REPAIR SERVICING OF VCBS OCBS DISTRIBUTION TRANSFORMERS REPAIR REPLACEMENT OF HT CABLES AND EARTHING UNDER ITR CHANDIPUR

Amount

M&L for taking proper shut down, disconnecting incoming / out going cable, control cable from 11 KV OCB/VCB of any type and capacity upto 630 amps and carrying out complete servicing / overhauling, resetting of all electrical and mechanical parts for easy and proper operation, greasing of moving / revolving / sliding parts in VCB Panel, calibration of relays, meters incl thorough cleanining with air blower / vacuum cleaner, decarbonising & providing mineral jelly to all arcing contacts of the VCB panel, and serviceability check from local / remote control panel including replacement of unserviceable minor spare parts viz. nut / bolt / washer / connecting wire / insulation tape / sleeves etc complete including reassembling complete parts reconnecting incoming / outgoing cable, testing on load and all as specified and directed by Engr-in-Charge. Note- 1. Unserviceable items other than minor parts to be replaced will be meaured and paid seperately as supply only under revelent items in the schedule. However, cost of certain minor spares viz nut / bolt / washer / connecting wire / insulation tape / sleeves etc. if required shall deem to be included in the cost of repair of the item. 2. The spare parts to be replaced shall be of reputed brand / make and shall be of same type, design, specifications etc to match with the existing and as per the recommendation of OEM. 3. Complete servicing and calibration work shall be carried out by qualified and reputed service engineer only.

Supply only of following items for maintenance of OCB/VCB of 11 KV, 400/630 Amps capacity :-

Buffer set of 6 for VCB

Supply and use Monoplux for insulating for joint/tapping on busbar for VCB/OCB

Supply only HT spout bushing suitable for HT VCB, 11 KV

Tripping coil for OCB/VCB

Closing coil of OCB/VCB

Supply only PVC insulated unsheathed 1100 volt grade single core FRLSH 2.5 sq mm copper conductor

Supply and fixing of heat shrinkable Bus Bar sleeve of size 60 mm width and 10 mm thickness for HT 11 KV

Supply only HT Trolley bushing suitable for HT OCB 11 KV

Supply only HT spout bushing suitable for HT OCB 11 KV

Fuse with base NS6 , 6 AMP

Vaccum intrupter type VL-35409 C2 or as per sample

Isolating contact assembly 400/630 amps.

Fixed contact block 400/630 amps.

Moving contact block 400/630 amps.

Set of 6 Nos flexible connectors 400/630 amps.

Support insulator.

Bridge rectifier.

Motor cut off limit switch.

Auxilary switch (7 NO + 7 NC ).

Big gear assembly

Closing spring assembly

Space Heater 230 V AC

Motor and gear assembly 110 V AC/DC VMG -14 type

Supply only digital over current and earth fault relay operated on 85-275 volts Aux supply and sec current of 5 Amps including necessary connection initial calibration and testing complete all as directed by Engineer-in-Charge.Make: Ashida/GE/ECE

Disconnection and taking out of unserviceable supervision relay any type from existing HT VCB panel in any position and supplying, installation, commissioning & testing of electronic type Product cod trip supervision relay 24 V to 110 V DC. Make - Cromption Model No. TH 30

S&F Digital type Volt meter 0-15KV, PT operated 110 Volt input complete all as specified and directed. Make - AE/ Nippen

S&F Digital type Ampmeter CT operated, 5 Amp input complete all as specified and directed. Make - AE/ Nippen

M & L in replacement of wiring of IDMT relay/CT/trip relay complete with 2.5 sqmm copper flexible conductor cable including their numbering and make system serviceable complete testing of IDMT relay complete all as specified and directed.

Disconnecting and taking out existing unserviceable current transformer of any description and in any position and Supply, installation, commissioning and testing of cast resin type 11 KV current transformer having ratio of 100+50/5 A having protection core class 5P10, burden of 15 VA and metering core class 1.0 and burden of 15 VA breaking cap of 13.1 KV for 1.0 second all as specified and directed. (Make :- Jyoti /Skipper /Kappa/ Alstom/ Crompton greaves.)

Disconnecting and taking out existing unserviceable current transformer of any description and in any position and Supply, installation, commissioning and testing of cast resin type 11 KV current transformer having ratio of 200+100/5 A having protection core class 5P10, burden of 15 VA and metering core class 1.0 and burden of 15 VA breaking cap of 13.1 KV for 1.0 second all as specified and directed. (Make :- Jyoti /Skipper /Kappa/ Alstom/ Crompton greaves.)

