REPAIR/REPLACEMENT AND MAINTENANCE OF DISTRIBUTION TRANSFORMER AND HT SWITCH GEARS WITH CONNECTED ITEMS AT COD POWERE HOUSE, LOCAL SUB STN, MAP KIRBY PLACE, ESD-I II, 226 SUPPLY DEPOT, SHAMSHANGHAT SUB STN, FOL DEPOT, SUBRAMANIAM LINE, 1181 PNR COY

Amount

M&L for replacement of complete control wiring (AC/DC) in existing HT 11 KV VCB Panel of capacity 630 Amps installed at substation using 2.5 Sqmm FRLS copper wire and associated accessories necessary for wiring and integration of control panel with breaker, relays, meters, power pack, T&C switch, annunciator etc and including the following:- (i) AC/DC copeer wiring, lugs, terminals, TB's, TB markers, strips, etc which are necessary for integration of new items with existing panelThe contractor shall ensure integrity of crtical protection scheme off the panel and shall be demonstrated via functional tests at site including tacking out control wiring complete all as specified and directed.

Supplying, installation, commissioning and testing in replacement of 11 KV Current Transformer (CT`s), indoor type, resin cast epoxy type, of 25.0 KA/Sec having ratio 300/150/5-5 Amps having Core1: Class 5P10, 10VA for protection , Core2: Class 0.5, 10VA for metering including associated wiring complete all as specified and directed

All as per item No 2 here-in-before but having ratio 200/100/5-5 complete all as specified and directed

All as per item No 2 here-in-before but having ratio 150/75/5-5 complete all as specified and directed

All as per item No 2 here-in-before but having ratio 100/50/5-5 complete all as specified and directed

All as per item No 2 here-in-before but having ratio 50/25/5-5 complete all as specified and directed

Supplying and fixing in replacement Potential Transformers, Draw-out type in existing HV panel for easy maintenance, 11kV/rt3:110V/rt3, 50VA, Cl.0.5 with associated gun-type HRC fuses and MCBs for HT/LT isolation

Material and labour for servicing /testing of breaker/control panel including CT, PT and relays in control panel of VCB of capacity 800/630/400 Amps and rating 11 KV complete as details mentioned as under:- (a) Details of servicing of breaker :- (i) Adjustment of mechanism if required. (ii) Clean the circuit breaker to remove dust and dirt. The envelope of the vacuum interrupter and insulating materials shall be wiped with a clean cloth. (iii) Apply a small amount of oil to rotary sections, sliding surfaces, pins, coupling section, etc.use grease for the operating shaft and bearings, and machine oil for other parts. (iv) Check for rust and wear. (v) Check Spring Tension and pitting of the Cluster Contacts. (vi) Visual check for rust and deformation. (vii) Check for loosened bolts and nuts, broken spring washers and snap pins etc. (viii) Check for loosened connections, rust, damaged lead wires. (ix) Check whether the contacts are damaged by arcing. (x) Checking of control circuit & tighten the connections if any. (xi) Check close & trip coil. (xii) Checking of Jaw Contacts Conditions and repair/adjust. (xiii) Replace the jaw contacts,If required. (xiv) Improvement of resistance of epoxy insulator and epoxy body by applying post heated varnish. (xv) Replacement of Dashpot/shock absorbers .(xvi) Replacement of carbon brush of spring charging motor (xvii) Flash cleaning of complete bus bar with CRC

(b) The following test shall be carried out:- (i) Primary Injection Test of CT / PT (ii) Closing & Opening Timing Test for all three poles. (iii) IR Test with megger in open and closed condition. (iv) Contact resistance test for all three poles (v) Closing coil resistance (vi) Tripping coil resistance. (c) Testing of following relays of control panel with Secondary Injection Kit ,checking and programming of relay :- (i) Over current and earth fault relay (d) Testing of followig Aux relay (i) DC Supply supervision relay. (ii) Master trip relay

