REPAIR / MAINT OF HT DISTR SYSTEM AND TRANSFORMER, VCBS / RMUS, RELAYS AND OTHER CONNECTED WORKS AT NSB, NP, AP, NCS, KEY PERSONNEL COLONY AND OTHER ALLIED AREAS UNDER AGE E/M NO-I OF GE (U-I) VISAKHAPATNAM

Amount

Excavation in trenches, not exc 1.5 m wide and not exc 1.5 m in depth; for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, laying cables etc. n exc 10 sq m on plan and n exc 1.5 m in depth and getting out all excavated material in soft / loose soil complete all as specified and directed.

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

Removing of excavated surplus soil to a distance n. exc 50 m and depositing where directed at a level n. exc. 1.5 m above the starting point complete all as specified and directed.

M&L sand cushioning with clean and dry sand in trenches for protection of UG cable and including punning down complete all as specified and directed. Note:- Punned thickness shall only be measured and paid.

Supplying and laying un-reinforced precast concrete cable cover, class HV, Type 1, flat, of size 300mmx 180mm x 40mm, laid along alignment of cable as protection to cable in trenches complete all as specified and directed.

Boring holes horizontally under road, manually, in soft / loose soil, without cutting / disturbing the existing road surface, suitable for inserting pipe of n exc. 100 mm bore at a depth 0.75 m to 1.0 m from road surface for passing of UG cable, getting out and disposal of soil to a distance not exceeding 50 m complete all as specified and as directed. Note:- GI Pipe shall be measured and paid separately.

S&F 100 mm bore galvanised steel tubing, medium grade with necessary fittings, laid under road crossing, for cable protection including taking down complete all as specified and directed. Make - Tata / Jindal Steel / Surya Roshni Ltd. / Bhushan Power & Steel Ltd. / M/s APL Apollo Tubes Ltd

Supply & laying XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cables (heavy duty) with aluminium conductor, 11000 volts, Earthed, grade cross sectional area 240 Sqmm, 3 core, laid in trenches / duct / on pole including taking down existing cable complete all as specified and directed. Make :- Havells / KEI / Polycab / Gloster / Finolex

All as per Sl. Item No. 8.00 above but for cable of size 185 sqmm x 3 Core

All as per Sl. Item No. 8.00 above but for cable of size 120 sqmm x 3 Core

Supplying and laying synthetic rubber insulated mats 3 mm thick for voltage upto 33 kv for electrical purpose as per IS 15652-2006, (superseding IS 5424) suitable for electrical shock safety of sizes 2m x 1m including taking down complete all as specified and directed.

S&F danger notice plate of size 25 x 20 cm & 1.6mm thick mild steel sheet, vitreous enameled white, with letters, figures and conventional skull and bones in signal red colour and fixed with M.S. clamps, bolts and nuts of approved size for HT including dismantling compete all as specified and as directed.

M&L cable jointing kit for 11 KV (Earthed) grade 3 core XLPE armoured aluminium conductor cable of size 120 to 185 sqmm for outdoor termination, heat shrink type joint complete with jointing material and accessories including taking down complete all as specified and directed. Note:- (i) The cost of Disconnecting and reconnecting the cable with HT network is deemed to be included in the unit rate quoted against this item. (ii) The cost of re-arranging the cable if needed is deemed to be included in the unit rate quoted against this item. Make:- 3M / Denson / Raychem

All as per Sl Item No. 13.00 but suitable for cable of size of 240 to 300 Sqmm

M&L cable jointing kit for 11 KV (Earthed) grade 3 core XLPE armoured aluminium conductor cable of size 120 to 185 sqmm for indoor termination, heat shrink type joint complete with jointing material and accessories including taking down complete all as specified and directed. Note:- (i) The cost of Disconnecting and reconnecting the cable with HT network is deemed to be included in the unit rate quoted against this item. (ii) The cost of re-arranging the cable if needed is deemed to be included in the unit rate quoted against this item. Make:- 3M / Denson / Raychem

