surfaces), complete all as speicified and directed.

M&L for 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. exc. 10 kg each brackets, conforming to Fe.290, Gde-E-165, complete all as speicified and directed.

S&F pre painted galvalume aluminium zinc coating, GI based corrugated steel sheet 0.50mm thick, of any 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.

S&F pre painted galvalume aluminium zinc coating, GI based plain steel sheet 0.50mm thick, of any colour, having tensile strength of 550 Mpa as in roof covering /cladding to wall/valley gutters/ridges etc, fixed with self tapping screws, complete all as specified and directed.

S&F for 605 x 605mm GI frame work for seamless ceiling comprising of Gl perimeter channnel 0.55mm thick with two unequal flanges of 20 and 30mm and web of of 27mm fixed to surrounding wall using nylon sleeves and screws at 450mm centre to centre/intermediate channel 0.9mm thick having two equal flanges of 15mm each and web of 45mm suspended from soffit at approx 900mm centre to centre with Gl cleat and steel expansion fasteners with and including ceiling section (not exc 1.2 m length) of 0.55mm thickness having kurled web of 50mm and flange of 26mm each with lips of 10.5mm fixed to the intermediate channel with connecting clips across the intermediate channel at 457mm centre to centre, hanger with 4-6mm dia GI (length as required) adjusting level fixed to roof slabs/truss by means of ceiling cleats made out of GI flat 40 x 3mm size 60mm long and expension hold fast evers 12.5mm dia 40mm long including providing 4mm thick fibre cement designer board, fixed or laid/inserted to GI framework with screws, 60cm x 60cm in size, complete all as specified and directed.

S&F 20mm bore galvanised steel water tubing and connection, medium grade, with all fittings, fixed to wall or ceiling, complete all as specified and directed.

S&F 15mm bore galvanised steel water tubing and connection, medium grade, with all fittings, fixed concealed to walls or in ceiling and making good surfaces with CM (1:3), exc. 10cm girth, complete all as specified and directed.

S&F 15mm bore, fancy type, chromium plated, stop valves (angle valve), cast copper alloy screwed down high pressure with crutch or butterfly handle screwed one ends for iron pipe or union, complete all as specified and directed.

S&F vitreous china urinal, half stall type, white (excluding flushing cistern, flush pipe and waste pipe), complete all as specified and directed.

S&F urinal spreader of PTMT any colour for fixing with 15mm bore pipe (Minimum weight 60gms), complete all as specified and directed.

S&F 15mm bore concussive push button taps of cast copper alloy, screwed for iron pipe and fixed, complete all as specified and directed.

S&F 15mm bore, fancy type, chromium plated, bib tap, cast copper alloy with crutch or butterfly handle, screwed down, screwed for iron pipe or for brass ferrule and fixed, complete all as specified and directed.

S&F vitreous china squatting pan,"Orissa pattern" white, size 580 x 440mm with integral foot rest, 'P' or 'S' trap, including connection to trap, and to flushing pipe, CI anti -syphonage pipe, complete all as specified and directed.

S & F vitreous china wash down water closet pan (pedestal pattern), white (EWC) including plastic seat of same colour of WC and cover and mild steel chromium plated hinginh device, complete all as specified and directed.

S&F vitreous china wash hand basin white flat back of size 550x 400mm including PVC waste pipe 32mm dia, waste coupling including cutting for and pinning in ends of brackets etc including dismantling the existing basin, complete all as specified and directed.

S & F 15mm bore CP self-closing taps, cast copper alloy, chromium plated, screwed for iron pipe and fixed, complete all as specified and directed

S&F 10 ltrs capacity low level valve less PVC syphonic action type flushing cistern white with inlet ball valve, float and handle including 32mm dia flush pipe of polytheylene of low or high density and connection to pipes, complete all as specified and directed.

S&F PVC connection 15mm size with PTMT nuts of length 600mm, complete all as specified and directed.

S&F health faucet (ABS Body) mild steel chromium plated suitable for 15mm bore pipe, with 1.25 metre long flexible tube and ABS wall hook including makeing connection and fixed in position, complete all as specified and directed.

S&F brass CP tubular towel rail, 20mm dia, D type, 60cm long between flanges, compelete all as specified and directed.

S & F 110mm dia PVC rain water pipes, single sockets, in any length with sealant rubber ring joints, fixed to walls including necessary MS flat iron clamps of size (40 x 4mm), complete all as specified and directed.

S & F 110mm dia, PVC (SWR) pipes single socketed, in any length with rubber ring joints, laid in trenches or in floors, complete all as specified and directed.

