EXTERNAL ELECTRIC SUPPLY, EXTERNAL WATER SUPPLY, ENHANCEMENT OF EXISTING POWER SUPPLY AND CONSTRUCTION SWITCH ROOM AT AF STATION BARRACKPORE UNDER 98 RCC/755 BRTF PROJECT SWASTIK IN WEST BENGAL STATE

Amount

EXTERNAL ELECTRIC SUPPLY

Supply laying & testing cable XLPE insulated screened PVC bedded, galvanized steel strip or wire armored, electric power cables (heavy duty) with stranded aluminum conductor, 11000 volts (Earthed) grade of size 3 core 150 sq mm including excavation, cable laying, protection with sand and brick cushioning, return filling & removal as specified in particular specification and as directed by Engineer-in-Charge.

Supply laying & testing cable XLPE insulated screened PVC bedded, galvanized steel strip or wire armored, electric power cables (heavy duty) 1100 volts grade with stranded aluminum conductor of size 500 sq mm 3.5 core including excavation, cable laying, protection with sand and brick cushioning return filling & removal as specified in particular specification and as directed by Engineer-in-Charge.

Supply laying & testing cable XLPE insulated screened PVC bedded, galvanized steel strip or wire armored, electric power cables (heavy duty) 1100 volts grade with stranded aluminum conductor of size 300 sq mm 3.5 core including excavation, cable laying, protection with sand and brick cushioning return filling & removal as specified in particular specification and as directed by Engineer-in-Charge.

Supply, install, commissioning & testing step down transformer indoor type HT 6.0/11 KV 3 Phase, LT 433 volts, 3 phase 4 wire with off load tap changing on HT side to vary secondary voltage within limit all as per IS: 2026-1977 of capacity 500 KVA. It must complete with standard fittings and accessories required as per latest specification gauges, first fill oil etc.the maximum temperature rise shall not exceed 40 degree celcius in oil and 55 degree in HV/LV winding when measured by resistance method after continuous full load run on an ambient temperature 50 degree celcius. The core of transformer shall be bolt less to reduce hot spots and first grade CRGO sheets shall be used. The insulation level (impulse withstand in KV peak) shall be 170 on HV & 75 on LV side impulse level (power frequency with stand in KV runs) shall be 70 on HV and 28 on LV side. The percentage impedence of the transformer at 75 degree C, rated current of frequency should be 6.25% transformer shall have the following, (a) Rating plate and terminal making plate of HT/LT side (b) Two earthing terminals for body earthing and two additional for neutral brought out on a bushing (c) Lifting lung (d) Dehydrating silicagel breather (e) Oil level indicator with minimum and maximum marking (f) Cooling radiator (g) Thermometer pocket (h) Drain valve with plug on cover plate (i) Conservator tank (j) Oil filling hole with cover including funnel (k) Air release device (l) Winding temperature indicator Note. (i) It should include Cost of RCC foundation for transformer and one side ramp for moving the transformer. (ii) contractor has to intimate/inform the OC Contract well in advance before dispatching the material from factory premises.

Supply, install and testing HT 11 KV outdoor type Go air break switch suitable for vertical mounting fixed type complete with a insulation of rating upto 200 Amps.

Supply & erect 4 pole structure on 11 mtr steel tubular pole consisting of pole with anti-climbing device, PCC foundation & cross arms etc for one incoming and two out going.

Supply, install and testing HT 11 KV outdoor gang operated air-break switch suitable for horizontal or vertical mounting with drop out fuse having 12 insulators of rating upto 200 Amps.

Supply and fixing lighting arrestor HT 11 KV 10 KA station class, including mounting accessories completely fixed.

Supply and fix cable jointing kit for 11 KV grade cable for outdoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armored Al conductor cable of size 120 sq mm to 185 sq mm.

Supply and fix cable jointing kit for 11 KV grade cable for straight through heat shrink type joint complete with jointing materials and accessories suitable for 3 core XLPE armored Al conductor cable of size 120 sq mm to 185 sq mm.

Supply and fix cable jointing kit for 11 KV grade cable for indoor termination heat shrink type joint complete with jointing materials and accessories suitable for 3 core XLPE armored Al conductor cable of size 120 sq mm to 185 sq mm.