All as per Sl Item No. 15.00 but suitable for cable of size of 240 to 300 Sqmm

M&L cable jointing kit for 11 KV (Earthed) grade 3 core XLPE armoured aluminium conductor cable of size 240 sqmm to 400 sqmm for straight through, heat shrink type joint with jointing material and accessories including taking down complete all as specified and directed. Note:- (i) The cost of excavation is deemed to be included in the unit rate quoted against this item. Make:- 3M / Denson / Raychem

All as per Sl Item No. 17.00 but suitable for cable of size of 120 to 185 Sqmm

M&L for calibration and testing of combined inverse time over current and instantaneous IED relay, checking and cleaning / decarburizing its moving and fixed contacts and ensure physical healthiness with visual check for healthy tripping of over current and earth fault, adjusting tripping time, flag setting, ratio setting, instantaneous time setting etc as per installed capacity of transformer to be saved on maximum, short circuit current in accordance with percentage impedance of transformer with artificial current injection on primary side & secondary side with current injection test of HT Switchgear, complete all as specified and directed by Engineer-in charge. Note :- (i) Spares / meters shall be measured and paid separately. The job of calibration & setting shall be done in presence of MES rep / concern JE. Necessary test report of calibration shall be submitted by the contractor to Engr-in-Charge before claiming any payment against this item. (ii) Contractor shall provide all testing equipment, T&P and injection kit for testing and creating the artificial fault for testing the proper functionality of relays and instruments on designed settings & unit rate quoted against this item shall be considered to include all these aspects. (iii) The cost of manpower, HT tapes used for opening and reconnecting cable is deemed to be included in the unit rate quoted against this item.

M&L for overhauling / repair of 11KV vacuum circuit breaker (VCB) comprising of repairs, complete overhauling / servicing, cleaning of all parts, adjusting contacts, checking epoxy body, drive insulator, spring charge mechanism, locking arrangements tripping coil circuits (closed / open) etc, checking all mechanical operations supporting insulators bush trolley auxiliary contact. make female contact and check all wiring, carrying out preventive maintenance alongwith testing of breakers by current injection test and refixing the same after repair / overhauling complete all as specified and as directed. Note:- (i) The servicing includes for busbar duct chamber, cable alleys and connecting accessories (ii) The rate quoted shall be deemed to include for necessary T&P, nuts, bolts, washers, gasket, insulation tape, compound, painting of VCB panels with approved colour including lettering details all as per existing etc. to put in to the VCBs and panels in serviceable condition, testing and commissioning. (iii) Major spares like Breaker bushings, vacuum interrupter assly, busbar spout, busbar spout connections, circuit spout, circuit spout connections, buffer fixed contacts, moving contacts, tank assly, barriers, solenoid spares, dependent, spring mechanism / motor mechanism, trip unit etc will be measured and paid separately under relevant items. However the rate quoted shall be deemed to include for any other minor spares requiring replacement. (iv) The servicing shall be carried out by auhtorised service engineer of OEM and approval of the same shall be taken from Engr-in-Charge.

Overhauling/Repair of 11 KV VCB Panel with cleaning of all parts, checking & cleaning circuit all busbar spout bushings, CT/PT spout bushings, Busbar, cleaning of CT and PT, checking all wiring & rectifying Wiring faults, cleaning metering chamber, applying mono plast compound at busbar joints, fixing up issues with measuring instruments etc including minor item such as nuts, bolts, copper wires, HT insulation tapes etc required for repair complete all as specified and directed.

M&L for complete overhauling / repair of float cum boost charger, cleaning of all parts, checking all wiring , Checking Output Voltage, Checking entire DC Circuit from Charger to the panel Fuse including replacement of minor item required for repair complete all as specified and as directed by Engr-in-Charge.

M&L for collecting necessary required data & peak load details from IED / DMT of any type / Make from 11kV HT panel, transformer full load details during peak hours, relay Setting calculations & Co-ordination study, unit protection setting of transformers, furnishing feeder wise settings & submitting report with firm recommendations, achieving stream power distribution (complete 11 KV system) overall co-ordinations of time, adjusting / setting to plug and time multiplier settings of IED/DMT complete all as specified and as directed by Engr-in-Charge.