Supply installation & commissioning in replacement of 24V/40A Float Cum Boost Battery Charger unit including battery bank comprising 02 Nos of 12 Volts-100 AH sealed maintenance free battery. The CCCV battery charger consisting of copper wound, air cooled transformer, 01 Set single phase full wave bridge rectifier consisting of diodes and SCRs, liberally rated mounted on heat sink and complete with resistor/condenser network for surge supperssion . During auto float mode automatic changeover shall take place from float mode to boost mode and vice versa, 01 Set of solid state constant potential controller to stabilize the DC output voltage of the float cum boost charger, 01 No electronic controller , DC digital ammeter , DC digital voltmeter, Potentiometer , DC, MCB for reverse battery protection . The charger should have alarm annunciation with visual and audible alarm with manual reset facility for fuse fail alarm. Float cum boost battery charger and DC distribution board shall be housed in powder coated sheet steel cubicle with panels of 1.6mm thickness , louvers for ventilation , gland plate will be provided for cable entry from bottom . The battery charger shall be divided into two compartments. The upper compartment shall house the battery charger & DCDB with all necessary controls. The lower compartment shall be suitable for housing the batteries. Tech specification shall be as under:-

(a) Input working voltage-180 -270 Volts (b) Nominal Input Voltage - 230 V , AC , 50 Hz,1 (c) On load input power factor - > 0.8 (d) On load unit watt efficiencies-> 80% (e) No load losses of complete charge-< 10% (f) Ripple contents on the load (RMS)= 1% to 5% (g) Over load - 110% for 30 minutes and will give visual indication for over load condition. (h) Boost charging - 2.4 V/Cell . (j) Float charging -2.15 V/Cell (k) Float cum boost charging-Automatically changes from one state to another state as per battery condition and will give the visual indication for either float or boost based on charging mode. (l) Reverse polarity -No damage will caused . A visual indication for reverse polarity will appear with an audio alarm. (m) Short circuit-MCB protecton provided.

Supplying, installation, commissioning and testing in replacement of PT unit three phase, three limbs, upto 11 KV draw-out type, resin cast dry type, single ratio having primary voltage 11 KV & secondary voltage 110 volts, 50 VA class-1 including necessary bus bar connections & wiring for metering complete all as specified and directed .

S&F in replacement of LED indication lamp for breaker ON/OFF/TRIP/Breaker Spring Charged/R-Y-B etc for 11 KV control panel including associated wiring, if reqd, complete all as specified and directed.

Supply and installation in replacement Anti-condensation space-heater withThermostatic control in cable and circuit breaker compartments of HT switchgears complete all as specified and directed.

S&F in replacement of vacuum interrupter suitable for 630/800 amps, 11 KV HT VCB complete all as specified and directed

S&F in replacement of isolating contact assembly suitable for 630/800 amps, 11 KV HT VCB complete all as specified and directed

S&F in replacement of fixed contact block complete suitable for 630/800 amps, 11 KV HT VCB complete all as specified and directed

S&F in replacement of moving contact block complete suitable for 630/800 amps, 11 KV HT VCB complete all as specified and directed

S&F in replacement of motor & gear assembly 230V AC suitable for 630/800 amps, 11 KV HT VCB including testing & puting on load complete all as specified & directed.

S&F in replacement of spring bearing gear suitable for 630/800 amps, 11 KV HT VCB complete all as specified and directed

S&F in replacement of closing coil assembly 24/110 volts DC suitable for 630/800amps, 11 KV HT VCB complete all as specified and directed

S&F in replacement of tripping coil assembly 24/110 volts DC suitable for 630/800 amps, 11 KV HT VCB complete all as specified and directed

Supply and fix in replacement close/trip coil 24V/110V DC for 11 KV HT VCB of capacity 630/800 Amps capacity all as specified and directed.

S&F in replacement of panel door lock suitable for 630/800 amps, 11 KV HT VCB complete all as specified and directed

Supplying & Fixing in replacement auxillary switch (7 No + 7NC) suitable for 630/800 amps, 11 KV HT VCB complete all as specified and directed

Supply and fix in replacement T&C Switch for Breaker ON/OFF purpose in HT 11 KV VCB panel including associated wiring, if reqd, for proper functioning of switch complete all as specified and directed.

Supplying & Fixing in replacement support road with screws suitable for 630/800 amps, 11 KV HT VCB complete all as specified and directed

Supplying & Fixing in replacement support insulator suitable for 630/800 amps, 11 KV HT VCB complete all as specified and directed

Supplying & Fixing in replacement upper connector suitable for 630/800 amps, 11 KV HT VCB complete all as specified and directed

Supplying & Fixing in replacement lower connector suitable for 630/800 amps, 11 KV HT VCB complete all as specified and directed

Supply & fix in replacement only set of 6 Nos fixed arcing contacts suitable for 630/800 amps, 11 KV HT VCB complete all as specified and directed

S&F in replacement Caution plate “CAUTION MEN AT WORK of size 40cmx15cm made out of white acrylic sheet with Red coloured glow tape and size of writing letter is not less than 5 cm each.