M&L for MS cross arm , bracing supports , clamps and back plate fabricated from structural steel sections holding nut,bolts and washers including necessary welding , bending cold or hot drilling holes for bolts in any shape or size as indicated or directed and inclusive two coat of synethetic enamel paint over a coat of red oxide primer complete including taking down old unserviceable MS cross arm complete all as directed.

M&L for stay assembly comprising of 16mm dia, 1.80 meter long galvanized stay rod , having 7 / 3.15mm GI stay wire stranded and 230mm X 230mm X 6mm thick stay plate, complete all as shown on electrical plate No 1 of SSR, Part-I 2009 with and including all necessary fittings/accessories like loop type insulator, stay clamps complete all as specified and directed by Engineer-in-Charge including taking down and dismantling old unserviceable stay assembly.

M&L for PCC type B1 (1:2:4) with 20 mm gradded stone aggregate for foundation poles, panel board etc complete all as specified and directed.

M&L for PCC typeC1 (1:3:6) with 20 mm gradded stone aggregate for foundation poles, panel board etc complete all as specified and directed.

M&L for PCC type D2 (1:4:8) with 40 mm gradded stone aggregate for foundation poles, panel board etc complete all as specified and directed.

Supply & fix jumper of two pole/four pole structure with aluminium conductor steel reinforced of any size on existing HT two pole/four pole structure using new aluminium binding wire including reconnecting all connections by means of suitable size lugs/thimbles including taking down old aluminium conductor jumper complete all as directed by Engr-in-Charge.

Supply, fixing , commissioning and testing in replacement of outdoor type , 11 KV gang operated switch with drop out fuse assay complete of current rating upto 400 Amps 4 insulator Horizontal type triple pole each pole consisting of galvanized steel based HT insulator as per IS non ferrous knife and spring loaded contacts, arching horns of adequate section to break magnetizing current of the transformers horizontol Gi of adequate length for phase separation , adequate length of GI pipe operation from ground level and operating handle with locking arrangement complete in both OFF and ON positions. All ferrous parts hot dripped galvanized and non ferrous heavily tinned to with stand weather suitable for Horizontal mounting on existing structure including taking out old us GOD complete all as specified and directed.Make:- Jaipuria/BHEL/Pactil

Supplying ,fixing danger notice board of 1.6 mm thick mild steel sheet , viterous enamelled white , with letters , figures and conventional skull and bones in signal red colour and fixed with MS clamps , bolts for HT 25X20 cm size complete all as specified and directed.

M & L for painting of two pole/four pole structur including cross arms,chanel etc complete structure after scraping old paint with two coats synthetic aluminium paint after applying one coat of zinc oxide primer complete all as directed by Engr-in-Charge

M & L for painting of OCB's from inside and outside by applying two coats of synthetic enamel paint (Smoke grey) after scraping and removing old paint and writing SM/MES No., Incoming and outgoing details complete all as specified and directed by Engr in charge

M & L for calibration of earth fault relay ,and over load relay with accuracy of OCB/VCB and setting and testing the tripping system as directed by Engr-in-charge and servicing of OCB/VCB , cleaning the rust and dust of metal part and applying lubrication to all moving parts complete all as specified and directed by Engr-in-charge

M & L for cable jointing kit for 11 KV (Earthed) grade cable for indoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable size 95 sqmm Make : Denson/Raychem/M Seal

M & L for cable jointing kit for 11 KV (Earthed) grade cable for outdoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable size 95 sqmm Make : Denson/Raychem/M Seal

M & L for replacement of cable jointing kit for 11 KV (Earthed) grade cable for Straight through Epoxy heat shrink type joint complete with jointing material accessories suitable for 3 core XLPE armoured aluminium conductor cable size 95 Sqmm Make : Denson/Raychem/M Seal Note : Earth work shall be paid and measured under respective item

Supply only insulation oil in Transformer Oil tank having Di-electric strength not less than 60 KV at 2.5 mm electrode gap for 60 sec confirming to IS-335 and ISI marked all as spsecified and directed by Engineer-in-Charge. Make: POWER/GULF

Supply and filling in repair/replacement of silica gel in existing breather assembly Make : MB Supplier/Pooja industries/Goyal electric works

Supply & fixing in repair/replacement of breather for 400/500 KVA Transformer Make : MB Supplier/Pooja industries/Goyal electric works

Supply & fixing in repair/replacement of breather for 200/250 KVA Transformer Make : MB Supplier/Pooja industries/Goyal electric works

S/F in replacement of HT bushing with stud, brass terminal 6 Nos.brass nuts and washers, gaskets, insulator etc suitable for (11/0.433 KV) 50 KVA TO 630 KVA Transformer complete in all respect & all specified. Make : Neelachal Transformers Pvt Ltd/Power & Distribution transformer

Supply and fix Temperature gauge suitable for transformer of capacity above 100 KVA and upto 500 KVA complete all as specified and as directed.

