REPAIR / MAINT OF HT/LT DISTRIBUTION SYSTEM AND DEHYDRATION OF TRANSFORMER OIL INCLUDING REPAIR OF LT PANELS UG CABLE, STREET / HIGH MAST LIGHT AND GARDEN LIGHTS AND CERTAIN ALLIED WORKS AT INHS KAYANI UNDER AGE E/M NO. I OF GE (U-I) VISAKHAPATNAM

Amount

Dismantling the spring charging mechanism of the VCB, checking the entire mechanism for any worn/ crack/ bent/ block/ loose parts etc. for the following :- (i) Checking the condition of the spring charging motor along with gear box including servicing the motor & replacement of motor bearings if required. (ii) Checking/ servicing of ratchet wheel assembly, driving and charging parts.

(iii) Checking the auxiliary switch, its contacts for proper functional operation. (iv) Checking & servicing of raising/ lowering mechanism and its locking system for proper functioning. (v) Checking & servicing of shutter assembly for its automatic opening/ closing.

Note:- The items like nuts, bolts, spring washers, petroleum jelly, CTC etc required to put the breaker in serviceable condition shall be supplied by the contractor and rate shall be deemed to be included in the unit rate quoted.

M&L for de-carbonising/ cleaning of 11 KV cubicle type VCB panels consisting of bus bar and circuit chamber, metering chamber, CTs, PTs and relay chamber all as specified below :- (i) Checking the bus bar and circuit spouts, cleaning with CTC and applying bectrol red varnish to the surface of the bus bar and circuit spouts. (ii) Checking the CTs/ PTs for any arcing/ tracks, cleaning and applying one coat of varnish.

(iii) Cleaning of metering and relay chamber, checking/ replacement of burnt wires if any, tightening of all connections to arrest the loose contacts. (iv) Applying mono-plast compound at bus bar joints after tightening all joints/ connections.

M&L for Disconnecting IED of any type and Make from 11 KV HT panel, cleaning the contacts , IED configuration , Calibration & Testing of all the measuring & protection devices viz., CTs, Relays and Meters at site. Testing of all the trip functions of the relays after final current settings by simulating fault current by CT secondary injection test set , checking of current transformer , rectification of defects in control wiring for proper tripping of CB during actual system fault conduction through relay & Tripping coil. Adjustment / setting to plug and time multiplier settings of IED to achieve the discrimination in tripping , tune / synchronies upstream breaker relay settings-installation of relay, testing & commissioning etc complete all as specified and as directed.

M&L for Collecting necessary required data & peak load details from IED of any type and Make from 11 KV HT panel , Transformer full load details during peak hours. Relay Setting Calculations & Co-Ordination Study. Unit Protection Setting of Transformers. Feeder wise settings has to be furnished & Report with Firm Recommendations to be submitted Down Stream Power distribution (Complete 11 KV system) overall co-ordinations of time need to be achieved. Adjustment / setting to plug and time multiplier settings of IED complete in all as specified and as directed.

Supply of CT's epoxy cast resin , with primary Current 100A - 50A / 1 A - 1A , Secondary current 1A , Dual core , Dual Ratio. Protection core -Class 5P10 & Metering core - Class 0.5 , 2.5 VA, Suitable for Siemens Make RMU all as directed.

Dismantling of existing CT's , Installation of supplied CT's in Siemens Make RMU & Commissioning by checking of current transformer by primary injection up to 100A complete all as directed.

Supply only following spares :

LED Indication Lamps

LED type push button actuators

Shunt trip coil 110 V DC / 220 V DC

Breaker Control Switch

Control Circuit fuses 2A to 63A

HRC fuses for PT primary side

Spring Charging motor with gear assembly

Ammeter 240 deg 144 sq. mm

Voltmeter 240 deg 144 sq. mm

Multi function meter , Digital type

Panel Space Heater

Digital Temperature Indicator along with thermostat.

Supply and lay Control Wiring up to Control Chamber with 1 Core , 2.5Sq mm Copper cable with proper ferules & appropriate Lugs complete all as specified and directed.