Supply, install, testing of APFC Panel with MD-XL capacitor and MCCB as incomer (Auto/Manual option) with 200 KVAR (25 x 8).

Supply, installation, commissioning and testing of LT Panel board indoor type of size 1.5 m x 1.20 m x 0.60 m factory made (CPRI approved) both side openable with hinged and locking arrangement, outgoing cable chamber with same rated aluminum strip from cable chamber to MCCB output, made out of 3.15 mm thick mild steel CRCA sheet supported and fixed on structural frame of angle iron of size 60 x 60 x 6 mm angle iron frame including painting to all internal and external exposed steel surfaces with powder coating paint (5 stage process) with duly fixed in ground with necessary PCC foundation (1:2:4) type B1 with danger notice plate of 1.6 mm thick mild steel sheet, vitreous enameled (white), suitable for 3 phase 4 wire system 440 volts grade with necessary wiring with PVC sheathed stranded copper conductor of appropriate length size with and including fixing lugs, bolts, screws etc complete all as directed by the Engineer-in-Charge and comprising of the following accessories:- (a) Copper bus bar of 1500 amp capacity (size 50 x 6 mm, 1.00 mtr length) - 04 Nos (15 cm gap between two bas bar). (b) LT switch gear 440 volts 3 phase, 4 wire 50 cycles, cubicle or truck type complete with air circuit breaker, overload protection, no-volt release with necessary CTs, meters and cable boxes of rating upto 1000 amps (Incoming) - 01 Nos. (c) LT switch gear 440 volts 3 phase, 4 wire 50 cycles, cubicle or truck type complete with air circuit breaker, overload protection, no-volt release with necessary CTs, meters and cable boxes of rating upto 800 amps (Outgoing) - 01 Nos. (d) LED indicator lamp (yellow, Blue, Red) - 01 Set (Set of three). (e) 3 Phase Multifunction Meter, Model C Class 1, 3 Phase, 5A with Relay - 01 Nos.

Supply and installed steel tubular swaged poles type 410 SP-31 (9 metres long) complete with CI base plate and finial taper plug, bolts, nuts, screws, washer and drilling of holes for continious GI earth wire including foundation. It shall confirm IS 2713-1980 including applying two coats of aluminium paint over one coat of red oxide zinc chrome primer and embedded portion shall be painted with two coats of black paint after prepration of surface complete all as specified and directed by Engineer-in-Charge.

S & F for LED street light fittings comparison of epoxy powder coated housing, enclosed with glass cover in frame 25 watt (BCLST 25 W LED) mounted as per Bajaj Cat No. 169475 all as specified and directed by Engineer-in-Charge.

M & L for street light bracket suitable for LED fittings upto 1.5 RM made out of GI pipe of medium grade 40 mm dia proper shaped, bended, threaded and drilling holes for wire entry and MS clamp of suitable size in proper shape and all as directed and directed by Engineer-in-Charge.

Supply and fix loop in loop out fuse junction box of size 23 x 23 x 16 cm made out of 16 SWG MS sheet with weather proof canopy and locking screw fitted with 5 Amps fuse cutout-01 No, 50 Amps rated connector-03 Nos and neutral link mounted in the box painted with two coats of synthetic enamel paint over a coat of red oxide primer and fixing on steel tubular pole at a height not less than 1.5 m above ground level with the help of clamps two Nos of F1 20 x 3 mm and suitable nuts and bolts including taking down old unserviceable one complete all as directed Engineer-in-Charge.

