MAINT AND REPAIRS TO VCB HT CABLES AND CONNECTED WORKS AT VARIOUS E M INSTALLATIONS UNDER GE (NW) NAVY NAGAR COLABA MUMBAI

Amount

Disconnecting and dismantling the existing indoor type VCB11 KV horizontal draw out type VCB trolly of rupturing capacity 250/350 MVA, 400/630/800 Amps from location and repair /overhauling including replacement of damaged spare parts and carrying out with the following all as specified and directed by Engineer-in-Charge. Note :- spare parts will be measured & paid seperately (i) Inspecting / overhauling of manual / motorised spring drive mechanism by checking mechanism, motor and gear assembly, big gear assembly, stop bolt assembly, main shaft interlocking assembly, closing spring assembly, small cam with screw,motor cut -off limit switch, butter fly swich assembly and apply multi grease lubricant to function smoothly. (ii) Inspecting / overhauling of tripping assembly,earthfault release assembly, tripping coil, auxiliary switch and checking of electrical wiring system. (iii) Inspecting / overhauling /cleaning and inspecting through insulators, vacuum interuptors by carbon cleaner solution and apply dry graphite conductive sealant for electrical contacts to avoid carbon deposits on contact surfaces. (iv) Assembling all items/components parts to the respective position & testing the breaker with High Voltage(DC) and meggering before and after high voltage test complete.

Disconnecting and dismantling the existing outdoor type RMU(2Incomings and 1No out going) 11 KV rupturing capacity 350 MVA, 630Amps from location and repair /overhauling including replacement of damaged spare parts and carrying out with the following all as specified and directed by Engineer-in-Charge. (i) Inspecting / overhauling of manual / motorised spring drive mechanism by checking mechanism, motor and gear assembly, big gear assembly, stop bolt assembly, main shaft interlocking assembly, closing spring assembly, small cam with screw,motor cut -off limit switch, butter fly swich assembly and apply multi grease lubricant to function smoothly. (ii) Inspecting / overhauling of tripping assembly,earthfault release assembly, tripping coil, auxiliary switch and checking of electrical wiring system. (iii) Assembling all items/components parts to the respective position & testing the breaker with High Voltage(DC) and meggering before and after high voltage test complete.

Overhauling, calibration and secondary injection of over current earth fault relays/release on each multiple setting readjustment by artificial load complete all as specified including testing complete.

Dismantling, overhauling and testing Potential transformer capacity 11 KV / 110 volts AC and replacement of worn out spares such as contacts, bushing, control wiring fibre plates, gaskets , transformer oil and applying multi grease to the mechenical parts & dry graphite conductive sealant to contacts etc & re-assembling the same and commissioning complete all as specified and directed by Engineer-in-Charge. (Note : Spare parts and oil will be measured and paid seperately)

Fixing only PT Bushing epoxy type Trolly mounted with gasket.

Fixing only PT Bushing epoxy type Housing mounted with gasket.

Fixing only HRC PT fuse 1Amps,11KV

Testing of dielectric strength of transformer oil of indoor type transformer, 11KV/433 volt, filteration of transformer oil by passing through filtration plant to remove moisture, impurities and improving di-electic strength to above 40 KV for 1 minute including new transformer oil for toping up & testing after filtration complete as specified. (Note: Supply transformer oil will be measured & paid seperately.)

Supply only transformer oil with 60KV di-electric strength for topping up and replacement of old/burnt transformer oil complete all as specified. Make: Power /Asian/Savita/Electric.

Supply and fixing in repair of breather with 500 Grams celica gel of indoor type transformer 300KVA/400/500 KVA, all as specified and directed by Engineer-in-Charge.

Supply and fixing in repair of thermometer(oil temperature gauge) for indoor type transformer, all as specified and directed by Engineer -in -Charge.

Material and labour for Spray Painting of Transformer of following capacity, indoor type with two coats of synthetic enamel paint over a coat of red oxide primer after cleaning, scraping, and filling of cavities and all as specified and as directed.