S & F 110mm dia, PVC (SWR) bends any radius, complete all as specified and directed.

S & F 100mm bore slotted vent cowl, complete all as specified and directed.

M&L 75mm bore PVC (SWR) floor trap, plain with grating including jointing with solvent cement, complete all as specified and directed.

S&F 125/110mm size PVC (SWR) gully trap, setting and jointing with solvent cement, complete all as specified and directed.

M&L for 75mm thick PCC (1:3:6) type B2 (using 40mm graded crushed stone aggregate) as in plinth protection etc, finished the surfaces even and smooth without using extra cement, complete as specified and directed.

S&F steel windows, factory made, confirming to IS, with side hung shutters including projecting type hinges with steel handle and steel peg stay complete with glazing bars, dovetailed or welded, complete all as specified and directed.

S&F steel windows, factory made, confirming to IS, with side hung shutters including box type hinges with steel handle and steel peg stay complete without glazing bars, dovetailed or welded, complete all as specified and directed.

S&F steel ventilator, factory made, confirming to IS, with top hung shutter including hinges, steel peg stay, complete all as specified and directed.

M&L for mild steel framed work such as grill, gratings etc with ends of bars shouldered and/or riveted, or forged into spikes, framed guard bars, barrel iron doors, ladders framed balusters, walks railings, frame work of water tanks and similar work conforming to Gde E-165 (Fe-290) including two coats of synthetic enamel paint over one coat of red oxide, complete all as specified and directed.

S&F 3.00mm thick sheet glass, ordinary quality and glazing with oil putty in square n exc 0.5 sqm in each pane, complete all as specified and directed.

S&F 3.00mm thick figured glass, pin head type and glazing with oil putty in square n exc 0.5 sqm in each pane, complete all as specified and directed.

M&L for preparation of new or previously untreated wooden surfaces of any description over 10cm width or girth not otherwise described and applying two coats of synthetic enamel paint (1st grade quality) over a coat of pink primer, complete all as specified and directed.

S&F galvanised mild steel wire cloth, 0.56mm nominal dia of wire and average width of aperture 1.00mm and fixed with tinned tacks or galvanised wire staples, complete all as specified and directed.

Cutting into existing manholes for connecting new drains, making good to pipe and rendering cutting out existing benching for and forming branch channel (1/2 round or 3/4 round section) in PCC (1:2:4) type B1, smooth finished and reforming benching as required for 150mm bore pipe, complete all as specified and directed.

M&L for PCC (1:3:6) type C-2, (using 40mm graded crushed stone aggregate) as in concrete bed to drain pipes laid in trenches including packing under and haunching against the sides of pipes aftaer they are laid and tested in for 150mm bore pipe, complete all as specified and as directed.

M&L for 150mm bore reinforced concrete pipes, class NP2, laid and jointed complete with collars, complete all as specified and directed.

M&L for chequered cement concrete tiles 30cm x 30cm x 25mm thick, set, jointed and pointed in neat cement slurry with pigments in floors over and including 15mm thick screed bed or bedding layer of CM (1:6), complete all as specified and directed.

M&L for preparation of new steel or iron surfaces of any description over 10cm width or girth not otherwise described and applying two coats of synthetic enamel paint (1st grade quality) over a coat of red oxide primer, complete all as specified and directed.

S&F mild steel rolled sections of grade Fe-290, E-265 as in main and cross beams, hip and jack rafters, purlins where connected to common rafters and running rails and guides for sliding doors, fixed with angle cleats or other connecting plates including distance pieces, cleats etc, complete all as specified and directed.

M & L for point wiring complete with PVC insulated unsheathed, 1100 volts grade cable 1.5 Sqmm (nominal area) FRLSH type multi stranded copper conductor, single core drawn in and including concealed, rigid PVC conduit (ISI marked) not less than 20mm dia, medium grade, including all conduit accessories with and including concealed modular box of suitable size for mounting modular switch, sockets, fan regulator etc including 1.5 Sqmm FRLSH type PVC insulated unsheathed cable multi-stranded copper conductor as continuous earth wire and connected to earth dolly as required at site & including chases cutting & making good disturbed surface & applying finishes to match existing surface etc. for one light/fan point controlled by one, one way switch single pole, complete all as specified and directed. Note: - (i) Rate quoted shall deemed to be included for cost of modular box (as per nuber of module of outer cover) and concealed in wall including cutting and sinking of boxes and making good to the walls. (ii) Provision of cover plates/sorroundings of any module/blank plates as per site requirement shall deemed to be included in the quoted unit rate.

All as per item No 78.00 here-in before but for one 3 pin 5 Amps socket on same board controlled by other switch, complete all as specified and directed.

