REPAIR MAINT OF MISC EM ITEMS AND CONNECTED WORKS AT AKHNOOR MIL STN UNDER GE SOUTH AKHNOOR

Disconnecting the electric connection from the alternator and LT panel. Separating the Gen Set from pannel and base plate by opening the cover nuts and bolts, clean barrels, servicing of Gen Set, changing of oil filters, changing of belt of Gen Set of capacity 40 KVA, re-fitting the accssories, re-install the Gen Set and making all connections all as specified and as directed. NOTE : (The rates are inclusive of 2 Nos fuel filters and one number Oil fiter and one number airfilter. Other spare parts required for DG set shall be measured and paid separately).

Dismantling the alternator of DG set capacity 40 KVA, and transport to workshop for repair including lifting, loading/unloading, cutting and removing the burnt out stator winding . Rewinding the complete stator winding with existing guage of supper enamelled copper wire and other winding materials including insulator, varnishing, preheating at heat chammber for 40 KVA complete all as specified and directed . NOTE : (spare parts requried for repair to be measured and paid separatelty under relevant items of this schedule)

Supply and fix in replacement of straight through Joints (Epoxy Type) including Jointing Kit complete for making Joints suitable for LT UG Aluminium Conductor cable for following sizes including necessary excaation of earth work complete all as specified and directed . (b) 3.5 core x 35 Sqmm to 70 Sqmm

M&L for rewinding of submersible pump 20 HP set by taking out burnt out winding from the stator with super enamelled copper wire of same gauge and size as per existing , varnis

hing, heat drying and testing complete all as specified and as directed .

Supply only carbon brush suitable for alternator 40 KVA,complete all as specified and directed .

Supply only carbon brush holder suitable for alternator 40 KVA,complete all as specified and directed .

Supply only ball bearing suitable for alternator 40 KVA,complete all as specified and directed .

Supply only eletronic rectifier/AVR suitable for alternator 40 KVA,complete all as specified and directed .

ric plate No-3 of SSR Part-I (2009), complete with necessary earth work in any type of soil, removal to a distance not exceeding 50mtr, including testing on completion, including taking down of old unserviceable earthing material ,complete all as specified and directed. Note: Earth pit chamber and RCC pit cover shall be painted with two coats of red synthetic enamel paint over one coat of primer including preparing of surfaces.

(a) Armature

(b) Solenoid switch

(c) Pinion steel heavy duty

(d) Carbon bush suitable for 12 volts

(e) Field coil copper

Supply and fix in replacement of water temperature gauge suitable for 40 KVA DG set,complete all as specified and directed .

Supply and fix in replacement of oil pressure gauge suitable for 40 KVA DG set,complete all as specified and directed .

M&L for cleaning of radiator of DG set of capacity 40 KVA and removing the radiators from engine for repair and washing with caustic soda and cleaning with blower including brazing of damaged water tubes/fins complete all as specified and directed .

Supply and fix in replacement of air cleaner of capacity 40 KVA DG Set,complete all as specified and directed .

Overhauling and caliberation of fuel injector pump (FIP) including replacement of following parts of DG Set capacity 40 KVA, alongwith taking down the old unserviceable parts :- (i) Pluger (ii) Barrel (iii) Screen (iv) Oil Seal & bushes. (v) Nozzles

Earthing complete with galvanised iron earth plate electrode 600x600x6mm buried directly in ground (earth pit not less than 2.25mtr deep below ground level) with top edge of earth plate not less than 1.5mtr below normal ground level, connected with galvanised iron strip, size 32x6mm as earth lead, by means of bolts, nuts, check nuts and washers of galvanized iron or steel complete with 40mm dia GI light grade protection pipe, 20mm dia GI medium grade watering pipe with funnel including charcoal, dust, salt, PCC M-15, type B-1 in pit with precast RCC M-15(1:2:4), type B-1 (using 20mm graded crushed stone aggregates) in cover reinforced with XPM not less than 4.0 Kg per Sqm, test point etc. all as shown in electric plate No-3 of SSR Part-I (2009), complete with necessary earth work in any type of soil, removal to a distance not exceeding 50mtr, including testing on completion, including taking down of old unserviceable earthing material ,complete all as specified and directed. Note: Earth pit chamber and RCC pit cover shall be painted with two coats of red synthetic enamel paint over one coat of primer including preparing of surfaces.