Supply installation, commissioning and testing of LT panel board for pump house of size 5.0 m x 1.20 m x 0.60 m factory made (CPRI approved), indoor cubical compartmental type, single door, both side open able with hinged and locking arrangement, outgoing cable chamber with same rated aluminum strip from cable chamber to MCCB output, made out of 3.15 mm thick mild steel CRCA sheet supported and fixed on structural frame of angle iron of size 60 x 60 x 6 mm angle iron frame including painting to all internal and external exposed steel surfaces with powder coating paint (5 stage process) with duly fixed in ground with necessary PCC foundation (1:2:4) type B1, with danger notice plate of 1.6 mm thick mild steel sheet, vitreous enameled (white), suitable for 3 phase 4 wire system 440 volts grade with necessary wiring with PVC sheathed stranded copper conductor of appropriate length size with and including fixing lugs, bolts, screws etc complete all as directed by the Engineer-in-Charge and comprising of the following accessories:- Incoming (a) Copper bus bar capacity 1200 Amps of ( Size 50 mm x 6 mm, 400 mtr length)-04 Nos for RYB (10 Cm gap between two bus bar) (b) LT Switch gear 440 volts 3 phase, 4 wire 50 cycles, cubicle or truck type complete with air circuit breaker, overload protection, no-volt release with necessary CTs meters and cable boxes of rating upto 800 Amps. Outgoing (c) MCCB 160 A 415V, 4 Pole, 50 HZ,36 KA (Fixed thermal & Fixed magnetic release) -07 Nos (One spare) (d) MCCB 40 A TPN, 415 Volt, 25 KA (Fixed thermal & Fixed magnetic release - 02 Nos (One spare) (e) LED indicator lamp (Yellow, Blue, Red) -01 Set (Set of three) (f) 3 Phase Multifunction Meter, Model C Class 1, 3 Phase, 5 A with Relay - 01 Nos. (g) S & F time switches 415 volt three phase of 20 Amps rating with contactor fitted inside steel enclosure - 02 Set. (h) Star delta starter suitable for 100.0 HP Motor - 07 Nos (one spare).

Supply, fixing and testing of 15 meter high galvanized mast suitable for 9 lantern symmetrically fitted along with their control gear and having two point suspension system with steel wire rope of 6 mm dia and double drum winch.

Supply, laying and testing cable XLPE insulated screened PVC bedded, galvanized steel strip or wire armored, electric power cables (heavy duty) 1100 Volts grade with stranded aluminum conductor of size 25 sq mm 4 core including excavation, cable laying, protection with sand and brick cushioning, return filling & removal as specified in particular specification and as directed by Engineer-in-Charge.

Supply, laying and testing cable XLPE insulated screened PVC bedded, galvanized steel strip or wire armored, electric power cables (heavy duty) 1100 Volts grade with stranded aluminum conductor of size 16 sq mm 4 core including excavation, cable laying, protection with sand and brick cushioning, return filling & removal as specified in particular specification and as directed by Engineer-in-Charge.

Supply, laying and testing cable XLPE insulated screened PVC bedded, galvanized steel strip or wire armored, electric power cables (heavy duty) 1100 Volts grade with stranded aluminum conductor of size 16 sq mm 2 core including excavation, cable laying, protection with sand and brick cushioning, return filling & removal as specified in particular specification and as directed by Engineer-in-Charge.

Boring of holes under road, pavement, hard standing by trenchless technology using ultra sound technique and necessary machine including HDPE pipe of 150 mm dia suitable for 0.4 mpa working pressure.

M & L for 50 mm bore HDPE pipe PN-10 with fittings, laid in trenches/wall for protection of underground cable when crossing the road /fixing on wall all as specified and directed by Engineer-in-Charge.

M & L for iron Tubes, “light grade” galvanized for cable protection, with all fitting and fixed complete to walls and ceilings or laid in floors of size 32 mm bore.

Supply, fixing and testing rectangular integral 160 W LED flood light with extruded aluminum heat sink, designed to act as efficient heat dissipater, pressure die cast aluminum cover on both sides for holding to extruded aluminum heat sink, luminarie provided with heat resistant toughened glass extruded aluminum control gear comparment is a integral part of luminaire, Degree of Protection IP 66, the driver should have surge voltage, open/short circuit protection, provided with secondary lens optics to get optimum optical performance as per Bajaj Cat No. BARFEG 169642 or equivalent make. LED should be color temp 5700 degree K +/- 300 degree K.

Supply and fixing MS sheet box front side open able on brick/MS Sheet wall or concealed on wall of size 25 cm x 25 cm x 20 cm made out of MS sheet of mm thick outdoor type (IP-54) suitable for fixing DB SPN two way, including painting to all internal and external exposed steel surfaces with powder coating paint (5 stage process) all as required and directed by Engineer-in-Charge.