S&F in repair busbar/CT supporting insulator of rating 400 to 1250A, 25KA, suitable for 11kV VCB panel complete all as specified and as directed. Make:- ABB / Schneider / Siemens / Areva

S& F in repair service / test position limit switch 1NO+1NC, suitable for 400A to 1250A 11 KV VCB complete all as specified and directed. Make:- ABB / Schneider / Siemens / Areva

S&F in repair rectifier unit (Monoblock) 16A for spring charging motor of rating 400 to 1250A suitable for 11kV VCB complete all as specified and as directed. Make:- ABB / Schneider / Siemens / Areva

S&F in repair spring charging universal motor with gear box 220V AC/DC of rating 400 to 1250A suitable for 11kV VCB complete all as specified and as directed. Make:- ABB / Schneider / Siemens / Areva

S&F in repair thermostat suitable to operate on 230 Volts AC supply inside 11 KV HT VCB cable chamber & make as per OEM with necessary control connection complete all as specified and as directed.

S&F in repair space heater suitable to operate on 230 Volts AC supply inside 11 KV HT VCB cable chamber & make as per OEM with necessary control connection complete all as specified and as directed.

S&F 3 ph multifunction meter, digital type (displaying A, V, PF, Hz, KVA, KW, KVAR, KWh, Karsh etc.) Class 1/0.5 with RS485 port for communication in Modbus protocol, accuracy class-1, e- navigator, including taking down old one complete all as specified and as directed. Make:- L&T / Schneider / HPL / AE

S&F in repair LED indication lamps, 110 V of various colours complete all as specified and directed.

S&F in repair programmable numerical inverse time over current / earth fault relay having IDMT / NI / VI / DT curves with minimum time delay zero with respect to I>>, I>>>, Ie>>, Ie>>> settings, suitable for VCB of capacity 11/12 KV with all original / Retrofitting arrangements complete all as specified and directed. Make:- ABB / Schneider (Micom P127) / Siemens

All as per Sl Item No. 32.00 above but suitable for RMU of capacity 11/12 KV

S&F in repair epoxy resin body of rating 400 to 1250 A, suitable for 11KV VCB & of make as per OEM complete all as specified and as directed.

S & F in repair top clamps with hardware (pair) R/B phase, 400-1250 Amps, suitable for 11KV VCB & of make as per OEM complete all as specified and directed.

All as per Sl Item No. 35.00 above but Y phase

S & F in repair Insulating cover for R/Y/B phase, 400-1250 Amps, suitable for 11KV VCB & of make as per OEM complete all as specified and directed.

S & F in repair brass nut / Racking Nut suitable for 400-1250 Amps rating, 11KV VCB & of make as per OEM complete all as specified and directed.

S & F in repair Epoxy Resin Spout bushings for busbar single pole R/B phase, 400-1250 Amps, suitable for 11KV VCB panel & of make as per OEM complete all as specified and directed.

All as per Sl Item No. 39.00 above but Y phase

S & F in repair Epoxy Resin Spout bushings for CT/PT/Circuit spout single pole R/Y/B phase, 400-1250 Amps, suitable for 11KV VCB panel & of make as per OEM complete all as specified and directed.

S & F in repair Isolating contact any type of single pole Incoming / Outgoing , 400-1250 Amps, suitable for 11KV VCB & of make as per OEM complete all as specified and directed.

S & F in repair flexible connection, 400-1250 Amps, suitable for 11KV VCB & of make as per OEM complete all as specified and directed.

S & F in repair dashpot assembly up to 25 KA, 400-1250 Amps, suitable for 11KV VCB & of make as per OEM complete all as specified and directed.

S & F in repair Nylon Breaker wheel , 400-1250 Amps, suitable for 11KV VCB & of make as per OEM complete all as specified and directed.

S & F in repair Top guide roller, 400-1250 Amps, suitable for 11KV VCB & of make as per OEM complete all as specified and directed.