S&F in replacement of HRC fuse of capacity 20 Amps for VCB complete all as specified and directed

S&F in replacement MCB 20 to 32 Amps DP complete all as specified and directed

S&F in replacement of Digital Volt meter Secondary voltage 110 V for 11 KV VCB Control Panel complete all as specified and directed.

Material and labour in replacement Retro Reflective installation sign boards of size 5 feet x 4 feet fabricated out of 16 gauge MS sheet frame duly welded/riveted with MS square pipe of size 25mm x25 mm , 3mm thick at height 2.00 meter above ground level on stainless steel heavy duty pipe of size 50mm bore embaded 60 CM in PCC 1:2:4 type B 1 block of size 45cmx45cmx60cm including necessary excavation and earth work .The MS portion of the board shall be painted with 2 coat of stove enameled paint and the front & back of the frame shall be overall sheathed with blue colour base painter adhesive tape. The wiriting matter will be in English language on both sides with reflective adhesive painter tapes of letter size not less than50mm as directed by Engineer -in-charge.

M&L in replacement Earthing complete with galvanized steel earth plate electrode of size 60cmx60cmx6 mm thick, buried directly in ground (earth pit not less than 3.5 m below normal ground level) with top edge of earth plate not less than 2.5m below normal ground level, connected to galvanized strip 32X 6 mm by means of bolts, nuts, check nuts and washers of galvanised iron or steel as shown in electrical plate No 3 of SSR Part I, connected to earth test point and the equipment on the other nuts and washers of galvanised iron side complete all as specified, including testing and commissioning complete all as directed. Note : (a) The unit rates quoted against this item shall be deemed to include the cost of excavation and earth work in soft/loose soil, common salt & charcoal dust in alternate layers, PCC 1:3:6 type C2 as in pit, precast RCC 1:2:4 type B-1 with necessary reinforcement 6mm dia both ways as in cover & frame for pit, funnel, watering pipe 20 mm bore GI pipe light grade, protection pipe 40 mm bore GI pipe medium grade etc. (b) The quoted rates shall also deemed to include the cost of earth test point and earth strip/GI lead wire and protection pipe upto 7.5 meter beyond the earth plates electrode.

M&L in replacement 32x6mm galvanised iron strip for earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in pipe or any other indicated situation for loop earthing etc complete all as specified and directed.

S&F and installation battery 12 volts,100 AH, dry type in replacement of old unserviceable battery in battery charger with suitable size of new copper battery terminal and lugs and initialy charging, commissioning and testing complete.

Supply, installation and testing of Numerical Relay in replacement draw out type in HT 11 KV VCB Panel comprising of new and modern numerical scheme for detecting, indicating and tripping the breaker on faults over-current and earth-fault in any of the three phases, Trip circuit supervision relay, 5% pick up for OC and 5% for EF. The relay shall also have the following features as minimum; (i) Programmable rated current 1A & 5A, (ii) Last 8 fault record & 200 event record with time stamping, (iii) 4 analog input, 8 DI & 8 DO, (iv) Communicable on IEC61850 protocol, (v) Disturbance recording upto 300 cycles, (vi) Self supervision function.

The relay shall be fully integrated with the feeder, internally capturing feeder statuses if available including Breaker On, Off, Spring Chrgd, Test, Service, AC-Fail, DC supervision relay, Trip circuit healthy relay, inter panel tripping, Master trip relay, local remote and display the same locally on a built-in LCD screen and suitably labeled status LEDs. Relay shall have facility to locally Trip/Close the breaker as a backup to TNC switch provided separately on the panel. The relay shall be fixed on new 2mm CRCA sheet of matching existing VCB panel color and suitable size covering all blank space formed by removing old mechanical type IDMT relay complete including associated wiring and integration with existing HT VCB panel complete all as specified and directed.