Supply, fixing and testing sheet metal enclosure DB SPN two way.

Supply, fixing and testing MCB SPN of capacity 6-32 Amp, 10 KA C Curve.

M & L for loop box outdoor type made out of 2 mm thick MS sheet, size 450 x 300 x 150 mm, factory made cubicle shaped total enclosed dust proof, having front, opening and locking arrangement including four aluminum bus bar on porcelain bridge insulator, one porcelain cut out of 16 Amps capacity and enamel danger notice plate duly fixed on the pole by MS clamp of suitable sizes, painted with 2 coats of synthetic enamel paint over a coat of red oxide primer all as specified and directed by Engineer-in-Charge.

Supply installation, commissioning and testing of LT feeder pillar of size 650 mm x 600 mm x 500 mm, factory made (CPRI approved), outdoor cubical compartmental type, single door, both side open able with hinged and locking arrangement outgoing cable chamber with same rated aluminum strip from cable chamber to MCCB output, made out of 3.15 mm thick mild steel CRCA sheet supported and fixed on structural frame of angle iron of size 50 x 50 x 5 mm angle iron frame including painting to all internal and external exposed steel surfaces with powder coating paint (5 stage process) with four legs of 0.5 mtr long duly fixed in ground with necessary PCC foundation (1:2:4) type B1, with danger notice plate of 1.6 mm thick mild steel sheet, vitreous enameled (white), with letters, figures and conventional skull and bones in signal red colour, suitable for 3 phase 4 wire system 440 volts grade with necessary wiring with PVC sheathed stranded copper conductor of appropriate length size with and including fixing lugs, bolts, screws etc complete all as directed by the Engineer-in-Charge and comprising of the following accessories :- (a) Copper bus bar of rated capacity 200 Amps, of size 25 x 3 mm thick, 0.60 mtr long (7.5 cm gap bet two bus bar). (b) MCCB, thermal and fixed type of capacity 25 AMPS, 415 V, 4 Pole, 50 HZ, 16 KA - 01 Nos (Incoming). (c) LED indicator lamp (yellow, Blue , Red ) - 01 Set (Set of three). (d) 3 Phase Multifunction Meter, Model C Class 1, 3 Phase , 5A with Relay - 1 Nos. (e) S & F time switches 415 volt three phase of 20 Amps rating with contactor fitted inside steel enclosure - 01 Set

Supply installation, commissioning and testing of LT feeder pillar of size 650 mm x 600 mm x 500 mm, factory made (CPRI approved), outdoor cubical compartmental type, single door, both side open able with hinged and locking arrangement, outgoing cable chamber with same rated aluminum strip from cable chamber to MCCB output, made out of 3.15 mm thick mild steel CRCA sheet supported and fixed on structural frame of angle iron of size 50 x 50 x 5 mm angle iron frame including painting to all internal and external exposed steel surfaces with powder coating paint (5 stage process) with four legs of 0.5 mtr long duly fixed in ground with necessary PCC foundation (1:2:4) type B1, with danger notice plate of 1.6 mm thick mild steel sheet, vitreous enameled (white), with letters, figures and conventional skull and bones in signal red colour, suitable for 3 phase 4 wire system 440 volts grade with necessary wiring with PVC sheathed stranded copper conductor of appropriate length size with and including fixing lugs, bolts, screws etc complete all as directed by the Engineer-in-Charge and comprising of the following accessories:- (a) Copper bus bar of rated capacity 200 Amps of size 32 x 6 mm thick, 0.60 mtr long (7.5cm gap between two bus bar). (b) MCCB 20 A 4 Pole 10 KA (Fixed thermal & fixed magnetic setting) (Incoming). (c) MCCB 15A 4 Ploe 10 KA (Fixed thermal & fixed magnetic setting) (Outgoing). (d) LED indicator lamp (yellow, Blue , Red) - 01 Set (Set of three). (e) 3 Phase Multifunction Meter, Model C Class 1, 3 Phase , 5A with Relay - 01 Nos. (f) S & F time switches 415 volt three phase of 20 Amps rating with contactor fitted inside steel enclosure - 01 Set.

