COMPREHENSIVE MAINT OF HT DISTRIBUTION SYSTEM INCLUDING REPAIR TO GANG OPERATING DEVICE AT NAMKUM AND KHOJATOLI AREA AND HT TRIPPING SYSTEM,DEHYDRATION OF TRANSFORMER OIL AND MAINTENANCE OF HT DISTRIBUTION NETWORK AT NAMKUM LPH AREA UNDER GE RANCHI.

Amount

Excavation in trenches not exceeding 1.5mtr wide & not exceeding 1.5 mtr in depth for laying cable, hard/loose soil complete all as directed.

Returning, filling in trenches with soil, including spreding, leveling, watering & well ramming, in layers not exceeding 25 cm each complete

Removing surplus excavated material (soil) to distance not exceeding 50 Mtr & depositing where directed at level not exceeding 1.5 mtr above the starting point.

M&L for Sand filling in cable trenches for cable protection with clean dry sand unwashed including gently put in trench

S&F for old size brick well burnt, laid flat, for cable protection complete all as specified and directed.

Dismantling cross-arms of MS Channel or angle section etc, complete.

S&F in replacement steel work such as in cross arms angle iron breaching supports, clamps and back plate fabricated from MS section confirming to grade FE- 410-0 or Fe- 310-0 including nuts, bolts, washers bending cold or hot drilling holes bolts in any shape or size as indicated or directed included of one prime coat, one under coat & one finishing coat of aluminium paint and all as specified and directed.

M&L for pin type polymer insulator including one galvanised mild steel spindle, two galvanised iron washers and one galvanised iron nut , for 11000 volts grade.

M&L for Disc type polymer insulator of size 145 mm height 255 mm dia incl galvanized mild strip ,washer, nut ,bolt etc suitable for 11000 volt HT Line all as specified and directed at site.

Taking down HT/ PCC pole including exacavation, earth work and demolation of concrete etc, and complete as specified and directed by Engr -in- Charge.

M&L for steel tubular swaged poles complete with cast iron base plate finaltaper plug, bolts, nuts & screws as specified type 41 SP-55, 11 mtr long including excavation & earth work, PCC works with 1:4:8 type D2 of size .6mmX0.6 X1.5m for foundation and coping with PCC 1:2:4 type B1 of size 45 cm dia and 45 cm hight etc and painting to pole with aluminium paint and black bituminous paint as specified in SSR-2009 Part-I including writing numbers and making 30 cm strips with alternative layers black & yllow paint upto 1.5 mtr height above the coping complete all as specified and directed by Engr-in- Charge.

Re-stringing the ACSR conductor including binding with suitable size of aluminium conductor and disconnection of service wire/ cable and re-connection the same and proper jumpering the jumper connections complete all as specified and directed by Engr- in Charge.

S&F in replacement XLPE insulated screen, PVC badded galvanized steel strip on wire armoured electric, power cables heavy duty with aluminium conductor 11 KV/ 6.35 KV grade, earthed system cross sectional area 95 Sq mm X 3 core laid in trenches or passing through pipe or fixed to wall/poles complete all as specified and directed Make: CCI/ICC/ Havells/Polycab/ Gloster/ICL.

S&F for GI stay assembly set comprising with & including 14 mm dia 400 mm GI stay boy, 20 mm dia 2150 mm long stay rod, 300 mm X300mm X 6 mm stay plate, thumble GI stay wire 7/8 SWG of required length , all as shown in Electrical Plate No1 of MES schedule Part-1 , with & including all necessary excavation and earth work, PCC, etc complete.

Dismantling ACSR conductor from HT line complete as directed by Engineer-in- Charge.

M&L for stringing and fixing of aluminium conductor steel re-inforced (ACSR) on LT poles including binding wire complete all as specified and directed at site of any type ACSR conductor and all as specifed and directed.Note ACSR condutor will issued by GE office.