Supply, installation and testing of Numerical Relay in replacement draw out type in HT 11 KV VCB Panel comprising of new and modern numerical scheme for detecting, indicating and tripping the breaker on faults over-current and earth-fault in any of the three phases, Trip circuit supervision relay, 5% pick up for OC and 5% for EF. The relay shall also have the following features as minimum; (i) Programmable rated current 1A & 5A, (ii) Last 8 fault record & 200 event record with time stamping, (iii) 4 analog CT & 3 PT input, 8 DI & 8 DO, (iv) Communicable on IEC61850 protocol, (v) Disturbance recording upto 300 cycles, (vi) Self supervision function. The relay shall be fully integrated with the feeder, internally capturing feeder statuses if available including Breaker On, Off, Spring Chrgd, Test, Service, AC-Fail, Trip circuit healthy relay, PT supervision, inter panel tripping, Master trip relay, local remote and display the same locally on a built-in LCD screen and suitably labeled status LEDs. Relay shall have facility to locally Trip/Close the breaker as a backup to TNC switch provided separately on the panel. The relay shall be fixed on new 2mm CRCA sheet of matching existing VCB panel color and suitable size covering all blank space formed by removing old mechanical type IDMT relay complete including associated wiring and integration with existing HT VCB panel complete all as specified and directed.

S&F MCB single pole of capacity 06 Amps, 10 KA, C curve with provision of suitable channels in replacement of existing fuses.

Disconnecting electric outdoor/indoor transformer 11 KV capacity upto 1500 KVA from HT/LT terminals and lowering down/getting out from 2/4 pole structure/plinth or from inside sub station for major/Minor repair complete all as specified and directed .

Transportation of unserviceable transformer of upto 1500 KVA capacity to workshop and return back for installation it on original position/location after repairing from workshop Note : (Rate is deemed to be inclusive of transportation, T&P and man power)complete all as specified and directed .

Materail and Labour for draining out complete transformer oil from transformer upto 1500 KVA capacity at Workshop for major repair and storing the oil in suitable container (container to be provided by the contractor to keep aside for re-use (after repair) and lifting of core assembly by opening of top cover and other items for inspection/examination by Rep of GE Office. (transportation charges will be paid separaterly against item No. 43)

M&L for shifting of serviceable transformer upto 1500 KVA from MES store Yard/Sub Stn(indoor/outdoor) for installation in place of unserviceable transformer and back after replacing with repaired transformer

Material and labour factory opening of top cover by unscrewing nut, bolts & washers etc and taking out core assembly from tank by disconnecting from tap changer HT & LT side bushing stud to outside by dismantling the channel and disconnecting star delta connection for transformer up to 1500 KVA capacity. After dismantling of Transformer and physical joint inspection of core coil assembly (removing all 3 limbs HV &LV winding from Core Assembly) washing of core assembly by hot oil for removing brunt carbon and copper particals and cleaning of complete top yoke by oil.

Material and Labour in repairs for rewinding of HT coils with copper wire DPC/super enameled high quality matching with existing gauge and impedence including requisite insulating paper/material in each layer of winding after taking down old existing winding of HT coils of 11 KV trasformer complete. Note : (i) The rate quoted against these items is inclusive necessary provision of all types of insulating materials , heating and varnishing etc.

All as per item No 47 here-in-before but LT coils with copper strips complete all as specified and directed.

Material and Labour for drying/ovening of complete Core coil assembly(CCA) in vacume chamber and continous monitering to improve of IR Values after varnishing the coil to eliminate moisture content from Transformer up to 1500 KVA capacity complete all as specified and directed

M&L Reassemble of complete core assembly and core coil assembly providing new coils and new tap leads of tap changer including requisite insulation material. Re Tanking tightening of top cover fixing of HV & LV Bushing, tap changer connection, WTI & OTI Connection and CT connection. Filling of oil, conservatior tank ready for final testing all as directed in presence of rep of MES all as specified and directed. (a) These operations/tests shall be carried out in the factory,results found satisfactory before bringing transformer to the original site for re-installation. (b) The following routine test as per IS 2026 (Part I) -1977 shall be carried out at repairing workshop/manufacturer having NABL Lab accredition and valid calibration of test equipments and shall submit MOU with any repairing workshop/manufacturer as per format attached along with quoted tender, bid shall be rejected in case of non submission of MOU/MOU from non qualified repair workshop/manufacturer : (i) Measurement of winding resistance. (ii) Measurement of voltage ratio and check of voltage vector relationship. (iii) Measurement of impedance voltage/short circuit impedance (principal tapping) and load loss . (iv) Measurement of no load loss and current. (v) Measurement of insulation resistance. (vi) Dielectric tests. (c) The contractor shall give written warranty of one year from the date of sucessfull testing and installation of transformer. The contractor shall submit test report from repair workshop/manufacturer. Note :- (i)HT/LT leg coils copper wire/strip and transformer oil required shall be measured and paid separately under relevant items of this Schedule. (ii)In case the defective transformer not repaired & installed at site within the specified period of 15 days from the date of handing over of defective transformer/complaint to contractor, a penalty recovery @ Rs 2500/- per day will be charged from his dues.