Transformer 1500/1000KVA ,11KV/440Volt

Transformer 630/800KVA ,11KV/440Volt

Transformer 200KVA ,11KV/440Volt.

Material and labour for disconnecting of LT and HT cable carefully from Transformer and draining out transformer oil, dismantling transformer top cover and dismantling of 4Nos LT bushing and 3Nos of HT bushing including necessary tools and plant for attending leakage problem with replacement of oil seal, all gaskets, thermometer(oil temperature gauge) and reassembling complete all as directed.(Note : New Transformer oil and spare parts will be measured and paid separately excluding oil seal and thermometer i.e oil temperature gauge)

Transformer 1500/1000/800KVA ,11KV/440Volt

Transformer 300 to 650 KVA ,11KV/440Volt

Supply only burnt out studs and bushing with nuts of any material by providing new copper alloy stud with nut,washers and bushing with oil seals on HT side all as directed for following capacity transformers:-

Transformer 1500/1000/800KVA ,11KV/440Volt

Transformer 300 to 650 KVA ,11KV/440Volt

Supply only burnt out studs and bushing with nuts of any material by providing new copper alloy stud with nut,washers and bushing with oil seals on LT side all as directed for following capacity transformers:-

Transformer 1500/1000/800KVA 11KV 440 V

Transformer 300 to 650 KVA,11KV/440Volt

Supply only spare parts suitable for ABB make type:VD4 , Uniy Safe VCB Panels Boards , Rating 11 KV , 800A, 26.3kA indoor type complete all as specified and directed by Engineer-in-Charge.

Power Factor meters,Digital type 96x96mm, Voltage 110V AC, Current 5Amps, PTR 11KV/110V,Accuracy 2deg, Aux Supply 230Volts AC, Range 100LAG-1.000-100LEAD Make: AE or equivalent.

Multi Function meters,Digital type 96x96mm, Aux Supply 230Volts AC,Type: EM6436 Conzerv(Schneider Electric).

Opening / Closing Push Button Assembly

Motor Charging mechanism gear Drum box

Vaccum Interupter assembly

Limit Switches

Closing Coil Assembly 30V DC

Spring Charging Motor 230Volts

Spring return latch

Tripping Coil assembly 30Volts DC

Auxiliary Switch with link

Spout Insulator assembly (3Phase) feeder side

Spout Insulator assembly (3Phase) Bus bar side

Potential Transformer, Resin cast dry type 11KV/ 110Volt /Rout3,100VA burden, Class 1 Accuracy,Trolly mounted.

Current Transformers,resin cast dry type,150/100, 5 +5A Class1 and 5p10,15VA,26.3kA/3Sec.

Current Transformers,resin cast dry type, 100/50 5+5A Class1 and 5p10,15VA,26.3kA/3Sec.

Current Transformers,resin cast dry type, 50/30,5+5A Class1 and 5p10, 15VA ,26.3kA/3Sec.

TNC Switch,25A,Type:BCA02P004E86/S (Kaycee)

Indicating Lamps LED type,30Volts DC Make: Teknic or equivalent.

Indicating Lamps LED type,110Volts AC Make: Teknic or equivalent.

Ammeters,Digital type 96x96mm,CTR 150/100/5Amps Class 1 acuracy,Aux Supply 230Volts AC type:DM3258 Conzerv (Schneider Electric)

Ammeters,Digital type 96x96mm,CTR 100/50/5Amps Class 1 acuracy,Aux Supply 230Volts AC type:DM3258 Conzerv (Schneider Electric)

Ammeters,Digital type 96x96mm,CTR 50/30/5Amps Class 1 acuracy,Aux Supply 230Volts AC type:DM3258 Conzerv (Schneider Electric)

Voltmeters,Digital type 96x96mm,Voltage 11KV, PTR 11KV/110V, class 1 acuracy, Aux Supply 230Volts AC, Type:DM 3257 Make Conserv (Schnieder electric)

Relay Nuemerical IDMTL+Inst O/C &E/F, TypeN141 (Art.No.1MYN742838D) 30V DC,CTR 5A,Make:ABB

Relay Electromechanical type, Tripping relay Type P08nCH2JS 30V DC make.ABB

Supply only spare parts suitable for CG make type:UNIVAC VCB Panels Boards , Rating 11 KV , 800A, 26.3kA indoor type complete all as specified and directed by Engineer-in-Charge.