M & L Earthing of machinery/equipment installed at power house/substation using 25 x 3 mm copper strip and copper earth plate of size 300 x 300 x 3 mm as earth electrode. Electrode buried directly in ground, earth pit not less than 2.25 meter below normal ground level with top edge of plate not less than 1.5 meter. electrode should be connected to copper strip by means of connected tinted copper bolt, nuts, check nuts and connected to earth test point with and including necesssary earth work in any type of soil, return filling, removal of surplus soil etc, filling adequate qty of charcoal dust, common salt packed all ground the earth plate upto funnel with wire mesh provided inside concrete earth pit for watering arrangement complete and testing on completion.

M & L Earthing for poles & other machinery /eqpt using GI wire as Earthing lead and MS Galvanized earth Plate of Size 60 cm x 60 cm x 6 mm as earth electrode.

Supply and fixing integral LED aviation light comprising of aluminum alloy housing with polycarbonate enclosure including GI pipe 32 mm (0.5 mtr) and all fixing arrangement all as required and directed by Engineer-in-Charge.

M & L for wiring for circuit/sub main wiring alongwtih earth wire with the following sizes of FR PVC insulated copper conductor 2 x 6.0 sq mm + 1 x 4.0 sq mm earth wire, single core cable in surface/recessed as required through PVC conduit.

M & L for cutting PCC/road/hard standing and making good disturbed surfaces by using PCC type C1, 1:3:6 (using 20 mm graded stone aggregates) for fixing /laying the pipe complete all as directed by the Engineer-in-Charge.

M & L for cutting, bending, welding, drilling hole on angle iron of size 90 mm x 90 mm x 10 mm for making arrangement for fixing of LED flood light fittings including making of suitable size clamps and the same to be painted with two coat of synthetic enamel paint over a coat of red oxide all as specified and directed by Engineer-in-Charge.

M & L for cement concrete in foundations (1:4:8) type D2 filling and mass concrete with aggregates of size 40 mm graded.

M & L for Brick work with sub-class 'B' bricks, straight or curved on plan to any radius in half brick thick walls built in CM 1:6.

Hardcore of gauge exc 63 mm broken stone but not exc 100 mm, deposited, spared and leveled in layers n exc. 15 cm thick, watered and rolled/rammed to a true surface all as directed by Engineer-in-Charge.

M & L for 150 mm PCC Type B-1, 1:2:4 (20 mm graded stone aggregate) slab flooring, bedded, and jointed in cement mortar 1:6 and pointed in cement mortar 1:3 with 40 mm thick on top.

Supply, fixing and testing automatic rising boom barrier, boom length 6. meter, height of boom 914 mm boom dimension 100 x 40 mm, IP 54, single phase 230 Volt AC, 50 HZ all as per Godrej Model No. GVB6.

Supply, fixing and testing of traffic light Red/Green, visible from both side vertical type, single phase supply 230 Volt IP 54 complete all as required.

Supply, installation, commissioning & testing of 500 KVA silent DG set 415 V, 3 phase 4 wire water cooled electric start with 4 stroke compression engine designed to run continuously at 1500 RPM as per IS : 10001/10002 and alternator as per IS : 13364 complete with relay panel, control panel consisting of start key switch,lub oil pressure gauge, ammeter, voltmeter, battery,electrical battery charger, saftey shutdown system for low oil pressure and high temperature, control panel having meters sound proof canopy and foundation etc.

