REPAIR/MAINTENANCE OF TRANSFORMER, VCBS/OCBS, HT 11 KV DISTRIBUTION SYSTEM INCLUDING 4 POLE/ 2 POLE STRUCTURE ETC AND ALL CONNECTED ALLIED WORKS UNDER GE (A) JAMNAGAR AT MILITARY STATION JAMNAGAR

Material and labour for transportation of transformer from site/E&M yard to workshop for repair of capacity 63 to 500 KVA complete including Disconnection of transformer any make indoor/outdoor type from LV/HV side including disconnection of earthing GI strips and taking down transformer from plinth/04 pole structure/02 pole structure with the help of chain pulley/crane incl megger test , ratio test, magnetic balance test. Short circuit test and reinstallation the transformer after repair to its original position and making all LV/HV connections including earthing and testing complete all as specifiedand directed by Engineer-in-Charge. Note: Shifting of transformer from site/yard to workshop and return back from workshop to site/yard shall be measured as single unit. Necessary tools and equipments with labour for shifting of the transformer and transportation to workshop and back deemed to be included in the quoted rate.

Material and labour for draining out transformer oil from the transformer of any make indoor/out door and store in a clean barrel for re-use and disconnection of internal electrical connection by taking out the top cover complete, cleaning of tank, removal of sludge etc by lifting the core with complete LV/HV coil of transformer and segregating to serviceable and unserviceable coils shall be kept aside for reuse after complete varnishing and testing of each coil including removal of complete core and accessories such as HV/LV bushings with metal parts, oil temp indicator, winding temp indicator and disconnection of tap changer. Assembling of yoke fitting, assembling of LV/HV coil in completely intact position over the CCSI laminated core the HT coils shall be fixed over the LV coils by providing the insulation barriers and making the assembly complete in intact position (insulation material shall be measured and paid separately) including assembling of core mounted on channel connecting all the internal connections, soldering brazing of HV/LV connections by silver electrodes including replacement of leads complete by providing tubular insulation of tap changer assembly and its connections and lowering of complete assembly in tank with suitable locking arrangements re fixing the top cover of transformer including the other accessories and making the transformer leak proof complete all as specified and directed for the following capacity. 63 KVA to 100 KVA

100 and upto 250 KVA

250 KVA upto 500 KVA

Material and labour for winding of HV/LV coils of transformer DPC copper winding wire grade of existing gauge and size complete all as specified and directed.

Material and labour for insulation material PCB electrical grade such as barriers, coil to coil insulation block and rings insulation cylinders, ebonies sleeves etc all as specified and directed for 63 KVA to 500 KVA transformer complete all as specified and directed.

Material and labour for ovening of complete core assembly of transformer including HV/LV coils in oven for minimum 72 hrs for achieving desired insulation value complete for capacity 63 KVA to 500 KVA all as specified and as directed. Note: Re opening shall be done without any extra cost if the desired result are not found after fixing the coils back to its original position in the tank.

Supply and fix cork sheet gasket kit cut to shape for the top covers and other required places of the transformer of following capacity of transformer complete all as specified and directed. 63 KVA to 100 KVA

100 and upto 250 KVA

Material and labour for pouring fresh/topping up transformer oil for 11/0.433 KV transformer confirming to IS-335 in the transformer of any capacity complete duly filtered having dielectric breaking strength not less than 60 KV all as specified and as directed.

Material and labour for cleaning of surface of transformer of capacity by scrapping out old paint and painting of transformer by two coats of synthetic enamel gray paint externally over a coat of red oxide including writing of SM/MES No on the transformer complete all as specified and directed for the following capacity. 63 KVA to 100 KVA

100 and upto 250 KVA

250 KVA upto 500 KVA

Material and labour for opening up top cover of transformer installed in position, disconnecting connections and reconnecting after renewal of worn out/defective parts such as check nuts, washers, LT bushes, HT bushes, Tap changers etc, refixing the top cover in position after completion of the repair work complete all as specified and directed for the following capacity of transformer. Note: Defective parts shall be measured and paid seperately. 63 KVA to 100 KVA

100 and upto 250 KVA

250 KVA upto 500 KVA

Supply and fixing of LT bush with low Voltage brass studs with checks nuts, washers etc of 11 KV grade and LT bushing parts such as porcelain, clamp nuts and bolts etc complete all as specified and directed for the following capacity of transformer. 63 KVA to 100 KVA