Supply & replacement, calibrating, testing, commissioning of Micro processor feeder protection relay, range - 0.01In – 8In, protection setting- 2 set, protecting circuit correct – 1 Amps & 5 Amps sets, records history- 5Nos, min 6 Analog out put, with protections viz. feeder protection 50/ 51N (3 Phase current), 50/ 51N (Earth Over current), 67 P (3 Phase directional Over current), 6/N (Earth fault directional over current), 51V (Voltage controlled over current) 37 (3 phase under current), 46(Negative phase sequence over current), 59N (Residual over voltage), 49 (Thermal over load), 79(Auto reclose), 50BF( Circuit breaker failure detection), Cold Load pickup, Inrush blocking, Relay will be on MODBUS protocol with LCD display, trip, circuit healthy, alarm, other assignable indication,Auxlary suppy : 110V DC complete all as specified and directed.

Supply and repalce in repair of the following items

Breaker bushing contact

Vacuum interrupter assembly

Bus bar Spout

Circuit spout

PT plug contact

Closing / Tripping coil of 11KV VCBs type VE 12,30 Volts

Supply & replace 11 KV potential transformer TYPE VIR= 11000/RT3/110/RT3/110/RT3V, VA=100/50 VF; 1.2CONT&1.9 for 8 Hours, voltage transformer single phase type HSV/IL, 12/28/75 KV all as specified

Supply and laying or fixing or passing through pipe or in cable ducts, 11000 volts grade XLPE(FRLS) insulated Heavy duty (earthed), screened, PVC bedded, galvanised steel strip or wire armoured, electric power cables (heavy duty) with aluminium conductor 185 sqmm 3 core size including dismantling old one complete all as specified and directed by Engineer-in-Charge. MAKE: Havells / Gloster / KEI Industries Ltd / Polycab / Asian Cables / Finolex

Supply and laying or fixing or passing through pipe or in cable ducts, 11000 volts grade XLPE(FRLS) insulated Heavy duty (earthed), screened, PVC bedded, galvanised steel strip or wire armoured, electric power cables (heavy duty) with aluminium conductor 240 sq mm 3 core size including dismantling old one complete all as specified and directed by Engineer-in-Charge. MAKE: Havells / Gloster / KEI Industries Ltd / Polycab / Asian Cables / Finolex

Supply and fix cable jointing kit for 11 KV grade cable for outdoor terimination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured Al conducter cable of size 185 sq mm. Make: Birla 3M/ Raychem/ Denson

Supply and fix cable jointing kit for 11 KV grade cable for indoor terimination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured Al conducter cable of size 185 sq mm. Make: Birla 3M/ Raychem/ Denson

Supply and fix of Cable jointing kit for 11 KV (Earthed) grade cable for straight through heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 sqmm to 240 sqmm. Note for sl item No. 26.00 to 28.00 : Excavation , removal, Returning filling etc shall be measured and paid separatly.

M&L for disconnecting carefully electrical connection from both HT/ LT (primary & secondary) sides of the transformer, keeping them at safe side the transformer indoor/ outdoor type of capacity from 63 KVA to 1000 KVA , 11 KV/ 0.433 KV, step down any make for carrying out refixing after completion of minor repairs like maintenance / replacement of HT/LT bush, metal rods, lugs, replacement of rusted nutbolts etc incl cheking the continuty of HT/LT windings , top cover opening, prevent the all oil leakages, provn of new insulated gaskets / cork sheet for HT/LT supply etc complete all as specefied and directed. Note: Porcelain bushings, gun metal rods, cable end joint kit, transformer oil etc shall be measured and paid separatly.

Decarbunizing / cleaning complete LT 415 Volts 3 phase panel / bus bar chamber with electrical connections, complete bus bar from the bus bar chamber, cleaning with CTC and ensure proper decarburizing, refixing the same after applying Backtol Red solution to the bus bar insulator & checking all the connections, tightening the nuts, bolts & thimbles of in-coming/out-going system complete incl replacement of defective rusted bolts & nuts all as specified and directed.

Supply and replace MCCB 4 pole, 415 V, adjustable type 400 Amps with breaking capacity 35 KA including necessary modification in the panel with proper lugs complete all as specified and as directed. Make: L&T/Seimens/Schneider/Legrand/indoasian

Supply and replace MCCB 3 pole, 415 V, adjustable type 250 Amps with breaking capacity 25 KA including necessary modification in the panel with proper lugs complete all as specified and as directed. Make: L&T/Seimens/Schneider/Legrand/indoasian

Supply and replace MCCB 3 pole, 415 V, adjustable type 200 Amps with breaking capacity 25 KA including necessary modification in the panel with proper lugs complete all as specified and as directed. Make: L&T/Seimens/Schneider/Legrand/indoasian