S&F cable jointing kit for 11 KV grade cable for straight through termination heat shrink type jointing complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95 sq mm all as specified and directed

S&F cable jointing kit for 11 KV grade cable for out door termination heat shrink type jointing complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95 sq mm all as specified and directed

M & L Earthing complete with galvanized GI earth plate electrode of size 600 x 600 x 6.00 mm ,buried directly in ground (earth pit not less than 2.25 mtrs below normal ground level)with top edge of earth plate not less than 1.5 mtr below normal ground level, connected to galvanized earth lead wire 4.0 mm dia by means of bolts ,nuts ,check nuts of galvanized iron or steel including excavation and earth work in any type of soil, charcoal salt filling 15 cm around the earth plate as shown in electrical plate no 3 of SSR part-I 2004, 20 mm bore, GI watering pipe medium grade 1.50 mtr long & GI protection pipe light grade 15 mm dia from earth pit to main board including making pit with PCC 1:3:6 type C1 and pre cast RCC cover 40 mm thick, reinforced with 8mm dia deformed bars @ 100 mm c/c both ways with lifting handles and funnel etc including testing as directed.

Supply and install HT 11 KV outdoor type polymer gang operated air break switch suitable for horzontal or vertical mounting fixed type complete with 9 insulators of rating upto 400Amps all as specified anddirected.

S&F drop out fuse assy 11 KV with 6 Nos Polymer Post insulators and channels etc triple pole complete all as specified and directed.

M&L for GI tube light grade for passing through cables under for floor along the pole of 100 mm bore and fixed to the poles/ walls with suitable size of MS clamps and nut and bolts/washers etc including taking down old GI tubing complete all as specified and directed.

S&F lightening arrestor non linear, pole type MCOV 11 KV discharge capacity 65 KA, with all fittings suitable for 11 KV electric working pressure including strap, bolts, nuts and washers etc complete all as specified and as directed.

Complete testing of transformer consisting of IR value of both HT&LT side earth resistance of all the four earths, dielectric strength of transformer oil etc complete all specified and directed.

Disconnecting and Strip opening transformer 63 KVA to 100 KVA, 11 KV/433 volts indoor /outdoor type of any make after unscrewing nuts /bolts, screws and connected accessories such as breather conservator tank, temperature gauge for replacement of defective HT /LT coils ,defective parts (payment of defective parts to be replaced shall be measured and paid separately), reassembling after replacing the defective coils /defective parts and replacing the top gasket sheet and other insulating packing materials and testing complete all as specified and directed including taking out, handling of distribution transformer of any size any capacity to workshop & back to the installation. (Note :- The reassembling element covers the assembling of parts not to be changed whereas for the rest it shall be the part of the item being replaced.) (Cost of transportation of transformer is deemed to be included in rate)

Description same as per srl item No. 25 here-in-before but 150 KVA to 500 KVA complete all as specified and directed.

M&L rewinding of transformer of any capacity HT/LT coils using the same gauge of super enameled copper winding wire and replacing the old paper tape insulation, necessary insulation packing’s/ paper insulation etc with replacement of crap tape, prosen sheet, silphase brazing rod, HT block, LT block etc are included, complete all as specified and as directed. (Note –The coil replaced shall have same number of turns, gauge, insulation value matching as per manufacture’s design. Measurement shall be made of winding wire consumed.)

Supply and replacement HT 11 KV Bushing Insulator suitable for indoor / outdoor type 25 to 500 KVA transformer complete with brass stud, 3 Nos brass nuts, brass cup/washers and packing gasket complete all as specified and directed.

Complete testing of 33KV 3.15 MVA transformer consisting of IR value of both HT&LT side earth resistance of all the four earths, dielectric strength of transformer oil etc complete routin test all specified and as directed.

Supply and replacement brass stud for LT side suitable for transformers 100 to 500 KVA complete all as specified and as directed.

Supply and replacement temperature gauge 0-100 degree Celsius range circular type complete all as specified and directed.

Supply and fill up transformer oil as in topping up/refilling of transformer having dielectric strength not less than 50 KV at 2.5 mm gap conforming to IS-335 by heating up and after filtration complete all as specified and directed.