S & F in repair Top guide bush, 400-1250 Amps, suitable for 11KV VCB & of make as per OEM complete all as specified and directed.

S & F in repair Rack in / Rack out Handle / Motor charging handle up to 1250 Amps, suitable for 11KV VCB & of make as per OEM complete all as specified and directed.

S & F in repair Gromet, 400-1250 Amps, suitable for 11KV VCB & of make as per OEM complete all as specified and directed.

S & F in repair drive insulator with M10 Nyloc Nut suitable for 630 Amps rating, 11KV VCB & of make as per OEM complete all as specified and directed.

S & F in repair drive beam (Pair) suitable for 400-800 Amps rating, 11KV VCB & of make as per OEM complete all as specified and directed.

S&F in repair closing coil assembly, 110V DC suitable for 11KV VCB & of make as per OEM complete all as specified and directed. .

S&Fin repair tripping coil 110V DC suitable for 11KV VCB & of make as per OEM complete all as specified and directed.

S&F in repair T‐N‐C Switch (Breaker Control Switch) for control switches & control wiring, suitable for 11KV VCB Panel & make as per OEM complete all as specified and as directed.

S&F in repair vacuum interrupter of rating 400 A / 630 A / 1250 A suitable for 11KV VCB & make as per OEM complete all as specified and as directed.

S&F in repairs bakelite HRC fuse base with carrier 32A, 415 V with HRC fuse 5 amps of make as per OEM complete all as specified and directed.

S&F in repairs buffer for closing spring suitable for 11KV VCB & make as per OEM complete all as specified and as directed.

S&F in repairs buffer for opening spring suitable for 11KV VCB & make as per OEM complete all as specified and as directed.

S&F in repairs Ratchet wheel suitable for 11KV VCB & make as per OEM complete all as specified and as directed.

S&F in repairs Trip Roller suitable for 11KV VCB & make as per OEM complete all as specified and as directed.

S&F in repairs Motor cut off switch Micro switch assembly suitable for 11KV VCB & make as per OEM complete all as specified and as directed.

S&F in repairs 12 way auxiliary switch (6 NO + 6 NC) suitable for 11KV VCB & make as per OEM complete all as specified and as directed.

S&F in repair push button actuator 1 No element, 22.5 mm dia assembly complete all as specified and directed.

Labour only for identifying, diagnosing, tracing, checking & rectifying High Tension (11KV) faults, tracing location by meggering the lines, faults in panels, VCB`s, Transformers and other switchgears at any location, any time round the clock and rectifying it to restore the supply within time limit at various locations using appropriate fault locator, cable route locator etc complete all as specified and directed. Note:- 1. All the activities to trace the fault, rectifying & restoring the supply shall be carried out within specific reasonable time as directed by the Engineer-in-charge. 2. The cost of required tools (T& P), minor items such as lugs, nuts, bolts, HT insulation tape and safety equipments required for the job shall deemed to be included in the unit rate quoted against this item & nothing extra shall be paid to contractor by the department on these ground. 3. Safety of manpower deployed for the job is contractor’s responsibility. In case of any accident / Fatal injury, contractor shall be held responsible to settle all claims and nothing extra shall be paid to the contractor on this account. 4. The cost of all manpower (any number) for the job is deemed to be included in the quoted unit rate. 5. The cost of Fault identification by use of fault locator (if needed) is catered in separate Items. 6. Minimum one VCB / RMU technician, one Transformer Technician & one cable Jointer must be available round the clock during rectification process of fault if respective fault occurs.

M&L for detecting HT / LT UG cable faults located in any stretch / depth with sophisticated cable fault locator consisting of microprocessor based pre-locator system, HV surge generator, fault pin point surge wave receiver, cable identification instrument , cable tracer for exact location of under ground cable routes complete all as directed. Note:- The rate quoted deemed to be inclusive of arrangement of necessary fault locator equipment, transportation of equipment & charges for service engineer.

S&F in repair 11 KV CT, epoxy resin cast, dry type, indoor, 200/100 (primary) -5 + 5 A (Secondary) , with core 1, class 0.5, core 2 class 5P10 for fixing with spout bushing complete all as specified and directed.