Supply and replace MCCB 3 pole, 415 V, fixed type upto 63 to 100 Amps with breaking capacity 25 KA including necessary modification in the panel with proper lugs complete all as specified and as directed. Make: L&T/Seimens/Schneider/Legrand/indoasian

M&L for removing the cable connections of four pole/ three pole Air circuit breaker of capacity 400 to 1600 Amps ,415 V 50 HZ of make L&T /C&S/GE/ABB , strip opening the Air circuit breaker, inspecting the parts for serviceability / overhauling complete and carrying out the following repairs/maintenance :- a) Cleaning the insulation parts including bushings with CTC solution. b) Checking the alignment and condition of movable and stationary contacts and adjust them all as per manufacturer's instructional manual. c) Check the bolts, nuts, washers, cotter pins and all terminal connections are in place and tights. Replace the worn-out parts. d) Check arc chutes for damage and replace damaged parts.

e) Clean and lubricate the operating mechanism with a light machine oil (SAE-20 or 30) for pins and bearings and with a non-hardening grease for the wearing surfaces . Adjust breaker operating mechanism all as per manufacturer's instructional manual . Replace if there is excessive wear and tear. f) Checking / inspecting shunt trip coil for serviceability and replacing the same if required. g) Replacing the badly worn or burned contacts. Checking control device free for operation. h) Check after servicing the circuit breaker to verify the contacts move to the fully opened and fully closed positions, that there is an absence of friction and that the electrical operation is functional. Note : (i) The rate quoted deemed to be inclusive of T&P and minor spares like lubricants, nuts/bolts/washers/ pins etc. (ii) Major spares like contacts, shunt trip coil , relays, CTs etc shall be measured & paid separately.

S&F only cluster contact suitable for air circuit breakers of rating 400 to 1600 Amps rated all as specified and directed. Make: L&T/C&S/ GE/ABB/Siemens/Schneider

S&F only trip coil suitable for air circuit breakers of rating 400 to 1600 Amps rated all as specified and directed. Make: L&T/C&S/ GE/ABB/Siemens/Schneider

S&F only auxiliary contact block suitable for air circuit breakers of rating 400 to 1600 Amps rated all as specified and directed. Make: L&T/C&S/ GE/ABB/Siemens/Schneider

S&F only arc chutes (for 415 V) suitable for air circuit breakers of rating 400 to 1600 Amps rated all as specified and directed. Make: L&T/C&S/ GE/ABB/Siemens/Schneider

S&F only rating plug suitable for air circuit breakers of rating 400 to 1600 Amps rated all as specified and directed. Make: L&T/C&S/ GE/ABB/Siemens/Schneider

S&F only shunt release (110 /220 V DC or 240 V/415 V AC) suitable for air circuit breakers of rating 400 to 1600 Amps rated all as specified and directed. Make: L&T/C&S/ GE/ABB

S&F only arcing contacts (fixed/ moving) suitable for air circuit breakers of rating 400 to 1600 Amps rated all as specified and directed. Make: L&T/C&S/ GE/ ABB

Supply & Fixed in repairs street light luminaire integral type high power LED light fitting of 90 watts output with minimum 60 lumens per watt in aluminium die cast housing with IP 66 protection complete with all accessories including driver and electronic surge protection device of 5 KV complete all as specified and as directed. (MAKE : Havells / Bajaj / Philips / Wipro / GE / CG).

Taking out the Loop in loop junction box , disconnet the cable connections and refixing the loop in loop box with cable connections with provision of new set of aluminium Lugs / thimbles of size 10 sqmm/ 16sqmm /25sqmm / 35 sqmm for 3.5 / 4.0 core existing LT cables of any type including provision of necessary tape insulation, clamps for fixing of cables ,fittings and fixtures, nut bolts, clamps etc complete all as specefied and directed.

Supply and fix Flood light die cast aluminium of 200 W, 230 volts with IP 66 including inbuilt drive with all fixing arrangements with nuts & bolts, clamps, iron chanels on poles etc complete all as specified and directed by Engineer-in-Charge including taking out old one. (MAKE : Havells / Bajaj / Philips / Wipro / GE / CG).

Preparation of external surfaces of LT panels indoor/outdoor type for painting by scraping down old dusted paint by steel brush broomming rubbing and cleaning applying two coats of synthetic enamel paint as approved and marking feeder details as directed by Engineer-in-Charge.