ON LINE dehydration/filtration with machine (not small filtration portable machine) complete all as directed of transformer pole mounted or platform mounted of any capacity complete all as specified and directed.

OFF LINE dehydration/filtration with Ultra High Vaccum machine (not small filtration portable machine) complete all as directed transformer platform mounted of 33/11KV transformer 3.15 MVA capacity after filtration dielectric strength not less than 60 KV at 2.5 complete all as specified and directed.

Supply and replacement transformer breather complete with silcagel for capacity 50 to 500 KVA transformer complete all as specified and directed.

Supply and replacement transformer breather complete with silcagel for capacity 3.15 MVA transformer complete all as specified and directed.

M & L for Painting of HT steel pole with cross arms, clamp of any length and shape for HT overhead line with single coat of aluminium paint including preparation of the existing surface including marking pole numbers in a Black colour numbering with synthetic enamelled paint and strip marking of THREE BLACK AND THREE YELLOW alternatively from bottom of pole to 90 CM height and providng three nos of Yellow & Black at suitable height complete all as specified and directed.

Supply & fix for replacement of current Transformer , CT : Ratio : 200-100/ 5-5A. CORE - 1 :15 VA CLASS : 1. CORE- 2 :15VA CLASS 5P10. STC : 13:1KA 1 Sec. ILV : 12KV/28/75 KVP. SYSTEM VOLTAGE : 12KV. TYPE ; EPOXY RESIN CAST As Per IS -2705 .IEC- 60044 , suitable for Indoor VCB including proper Connection to BusBar and connecting with electric system such as Control Panel Complete all as directed Shown by Engr-in-Charge. (Make- CG, Kappa, Laxmi or equivalent).

Supply & fix for replacement of current Transformer , CT : Ratio : 100-50/ 5-5A. CORE - 1 :15 VA CLASS : 1. CORE- 2 :15VA CLASS 5P10. STC : 13:1KA 1 Sec. ILV : 12KV/28/75 KVP. SYSTEM VOLTAGE : 12KV. TYPE ; EPOXY RESIN CAST As Per IS -2705 .IEC- 60044 , suitable for Indoor VCB including proper Connection to BusBar and connecting with electric system such as Control Panel Complete all as directed Shown by Engr-in-Charge. (Make- CG, Kappa, Laxmi or equivalent).

M & L for Servicing / Calibration to 33 KV HT VCB panel ( Incomer panel No : 1) complete including the following : switching off electric supply, Checking of mechanical system for proper functioning, replacing closing buffer, triping buffer (VMX type), V I connection gap check, motor coil resistance check, closing coil resistance check, spring charging cut off switch check, aux switch check, NO-NC states check, trip coil resistance check, testing details, timing test, oil value test, breaker timing test, connector resistance test, IR value test, HV test, mechanical and electrical mechanism check, counter reading check, shock observer check, pre close/ post close circuit check, test and service position limit switch check, breaker drive screw operation check, trip coil assemble operation check, mechanical latch . Cleaning & servicing the fixed/ moving contact & blowing out dust and applying the proper lubrication/ greasing and reassembling the VCB including connection to HT panel complete including replacement of following spares and to be replaced where reqd all as directed, Unit rate include two preventive maintenance and one break down during the entire period of work complete all as directed. (a) Control Fuse with link 32 A, - 12 Nos (b) Trip Netural close switch, - 01 No (c) Hooter 30 V DC - 01 No (d) Multifunction energy meter with KHW, KVAH, PF, HZ, KW etc loding - 01 No (e) Indicating LED lamp - 03 Nos Note:- (i) Maitenance of all HT VCB will be carried out as per maintenance schedule (ii) Testing of above job to be carried out by engineers of authorised dealer/service centre.