S&F in repair 11 KV CT, epoxy resin cast, dry type, indoor, 100/50 (primary) -1 + 1 A (Secondary), with core 1, class 0.5, core 2 class 5P10 for fixing with spout bushing complete all as specified and directed.

S&F resin Cast 11kV /√3 / 110v/√3 potential transformers, make as per OEM suitable for 11kV VCB panel including taking down old one complete all as specified and as directed.

M&L for inspection, testing, servicing and overhauling of Factory Made 11 KV, 400-800 Amps, SF6 Insulated, Motorized, Outdoor RMU, 21 kA for 3 Seconds, Consisting of any nos Incoming and any nos Outgoing Feeders including following complete all as directed by Eng-in- charge :- (a) Preliminary inspection of 11 KV MV Switch gear for any defects. (b) Testing of CTs (c) Servicing Switch gear panels :- (i) Cleaning panel (ii) checking the condition of SF6 gas (iii) HV test. Notes:- (1) The GIS Switchgear servicing includes:- (a) Cleaning of GIS for dust, oxidising and decarburizing with CTC. (b) Repair/servicing of spring loaded operating mechanism. (c) Repair/servicing of spring charging motor. (d) Checking, repairing & servicing of gearbox, auxiliary switches, spring, limit switch etc complete. (e) Checking & repairing electrical and mechanical operations. (f) Lubrication all moving parts with petroleum jelly & cleaning all bushing insulators with CTC. (g) Tightening of all mechanical connections of mechanism. (h) Proper tightening all LV connection of VCB and cable chamber & allied connecting accessories. (2) The rate quoted shall be deemed to include for necessary T&P, nuts, bolts, washers, gasket, insulation tape, compound, painting of RMU panels with approved colour including lettering details all as per existing etc. (3) Major spares will be measured and paid separately under relevant items of BOQ, however the unit rate quoted against this item shall be deemed to include for any other minor spares requiring replacement.

S & F in repair under voltage coil kit 24 Vcc/Vdc suitable for 11KV, 400 to 800 Amp RMU & of make as per OEM complete all as specified and directed.

S & F in repair circuit-breaker trip coil kit 24 Vcc/Vdc suitable for 11KV, 400 to 800 Amp RMU & of make as per OEM complete all as specified and directed.

S & F in repair circuit-breaker closing coil kit 24 Vcc/Vdc suitable for 11KV, 400 to 800 Amp RMU & of make as per OEM complete all as specified and directed.

S & F in repair 1/2 AA lithium battery, 3.6V DC, suitable for 11KV, 400 to 800 Amp RMU relay & of make as per OEM complete all as specified and directed.

S & F in repair AA/AAA lithium battery, 1.5V DC, suitable for 11KV, 400 to 800 Amp RMU relay & of make as per OEM complete all as specified and directed.

S&F in repair motor for motorized mechanism 24 Vcc/Vdc suitable for 11KV, 400 to 800 Amp RMU & of make as per OEM complete all as specified and directed.

S & F in repair isolator switch position indication suitable for 11KV, 400 to 800 Amp RMU & of make as per OEM complete all as specified and directed.

S & F in repair circuit breaker position indication suitable for 11KV, 400 to 800 Amp RMU & of make as per OEM complete all as specified and directed.

S & F in repair CB Fault Tripping Indication suitable for 11KV, 400 to 800 Amp RMU & of make as per OEM complete all as specified and directed.

S & F in repair flair 22D lithium dua Fault Passage Indicator (FPI) suitable for 11KV, 400 to 800 Amp RMU & of make as per OEM complete all as specified and directed.

S & F in repair VPIS Standard, 3.3 to 7.7 KV suitable for 11KV, 400 to 800 Amp RMU & of make as per OEM complete all as specified and directed.

S & F in repair heat resistor for I switch operating mechanism suitable for 11KV, 400 to 800 Amp RMU & of make as per OEM complete all as specified and directed.