Taking down defective street light fitting of any size /any type/ any capacity from height of pole/ walls/ high rise of any location of poles of 09 Mtr / 11 mtr height from ground level for reapir work and fixing back after repair work is carried out including checking, inspecting, testing and commissioning complete all as directed by Engr-in-Charge. Note : (a) Spares like ballast, lamp, starter, capacitor , igniter, holders, lamp holder, etc. shall be measured and paid separetely as supply only. (b) Necessary required T&P Viz. Mobile ladder etc shall be arranged by the contractor. (c) The rate quoted deemed to be inclusive for minor repair parts like nuts, bolts,cirle clips, clamps etc if required at site.

Supply only the following spares of street light fittings: (Make : Phillips/ crompton Greaves / Havells / GE )

LED driver of 45/60 watt all as direted by Engr-in charge

LED driver of 90/120 watt all as direted by Engr-in charge

Supply and fixing Street lights LED 90 W with drive, 230 volts, Pressure die cast aluminium housing luminaires with high power LED source (Maintaing minmum system lumen-6000), with IP protection 66 fixing on 09 mtr/11Mtr height poles and all necessary fixing arrangments and fittings etc including taking out old one of any type complete all as specefied and directed. (MAKE : Havells / Bajaj / Philips / Wipro / GE / CG).

Supply and fixing Flood light die cast aluminium of 150 W, 230 volts with IP 66 including drive with all fixing arrangements with nuts & bolts, clamps, iron chanels on poles etc complete all as specified and directed by Engineer-in-Charge including taking out old oneof any type complete all as specefied and directed. (MAKE : Havells / Bajaj / Philips / Wipro / GE / CG)

Supplying,fixing and testing of Gate/ Post top LED light fitting 70W with die cast aluminium body with drive, 230 volts and with spun aluminium landscape luminaire and IP-65 protection with high power LED as source including all necessary fixing arrangments etc including taking out old one of any type complete all as specefied and directed. (MAKE : Havells / Bajaj / Philips / Wipro / GE / CG)

M&L for preperation of old painted surface, cleaninig of oils, lubricants, grease etc complete of any type of 11.0 mtr long poles as per IS above PCC coping and applying Two coats of aluminium paint including brackets, clamps and terminal boxes including 5 cm wide two nos red colour flourcent strip pasting on pole as directed and writing pole Nos complete all as specefied and directed.

Excavating in trenches n. exc. 1.5m wide and n. exc. 1.5m in depth for foundation, trenches for laying poles/ cables/ pipe line etc. and getting out in soft/loose soil complete all as specified and directed.

Removing excavated materials to a distance n. exc. 50 m and depositing where directed at a level n. exc 1.50 m above the starting point complete all as specified and directed.

Returning, filling in including spreading leveling watering and well ramming in layers not exc 25 cm in any type of soil complete all as specified and directed.

Supply and spreading clean dry sand for cable cushioning in trenches complete all as specified and as directed. (Note: Punned thickness only shall be measured)

Supply and laying sub class 'B' bricks of old size (23x11x7cm) laid along alignment of cable as protection to cable in trenches complete all as specified and directed by Engineer-in-Charge

Supplying, laying, testing and commissioning LT XLPE insulated , armoured heavy duty electric cable of 4 core 16 sqmm, 1100 volts grade with stranded aluminium conductor laid in trenches / passing through pipe / duct/ road crossing /fixed on poles / walls Complete all as specified and directed. MAKE: Havells / Gloster / KEI Industries Ltd / Polycab / Asian Cables / Finolex [Note: The rate quoted shall inclusive of termination at ends with suitable aluminium lugs where required]

All as per item No.46 here-in- before but of 3.5 core 35 Sqmm.

All as per item No.46 here-in- before but of 3.5 core 50 Sqmm.

All as per item No.46 here-in- before but of 3.5 core 95 Sqmm.

All as per item No.46 here-in- before but of 3.5 core 120 Sqmm.

All as per item No.46 here-in- before but of 185 sqmm 3.5 core.

All as per item No.46 here-in- before but of 3.5 core 240 Sqmm.

All as per item No.46 here-in- before but of 3.5 core 300 Sqmm.

Supply and fix hot press moulded junction boxes with hinged door, fitted with 4 P, 50 Amps rated connector and neutral link mounted in the box,including necessary fixing arangement to the steel tubular pole/over walls including taking out old one complete all as specified and directed. Make : Sintex /Hansel Controls .