Power Factor meters,Digital type 96x50mm,Voltage 110V AC, Current 5Amps, PTR 11KV/110V,Accuracy 2deg, Aux Supply 230Volts AC, Range 100LAG-1.000-100LEAD Make: AE

Opening / Closing Push Button Assembly

Motor Charging mechanism gear box

Vaccum Interupter assembly

Limit Switches

Closing Coil Assembly 30V DC

Spring Charging Motor 230Volts

Spring return latch

Tripping Coil assembly 30Volts DC

Auxiliary Switch with link

Spout Insulator assembly (3Phase) feeder side

Spout Insulator assembly (3Phase) Bus bar side

Potential Transformer, Resin cast dry type 11KV/ 110Volt ,100VA burden class 1 accuracy,Top mounted.

Current Transformers,resin cast dry type,75/50, 5 +5A Class1 and 5p10,15VA,26.3kA/3Sec.

Current Transformers,resin cast dry type,50/30, 5 +5A Class1 and 5p10,15VA,26.3kA/3Sec.

Current Transformers,resin cast dry type, 40/30,5+5A Class1 and 5p10,15VA,26.3kA/3Sec.

Current Transformers,resin cast dry type, 30/20 5+5A Class1 and 5p10,15VA,26.3kA/3Sec.

TNC Switch,10A, (Salzer)

Indicating Lamps LED type,30Volts DC Make: Teknic

Indicating Lamps LED type,110Volts AC Make: Teknic

Voltmeters,Digital type 96x96mm,Voltage 11KV, PTR 11KV/110V, class 1 acuracy, Aux Supply 230Volts AC, Make :AE

Relay Nuemerical IDMTL+Inst O/C &E/F, Type MC 61A 30V DC,CTR 5A,Make:L&T

Master trip relay Type B24 30V DC make.EasunReyrole

Supply only spare parts suitable for Siemens make type:3AHO104-1Z , 11K8BK80Plus VCB Panels Boards , Rating 11 KV , 800A, 26.3kA indoor type complete all as specified and directed by Engineer-in-Charge.

Opening / Closing Push Button Assembly

Motor Charging mechanism gear box

Vaccum Interupter assembly

Limit Switches

Closing Coil Assembly 30V DC

Spring Charging Motor 230Volts

Spring return latch

Tripping Coil assembly 30Volts DC

Auxiliary Switch with link

Spout Insulator assembly (3Phase) feeder side

Spout Insulator assembly (3Phase) Bus bar side

Potential Transformer, Resin cast dry type 11KV/ 110Volt /Rout3,100VA burden, Class 1 Accuracy,Trolly mounted.

Current Transformers,resin cast dry type, 40/20,5+5A Class1 and 5p10,15VA,26.3kA/3Sec.

TNC Switch,10A, make: Switron

Indicating Lamps LED type,30Volts DC Make: Teknic

Indicating Lamps LED type,110Volts AC Make: Teknic

Ammeters,Digital type 96x96mm,CTR 40/20/5Amps Class 1 acuracy,Aux Supply 230Volts AC type:DM3110 Conzerv(Schneider Electric)

Voltmeters,Digital type 96x96mm,Voltage 11KV, PTR 11KV/110V, class 1 acuracy, Aux Supply 230Volts AC, Type:DM 3210 MakeConserv (Schnieder electric)

Relay Nuemerical IDMTL+Inst O/C &E/F, Type : MRA- Pro-V2 30V DC,CTR 5A,Make C&S Electric

Master trip relay Type VAJH134F0251BBA 30V DC make.: Alstom.