Supply, installation, test and commissioning of 11 KV 630 Amps, SF6 gas filled with non extensible Ring Main unit (RMU) floor mounted, manual opperations and with internal copper bus bars. All live parts, bus bars, LBSs, VCBs connections of RMU should be enclosed in stainless steel tank of 2 +/-0.5 mm thick sealed for life having IP67 degree of protection filled with as insulation with leakage rate less than 0.1% per year tested as per IEC62271-200. RMU shall have solid earthing system. RMU should complete with all acccessories such as Terminal boots ,VPIS, FPI, cable supports, mechanical indications for load break switch ON/OFF, VCB ON/OFF, spring charge, manometer as per with IEC standards 62271-200. internal arc type tested for 21KA for 1 sec. VCB used must be tested for minimum 50 nos of electrical operations at rated short circuit breaking current without inspection. 1 No. incoming (LBSs) and 2 Nos. outgong (VCBs) Rated voltage should be - 12KV Rated power frequency voltage - 28 KV Rated lightining impulse withstand voltage - 75 KV Rated current for VCB feeder 630A Rated short time current withstand 25 KA for 1 sec Rated short time making current 50 KA Nominal operating gas pressure - 1.2 bar abs at 20 deg C Ambient temperature-) -25 deg C to +40 deg C Rated internal arc rating - 21 KA for 1 sec IAC - AFLR in tank and cable box both RMU shall have manual operation. 'LIve cable' LED indicators through capacitor volatge dividers mounted on the bushings. RMU, VCBs, LBSs,vaccum interrupter, VPIS, FPI & Numerical protection relay etc shall be of same make RMU shall be provided with protection CTs rated 100/1 amps class- 10P10 accuracy, 2.5 VA burden of circuit breaker. Air circuit breaker feeders shalll be self powered and provided with over current & earth fault protection for transformer and shall have serial port for communication on modbus protocol. RMU shall be provided with fault passage indicators in every feeder having LCD display and auto reset facility and one NO/NC auxiliary contact fo showing status on SCADA. Note (i) Factory inspection & testing shall be carried by Rep of accepting oficer in factory premises (ii) Contractor has to inform/ intimate the OC Contract well in advancee before dispatching the material from factory premises.

ENHANCEMENT OF EXISTING POWER SUPPLY

Supply, install, commissioning & testing step up/ step down transformer indoor type complete filled with oil, with standard fittings and foundation, HT 33 KV, phase, secondary 11 KV- 6.6 KV (Double wound copper), 3 phase, with OFF, load tap changing on HT side to vary secondary voltage within limit all as per IS 2026 of capacity 5000 KVA. the maximum temperature rise shall not exceed 40 degree celcius in oil and 55 degree in HV/LV winding when measured by resistance method after continuous full load run on an ambient temperature 50 degree celcius.the core od transformer shall be bolt less to reduce hot spots and first grade CRGO sheets shall be used.the insulation level (impulse withstand in KV peak) shall be 170 on HV & 75 on LV side impulse level (power frequency with stand in KV runs) shall be 70 on HV and 28 on LV side.the percentage impedence of the transformer at 75 degree C,rated current of frequency should be 6.25%.transformer shall have the following (a) Rating plate and terminal making plate of HT/LT side (b)Two earthing terminals for body earthing and two additional for neutral brought out on a bushing (c) Lifting lung (d) Dehydrating silica gel breather (e)Oil level indicator with minimum and maximum marking (f) Cooling radiator (g) Thermometer pocket (h) Drain valve with plug on cover plate (i) Conservator tank (j) Oil filling hole with cover including funnel (k) Air release device (l) Winding temperature indicator Note.(i) It should include Cost of RCC foundation for transformer and one side ramp for moving the transformer. (ii)contractor has to intimate/inform the OC Contract well in advance before dispatching the material from factory premises.

Supply install commissioning & testing HT 33 KV 3 phase 50 cycle one incoming and two outgoing totally enclosed metal clad SF 6 switchgear (GIS speifications) having Rupturing capacity upto 750 MVA consisting of suitable CTs, PTs, ammeter, voltmeter,indication lamps, frequency meter indication with over current, surge current & earth fault protection relay and 4 ways anniuncator window as required and of rating 400 Amp.150 AH VRLA/maintenance free type battery bank with battery each with suitable charger/as per manufacturer recommendations Note- (i) factory inspection & testing shall be carried by rep of accepting officer in factory premises (ii) Contractor has to inform/intimate the OC Contract well in advance before dispatching the material from factory premises.