Supply and replacement of multi core PVC insulated stranded copper conductor of size 1.5 sqmm 3 core cable to be connected with street light fittings to loop-in and out boxes with its end point terminal connection all as specified and directed. Make : Polycab /Finolex / Havells

Supplying , fixing and testing of timer switch 65 A 3 pole panel complete for street light controls analog timer switch with connected items fixing on pole/wall/panels including PCC with all fixing arrangements complete including taking out old one etc all as directed. Make: Havells/ Indo Asian / L&T / Siemens /Hager / Schneider.

Supply and replacement of multi core PVC insulated stranded copper conductor of size 25 sqmm 4 core cable to be connected with street light fittings to loop-in and out boxes with its end point terminal connection all as directed. Make : Havells /polycab/ Finolex

Material and labour for maintenance to 320 KVA Gen Set for 'B' check after 06 months or 250 hrs running, whichever is earlier as per the recommendations of manufacturer including renewing of necessary filters, Engine oil etc, complete all as per manufacturers instructional manual and all as directed by Engg-in-charge. Note : Engine oil shall be suplied carrying out 'B' check and the rate quoted deemed to be included for the same.

All as per item No. 58 above but for 250 KVA DG Set

All as per item No. 58 above but for 200 KVA DG Set

All as per item No. 58 above but for 140 KVA DG Set

All as per item No. 58 above but for 100 KVA DG Set

All as per item No. 58 above but for 62.5 KVA DG Set

M & L for repairing & servicing of self starter including replacement of commutator, carbon brush set with holder, king pin holder, armature, check nut body scrws, clutch plate assembly and solenoide etc., for DG set capacity 320 /400KVA DG Set complete all as per manufacturer instructions and as directrd.

All as per item No. 64 here in above but for DG set of 250/200 KVA capacity

All as per item No. 64 here in above but for DG set of 63/100/140 KVA capacity

M & L repair and servicing of charging alternator including replacement of diode set with holders, bushes, bearing, varnishing, reassembling etc for 320/400 KVA DG Set complete all as per manufacturer instructions and as directrd.

All as per item No. 67 here in above but for DG set of 200/250 KVA capacity

All as per item No. 67 here in above but for DG set of 63/100/140 KVA capacity

Disconnecing / Removing existing un serviceable Battery of 12 V 180 AH from the DG set and supply, fix maintenance free battery of 12 V 180 AH capacity with minimum 2 years warranty including replacement of battery terminal clamp and testing and commissioning all as directed. [ Make: Exide / Amco / Amron]

Disconnecing/ Removing existing un serviceable Battery 12 V 90 AH from the DG set and supply, fix maintenance free battery of 12 V 90 AH capacity with minimum 2 years warranty including replacement of battery terminal clamp and testing and commissioning all as directed. [ [Make: Exide / Amco / Amron]

M/L for topping of Engine oil of grade 20 W 40 in DG sets all as directed and specified by Engr-In-Charge. Make : SERVO / VEEDOL

Material and labour for replacement of air cleaner and Deisel filter / to 320 KVA Gen Set matching with existing and as per the recommendations of manufacturer and all as directed by Engg-in-charge.

All as per item No. 73 above but for 250 KVA DG Set

All as per item No. 73 above but for 200 KVA DG Set

All as per item No. 73 above but for 140 KVA DG Set

All as per item No. 73 above but for 100 KVA DG Set

All as per item No. 73 above but for 62.5 KVA DG Set

Supply, calibrating, installing, setting, testing, commissioning of AVR panel for 62.5 - 320 KVA DG set, 415V, 3 phase, 4 wire system, Digital type, Voltage regulation: 10% of rated voltage,frequancy setting: 50/60 cycle,stebility,doom settings, exitation voltage,currect to be matched with OEM instructions complete all as directed.

Supply, replacing,testing & calibrating and commissitoning of engine oil pressure gauge,dial type,Analog type,range 0 to 10 kg/cm²,resolution 0.25kg/cm²,control wiring complete all as directed

Supply, replacing,testing & calibrating and commissitoning of coolant temperature gauge,dial type,Analog type,range 0 to 150 C°,resolution 5C°,control wiring complete all as directed

Supply, replacing,testing & calibrating and commissitoning of ammeter,dial type,Analog type,range -150 - +150 Amps,resolution 10Amps,control wiring complete all as directed

Supply, replacing, testing & calibrating and commissitoning of hour run meter cum tacho meter,dial type, Analog type, range 0 - 3600 RPM, reselution 50 RPM, control spring cable including inner and outer complete all as directed