Supply only spare parts suitable for Schnieder make 11K8BK80Plus VCB Panels Boards , Rating 11 KV , 630A, 26.3kA indoor type complete all as specified and directed by Engineer-in-Charge.

Opening / Closing Push Button Assembly

Vaccum Interupter assembly

Limit Switches

Closing Coil Assembly 30V DC

Spring Charging Motor 230Volts

Tripping Coil assembly 30Volts DC

Auxiliary Switch with link

Spout Insulator assembly Epoxy type

Potential Transformer, Resin cast dry type 11KV/ 110Volt /Rout3,100VA burden, Class 1 Accuracy,Trolly mounted.

Current Transformers,resin cast dry type, 30/20,5+5A Class1 and 5p10, 15VA ,26.3kA/3Sec.

TNC Switch,10A, make: Switron

Indicating Lamps LED type,30Volts DC Make: Teknic

Indicating Lamps LED type,110Volts AC Make: Teknic

Ammeters,Digital type 96x96mm,CTR 40/20/5Amps Class 1 acuracy,Aux Supply 230Volts AC type:DM3110 Conzerv(Schneider Electric)

Voltmeters,Digital type 96x96mm,Voltage 11KV, PTR 11KV/110V, class 1 acuracy, Aux Supply 230Volts AC, Type:DM 3210 MakeConserv (Schnieder electric)

Relay Nuemerical IDMTL+Inst O/C &E/F, Type : MRA- Pro-V2 30V DC,CTR 5A,Make C&S Electric

Supply & fix in repair strip type heater 80watt with control wiring suitable for indoor VCB,11 KV switch gear Panel board complete all as specified and directed by Engr-in-Charge.

Dismantling Air Circuit Breaker 4pole/3pole, 630Amps to 1200Amps, 415 Volts, draw out/fixed type from location and repair /overhauling of spring drive mechanism, coil, auxiliary switch including setting of over load coil, no volt coil, tripping coil & apply multi grease for mechnical parts, cleaning and inspecting male and female contacts and apply dry graphite conductive sealant for contacts, checking of electrical wiring system, testing, and assembling all items/components parts to the respective position and testing complete all as specified and directed by Engineer-in-Charge.(Note : Spare parts will be measured and paid separately)

Spring Charging Handle suitable for upto 2000A ACB

ARC Chute suitable for 1250 A to 2000A ACB

Material & Labour for repairs/ Overhauling /Servicing to Existing LT electric panels Indoor type of each Transformer by taking shut down from appropiate authority including checking loose connections and tight connection and cleaning inside/out side all connection, replacing all cable glands,thimbles and lugs as per the size of existing cable, applying petrolium jelly on the contactors, providing new insulation tape to bus bars, repair to broken /hanging doors by fixing hinges or welding the door to make it servicable, spray painting (silver colour) / powder coating and testing the entire panel board after the completion of servicing up to the satisfication of Engr-in-charge all as directd and specified. Note :- The tenders quoted rate per unit shall deemed to be inclusive of taking out burnt ACB/ MCB/MCCB/Voltmeter/ Ampiermeter/CT/LED lamps of any type and discription etc and refixing the same, which shall be measured and paid as supply only vide relivent items of this schedule (i) Cleaning inside the panel and all incoming and out going feeders i.e includinging MCCB/Changeover switches/Contactors/ ACB's throughly with help of Vaccum Cleaner.(ii) Checking the loose connections of incoming and out going feeders and rectifify the same with help of new GI nut bolts and washers

(iii) Replacing the burnt out color coated PVC Sleeve of main and fedders bus bar with appropriated size of New PVC heat shrinkable sleeves -01Job (iv) Replacing Burnt out Voltmeters/Ammeters/Indicating Lamps/Hrc Fuses.(Note: New items will be measured and paid separatly)-01Job (v) Replacing burnt out control wiring of Ammeter/Voltmeter/Indicating lamps and CT'swith 2.5/1.5Sqmm copper single core,1100V grade copper conductor cable- 01Job (vi) Replacing Burnt out Bus Bar of incomming and out going feededs with approprieted size of new bus bar (Copper/Aluminum) -01Job( Note : Bus Bar will measured and paid separately). (vi) Replacing Burnt out Insulators of incomming and out going feeders with approprieted size of new Insulators -01Job( Note : Insulators will measured and paid separately) (vii) Spray Painting of Panel Board with one coat of synthetic enamel paint.