Supply and install commissioning & testing HT 11 KV 3 phase 50 Hz Totally enclosed metal clad switchgear (AIS specifications) complete with vacuum circuit breaker having Rupturing capacity 250 MVA,consisting of suitable CTs, PTs, ammeter, voltmeter,indication lamps, frequency meter indication with over current, surge current & earth fault protection relay and 4 ways anniuncator window as required and of rating 400 Amp (2 incoming,1 outgoing, 1 buscoupler) maintenance free type battery bank with battery each with suitable charger/as per manufacturer recommendations(Panel will be used on 6.6 KV) Note- (i) factory inspection & testing shall be carried by rep of accepting officer in factory premises (ii) Contractor has to inform/intimate the OC Contract well in advance before dispatching the material from factory premises.

Supply laying & Testing cable XLPE insulated screened PVC bedded galvanized steel strip or wire armored, electric power cables (heavy duty) with aluminum conductor 33000 volts (Earthed) grade of size 3 core 150 sq mm including excavation, cable laying, protection with sand and brick cushioning, return filling & removal as specified in particular specification and as directed by Engineer-in-Charge.

Supply laying & Testing cable XLPE insulated screened PVC bedded galvanized steel strip or wire armored, electric power cables (heavy duty) with stranded aluminum conductor, 11000 volts (Earthed) grade, of size 3 core 150 sq mm including excavation, cable laying, protection with sand and brick cushioning, return filling & removal as specified in particular specification and as directed by Engineer-in-Charge.

Supply and fix cable jointing kit for 33 KV grade cable for indoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armored. Al conductor cable of size 150 sq mm to 240 sq mm including excavation, cable laying, protection with sand and brick cushioning, return filling & removal as specified in particular specification and as directed by Engineer-in-Charge.

Supply and fix cable jointing kit for 11 KV grade cable for outdoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armored Al conductor cable of size 120 sq mm to 185 sq mm including excavation, cable laying, protection with sand and brick cushioning, return filling & removal as specified in particular specification and as directed by Engineer-in-Charge.

M & L Earthing of machinery /equipment installed at power house/substation using 25 x 3 mm Copper strip and copper plate of size Earth 300 x 300 x 3 mm as earth electrodes. Electrode buried directly in ground, earth pit not less than 2.25 meter below normal ground level with top edge of plate not less than 1.5 meter. electrode should be connected to copper strip by means of connected tinted copper bolt, nuts, check nuts and connected to earth test point with and including necesssary earth work in any type of soil, return filling, removal of surplus soil etc, filling adequate qty of charcoal dust, common salt packed all ground the earth plate upto funnel with wire mesh provided inside concrete earth pit for watering arrangement complete and testing on completion.

Supply, install and testing of 33KV single phase,class EH, window type, CT having HST 36 KV, STC 31.5 KA for 3 sec as per IS 2705.The ratio and output of the C.T. Core should be as follows Core1: Ratio: 1000-500/1A; Class: PS; Rct<= 5.0ohm at 75deg. cent; Vk>= 500V; Im <= 30mA at Vk/2, Rated Primary Current: 1000A. Rct, Im and Vk correspond to 1000/1A ratio. Purpose: Cable Differential Protection Core2: Ratio: 200-100/5 A; Class: 0.2, Burden – 15VA, ISF<=5 Class & Burden specifications correspond to 200/5 A ratio. Purpose: Tariff Metering Note: Core 1 &2 shall be in one mould.

Supply install and testing of 33KV single phase withdrawable type PT connected in circuit side of the Incomer CBs in star / star fashion for instrumentation and metering and complete with HV & LV fuses, withdrawal trolley, PT primary and secondary isolating contacts, to be provided in the incomer panel only.PT can also be mounted in the CB trolley itself and its secondary terminals should be wired up to the terminal block in the LT compartment. The ratio and output of the P.T. Core should be as follows Ratio: 33 / √ 3 kV / 110/√ 3Volts Burden - 25 VA per phase; Class – 0.2 Voltage Factor - 1.2 continuous & 1.9 for 8 hrs. Purpose: Tariff Metering

EXTERNAL WATER SUPPLY

Supply, Installation, Testing and commissioning of end suction Horizontal centrifugal pump, Mixed Flow semi open type pump set having SS Impeller fitted with fully automatice priming & de priming system suitable for pumping storm water with sand and semi-solids, each having Cl casing. SS410 shaft & Sleeve. The pump shall be capable to discharge 1270 cum/hr at a head of 15 M and capable of suction lift in the range 6.5 to 7 M. pump operating speed shall not more than 988 rpm Coupled with electric Motor of suitable rating complete with auto-starting mechanism. The complete set shall be mounted on a heavy duty common base frame including coupling guard, foundation bolt and suitable RCC foundation etc. as required.