Overhauling and servicing of self stator of DG Set 40 KVA by replacing the following spare parts, alongwith taking down the old unserviceable parts :-

Supply and fix in replacement of water hoses for DG set of capacity 40 KVA, complete all as specified and directed .

Supply and fix in replacement of battery terminals, brass heavy duty (positive and negative), complete all as specified and directed .

Supply and fix in replacement of battery leads copper cable suitable for 24/12 volts 150 AH battery 1.5 mtrs long with terminals, complete all as specified and directed .

Supply and fix in replacing of coolant for radiator for servicing DG set of 40 KVA, complete all as specified and directed .

Supply and fix in replacement of canopy for 40 KVA DG Set ,complete all as specified and directed .

Supply and fix in replacing of engine oil for servicing DG set of 40 KVA,complete all as specified and directed .

Supply and fix in replacement of change over switch (Rotary type) confirming IS- 13947 Part-I & II 415V, 4 pole of rating 100 Amp ,complete all as specified and directed .

Supply and fix in replacement of MCCB 100 Amp 4 pole 35 KVA ,complete all as specified and directed .

M&L for Painting/scrapping of DG set capcity 40 KVA with two coat of grey enammelled paint over a coat of red oxide, alongwith LT panel ,complete all as specified and directed .

M&L for dismantling the submersible pump set and motor assembly of capacity 20 HP installed in bore well by tking out GI pipe line of any dia and length complete using skilled and experienced labout and transporting the same to workshop for repair and replacement of thrust bearings, replacement of worn impellers -01 set , replacement of worn of bushings and shifting repaired pump set with repaired motor back to site after repair and re- assembling the same in the bore well after testing,complete all as specified and directed .

Supply and fix in replacement of straight through Joints (Epoxy Type) including Jointing Kit complete for making Joints suitable for LT UG Aluminium Conductor cable for following sizes including necessary excaation of earth work complete all as specified and directed . (a) 4 core x 10 Sqmm to 25 sqmm

Supply and fix in replacement of star delta starter electronic type model ML-2 of L&T or equivalent suitable for 20 HP motor,complete all as specified and directed .

Supply and fix in replacement of submersible cable 1100 Volts copper conductor stranded cable 6 sqmm 3 core flat ISI marked ,complete all as specified and directed .

Supply only slip ring assembly complete bronze suitable for alternator 40 KVA,complete all as specified and directed .

Supply and fix in replacement of battery of rating 12 volts 150 AH having 6 cell, each cell 2Volt DC by replacing unserviceable cells, lead terminals alongwith replacement of distrilled water, acid including installation ,complete all as specified and directed .

Supply and fix in replacement of hot water tank of capacity 1000 Ltrs without heat exchanger (Non pressurized) type, inner tank made of SS 304L with inlet, outlet & overflow arrangement & valves, duly insulated with glass wool/rockwool not less than 100mm thick layer & outer metallic body and including sacrificial anode, temperature guage & make-up tank etc.,complete all as specified and directed .

Supply and fix in replacement of MS stand suitable for 1000 LPD solar water heater including PCC work ,complete all as specified and directed .

Supply and fix in replacement of solar energy collectors (Al) of Size 2030*1030*100mm (4F) ISI marked ,complete all as specified and directed .

Supply and fix in replacement of solar master collectors (Al) of Size 2030*1030*100mm (4F 2N) ISI marked ,complete all as specified and directed .

Supply and fix in replacement of hose pipe to connect hot wtaer tank of flat collector,complete all as specified and directed .

Supply & fix in replacement of heating element ISI marked of size 3 KW, 230 volts required for solar water heater ,complete all as specified and directed .

Supply & lay in replacement of hot water pipe duly inslulated with glass wool and aluminium cladding 20 mm bore ,complete all as specified and directed .

Supply & lay in replacement of hot water pipe duly inslulated with glass wool and aluminium cladding 15 mm bore,complete all as specified and directed .