Supply & fix Aluminium Bus Bar strips, of any size, for extention of MCCB terminals for cable terminations, inside the cable alley of LT panel board, duly supported on the FRP / DMC support insulators including necessary drilling / bending to obtain required shape and size complete all as specified and as directed. Note :- (a) Size of the strip shall be determined depending upon the current carrying capacity of the individual outgoing MCCBs. (b) Overall length of the strip shall be measured and paid after necessary conversion into weight. (c) Cost of drilling / bending / Grinding of the strips at site as required shall be included in the unit rate quoted. No extra payment shall be admissible on that account. (d) Rate of Bolts, Nuts etc shall be included in quoted rate.

Supply & fix Copper Bus Bar stips, of any size, for extention of MCCB terminals for cable terminations, inside the cable alley of LT panel board, duly supported on the FRP / DMC support insulators including necessary drilling / bending to obtain required shape and size complete all as specified and as directed. Note :- (a) Size of the strip shall be determined depending upon the current carrying capacity of the individual outgoing MCCBs. (b) Overall length of the strip shall be measured and paid after necessary conversion into weight. (c) Cost of drilling / bending / Grinding of the strips at site as required shall be included in the unit rate quoted. No extra payment shall be admissible on that account. (d) Rate of Bolts, Nuts etc shall be included in quoted rate.

Supply & fix of suitable type and size FRP / DMC bus bar support insulator (Bridge Insulator) for fixing the extended aluminium/copper bars, for cable terminations, duly fixed in the body of the panel board including galvanized steel bolts, nuts, washers etc.and necessary drillings, in the panel body, complete all as specified and as directed.

Supply & fix in repairs indicating lamp holder with bulb LED(Red Yellow,Blue,Green) type to indicate incoming supply suitable for 24 V DC/110 VAC/230Volts AC and all as specified and directed. Make:Teknic/ C&S /L&T

Supply , fix ,test and commissionning in repair in existing panel ACB. 4Pole, 630Amps ,MDO ,50KA suitable for 415V, 3phase, AC supply including necessary modification in panel with 2mm thick CRCA sheet door and suitable size of Copper bus bar with PVC sleev and inculing dismantling of burnt ACB all specified and directed. Make : Schneider/ABB/Legrand.

Material and labour for fault finding on HT cables of any size and any length with fault detective machine by thumbing method and suitable high voltage complete all as specified and as directed by Engineer-in-Charge.

Supply and fix cable jointing kit Straight Through Joint for 11KV grade cable complete with Jointing material (Heat shrinkable) and accessories suitable for 3 core XLPE armoured, alluminum conductor cable of size 90 to 185 sq mm complete all as specified and as directed by Engineer-in-Charge.

Supply and fix cable jointing kit, End Termination Joint indoor for 11KV grade cable complete with Jointing material (Heat shrinkable) and accessories suitable for 3 core XLPE armoured, alluminum conductor cable of size 95 to 185 sq mm complete all as specified and as directed by Engineer-in-Charge.

Supply and lay cable XLPE Insulated screened PVC bedded, galvanized steel strip or wire armored, electric power cables (heavy duty)11000 Volts grade with stranded aluminium conductor of size 185Sqmm 3core and all as directed by Engineer-in-Charge.

Supplying and laying un-reinforced precast concrete cable cover, class HV Type I, flat, size 300 mm x 150 mm x 40 mm. laid in trenches complete all as specified and directed.

Supplying and laying un-reinforced precast concrete cable cover, class LV Type I, flat, size 250 mm x 150 mm x 40 mm. laid in trenches complete all as specified and directed.