Supply and laying of Ductile iron 400 mm dia S/S or flanged pipe (IS-8329-2000) centrifugally cast including specials of Class K-7 with inside cement mortar lining and outside black bitumen coating complete all as specified and directed. It includes all accessories required like SS reinforced Nut,Bolt and Flange, MS Gasket and Reducer.

Supply and install complete Valves, Sluice, flanged of class 1.0 PN, size 400 mm (16”) dia.

Supply and install Non return Valve conforming to IS 5312, complete of size 400 mm (16”) dia

M & L for water pressure gauge of 10 KG/Cm2

Plain Cement Concrete Type B1 1:2:4 (using 20 mm Graded granite stone aggregate) in bases/pedestals for pipe lines, mud stops or chamfered on edges.

M & L for making good surface where cutting/ Excavated Road/ hard standing /path by making cement concrete filling with mass concrete of 1:3: 6 type C1 with 20 mm graded aggregate complete all as specified.

Excavation over areas not exceeding 1.5 m deep and getting out in hard/dense soil.

Excavation over areas exceeding 1.5 m deep not exceeding 3.00 m deep and getting out in hard/dense soil.

M & L for PCC 1:4:8 type D2 using 40 mm graded aggregate as in foundation, filling and mass concrete.

M & L for PCC 1:2:4 type B1 using 20 mm graded aggregate as in foundation, filling and mass concrete.

M & L for RCC type M 30 using 20 mm graded granite aggregate in foundations incl rafts footings and mass concrete

Fair finished flat form work to sides of concrete foundations rafts etc.

S & F mild steel TMT bars 10 mm dia and over cut to length bent to shape required including cranking bending spirally for hooping for columns hooking ends and binding with mild steel wire annealed not less than 0.9 mm dia or securing etc.

S & F mild steel TMT bars 6 mm to 8 mm dia and over cut to length bent to shape required incl cranking bending spirally for hooping for columns hooking ends and binding with mild steel wire annealed not less than 0.9 mm dia or securing etc.

Returning and filling in including spreading leveling watering and well ramming in layers not exceeding 25 cm thick with soils

Removing excavated soils not exceeding 500 m and depositing where directed by Engineer-in-Charge .

M&L for, 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 paint.

Supply, laying and fitting pipe galvanized medium class 25 mm dia.

Valve stop, screwed, supplied and installed complete for size 25 mm dia pipe.

M&L construction of brick masonry valve of pit of size 120 cm x 120 m x 120 cm (internal dimension) with one brick thick PCC 1:4:8 type D2 (using 20 mm graded crashed stone aggregate) as in foundation concrete incl PCC 1:3:6 type C1 (using 20 mm graded crashed stone aggregate) as in bedding and coping 10 mm thick cement plaster in cement mortar (1:4 ) internally & externally upto 15 cm below ground level providing value pit 50 x 50 x6 mm angle iron frame all round the fixed point by means of 4 Nos hold fast 150 mm long made out of flat iron 40 x 6 mm embedded in PCC block (1:2:4) type B1 (using 20 mm graded crashed stone aggregate) of size 230 x 200 x 100 mm, incl provn of hing welded with angle iron frame and mild steel over 3 mm thick, mild steel handle of suitable and size welded with Mild steel cover & suitable locking arrangement & applying two coats of synthetic enamel paint over a coat of red-oxide primer incl necessary excavation work in soft/lose soil complete all as specified & directed by Engineer-in-Charge.

CONSTRUCTION OF SWITCH ROOM

Construction of single story switchroom including architectural design, structural design, specifications and drawing (plinth area and height of building shall beas per drawing attached)

Mars Developments

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