Supply and fixing in renewal of transformer bushing on LT 433 volt side including brass stems /rods conical bush and gasket suitable for indoor/outdoor transformer capacity up to 1500 KVA complete all as specified and directed .

All as per item No 51 here-in-before butb but HT 11 KV side complete all as specified and directed.

S&F in renewal of silica gel of breather assembly with vent pipe and new silica gel for indoor/outdoor transformer of the capacity up to 1500 KVA complete all as specified and directed.

Material and Labour for ON load centrifuging and dehydration including filteration and cleaning of transformer oil by dehydration machine electric operated without any shutdown of transformer including testing oil sample before and after dehydration and filteration oil complete all as specified and directed . Note : (i) Transformer oil required for top up shall be measured and paid for separate. (ii) Contractor have to arrange the dehydration machine and testing kit from his own resources without any extra cost

Supply and filling/ toping up of transformer oil in transformers ,having dielectric strength not less than 45 KV (at 2.5 mm gap) high voltage as per IS specification of low viscosity complete all as specified and directed .

Supply and fill in replacement silica gel in transformer complete all as directed.

Painting of transformer after preparation of old painted surfaces of steel, by brushing/cleaning stain, greasy spots with thinner, applying two coats of spray painting with PU paint with spraying machine to transformer indoor/outdoor, fixed on poles or in Sub Station at different location after disconnecting of HT supply from incoming and LT supply from outgoing capacity upto 1500 KVA complete all as specified and directed .

S&F in replacement of Power pack rating 110 Volt/7 AH, input voltage 230 Volt AC single phase, output voltage 110 Volt with Battery suitable for existing VCB complete all as specified and directed.

Supply installation & commissioning of 110V/30A SCR controlled Float Cum Boost Battery Charger unit including battery bank comprising 2 Volts/100 AH Cells - 55 Nos sealed maintenance free battery. The CCCV battery charger consisting of copper wound, air cooled transformer, 01 Set single phase full wave bridge rectifier consisting of diodes and SCRs, liberally rated mounted on heat sink and complete with resistor/condenser network for surge supperssion . During auto float mode automatic changeover shall take place from float mode to boost mode and vice versa, 01 Set of solid state constant potential controller to stabilize the DC output voltage of the float cum boost charger, 01 No electronic controller , DC digital ammeter , DC digital voltmeter, Potentiometer , DC, MCB for reverse battery protection . The charger should have alarm annunciation with visual and audible alarm with manual reset facility for fuse fail alarm. Float cum boost battery charger and DC distribution board shall be housed in powder coated sheet steel cubicle with panels of 1.6mm thickness ,

louvers for ventilation , gland plate will be provided for cable entry from bottom . The battery charger shall be divided into two compartments. The upper compartment shall house the battery charger & DCDB with all necessary controls. The lower compartment shall be suitable for housing the batteries. Tech specification shall be as under:- (a) Input working voltage-180 -270 Volts (b) Nominal Input Voltage - 230 V , AC , 50 Hz,1 (c) On load input power factor - > 0.8 (d) On load unit watt efficiencies-> 80% (e) No load losses of complete charge-< 10% (f) Ripple contents on the load (RMS)= 1% to 5% (g) Over load - 110% for 30 minutes and will give visual indication for over load condition. (h) Boost charging - 2.4 V/Cell . (j) Float charging -2.15 V/Cell (k) Float cum boost charging-Automatically changes from one state to another state as per battery condition and will give the visual indication for either float or boost based on charging mode. (l) Reverse polarity -No damage will caused . A visual indication for reverse polarity will appear with an audio alarm. (m) Short circuit-MCB protecton provided. Make of battery charger. Statcon/Sinetrac/Amar Raja Make of batteries. Exide/Amaron

S&F in replacement of Power pack rating 24 Volt/7 AH, input voltage 230 Volt AC single phase, output voltage 24 Volt with Battery suitable for existing VCB complete all as specified and directed.