S&F in replacement sub main two single core PVC copper conductor unsheathed wire multi stranded 4 sqmm along with earth wire 4.0 sqmm copper conductor single core wire connected by common earth in existing surface/recessed PVC/steel conduit complete all as specified. (Note :- two lengths of 4.0 sqmm cable and one length of 4.0 sqmm earth cable will be measured as one running length)

Supply and fix in replacement of battery charger 36 volts, DC stationery automatic floot cum boostiner trickle battery bank having 16 nos batteries,each cell having voltage 2x100AH for 33kV remote control breaker panel/11kV VCB Panel including free maintenance, battery complete maint free batteries of 2 volt 100 AH 16 nos with battery stand and other accessories,complete all as specified and directed .

Supply and fix in replacement of rubber mating size of 1 mtrx 2mtrx19mm, complete all as specified and directed .

Excavation in trenches, not exceeding 1.50 mtr wide and not exceeding 1.50mtr in depth; not exceeding 10 Sqm on plan and getting out, in any type of soil, for laying electric cables or foundation of poles/ stays etc,complete all as specified and directed .

Excavation in trenches, not exceeding 1.50 mtr wide and exceeding 1.50mtr but not exceeding 3.0mtrs in depth, not exceeding 10 Sqm on plan and getting out, in any type of soil, for laying electric cables or foundation of poles/ stays etc,complete all as specified and directed .

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exceeding 25Cm,complete all as specified and directed .

Sub class ‘B’ bricks, modular size, brick covering laid dry, flat, transversally along the length of cable on sand cushioning for mechanical protection of cable, with width equal to the length of the brick,complete all as specified and directed .

M&L for plain cement concrete M-7.50 (1:4:8), type D-2 (using 40mm graded crushed stone aggregate), as in or as mass concrete in foundation of poles etc, complete all as specified and as directed.

M&L for plain cement concrete M-10 (1:3:6), type C-2 (using 40mm graded crushed stone aggregate), as in or as mass concrete in foundation of stays etc, complete all as specified and as directed .

M&L for plain cement concrete M-15 (1:2:4), type B-1 (using 20mm graded crushed stone aggregate), as in coping of poles including necessary form work, finish even and smooth without using extra cement, complete all as specified and as directed .

Replacement of old cracked/ damaged, concrete poles with new pre-stressed concrete pole, 9.0 metres long, cross section 102mmx172mm at top and 102mmx279mm at bottom, class 10, including painting strips in black and white colour, 300mm thick, upto 1.50mtr height, from top of PCC coping with synthetic enamel paint after preparing the surface, complete all as specified and as directed . Note: Excavation, earth work and concrete in foundation shall be measured and paid separately under respective items of BOQ.

Replacement of old damaged, steel tubular poles with new steel tubular swaged poles complete with mild steel base plate, finial taper plug, bolts, nuts and screws as specified, type-410, SP-31 (9.00 meters long), including painting with two coats of aluminium paint over one coat of zinc chrome primer after preparing the exposed surface and two coats of bitumiunous paint on embedded surfaces, complete all as specified and as directed . Note: Excavation, earth work and concrete in foundation shall be measured and paid separately under respective items of BOQ.

Replacement of old unserviceable/ damaged over head conductor with new over head, aluminium conductor, steel reinforced, weasel, from any type/ height of poles including proper binding with existing insulators, complete all as specified and as directed . Note: Weight of ACSR or all aluminium conductors drawn for overhead lines is to be determined by measuring taut horizontal distance between centers of two adjacent poles and compounding the weight of conductors of that size and length and 3% extra added for sag, jointing, jumpers, etc.

Re-stretching only for aluminium conductor steel reinforced including earth wire, of any size and type, maintaining required sag, fixed poles of any height and type with insulators, fixed with aluminium binding wire including all required labours, tools and plants, including making all necessary connection, complete all as specified and as directed .

Taking down existing unserviceable/ rusted structural steel in cross arms and replacement with new mild steel in 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 coat of red oxide primer, one under coat and one finishing coat of aluminium paint, complete all as specified and as directed .

S&F in replacement of old unserviceable/ damaged pin type insulator with new pin type, porcelain, vitreous, white, brown or green insulator including one galvanised mild steel spindle, two galvanised iron washers and one galvanised iron nut, 100mm height, 65mm dia for 1100 volts grade, complete all as specified and as directed .