S&F modular switch, single pole, one way, 5/6 Amps 240 volts, one module, complete all as specified and directed.

S&F ceiling rose of size 65 x 50mm surface bakelite 240 Volts, three terminal, complete all as specified and directed.

S&F modular socket outlet, multipurpose, having provision for 3 pin, 5/6 Amp and 2 pin combined, 2 module, complete all as specified and directed.

S&F LED light fitting mirror type with high output diffuser 2 feet, 10 watt 220 V, AC, with driver, LED tube light of 10watt connecting up with three core flexible copper conductor cable of suitable size from ceiling rose, completes all as specified and directed.

S&F sheet metal enclosure for double door MCB DB, Single Pole & Neutral (SPN), 4 way, 415 volts, IP 43 & IK 09 with metal door fixed on wall with din rail, neutral and earth bar, fixed in proper position, complete all as specified and directed.

S&F MCB SP 6 to 32 Amps, 240V, 10 KA, 'C' curve, including connecting and testing, completes all as specified and directed.

S&F MCB SPN 6 to 32 Amps, 240V, 10 KA, 'C' curve, including connecting and testing, complete all as specified and directed.

S&F exhaust fan, steel body AC, single phase, 230V of size 300mm sweep with blades, frame and louvers including cutting wall for fixing the exahaust fan and making good the opening in CM (1:3) or PCC (1:2:4) type B1, as required at site, completes all as specified and directed.

Supply, laying, jointing 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 16 Sqmm 4 core, complete all as specified and directed.

Supply & laying double walled corrugated (DWC) HDPE duct pipe of 38/40mm bore (inner dia) conforming to IS, approved colour, complete with fittings for cable protection, complete all as specified and directed.

M&L for earthing complete with galvanized steel earth plate electrode 60cm x 60cm x 6.0mm thick buried directly in ground vertically to a depth not less than 2.25 meter below ground level with top edge of earth plate at a depth not less than 1.5 meter below ground level, earth plate surrounded by 15cm thick packed layer of charcoal dust and common salt, connected to galvanized earth lead wire 4mm thick dia by means of bolts, nuts and washers of galvanized iron or steel and thimbles and other end of the earth strip connected to earthing test point/equipment and protected by galvanized iron pipe light grade 20mm bore, up to earthing test point/equipment fixed with required number of mild steel clamp made out of 25mm x 3mm flat iron and perforated water pipe 20mm dia. GI medium grade of length 2.25 meter and top with socket & plug and bottom connected to earth plate by slit and two bolts/nuts/washers, PCC chamber in PCC (1:2:4) type B-1 and 40mm thick pre-cast RCC (1:2:4) type B-0 cover reinforcement with 40mm x 40mm x 6mm MS angle iron frame, excavation & earth work complete all as shown in electrical plate No. 3 of MES Schedule Part-I of SSR-2009 connected to main switch board and testing, complete all as specified and directed. Note: - Proper earthing pit should be provided with pit cover.

M & L for flame proof point wiring surface/concealed type with 1.5 Sqmm (nominal cross sectional area) with PVC insulated unsheathed single core stranded copper conductor (ZHFR/HFFR) cable of working voltage 1100 volts grade conforming to IS-694 drawn in and including steel surface conduit with all fittings & accessories such as FLP flexible conduit, FLP junction box, brass glands/connector, bends etc. with 1.60 mm thick pressed steel or mild steel sheet sunk box, including 1.5 Sqmm (nominal cross sectional area) PVC insulated unsheathed single core stranded copper conductor (ZHFR/HFFR) cable as earth continuity conductor connected to main switch/ 'DB's or common earth dolly for one fan/light point controlled by one 16 amps single pole FLP switch for the point wiring, complete all as specified and directed.

All as per item No. 91.00 here-in-before but for one 3 pin socket outlet 15 Amps, independent with (ZHFR/HFFR) type 4 Sqmm PVC insulated single core stranded copper conductor cables along with 4 Sqmm (ZHFR/HFFR) type 4 Sqmm PVC insulated single core stranded copper conductor cables as earth continuity conductor, complete all as specified and directed.

S&F FLP/WP rotary type switch with termination box in LM6, 16A, single pole, 250V, direct entry, complete all as specified and directed.

M & L flame proof switch socket & plug combined in LM6 cable termination box in LM6, 16A, 250V, 2 Pin + earth (3 Pin) having full proof interlocking i.e plug cant be removed in ON condition, complete all as specified and directed.