Disconnecting electrically & mechanically indoor/outdoor transforemrs upto 250 KVA capacity, lowering down/getting out from plinth, 4/6 pole Structure carefully for prevednt/stoping for leakage of transformer oil (at site/sub station) including opening of top cover, draining out transformer oil and other items and storing the oil in suitable container (container to be provided by the contractor to keep aside for re -use) including replacement of all unserviceable gasket, after repairing/stoping of oil leakage the same re-connecting electrically and mechanically, testing complete all as specified and directed Note.The rates quoted is deemed to be included the cost of necessary labour charges for draining out & re-filling transforer oil, T&P, hydra, gasket, opening/closing of top cover by unscrewing nut, bolts washers etc.

All as per item No 61 here in before but of capacity 315 KVA to 630 KVA complete all as specified and directed

Platform :- M&L for Brick Masonry ( Using sub class 'B' Brick) platform of size 2m x 2m x 1 m hight , built in CM 1:4 complete with excavation & earth work , PCC 1:4:8 type D-2 in foundation , 15 mm thick rendering in CM 1:6 on sides and top of the brick work , upto 150 mm below ground level , supply and fixing of 02 Nos MS Channels ISMC-75 of suitable size for balancing of Transformer embedded in PCC 1:2:4 type B-1 up to 100 mm Thick RCC 1:2:4 with 10 mm steel bar includding 20 mm graded stone aggregate , including provn of steps on one side complete all as specified and directed .

Disconnecting electrically (and mechanically, ) outdoor transforemrs upto 200 KVA capacity, lowering down from 4 pole structure/Existing plinth to new plinth carefully and Re-installation of transformer on plinth , connecting electrically and mechanically, testing and commissioning complete all as specified and directed.( Rate is deemed to be inclusive of , T&P and man power ) complete all as specified and directed.

Supplying & Fixing in replacement of spouch insulator suitable for 630 to 800 amps, 11 KV HT VCB complete all as specified and directed

Fencing :- M&L for perimeter fencing of size 6m x 4m x 2m (as per site condition) having angle iron65X65X6mm post 2 m height for parameter fencing of Transformer / Sub stn 4 mm dia thick mild steel wire 75 MM x 25 MM Mesh up in to mattressess or cages, lapped wired and fixed in position including welded for fencing to grid fixed to angle iron including excavation , earth work , brick work , surface excavation and PCC 1:2:4btype C-2 and Necessary steel gate of angle iron of size 40 x 40 x 5 mm of size 01 m x 2 m including locking arrengment having square bar of size 12x12 mm with two coat of synthetic enamel paint over a coat of red oxide primer to all steel surfaces complete all as directed .

Material and labour for painting of LT panel boards out door/in door of size up to 3.00 Sqm floor mounted installed at different locations including preparation of exposed surface by removing old paint from the body, cleaning the surface with thinner and applying two coats of synthetic enamelled smoke grey paint complete all as specified and directed.

M&L for painting with two coats of superior aluminium paint including necessary preparation of surfaces of steel fencing by brushing/cleaning complete steel structure/frame/ gate for 11 KV transformer/2 pole to 8 pole structure/ HT & LT panels and Sub Station area up to 20 Sqm area complete all as specified and directed.

Supply and fix Heat shrinkable sleeves suitable for LT cables Of size 25 to 70 Sqmm complete all as specified and directed.

Supply and fix Heat shrinkable sleeves suitable for LT cables Of size 95 to 400 Sqmm complete all as specified and directed.

Supply and fix Heat shrinkable sleeves suitable for HT cables Of size 95 to 120 Sqmm complete all as specified and directed.

Supply and fix Heat shrinkable sleeves suitable for HT cables Of size 185 to 300 Sqmm complete all as specified and directed.

M& L for epoxy resin cast coated paint on existing current transformer, Support insulators and spouch insulators inside VCB and Bus Bar to increase the insulation level complete all as specified and directed.

Note : contractor should procure and provide 50 % of the material as listed above within 15 days of the placing of work order and shall be verified by the Eng-in-charge

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