S&F in replacement of old unserviceable/ damaged shackle type insulator with new shackle Type, Porcelain, vitreous, white, brown or green insulator size 100mm height, 115mm dia including galvanised mild steel straps 31x5mm and insulator bolts of bolts 14mm dia, washers, nuts, for working pressure 1100 volts grade, complete all as specified and as directed .

Sand cushioning to protection of underground cables, laid 8 Cm before laying and 15 Cm after laying of cable, and punned to form an overall layer of 18 Cm thick, complete all as specified and directed by Engineer-In-Charge. Note: Punned thickness shall be measured.

S&F in replacement of old unserviceable rubber mat with new synthetic rubber insulating mat for preventing HT shock, thickness not less than 25mm, size 2.00x1.00 mtrs, complete all as specified and as directed .

Supply and fixing in replacement of 1100 Volts grade, heavy duty, multi-stranded cable, PVC insulated aluminium conductor, multi-stranded, cross sectional area 10.0 Sqmm, 2-core, served with inner sheathing of PVC tape and overall PVC sheathed in service connections , one twin core cable flat or circular, complete all as specified and as directed .

Supply and fixing in replacement of 1100 Volts grade, heavy duty, multi-stranded cable, PVC insulated aluminium conductor, multi-stranded, cross sectional area 16.0 Sqmm, 2-core, served with inner sheathing of PVC tape and overall PVC sheathed in service connections, one twin core cable flat or circular, complete all as specified and as directed .

Supply and fixing in replacement of danger notice plate of 1.6mm thick mild steel sheet, vitreous enamelled white, with letters, figures and conventional skull and bones in signal red colour and fixed with mild steel clamps, bolts and nuts of approved size, for LT, 20x15cm size, fixing in repairs, complete all as specified and as directed.

Supply and fixing in replacement of old unserviceable/ damaged PVC separator/ spacer with new PVC separator/ spacer, polypropylene composite moulded or bolted type, including all nuts, bolts and washers, suitable for two wires on LT over head line to maintain the uniform space between the ACSR conductors, complete all as specified and as directed .

Supply and fixing in replacement of old unserviceable/ damaged PVC separator/ spacer with new PVC separator/ spacer, polypropylene composite moulded or bolted type, including all nuts, bolts and washers, suitable for three wires on LT over head line to maintain the uniform space between the ACSR conductors, complete all as specified and as directed .

Supply and fixing in replacement of old unserviceable/ damaged PVC separator/ spacer with new PVC separator/ spacer, polypropylene composite moulded or bolted type, including all nuts, bolts and washers, suitable for four wires on LT over head line to maintain the uniform space between the ACSR conductors, complete all as specified and as directed .

Supply and fixing in replacement of old unserviceable/ damaged LT XLPE cable with new XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, heavy duty electric cable with aluminium conductor, 1100 Volts grade, cross-sectional area 120.0 Sqmm, 3.50-core, laid in trenches or passing through pipes, including suitable lugs and accessories for making connections at both ends, complete all as specified and as directed.

Supply and fixing in replacement of old unserviceable/ damaged LT XLPE cable with new XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, heavy duty electric cable with aluminium conductor, 1100 Volts grade, cross-sectional area 95.0 Sqmm, 3.50-core, laid in trenches or passing through pipes, including suitable lugs and accessories for making connections at both ends, complete all as specified and as directed.

Supply and fixing in replacement of old unserviceable/ damaged LT XLPE cable with new XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, heavy duty electric cable with aluminium conductor, 1100 Volts grade, cross-sectional area 70.0 Sqmm, 3.50-core, laid in trenches or passing through pipes, including suitable lugs and accessories for making connections at both ends, complete all as specified and as directed.

Supply and fixing in replacement of old unserviceable/ damaged LT XLPE cable with new XLPE insulated, screened, PVC bedded, galvanised steel strip or wir

e armoured, heavy duty electric cable with aluminium conductor, 1100 Volts grade, cross-sectional area 50.0 Sqmm, 3.50-core, laid in trenches or passing through pipes, including suitable lugs and accessories for making connections at both ends, complete all as specified and as directed.