100 and upto 250 KVA

250 KVA upto 500 KVA

Supply and fixing of HT bush with High Voltage brass studs with checks nuts, washers etc of 11 KV grade and HT bushing parts such as porcelain, clamp nuts and bolts etc complete all as specified and directed for the following capacity of transformer. 63 KVA to 100 KVA

100 and upto 250 KVA

250 KVA upto 500 KVA

Supply and fixing Breather assembly with silica gel and mounting packing with olt & nuts complete all as specified and directed for the capacity 63 KVA to 500 KVA of transformer.

Material and labour for dehydration and filtration of transformer otl for 11/0.433 KV transformer to achieve dielectric breaking strength (BDV) not less than 45 KV any capacity of transformer by suitable filtration machine complete all as specified and directed.

Material and labour for preparation of LT side burnt cable end after cutting of burnt portion and supply & fixing new aluminium copper lugs (set of 3 Nos), insulation, LT end joint on LT end cable etc including taking out cable loop including necessary excavation. Earth work, returning filling etc complete all as specified and directed by Engineer-in-Charge for the following size of cables. Size 50 Sqmm to 95 Sqmm 3.5 Core

Size 120 Sqmm to 185 Sqmm 3.5 Core

Size 240 Sqmm to 400 Sqmm 3.5 Core

Material and labour for transportation of transformer from site to E&M yard, E&M yard to site and one site to another site in inftry area of capacity 63 to 500 KVA complete including disconnection of transformer any make indoor/outdoor type from LV/HV side including disconnection of earthing GI strips and taking down transformer from plinth/04 pole structure/02 pole structure with the help of chain pulley/crane including making all LV/HV connections and refixing after the shifting complete all as specified and directed by Engineer-in-Charge. Note: Shifting of transformer from site to E/M yard and return back from site to E/M yard, One site to another and return back from another site to site one shall be measured as single unit. Necessary tools and equipments with labour for shifting of the transformer and back deemed to be included in the quoted rate.

Material and labour for rectify the leakage of transformer oil by opening up the top cover of transformer installed in position, disconnecting connections and reconnecting after rectified the leakage of oil refixing the top cover in position after completion of the repair work complete all as specified and directed for the capacity 63 KVA to 500 KVA transformer.

Supply and fixing cable joining kit for 11 KV (Earthed) grade cable for outdoor termination heat shrink type joint complete with joining material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 50 Sqmm to 95 Sqmm complete all as specified and directed.

Supply and fixing cable joining kit for 11 KV (Earthed) grade cable for outdoor termination heat shrink type joint complete with joining material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 Sqmm to 185 Sqmm complete all as specified and directed.

Supply and fix cable jointing kit for 11 KV 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 50 Sqmm to 95 Sqmm.

Supply and fix cable jointing kit for 11 KV 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 185 Sqmm.

Material and labour for bring the van mounted full automated underground cable fault locator machine at site for find out HT/ LT cable fault in underground completely and taking out HT/LT un-serviceable / faulty cable/service conection cable of any grade / type/ class of any size for repair and testing by HT/LT meggar, cable fault locator, relaying after repairing complete with joinng material and accessories suitable for re-use complete all as specified and as directed. Note: (a) Fault machine, cable & T&P required shall be arranged by the contractor. (b) Cable jointing kit for HT/ LT is measured separately. (c) Excavation, earth work returning filling, relaying in of good condition cable protection brick/PCC cover up to 100m shall be included in quoted rate.

Material and labour for repair and servicing of HT (HT 11 KV) two pole structure by replacing aluminium PG clamps, servicing of GOD, GI bolts and nuts, pieces of ACSR conductor (DOG Size) with insulation sleeve RYB of any size as jumpers and applying silicon compound for prevention of arcing due to dust/salt deposits over the surfaces including preparation of surfaces, applying zinc chromate primer on rusted surfaces and applying one coat of aluminum paint to the entire structure complete all as directed. Note: Rate quoted shall be inclusive of two coats of white wash on exposed concrete.