S & F in repair heat resistor for D/B circuit breaker operating mechanism suitable for 11KV, 400 to 800 Amp RMU & of make as per OEM complete all as specified and directed.

S & F in repair RM6 operating handle big size suitable for 11KV, 400 to 800 Amp RMU & of make as per OEM complete all as specified and directed.

M&L for taking down 11KV, 400 to 800 Amp RMU, transporting to workshop from sub station (OEM Factory), opening including filling of SF6 gas, re-assembling by authorised technical rep of OEM, bringing back to site safely and re-installing, testing and commissioning the same complete all as specified and directed.

M&L for testing of HT 11KV VCB 630A/800A complete for hypotest by injecting high voltage breaker opening / closing timing time testing and tuning of vacuum interrupters and all contacts, current carrying parts, testing and tuning of rotating mechanism, insulation test, micro ohm test with suitable test kits, tool and instruments , test report to be signed by contractor, JE, Engeer-in-Charge & countersigned by GE complete all as directed by the Engineer-in-Charge.

M&L for applying silicone High Voltage Insulator coating (Si-COAT 570 RTV) solution using electric airless sprayer to the inside surface of cable chamber alongwith busbar chamber & breaker chamber including all Spout bushings, insulators, CTs complete of 11 KV Indoor VCB panel including all dis-connection & re-connection of cables etc. complete all as specified and directed. Note:- (i) Quantity of solution consumed per VCB panel shall not be less than 6.8Kg (ii) Each VCB whether I/C or O/G should be treated as one unit.

M&L with replacement of 6mm thick synthetic rubberized cork sheet gasket for top cover, HT/LT bushes for transformer of capacity 100 to 800 KVA including tightening all the bushings and top cover to avoid any oil leakages complete all as specified and directed.

S&F in repairs off load tap changer assembly suitable for transformer of capacity upto 800 KVA as per existing with 5 tapping position including opening top cover, conservator etc complete all as specified and as directed.

Shifting of standby Transformer of any capacity from one sub station to another sub station, closing the transformers for loading into transporting vehicle with the help of crane, transportation to another site, unloading, including disconnecting and removing of existing faulty transformer and installation of standby transformer, making necessary HT/LT connections, earth connections and restoration of power supply including all T&P required complete all as specified and as directed.

M&L for transportation of faulty transformer of any capacity from sub station to factory (approx distance 15 to 20 Kms) after disconnecting, closing the transformers for loading into transporting vehicle with the help of crane, transportation to factory, bringing back the same transformer safely after necessary repair / tests, unloading, re-installation, making necessary HT/LT connections, earth connections and restoration of power supply including all T&P required complete all as specified and as directed.

M&L for isolating the HT supply of outdoor type transformer of capacity 100 to 800 KVA, disconnecting HT and LT connections by opening clamps, bus bar extension and isolating the cables, keeping all the cables out from the HT/LT sides, physically checking of transformer for healthiness such as checking pressure release valve, oil condition etc. and performing transformer tests such as HV/LV megger test, ratio test, magnetic balance test, checking the lead condition from winding to bus rods, necessary soldering / jointing etc complete all as specified and as directed. Note:- (i) All testing shall be done in presence of Engr-in-Charge or his accredited rep and test reports shall be signed by contractor and Engr-in-Charge and kept on record. (ii) If the transsformer found satisfactory then HT/LT connections, assembly etc shall be done by the contractor and transformer shall be charged. (iii) If the transformer fails in these tests then the contractor has to shift the transsformer for winding / overhauling which shall be measured and paid separately. (iv) Cost of winding / overhauling if required shall be measured and paid separately.