M&L for De-scaling of radiator by dismantling the upper & lower tank and cleaning the core pipes with cleaning chemicals, components and arrest the leaking core by brazing/ dummy with lead including cleaning of upper and lower tanks and replacing the upper and lower gaskets and required nuts, bolts, refixing the same including testing and painting complete all as specified and directed for the following capacities

63 to 320 KVA

Removing old earth and M & L for earthing complete with GI earth plate electrode of size 600mm x600mmx 6.0 mm thick burried directly under ground vertically to a depth not less than 2.25 meter below ground level with top edge of the plate at a depth not less than 1.5 m below ground level connected to and including GI strip 32 x 6mm, by means of bolts, nuts, check nuts and washeres made out of GI including protection pipe GI light grade 40 mm size and watering pipe 20 mm dia GI medium grade all as shown on plate No 3 of SSR Part-I, connecting to earthing test point, including necessary earth work in any type of soil, PCC earth chamber made in PCC 1:3:6 type C1 (using 20mm graded aggregate), common salt, charcoal, CI funnel, earth pit cover in RCC 1:2:4 type B1 (using 20mm graded aggregates), with 8mm CTD bars @ 100mm c/c in both ways, including necessary form work complete including necessry test on completion all as specified and as directed.

M&L for strip opening AMF panel of 63 KVA TO 140 KVA DG set, checking, inspecting, calibrating AMF panel ,replacing the burnt copper wiring with suitable flexible copper wire, inspecting the contactor coils & replacing the defective coils, cleaning the fixed/moving contacts with CTS complete including setting of AVR of Alternator complete incl testing & commissioning complete.

M&L for strip opening AMF panel of 200 KVA TO 400 KVA DG set checking, inspecting, calibrating AMF panel , replacing the burnt copper wiring with suitable flexible copper wire , inspecting the contactor coils & replacing the defective coils, cleaning the fixed / moving contacts with CTS complete including setting of AVR of Alternator complete incl testing & commissioning complete.

Supply and fixing ON LOAD changerover front operated 4pole 630 AMPS all as directed. Make L&T/Legrand / Havells

Supply and fixing OFF LOAD changerover front operated 4pole 630 AMPS with enclouser all as directed. Make L&T/Legrand / Havells

Supply and Replace Off Load Changeover including sheet metal encloser with side handle 400 Amps 4 pole 240 V, all as directed. Make: L&T/Legrand / Havells

Supply and Replace ON LOAD Changeover front operated 400 Amps 4 pole 240 V, all as directed. Make: L&T/Legrand / Havells

M&L Earthing Electrode 300 mm length copper coated, 100 microns thickness as per UL standard approved and testing by CPRI, pipe in pipe type inner pipe dia 41.9(min)mm, outer dia 76/80(min)mm annular space filled with high conductivity and anti corrosive compound with connection terminal. M&L infill compound (Chemical) 50Kgs ( 2 Bag each 25 Kgs) Elecrodite/ Humedites constituting natural element not water dissoble reduce soil resistivity highly hygroscopic and swells high conuctivity and anti corrosive retains moisture for a long time . M&L Earth work Vertical excavation in normal soil upto a depth of 3000mm the diameter of the bore hole being minimum 250 mm . installation filling the bottom 4" of the bore with infill compound ( Chemical) vertically placing the electrode in the centre of the pit ,fill the cavity around the electrode with the chemical ensuring there are no air gaps in the chemical filled cavity region make a thick paste by pouring water into the earth pit and mixing the mixture with a pole. complete as directed. including PCC earth Pit and RCC Pit cover complete

M&L earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit / pipe or fixed to poles or any other indicated situation for loop earthing etc as 32x6mm copper strip complete as directed

Supply and topping up of transformer oil with di-electric strength not less than 50 KV in to the conservator tank/ body tank of the transformer/ OCB/ FRMUs etc at various locations complete all as directed by the Engineer-in-Charge. [Make: Poweroil/ Transol/ Sabitha Chemicals]

Filtration of transformer oil of transformers/ FRMUs installed at various locations to achieve di-electric strength not less than 50 KV at 2.5mm gap as per relevant IS with portable filtration plant, testing of the oil for the di-electric strength before filtration and after filtration complete all as directed by the Engineer-in-Charge.

S&F DG set AMF Relay of DG set capacity 62.5 to 400 KVA matching with existing and including taking out old one complete all as directed by the Engineer-in-Charge.

M/s NATIONAL ENGINEERING CONSTRUCTIONS CO

jyothi constructions

THE VENKATESWARA SUPPLIERS

SAMPATH ENTERPRISES