S&F LED light fitting 2 x 20 Watt flame proof, CMRI certified recommended for gas/ vapor group of IIA & IIIB, Zone 1 & 2 and IP 65 protection with die cast aluminum hosing with heat resistant toughened glass with LED tube light fixtures driver, holders, brass gland/connector etc. complete with all accessories prewired and including connecting up with three core flexible copper conductor cable and flexible steel conduit of suitable size upto nearest ceiling rose, complete all as specified and directed.

M & L for submain wiring with two single core PVC insulated unsheathed, multistranded flexible copper conductor 1100Volts grade, (ZHFR/HFFR) type, cables 6 Sqmm including 6 Sqmm (ZHFR/HFFR) type, PVC insulated unsheathed multi stranded flexible copper conductor cable as continuous earth wire, drawn in and including stove enamelled steel conduit of size 20mm bore, heavy duty and connecting to common earth terminals, complete all as specified and directed. Note :- Three runs of cables and one run of steel conduit and its accessories shall be measured as one length.

S&F flameproof sheet metal enclosure 4 way TPN for double door, IP 65/66 protection, MCB DBs, phosphatised, powder coated, Triple Pole & Neutral (TPN) 80 Amp MCB 'C' curve -01 No. as incomer and 40 Amp MCB DP 'C' curve - 08 Nos. & MCB SP 'C' curve 06 Amp - 04 Nos. as outgoing connection, 415 volts, IP 43 & IK 09 with metal door fixed on wall with din rail, fixed in proper position with complete internal busbar and wiring upto terminals, complete all as specified and directed. Note : Cost of MCBs shall deemed to be included in the unit quoted rate.

S&F flame proof sheet metal enclosure 8 way SPN for double door, IP 65/66 protection, MCB DB, phosphatised, powder coated, size not less than 330 x 350 x 190mm, MCB DP 'C' curve 63 Amp 01 No. as incomer and MCB (SP) 'C' curve 06 to 16 Amp - 06 Nos. as outgoing connection, 415 volts, IP 43 & IK 09 with metal door, fixed in proper position with complete internal busbar and wiring upto terminals, complete all as specified and directed. Note : Cost of MCBs shall deemed to be included in the unit quoted rate.

M & L for flame proof/weather proof junction box 4 way, 100mm dia with proper cover, complete all as specified and directed.

M & L for heavy duty flame proof/weather proof flexible metalic hose SS conduit of dia 20mm and 300mm long alongwith proper brass glands at both end, complete all as specified and directed.

S & F flame proof exhaust fan 12", 1440 RPM, IP 66, protection, made out of dynamically balanced hub of aluminum alloy LM-6 having air discharge capacity of 1250 CFM coupled with flameproof motor of 0.25 HP single phase with and including 12" louvers, including making hole in existing walls and making good the disturbed surfaces to match the existing surfaces, complete all as specified and as directed.

M&L for earthing of equipment complete with copper earth plate electrode 60 × 60cm. × 3.15 mm thick , buried directly in ground (earth pit not less than 2.25 metres deep below ground level) with top edge of the plate not less'than 1.5 metres below normal ground level, connected to existing earth lead strip by means of bolts, nuts, check nuts and washers of brass or HS steel in any type of soil, connected to earthing test point and and necessary excavation and earth work, PCC (1:2:6) type C-1 as earth pit with pre-cast RCC (1:2:4) type B-1 cover slab size 400 x 400 x 50mm reinforced with 8mm dia TMT bar, 100mm c/c both ways including one handle made of 12mm dia including providing charcoal or coke and common salt in alternate layer of 15cm compacted thickness all around the earth electrode with funnel and 20mm bore galvanized iron watering pipe (light grade) wire mesh, copper lugs, complete in all respect,including Copper earth strip 20 x 3mm, protected by 40mm bore (medium grade) galvanized iron pipe up to earthing test point including disposal of soil to a distance not exc 50 mtr and necessary testing on completion, complete all as specified and directed. Note:- (i) Proper earthing pit should be provided with pit cover. (ii) Copper earth strip beyond 7.5 mtr shall be measured and paid separately.