Taking down/ ISOLATING HT switch gear (Vacuum circuit breaker) of capacity 11 KV 250/350 MVA, up to 1250 Amps comprising of following repairs, servicing, carring out preventive maintanance by OEM and refixing the same after repairs/servicing:- (a) Tripping off the breaker, lowering the breaket with raising/lowering handle and pulling out the breaker complete from the panel along with the trolley for servicing/inspection/overhauling. (b) Servicing/Inspection/Checking of automatic safety shutter operation for serviceability and replacement of spares if required. (c) Servicing/Inspecting/Checking of circuit spout connections for RYB phases and replacement of spares if required. (d) Dismantling and checking of cross bar assembly, fixed contacts and current carring parts of the breaker, trolley, insulated assembly and checking lamination with clamps, epoxy spout, isolator assembly etc. (e) Setting, reassembling, cleaning, adjustment of fixed contacts, main contact, arcing contacts and chamber baffle pot assembly, pot contact for proper setting of auxiliary contacts operating mechanism. (f) Servicing/Inspecting/Checking of secondary sockets/busbar earthing plugs/earthing sockets and replacement of spares if required. (g) Checking, setting and adjustment of lowering and raising operation of the breaker trolley. (h) Lubrication and greasing of all moving parts of the trolley, stopper bolt for proper operating and closing of shutter gear, isolation resistance trolley of with vacuum interrupter assembly. (i) The inspection of HT switch gear shall involve. (a) Inspection of truck & hoist assembly. (b) Inspection of assembly & components of solenoid assembly. (c) Inspection of assembly & components of dependent mechanism. (d) Inspection of assembly & components of spring box mechanism. (e) Inspection of motor mechanism spring charge assembly. (f) Inspection of assembly of trip unit & related components.

Notes: (i) The rate quoted shall be deemed to include for necessary T&P, nuts , bolts, washers, gasket, insulation tape, compound to put in to the VCBs and panels in serviceable condition, testing and commissioning all as specified and directed by the Engineer-in-Charge. (ii) Major spares will be measured and paid separately under relevant item No. 24.00 of schedule 'A'. However the rate quoted shall be deemed to include for any other minor sparess require replacement.

Supply the following spares suitable for HT switch gear (Vacuum circuit breaker ) and RMU of capacity 11 KV 250/350 MVA , up to 1250 Amps and 11 KV HT panel repair work under relevant Schedule 'A' : Big gear assembly

Small gear assembly

Tripping shaft assembly

Closing shaft assembly

PT Fuse for 11kv VCB panel

Closing coil assembly 24 VDC MAKE ABB

Tripping coil assembly 24 VDC MAKE ABB

Breaker control switch

Auxiliary switch 7NO + 7NC

Fuse base with carrier assembly.

32 pin plug & Socket.

RMU SELF POWER RELAY (100-230 V AC/DC POWERD RELAY ASHIDA MAKE )

Numerical relay 3OC + 1 EF (CG make )

Digital Ammeter 96 *96

Digital Voltmeter

Indicating Lamps Red

Indicating Lamps Yellow

Indicating Lamps Blue

Indicating Lamps Amber

Indicating Lamps White

Indicating Lamps Green

Breaker Control Switch

PT Fuse for 11 KV VCB Panel

HRC control fuses 2A, 4A, 6A, 10A=10 each

Trip Circuit Healthy push button with No Contacts

CRC Spray Bottle

Insulator for bus bar Support

Spring charging motor for ABB RMU 11 KV

Limit Switch Imported RMU Make ABB

SF6 Gas Cylinder of 3 Kg

RMU ( Make ABB ) Gas Linkages O Rings Set

Self powered relays battery 3.6 V

Moly kote Spry -51

Epoxy paint for 11 kv

Disconnecting & taking out non functional ACB of any description and any make of rating 11KV, 630 Amps to 800 Amps dismantling/opening of the ACB for servicing/over hauling taking out and removing unserviceable/defective parts including cleaning and servicing greasing,oiling of the parts etc and reassembling the ACB after over hauling /servicing and its testing complete all as specified and directed.