M&L for painting in two coats with first quality of synthetic enamelled paint over a coat of red oxide primer after complete removal of existing finish to step up / step down transformer of capacity 50 to 500KVA incl writing of its corrosponding MES No / Sl No / maintenance date etc complete all as spd and as directed by Engr- in- Charge. (Note: Proper shutdown including dismantling of primary / secondary connections and refixing the same to be ensured)

S/F in replacement of .LT bushing with stud, brass terminal 6 Nos.brass nuts and washers, gaskets, insulator etc suitable for 50 KVA TO 300 KVA Transformer complete in all respect & all specified. Make : Neelachal Transformers Pvt Ltd/Power & Distribution transformer

All as per item No. 31 but suitable for transformer of capacity 400 KVA to 630 kva

M&L for pin type, porceline, vitreous, brown insulator including one Galvanised mild steel spindle, two galvanised iron washers and one galvanised iron nut of 150 mm height, 150 mm dia for 11000 volt grade including taking down old insulator all as directed by Engineer-in-Charge Make : JAIPURIA/RASHTRIYA/oblum

M&L for lightning arresters suitable voltage 11000 volts expulsion type complete with all fittings, transmission class, discharge capacity 65 kilo amp. Make : JAIPURIA/RASHTRIYA/oblum/Alstom

Disconnection and taking out unserviceable distribution Transformer of capacity 250 KVA 11/0.415 KV from sub station No.- I and MRS for the following phase of worksspecified and directed by Engineer-in-charge. Note :- (i) Cost of Supply and fixing of nuts, bolts, washers fevicol sleeves cotton tapes etc shall be deemed to be included in quoted rate. (ii) Necessary test of Transformer shall be carried out by factory as per is in presence of MES representative and Test report shall be submitted to the department. (iii) All item above are having tentative quantity and specification and may change as per ground requirment.

Dismantling the Transformer of 400/600 KVA, 11/0.415 KVA capacity and transporting the Transformer from Sub station to workshop and draining out oil and storing aside lifting of core and winding assembly, further dismantling and segregation of HT/LT serviceable and unserviceable winding, taking out old worn out insulator, separators set for strip, inspection and further necessary repair and carrying out cleaning of complete transformer, removing of all worn out gasket/Jointing materials, oil seals. Segregation of all serviceable spares/ accessories/ components for reuse and replacement of unserviceable spares/accessories/ components with new materials and reassembling and transporting the transformer to sub stn after carrying out repair including dehydration and testing and commissioning complete all as specified and directed by Engineer-in-charge.

Materials for HT/LT winding of Transformer super enameled copper wire/strip of appropriate cross section and turn as per existing all as directed by Engineer-in-charge

Materials for re-insulation by wrapping with new insulation paper after taking down old burnt insulation including assembly and connection for 200/250 KVA, 11/0.433 KV Transformer all as specified and directed by Engineer-in-charge.

Carrying out replacement of all Gasket using rubber cork sheet of 6.0 mm thick including providing gasket cement adhesive all as specified and directed by Engineer-in-charge.

M&L for Filtration and Dehydration of transformer oil of Transformers / OCBs / Oil switches at different location of ITR Chandipur with filtration cum dehydration machine to achieve desired level of di electric strength of transformer oil including testing complete as specified and all as directed by engineer in charge. Note- The quoted rate shall deem to incl for the cost of centrifuging the transformer oil by means of electrical operated centrifuging machine . (ii) The contrator shall test the di electric strength of oil of each transformer before dehydration & filtration and after completion of dehydration and filtration process he shall submit record of the same. Each sample of oil shall be tested with a transformer oil test machine at site in presence of concerned JE/ Engr- in- Charge. The contractor will have to arrange correctly calibrated Transformer Oil Test machine. for this purpose. (iii) Old unserviceable oil obtained if any shall be deposited in the MES store complete all as directed by Engr- in- Charge .

Disconnecting the transformer indoor out door from HT / LT side at site dismantling carefully and removing primary and secondary terminals, top cover, conservator tank, neutral earth strip and draining out transformer oil to the required level and storing carefully in cleaned containers, cleaning of terminals, inspection of core, supply and replacing 5 mm thick rubberised cork sheet gasket for tank top cover and replacement of gaskets/oil seal of HT/LT side to arrest the leakage of transformer oil complete reassembling the complete dismantled items, reconnecting the HT/ LT supply cable ends at the site for the following transformers complete all as directed by engineer in charge.