M&L earthing complete with galvanised steel earth plate electrode of size 600 x 600 x 6 mm thick buried directly in ground in vertical position (earth pit not less than 2.25 m deep below the normal ground level) with top edge of the earth plate not less than 1.5 m below normal ground level, connected to earth lead of galvanised iron strip 32 x 6 mm by means of bolts, nuts, check nuts and washers of galvanised iron or steel, all as shown in electrical plate No. 3 connected to earthing test point including dismantling complete all as specified and directed. Note:- The unit rate shall also include for earth work in any type of soil, PCC 1:3:6 type C1 chamber, RCC 1:1.5:3, type A1 cover slab, 50 mm thick reinforced with 8 mm dia TMT bar @ 140 mm C/C both ways, 10 mm dia plain bar lifting handle embedded in cover slab, Main earthing lead from earth electrode to test point upto 7.5 m length, 20 mm bore medium grade GI watering pipe, 40 mm bore GI light grade earth lead protection pipe, funnel, wire mesh, copper lugs, charcoal and common salt in alternate layer etc.

Supply and topping up of transformer oil with di-electric strength not less than 60 KV in 2.5mm rodgap into the conservator tank / body tank of the transformer / OCB / FRMUs etc at various locations complete all as directed by the Engineer-in-Charge. Make: Apar (Power Oil) / Savita (Transol) / Asian

Filtration of transformer oil of transformers / FRMUs installed at various locations to achieve di-electric strength not less than 60 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 in repair brass spindle / studs for terminal on HT side threaded complete with nut, washers etc of suitable dia for transformer capacity of 200 - 400 KVA complete all as directed by the Engineer-in-Charge.

All as per Sl item No. 95.00 but suitable for 500 to 800 KVA transformer

S & F in repair brass spindle / studs for terminal on LT side threaded complete with nut, washers etc of suitable dia for transformer capacity of 200 - 400 KVA complete all as directed by the Engineer-in-Charge.

All as per Sl item No. 97.00 but suitable for 500 to 800 KVA transformer

M&L for replacement of silica gel breather assembly complete suitable for 200 to 400 KVA transformer as per existing with breather unit and silica gel including connecting with proper necessary gaskets if necessary & removing the unserviceable breather assembly complete all as specified and as directed.

All as per Sl item No. 99.00 but suitable for 500 to 800 KVA transformer

Supply and replacement of silica gel in breather of transformers all as specified and as directed.

S & F HT bushings made out of porcelain, as per existing and suitable for distribution transformer of capacity 200 to 400 KVA including dismantling old and complete all as specified and as directed. Make:- Pactil / BHEL / Jaipuria Brothers

All as per Sl item No. 102.00 but suitable for 500 to 800 KVA transformer

S & F LT bushings made out of porcelain, as per existing and suitable for distribution transformer of capacity 200 to 400 KVA including dismantling old one and complete all as specified and as directed. Make:- Pactil / BHEL / Jaipuria Brothers

All as per Sl item No. 104.00 but suitable for 500 to 800 KVA transformer

M&L for preparation of old exposed painted surfaces of indoor / outdoor type transformer of capacity 200 to 400 KVA and painting the same with two coats of synthetic enamel paint including writing details of transformer on transformer plinth / base with white synthetic enamel paint on black synthetic enamel paint back ground complete & including one coat of white wash on exposed surface of transfomer plinth / base complete all as specified and as directed. Note :- Colour of paint shall be as decided by Engr-in-Charge. Make:- Jotun India Pvt Ltd / Apcolite (Asian) / Luxol (Berger) / Jenson & Nicholson Paints Ltd (Borolac) / Shalimar Paints Ltd (Superlac)

All as per Sl item No. 106.00 but 500 to 800 KVA transformer

M&L for rewinding of distribution transformers of any capacity / size / type by strip opening & rewinding the HV coils (i.e. primary coils) from core assembly safely, removing old defective insulation paper, re-winding the coils with new copper wire as per I.S. of same gauge and existing size together with new insulated materials / bracings before placing in to the transformer and assembling the coil with new DPC insulation and fitting the coils in the chamber, testing and commissioning the transformer and recording the test results complete all as directed. Note: M&L for re-insulation of serviceable coils will be measured & paid separately under relevant items.

All as per Sl item No. 108 but for LV coils

S&F gun metal drain valves suitable for transformer of capacity 200 to 800 KVA including dismantling old one complete all as specified and as directed. Make :- Upadhyay / Leader / Zoloto

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