Service charges of OEM for attending Servicing /Overhauling/caliberation of Siemens & ABB / Areva make11KV RMU VCBs CHARGES TESTING & CALIBRATION OF VARIOUS TYPES OF ELECTROMAGNETIC RELAYS & MUMERICAL RELAYS11KV PANEL. O/C & E/F Relay, testing throw primary injection. (a) Aux. Relay, Buch, OTI, WTI. Alarm (b) Aux. Relay, Buch, OTI, WTI. trip (c) Master Trip Relay, (d) Current transformer testing (CT) (e) Protection transformer testing (PT) (f) IR value testing. (g) Power wiring testing. (h) Ammeter & volt meter testing Notes: (i) The rate quoted shall be deemed to include for necessary T&P, nuts, bolts, washers, gasket, insulation tape, compound, to put in to the RMU/VCBs and panels in serviceable condition, testing and commissioning all as specified and as directed by the Engineer-in-Charge. (ii) Major spares will be measured and paid separately under relevant item No. 24.00 of Schedule 'A'. However the rate quoted shall be deemed to include for any other minor spares require replacement.

Service charges of OEM for attending Servicing /Overhauling/repairing of mechanical parts of 11 KV RMU (Make ABB ) at MRS. Notes: (i) The rate quoted shall be deemed to include for necessary T&P, nuts, bolts, washers, gasket, insulation tape, compound, to put in to the RMU/VCBs and panels in serviceable condition, testing and commissioning all as specified and as directed by the Engineer-in-Charge. (ii) Major spares will be measured and paid separately under relevant item No. 24.00 of Schedule 'A'. However the rate quoted shall be deemed to include for any other minor spares require replacement.

Supply, install and testing for maintenance free chemical earthing of dual pipe technology of 3 mtr long with outer pipe dia 88 mm and inner pipe dia 48 mm, the pipes are properly galvanised for 80-120 micron and wall thickness of inner pipe 3 mm and 2 mm of outer pipe. There is additional copper coating on outer surface. There should be terminal for connection of 75 x 6 mm with 2 holes of 14 mm dia. Fast Electrode is duly filled with highly conductive material with sealing at boath ends with lead terminal of 75 x 6 mm at top along with 2 bags of 25 Kgs each of earth enhancing compound. The chemical compound should be tested and certified by any international accredited and BIS accredited laborartory. The testing laboratory should be an ISO 9001 and 14001 certified. The earth enhancing compound should be tested reffering to protocol IS 1350 and IEC 62321/111/54/CDV. The ph value of compound should be 7-8. The content of mercury and hexa chromium should be below detection level. The electrode should be tested for salt spray test as per BIS 117-09 for corrosion for minimum 500 Hrs. The electrode should be duly tested and certified by CPRI Govt of India for a min short circuit current of 42 k amps for 1 Sec with initial pick of 8.2 K amp connected to copper strip 20 x 3 mm thick earth strip by means of bolts, nuts, check nuts and washers of copper with 40 mm dia medium grade GI pipe as a protection up to 7.5 mtr long and RCC pit with cover complete and connected to earthing test point all as specified or indicated including testing on completion, complete all as specified and as directed. Model FE 88, 3 Mtr (copper) of Make Fast Electrode or its equivalant specifications appoved make by Garrison Engineer.

Dismantling insulators any type, any size

Dismantling of ACSR or AAC conductors

Dismantling cross-arms of M.S. channel or angle sections etc. complete.

Dismantling unserviceable poles of any description and any size including demolition of Cement Concrete (as/ if required) and made good disturbed Ground complete all as specified and as directed. Note : Unsv Poles will be dismantled at Ground Level and disturbed ground will made good as directed for which Earthwork, demolition of cement concrete, etc. will not be measured and paid separately.

Material and labour for fixing of ACSR conductor on existing or new poles all as directed.

Supply and fixig for Prestressed concrete poles of 11 meter long having 152mm x 152mm at top and 152mm x 260mm at bottem, class 9 with necessary excavation, foundation and coping including applying two coats of of exterior weather proof paint (Cement based paint) of approved colour to pole and to MS cross arms, cable protection pipe, brackets etc with two coats of Aluminium Paint over a coat of red oxide primer including Synthetic enamel Painting in alternate lines of Yellow & Black Strips min of 6 Nos (each Strip 200 mm wide) at bottom of polecomplete all as specified and as directed. Note:- Earthwork, Cement Concrete etc. will be measured and paid under approprite Items.

Material and labour for cross arms, bracing, supports, clamps and back plated fabricated from structural steel sections including nuts, bolts, washers, welding bending cold or hot drilling holes for bolts in any shape or size as directed inclusive of 2 coats of aluminium paint over a coat of red oxide primer after dismantling old unserviceable cross arms complete all as specified and as directed.