Supply, installation, testing and commissioning in replacement indoor type cubicle panel board suitable for 3 phase 4 wire 415 V, 50 Hz and factor fabricated in an approved factory having modern fabrication process powder coating make it dust/vermin proof outer shall be made out of 3 mm thick CRCA sheet factory fabricated door system lockable/open able by keys from both sides having chromium plated 19mm dia fancy locks, louvers & air vent gasket for natural flow outer shell completely vermin proof Inner shell shall be made out of 1.6mm thick CRCA sheet duly compartmentalized. for 33/11 KV transformer annunciator panel i. Trip Alarm, ii. overload alarm. iii. WTI alarm, iv. OTI alarm v. 3 phase earth fault alarm, vi. over current alarm, with hooter complete all as specified and as directed.

M & L for Servicing / Calibration to 11 KV HT VCB panel complete including the following : switching off electric supply, Checking of mechanical system for proper functioning, replacing closing buffer, triping buffer (VMX type), V I connection gap check, motor coil resistance check, closing coil resistance check, spring charging cut off switch check, aux switch check, NO-NC states check, trip coil resistance check, testing details, timing test, oil value test, breaker timing test, connector resistance test, IR value test, HV test, mechanical and electrical mechanism check, counter reading check, shock observer check, pre close/ post close circuit check, test and service position limit switch check, breaker drive screw operation check, trip coil assemble operation check, mechanical latch . Cleaning & servicing the fixed/ moving contact & blowing out dust and applying the proper lubrication/ greasing and reassembling the VCB including connection to HT panel complete including replacement of following spares and to be replaced where reqd all as directed, Unit rate include two preventive maintenance and one break down during the entire period of work complete all as directed. (a) Control Fuse with link 32 A, - 12 Nos (b) Trip Netural close switch, - 01 No (c) Hooter 30 V DC - 01 No (d) Multifunction energy meter with KHW, KVAH, PF, HZ, KW etc loding - 01 No (e) Indicating LED lamp - 03 Nos Note:- (i) Maitenance of all HT VCB will be carried out as per maintenance schedule (ii) Testing of above job to be carried out by engineers of authorised dealer/service centre.

Supplying, installing, in replacement HRC fuses 16 Amps capacity complete all as specified and as directed. Make:- HPL, AE

Supplying, installing, in replacement of HV rectifire operating Aux 30/110 volt AC/DC with NO NC complete all as specified and as directed. Make:- AREVA

Supplying and installing in replacement, testing and commissioning plug in trip circuit supervision relay suitable for operation on 110 volts, as per sample complete all as specified and as directed. Make OEM

Supplying, installing, in replacement of 220 Volt AC/ DC Motor 500 Watt complete all as specified and as directed. Make AREVA, SCHNEIDER

Supplying, installing, in replacement of Hooter complete all as specified and as directed.

Supplying, installing, in replacement of LED indicator lamp complete all as specified and as directed. Make:- HPL, AE

Supplying, installing, in replacement of closing coil complete all as specified and as directed. Make . AREVA, SCHNEIDER

Supplying, installing, in replacement of connector complete all as specified and as directed.

Supplying, installing, in replacement of heater with thermostate complete all as specified and as directed. Make . AREVA, SCHNEIDER

S&Fin replacement of Feeder protection relay with 3 Over current and one earth fault protection type Make : Schnider or equivalant .with indications of trip, alarm, Warning and Healthy .

M&L for earthing with super power galvanized steel earth electrode GI pipe medium grade of size 300mm x 110mm dia filled with chemicals buried directly in ground by means of drilling holes and connected to galvanized earth lead wire of size 4 mm dia (32x6)mm GI earth strip by means of nuts, bolts, checks but and washers made of galvanized iron or steel all as shown in electrical plate No. 3 of SSR Part-I (2009) connected to earth dolly of main DB/main switch all as specified and directed, including construction of earth camber with PCC (1:3:6) type causing stone aggregate with MS cover 10 mm thick of size (300x300) mm as directed, 20 mm bore GI watering pipe (medium grade) and earth protected by galvanized iron pipe 40 mm bore (light grade) and earth wire mesh, funnel, charcoal and salt in alternate layers including necessary excavation and earth work in soft / loose or any type of soil and dismantling of the existing rusted / deteriorated one complete all as specified. Note:- Earth wire up to 7.5 meter connected to earth point shall be deemed to be included in unit rate.

M/S Akash Enterprises