Transformer capacity 125 KVA to 250 KVA

Transformer capacity 300KVA to 400 KVA

Transformer capacity 500KVA to 630 KVA

Material and Labors for shifting of transformer from one area to another area of ITR and placing in position including installation testing and commissoning as per site requirement complete all as specified and directed by Engr-in-charge .

M& L for Earthing complete with galvanised steel earth plate eletcrode of size 60x60cm x 6.0 mm thick electrode as buried directly in ground (earth pit not less than 3mtr below normal ground level connected to GI earth strip 32mm x 6mm thick by means of bolts nuts,check nuts and washers at complete etc all as shown in electrical plate No-3 of SSR part-1 connected to earthing test point all as specified or indicated including PCC pit in PCC(1:3:6) type CI cast iron frame 50mm thick pre cast RCC (1:1½ :3) nominal mix cover slab reinforced with 8mm dia mild steel bar including necessary excavation earth work in soft/loose soil and disposal of spoil to a distance n.exc 50mtr and funnel with watering pipe wire mesh GI protection pipe 40mm bore including testing complete including taking out old us earthing material all as specified and directed by Engineer-in-Charge. (Note - Earthing lead and GI protection pipe beyond 7.5 mtr shall be measured and paid deparately)

Disconnecting & taking out old existing unserviceable HT cable of size 3 core 95 Sqmm ,in any position from trench/duct, cleaning the outer surface of cable, examining cable and joints for defects and ascertaining suitability of cable for reuse, cutting out the defective portion of cable/joint, including taking out old serviceble PCC cable covers or GI pipe of any description for remove/re-use all as directed by the Engineer –in-Charge.

Supply and laying connecting and testing XLPE insulated screened, PVC bedded, galvanized steel strip or wire armoured heavy duty electric power cable with aluminium conductor 11000V grade cross sectional area 95 Sq mm 3 core complete all as specified and directed. Make : ICL/Gloster/Havells.

Re- laying connecting and testing XLPE insulated screened, PVC bedded, galvanized steel strip or wire armoured heavy duty electric power cable with aluminium conductor 11000V grade cross sectional area 95 Sq mm 3 core complete all as specified and directed. (Note item retreived from Sl No. 41 here-in above)

Excavation in trenches not exceeding 1.5 m wide and n.exc. 1.5 m deep in depth in soft/loose soil and getting out

M & L for cutting the existing concrete/bituminious road surface width n.exe 30 cm and making good the surface with 100 mm thick PCC 1:2:4 type B1 using 20mm graded stone aggregate finished even and fair complete over 100mm thick PCC 1:4:8 type D2 using 40mm stone sggregate over consolidated/rammed earth surface all as specified and directed

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exceeding 25 cm in soft/loose soil

Removing excavated material n.exc. 50m and depositing where directed at a level n.exc. 1.5 m above the starting point.

Supply & filling fine river sand for cushioning of cable including spreading, levelling, complete all as specified and directed by Engr-in-charge.

Supply and laying un-reinforced precast conrete cable cover suitable for 11000 volts grade HT UG cable laid the length of cover prependicular to the direction of cable of class HV type 1 flat size 300 mm x 180 mm x 40 mm all as directed.

-ditto- as per item No. 48 Above but old retrieved pcc cable covers obtained from item Sl No. 43

M&L GI pipe light grade with all fitting laid in trenches and under road/floor/culverts along with pole etc 80mm bore. Make : Tata/Jindal/Surya

Material and labour for checking and finding out pin point location of fault in HT 11 KV underground cable with the help of fault locating mobile machine complete all as directed. Note :- (i) Rate for rent of the fault locating mobile machine, charges for operator, engineer, electricians etc are deemed to be included in the quoted rate. (ii) Fault Should be located and repaired within 12 hrs.). (iii) Excavation, earth work and jointing material will be measured and paid separately under relevant items of schedule

Supply, fixing and testing dry type 11 KV/ 3/110V/ 3 potential transformer (PT) suitable for 11 KV , 3 phase , 50 Hz , class 1A, 50 VA complete suitable for VCB 11 KV including taking out old unserviceable PT any type

S&F in repair Power pack of suitable capacity contained maintenance free battery and charger to provide auxilary power supply to the VCB all as per OEM recommendation or directed by EIC.

RAJENDRA PRASAD

ELECTRO COMMERCIAL CO

Shree Mahavir Associates

M/S T.N.CONSTRUCTION

chauhan syndicate

KRISHNA ENTERPRISES

Sagar Electricals