Material & labour for repairing of Capacitor (APFC ) panel of 100KVAR to 250KVR and carryout repairs as (i) Dismantling of Power contactor,TP,415Volts and auxiulary contactors and cleaning,Overhauling,servicing ,repairing tharouhly and replacing burnt contactors upto 63Amps including suitable capacity of copper wire single core,1100Volts grade -01Job (New contactors will be measured paid separatly) (ii)Replacing of the HRC fuses and fuse base with MCB,D'curve,TP,415Volts upto 63Amps with mounting rail including suitable capacity of copper wire single core,1100Volts grade. (New HRC fuse /MCB will be measured paid separatly) (iii)Dismantling ,testing and replacing of damaged Capacitor banks up to 25KVAR including suitable capacity of copper wire single core,1100Volts grade (New Capacitor banks will be measured paid separatly) (iv) Reapair/repalcement of control wiring of realy,contactors,aux contactors,indicating circuits,auto/manual circuits etc including all logic circuit with new copper wire single core1.5/2.5Sqmm,1100Volts grade-01Job

Supply only APFC Relay, 12Stages digital type suitable for 415V, 3phase, AC supply and all specified and directed. Make - L&T/ Syntron/Sycon

Supply only Capacitor bank 5KVAr,Mixed die electric/Heavy duty type,415Volts,50Hz AC supply in existing panel complete as specified and directed by Engineer-in-Charge. (Make :- Prabodhan / Epcos / Havells / Schnieder

All as per item No 36 above but of rating 10KVAR

All as per item No 36 above but of rating 15KVAR

All as per item No 36 above but of rating 20KVAR

All as per item No 36 above but of rating 25KVAR

Supply only Power contactors Capacitor Duty(Type MOC of L&T) 50Amps Capacitor duty with 2NO+2NC suitable for ,415Volts,50Hz AC supply in existing panel completeas specified and directed by Engineer-in-Charge Make : L&T/C&S /Schnieder

All as per item No 41 above but rating 40Amps

All as per item No 41 above but rating 32Amps

Supply & fix in repair of MCB,TP,C'Curve,63 Amps,415Volts,50Hz AC supply in existing panel with mounting rail complete as specified and directed by Engineer-in-Charge.

All as per item No 44 above but rating 40Amps

All as per item No 44above but rating 32Amps

All as per item No 44 above but rating 20Amps

Supply only Auxilaury contactors 10Amps Capacitor duty with 8NO+8NC suitable for ,415Volts,50Hz AC supply in existing panel completeas specified and directed by Engineer-in-Charge Make : L&T/C&S/Schnieder/Havells

Supply only Time delay Timer suitable forAPFC panel ,415Volts,50Hz AC supply in existing panel completeas specified and directed by Engineer-in-Charge Make : L&T/C&S/Schnieder/Havells

Supply only Current Transformers,415KV 600/5Amps,15VA burden,accuracy class 1 for metering accuracy for in existing panel and all as specified and directed. Make : AE/NSDA/MECO/C&S

Supply only Current Transformers,415KV 400/5Amps,15VA burden,accuracy class 1 for metering accuracy for in existing panel and all as specified and directed. Make : Make : AE/NSDA/MECO/C&S

Supply only Current Transformers,415KV 200/5Amps,15VA burden,accuracy class 1 for metering accuracy for in existing panel and all as specified and directed. Make : Make : AE/NSDA/MECO/C&S

Material and labour for fault finding on LT cables of any size and any length with fault detective machine by thumbing method and suitable high voltage and all as and directed by Engineer-in-Charge.

Supply and fix cable jointing STRAIGHT THROUGH JOINT for 1.1KV grade cable for straight through joint complete with Jointing material (Heat shrinkable)and accessories suitable for 3.5 core XLPE armoured, alluminum conductor cable of size 50 to 95 sq mm and all as directed by Engineer-in-Charge.

Supply and fix cable jointing STRAIGHT THROUGH JOINT for 1.1KV grade cable for straight through joint complete with Jointing material (Heat shrinkable)and accessories suitable for 3.5 core XLPE armoured, alluminum conductor cable of size 120 to 185 sq mm and all as directed by Engineer-in-Charge.