M &L for chemical earthing complete with copper plate earth electrode 90cm x 60cm x 5mm thick buried directly in ground (earth pit not less than 4.00 mtr below ground level with top edge of plate not less than 3.25 mtr below ground level) brazed with copper strip 50 x 6mm size 7.5 mtr long and connected to copper strip of any size by means of copper bolts, nuts, check nuts and washers complete all as specified and directed. Note - The rated quoted is deemed to the inclusive of the followings: (a) The excavation and earth work (filling in, ramming in layers, watering etc as directed) in any type of soil for earth pit (pit size 1.20 x 1.20 x 4.0mtr). (b) Perforated GI tubing (ISI marked) light grade 80mm bore 7.0 mtr long for strip protection and watering. (c) Common salt charcoal dust in alternative layers of 15cm, up to 90cm above the top of copper plate and one layers of 15cm Magnesium sulphate (MgSo4) all as directed (Salt - 500Kg. Charcoal dust - 1000 Kg & MgSo4 - 150 Kg). (d) Earth chamber of internal size 600mm x 600mm x 600mm, built in PCC (1:3:6) type C2 bed 15cm thick at bottom, brick work in CM (1:6) upto 45cm over PCC bed and PCC (1:3:6) type C1 coping 15cm above, embedded with MS angle 50mm x 50mm x 3mm frame work duly painted with anti corrosive bituminous paint, with and including RCC slab 50mm thick in cement concrete (1:2:4) type B1, reinforced with XPM (weight not less than 4 Kg per Sqm) having lifting arrangement duly painted in green and making earth pit as directed. (e) On testing, after completion, if the earth resistance <0.5ohms is not obtained, earthing shall be regenerated at no extra cost till the desired earth resistance is obtained.

M&L for earthing complete with GI earth plate electrode 60 × 60cm × 6mm thick , buried directly in ground (earth pit not less than 2.25 metres deep below ground level) with top edge of the plate not less'than 1.5 metres below normal ground level, connected to existing earth lead strip by means of bolts, nuts, check nuts and washers of brass or HS steel all as shown in electrical plate No. 3 connected to earthing test point and and necessary excavation and earth work PCC (1:3:6) type C-1 as earth pit with pre-cast RCC (1:2:4) type B-1 cover slab size 400 x 400 x 50mm reinforced with 8mm dia TMT bar, 100mm c/c both ways including one handle made of 12mm dia including providing charcoal or coke and common salt in alternate layer of 15cm compacted thickness all around the earth electrode with funnel and 20mm bore galvanized iron watering pipe (light grade) wire mesh, copper lugs, complete in all respect, including galvanised iron earth strip 25 x 4mm, protected by 40mm bore (medium grade) galvanized iron pipe up to earthing test point as directed, incl disposal of spoil to a distance not exc. 50 mtr and necessary testing on completion, complete all as specified and as directed. Note : (i) Proper earthing pit should be provided with pit cover. (ii) GI earth strip beyond 7.5 mtr shall be measured and paid seperately.

S & F air termination, single pointed aluminium with rod 12mm dia and 300mm long with necessary supporting insulators fixed on, aluminium strip, with nut, bolt and washers, complete all as specified and directed

S & F aluminium strip of size 25 x 3.15mm with saddles and fixing screws etc. for roof conductors with rubber & bitumen washer & fixed to porcelain insulator on wall for down conductor, complete all as specified and directed

S & F GI strip of size 32 x 6mm burried in ground or on wall drawn in conduit/pipe, complete all as specified and directed

S & F copper strip of size 32 x 6mm burried in ground or on wall drawn in conduit/pipe, complete all as specified and directed

S & F test point termination blok of size 75mm × 75mm × 25mm made of Gum Metal or phospherous bronze drilled and screwed including 3 Nos, 8mm dia 25mm long hexagonal headed screw and box of size 90mm × 90mm × 90mm (made out of 1.6mm thick plain brass sheet) and screwed to wall for protection of test point, complete all as specified and directed. (Note :- Copper strip & test point should be bonded by brazing.)

M&L for pre-cast cement concrete (1:3:6) type C1 (using 20mm graded crushed stone aggregrate) as in block masonry with solid blocks, exc. 10cm in width and setting in CM (1:4), complete all as specified and directed.

S & F for 40mm long porcelain insulator suitable for fixing of aluminim/copper strip on roof/wall etc. with necessary drilling and providing two Nos screw for each insulator, complete all as specified and directed.

S & F 32mm bore galvanized steel tubes, light grade, ISI marked with all fitting and fixed complete to roof slab / walls / pavement/ ceilings or laid on floors, complete all as specified and directed.

M&L for cross arms, 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 one primer coat, one under coat and one finishing coat of synthetic enamel paint (1st grade quality), complete all as specified and directed.

M/S SANMILAN NANDI (BID ID -3290616)

M/S. VINITA CONSTRUCTION (BID ID -3290259)

M/S MANODEEP CONSTRUCTION (BID ID -3291082)

M/S RATHIN ENTERPRISES (BID ID -3291422)

M/S SARKAR ELECTRIC (BID ID -3291131)

M/S BISHAL ENTERPRISES (BID ID -3291164)

BHARAT ELECTRIC (BID ID -3291428)