Supply and fixing in replacement of old unserviceable/ damaged LT XLPE cable with new XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, heavy duty electric cable with aluminium conductor, 1100 Volts grade, cross-sectional area 35.0 Sqmm, 3.50-core, laid in trenches or passing through pipes, including suitable lugs and accessories for making connections at both ends, complete all as specified and as directed.

Supply and fixing in replacement of old unserviceable/ damaged LT XLPE cable with new XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, heavy duty electric cable with aluminium conductor, 1100 Volts grade, cross-sectional area 25.0 Sqmm, 4.0-core, laid in trenches or passing through pipes, including suitable lugs and accessories for making connections at both ends, complete all as specified and as directed.

Supply and fixing in replacement of old unserviceable/ damaged LT XLPE cable with new XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, heavy duty electric cable with aluminium conductor, 1100 Volts grade, cross-sectional area 16.0 Sqmm, 4.0-core, laid in trenches or passing through pipes, including suitable lugs and accessories for making connections at both ends, complete all as specified and as directed.

M&L for replacement of old unserviceable/ damaged stay assembly with new stay assembly, galvanised iron, complete with accessories as shown in electrical plate No-1, diameter of stay rod 20mm dia, including galvanised iron stay plate 300x300x6mm, galvanised iron thimble, 14mm dia 400mm long stay bow and galvanised iron nuts bolts, washers including loop type insulator, vitreous porcelain, white, brown or green, large size, with overall dimensions 65x90mm, clearance of hole 16.0mm, including stay wire, galvanised iron, stay wire 7/4mm stranded, complete all as specified and as directed . Note: Excavation, earth work and PCC shall be measured and paid separately under relevant item of Schedule

Supply and fixing in replacement of old unserviceable/damaged GI pipe with new GI pipes/ Tubes, 'light grade', galvanised, 150mm bore, ISI marked, laid in trenches or fixed to walls/ poles including mild steel clamps, nuts, bolts and washers; for protection of electric cable, complete all as specified and as directed.

Supply and fixing in replacement of old unserviceable/damaged GI pipe with new GI pipes/ Tubes, 'light grade', galvanised, 100mm bore, ISI marked, laid in trenches or fixed to walls/ poles including mild steel clamps, nuts, bolts and washers; for protection of electric cable, complete all as specified and as directed .

Supply and fixing in replacement of old unserviceable/ damaged LT XLPE cable with new XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, heavy duty electric cable with aluminium conductor, 1100 Volts grade, cross-sectional area 10.0 Sqmm, 4.0-core, laid in trenches or passing through pipes, including suitable lugs and accessories for making connections at both ends, complete all as specified and as directed.

M&L for trimming/ cutting of tree not exceeding 30cm girth including cutting of trunk, and branches along the over head LT/ HT lines/ poles, in 3.0mtrs radius all around the conductor and disposal of material to a distance not exceeding 50mtrs and clearing site including making surface even with all necessary tools, plants and manpower, complete all as specified and as directed .

M&L for cleaning away/ cutting of all grass vegetation, saplings, shrubs, creepers, brushwood, undergrowth, roots and trees not exceeding 30cm girth (measured one metre above ground level) around the LT panels, transformers, and removing rubbish outside the periphery of cantonmant area, complete all as specified and as directed .

M&L for preparation of surfaces of old painted pre-stressed concrete LT poles of any size, any section, cleaning the surface with mild steel wire brush and painting pole with one coat of black and white synthetic enamel paint in alternate strips, 30 cm thick each, up to 1.50 mtrs height from the top of coping including marking pole Nos with synthetic enamel paint, in uniform size black colour paint on circle with yellow paint, complete all as specified and as directed .

M&L for preparation of surfaces of old painted steel tubular swaged poles LT poles of any size, any section, cleaning the surface with mild steel wire brush and painting pole with one coat of black and white synthetic enamel paint in alternate strips, 30 cm thick each, up to 1.50 mtrs height from the top of coping including marking pole Nos with synthetic enamel paint, in uniform size black colour paint on circle with yellow paint, including aluminium colour painting to cross arms, bracing, clamps, nuts, bolts etc complete all as specified and directed .