Supply and fix cable jointing STRAIGHT THROUGH JOINT for 1.1KV grade cable for straight through joint complete with Jointing material (Heat shrinkable)and accessories suitable for 3.5 core XLPE armoured, alluminum conductor cable of size 240 to 300 sq mm and all as directed by Engineer-in-Charge.

Supply and lay cable XLPE Insulated screened PVC bedded, galvanized steel strip or wire armored, electric power cables (heavy duty)1100 Volts grade with stranded aluminium conductor of size 300Sqmm 3.5 core and all as directed by Engineer-in-Charge.

Supply and lay cable XLPE Insulated screened PVC bedded, galvanized steel strip or wire armored, electric power cables (heavy duty)1100 Volts grade with stranded aluminium conductor of size 185Sqmm 3.5 core and all as directed by Engineer-in-Charge.

Supply and lay cable XLPE Insulated screened PVC bedded, galvanized steel strip or wire armored, electric power cables (heavy duty)1100 Volts grade with stranded aluminium conductor of size 150Sqmm 3.5 core and all as directed by Engineer-in-Charge.

Supply and lay cable XLPE Insulated screened PVC bedded, galvanized steel strip or wire armored, electric power cables (heavy duty)1100 Volts grade with stranded aluminium conductor of size 95Sqmm 3.5 core and all as directed by Engineer-in-Charge.

Supply and lay cable XLPE Insulated screened PVC bedded, galvanized steel strip or wire armored, electric power cables (heavy duty)1100 Volts grade with stranded aluminium conductor of size 70Sqmm 3.5 core and all as directed by Engineer-in-Charge.

Supply & fix Insulation Rubber mat at power houses and pump houses including pasting of rubber mats with adhesive resin all as specified and directed by Engineer-in-Charge.

Excavation in trenches not exceeding 1.5m wide and not exceeding 1.5m depth in hard/dense soil for laying of cable/ GI pipe and getting out complete all as specified and directed.

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

Removing surplus soil to a distance outside MD land and depositing where directed at a level not exceeding 1.5m above the starting point complete all as specified and directed.

Material and labour for dry clean river sand for cushioning of cable in trenches for cable protection including spreading, leveling and hand punning complete all as specified in SSR Part-I and as directed. Note :- Only compacted thickness of sand will be measured and paid separately.

Cutting existing road surface or hard standing ,bituminous topping 15cm but n exc 30cm girth for laying of pipes/Cables and making good distrubed surface to match with existing complete

M&L in replacement for High density poly-ethylene pipes(HDPE) of pressure 4KG/cm2 pipe,110mm dia for road crossing of cables or for cable protection of cable above ground surface all as specfied and directed

All asper item No-68 here in before but of 90 mm dia

All asper item No-68 here in before but of 75mm dia

M&L for dismantling old unservicable battery charger and supply ,install,test and comissioning of battery charger Float (tricle) cum Boost (quick) 15 amps,suitable for 30V (2 vollts 15 no's) 100 AH ,maintenance free VRLA battery bank unit ,enclosure of the charger shall be made of CRCA sheet of thickness not less than 3mm for load bearing members 2mm for door and non-load bearing members and 3mm for gland plates .Panels shall be offered withbase frame of 3mm thick CRCA sheet,painted black all round,suitable for bolting/welding/grouting on to the foundation.gaskets on door and non load inter panel gasket shall be of neoprene rubber the panel shall have hinged front and back door with concealed tytpe hinged locks and latches and with following i)The Trickle charger and quick charger shall be complete with silicon controlled rectifier units,dry type air cooled transformer,control electronics smoothing filter etc suitable for operation from 415V +10%,50Hz +5%,3-phase AC supply .the charger output shall be stablized to +1% to +10% input voltage variation and 0-100% load variation ii)Input mains failure,input,Rectifier fuse failure Filter fuse failure,DC over voltage DC under voltage,output fuse failure,Caharge over load

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