Supply and fixing disc type Insulator (single disc assembly) in repair porcelain vitreous, white brown or green 145 mm height and 255 mm dia ball and socket type with tension clamp galvanized iron nut for conductors working pressure 11000 volt grade complete.

Supply and fixing Insulator pin type epoxy insulators vitreous, white brown or green including one galvanized mild steel spindle, two galvanized washers in repair and one galvanized iron nut for conductor working pressure 11000 volt grade complete.

Supply, laying & testing cable XLPE insulated screened PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) with stranded aluminiium conductor, 11000 volts grade cross sectional area 95 sq. mm 3 Core earthed including taking down old u/s cable.

Excavation in trenches n exc. 1.5 m wide and exc 1.5m deep and n.exc 3.0 m deep for foundation beyond the first 1.5 m ,etc. or for shafts, wells cesspits, manholes, pier holes, etc. n exc.10 sq m on plan and getting out in hard/dense soil complete all as specified and directed.

Excavation in tenches not exceeding 1.5m wide and not exc 1.5m depth and getting out in soft/dense soil complete all as specified and as directed.

Returning, filling, including spreading, leveling, watering and well ramming in layers not exc. 25cmin soft/loose soil complete all as specified and as directed.

Removal of excavated soil to a distance not exc 50 m and depositing where directed at a level not exc 1.5 mtr above the starting point complete all as directed.

Material and labour for sand cushioning in trenches for cable protection including consolidation complete all as directed.

Supplying and laying un-reinforced pre cast concrete cable cover of class HV type1 flat size 300 mm x 180 mm x 40 mm fixed in replacement of any type bricks or PCC covers complete all as speicified and directed.

Material and labour for GI Pipe light grade complete with fittings laid in floor/ trenches/ wall as cable protection of 100 mm dia all as specified and directed.

Supply & Fixing of HT Copper fuse for GOD Set complete all as specified and as directed. 20 Amp HT fuse

40 Amp HT fuse

60 Amp HT fuse

80 Amp HT Fuse

Material and labour for PCC 1:4:8, type D2 (using 40mm graded stone aggregate) as in foundation filling and mass concrete all as specified and directed.

Material and labour for PCC 1:3:6, type C2 (using 40mm graded stone aggregate) as in foundation, filling and mass concrete all as specified and directed.

Material and labour for PCC 1:2:4 type B-0 using 12.5 mm graded BT stone aggregate as in bed block for hold fast or coping including necessary form work complete all as specified and directed by Engineer-in-Charge.

Material and labour for switch air break gang operated triple pole out door type with drop out switch fuse unit on HT 11 KV 50 cycle AC suitable for current rating upto 200 Amps mechanically operated mounted on insulators (12 Nos epoxy insulators) and frame with operating mechanism worked from ground level with earth switch and including locking arrangement complete all as directed.

Restringing and stretching of existing sagged HT/LT ACSR conductor of any size on OH electric line of any length on existing poles after disconnection of binding wires (dismantling & taking down) service connection etc and making, binding and service connection complete all as directed.

Material and labour Earthing complete with galvanised steel earth plate electrode 60×60cm×6mm thick, buried directly in ground (earth pit not less than 2.25 metres deep below ground level) with top edge of the plate not less'than 1.5 metres below normalground level, connected to but using galvanised iron strip 32×6mm as earthing lead 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 all as specified or indicated including testing on completion.Note :- The unit rate quoted shall also include for excavation, earth work in any type of soil, plain cement concrete 1:3:6 mix, Type C1 pit, 40mm thick RCC 1:2:4 mix type B1 cover reinforced with 8mm dia TMT bras @ 150mm C/C both ways, GI funnel with watering pipe, wire mesh, protection pipe, earth strip up to 7.50m long complete in addition to item No. 1 (a) to (e) of preamble (Notes) under sub heading earthing, specified in SSR Part II.

Supply and fix in replacement of MCCB 400 A ,4 pole ,36 KA (Ics =100% Icu) with adjustable thermal & fixed magnetic setting with bus bar spreader links for connecting both incoming and outgoing cables with suitable connections with suitable size of glands etc complete including testing & commissioning all as specified and as directed by the Engineer-in-Charge.