M&L for preparation of surfaces of old painted steel tubular swaged poles LT poles of any size, any section, of two pole structure, cleaning the surface with mild steel wire brush and painting pole with one coat of black and white synthetic enamel paint in alternate strips, 30 cm thick each, up to 1.50 mtrs height from the top of coping including marking pole Nos with synthetic enamel paint, in uniform size black colour paint on circle with yellow paint, including aluminium colour painting to cross arms, bracing, clamps, nuts, bolts etc complete all as specified and directed .

M&L for preparation of surfaces of old painted steel tubular swaged poles HT poles of any size, any section, of two pole structure, cleaning the surface with mild steel wire brush and painting pole with one coat of black and white synthetic enamel paint in alternate strips, 30 cm thick each, up to 1.50 mtrs height from the top of coping including marking pole Nos with synthetic enamel paint, in uniform size black colour paint on circle with yellow paint, including aluminium colour painting to cross arms, bracing, clamps, nuts, bolts etc complete all as specified and directed .

M&L for preparation of surfaces of old painted PCC poles LT poles of any size, any section, of four pole structure, cleaning the surface with mild steel wire brush and painting pole with one coat of black and white synthetic enamel paint in alternate strips, 30 cm thick each, up to 1.50 mtrs height from the top of coping including marking pole Nos with synthetic enamel paint, in uniform size black colour paint on circle with yellow paint, including aluminium colour painting to cross arms, bracing, clamps, nuts, bolts etc complete all as specified and directed.

Supply and fix in replacement 1 x 45 Watt, LED street light fitting, powder coated pressure die cast aluminium compact High power with heat resistant toughened glass with lens, priple locked with built in short circuit protection, over load protection, and surge protection, High/low voltage cut off complete all as specified and directed .

Supply and fix in replacement 1 x 60 Watt, LED street light fitting, powder coated pressure die cast aluminium compact High power with heat resistant toughened glass with lens, priple locked with built in short circuit protection, over load protection, and surge protection, High/low voltage cut off complete all as specified and directed .

Supply and fix in replacement of 1 x 30 watt Circular or square LED Flood with innovative finless design and excellent thermal management and light distribution along with IP66 protection complete all as specified and directed .

Supply and fix in replacement of electronic LED driver for LED light fittings, capacity 60 Watt, 50Hz, complete all as specified and directed .

Supply and fixing in replacement of old unserviceable/damaged GI pipe with new GI pipes/ Tubes, 'light grade', galvanised, 80mm bore, ISI marked, laid in trenches or fixed to walls/ poles including mild steel clamps, nuts, bolts and washers; for protection of electric cable, complete all as specified and as directed .

Supply and fixing in replacement of old unserviceable/damaged GI pipe with new GI pipes/ Tubes, 'light grade', galvanised, 50mm bore, ISI marked, laid in trenches or fixed to walls/ poles including mild steel clamps, nuts, bolts and washers; for protection of electric cable, complete all as specified and as directed .

Supply and fix in replacement of electronic LED driver for LED light fittings, capacity 45/ 50 Watt, 50Hz, complete all as specified and directed .

Supply & fix in replacement of single pointed air termination aluminium rod 12mm dia, 300 mm dong complete all as specified and directed .

Supply & fix in replacement aluminium strip 25mm x 3mm complete with saddles and fixing screws for fitting the strip.(For horizontal/vertical run) complete all as specified and directed .

Supply & fix in replacement Test point terminal block made of gun metal or phosphorus bronze size 75x75x25mm drilled and screwed including 3 nos. 8mm dia 25mm long hex. head screw etc. complete all as specified and directed .

Earthing complete with galvanised iron earth plate electrode 600x600x6mm buried directly in ground (earth pit not less than 2.25mtr deep below ground level) with top edge of earth plate not less than 1.5mtr below normal ground level, connected with galvanised iron wire of 4.0mm dia as earth lead, by means of bolts, nuts, check nuts and washers of galvanized iron or steel complete with 15mm dia GI light grade protection pipe, 20mm dia GI medium grade watering pipe with funnel including charcoal, dust, salt, PCC M-15, type B-1 in pit with precast RCC M-15(1:2:4), type B-1 (using 20mm graded crushed stone aggregates) in cover reinforced with XPM not less than 4.0 Kg per Sqm, test point etc. all as shown in elect