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| 1 | Specific Note:(a)One HS Electrician and one helper should be available for attendingday to day complaints on all days including/Sunday and holiday from 09.00 hrs to 15.00 hrs . (b) Indls should be in possession of all required tools for rectification of complaints .(c)Labour charges and cost of reqired tools is deemed to be included in the ratequoted rate .(d) Work shall be executed by the authorised service mechanic/Engineerhigh skilledas approved by AGE/GE,to fter satisfacterily completion of servicing of HT Equipments.If any fault occurs upto completion of contract peried should be attended by concerned rep within stripulated time frame without any failure , quoted rates is deemed to be included all such charges.(e) Item no 1 to 40If any above HT Equipment and connected itms become breakdown, the contractor shall loacate the problem/fault at site within 12 hours on intimation by JE/Engineer-In-Charge and ensure that the fault and rectified within 48 Hours , failing which an amount of Rs 200 /- per hour will be recovered as penal recovery from any payment due to contractor after expiry of 48 hours.) |
| 2 | M & L Testing, servicing and commissioning of 11 KV VCB and removing of breaker from existig HT panel and servicing to include cleaning, greasing,corbon removing with CRC/Jelly,Busbar cleaning,removing of sulphonification at Teminals/ busbars and checking the CT,PT working condition,fixing of insulated materials for Busbar and carried out calibration fro desired values (TMS,earth relay timing etc),complete testing and commissioning of 11 KV breaker capacity (As per existing Make / Model) (400 to 800 amp) for 11 KV VCB with panel Installed at different locations for proper functioning of the Installations completeall as specified and directed.( Each VCB will be servcied in one time in entire contract period.)Note:- (a)Visual Inspection(b)Checking of funtional locks, interlocks, signaling devices and auxiliary devices.(c)Checking of suitablility and correct operations of protections, control instruments and electrical connection of the circuit breaker operating mechanism.(d)Checking of Tripping Mechanism operation.(e)checking of Charging Limit Switch Operation(f) Checking with standard voltage on the auxiliary circuit.(g)Checking of with standard voltage at potential transformer.(h)Checking of Breaker ON/OFF operation manually and electrically.(j) Testing of vacuum Bottle integrity.(k)Relay testing.(l) Checking of theinsulation resistance of VCB.(m)Verification of wiring.(n) Any spare Partif found unserviceable will be measured & paid separately as supply & fix in repair. |
| 3 | M&L for Relay setting/Calibration of relay of HT VCB of 11 KV VCB complete all as specified directed. |
| 4 | All as per Item No2, but 33/11 KV SF6 Circuit Breaker by opening all connections and checking all gases and same should be refilled.All Gases rate shall be deeemed to be included in this rate only. |
| 5 | All as per Item No 2, but 33/11 KV MOCB Circuit Breaker.Note for Item No 2 to 5:-:i)Servicing equipment, moisture removing tools (Heating),cleaning tools,Insulated mtrl, for Busbars,Testing tools shall be deemed in quoted rates.ii)Testing report duly signed by authorised Technician and contractor will be submitted to Engr-in-charge after servicing. |
| 6 | M&L for 4 SqMM x 4 core copper conductor controlcable for connection with CTs & PTs and transformer (Bucholz Relay) with their respective panel for better and effective protection of installations complete as per existing size & type with connecting accessories completeall as specified and directed. |
| 7 | All as per item No 6, But 6.0 SQmm x 6 core copper conductor controle cable |
| 8 | S & F Pin type, porcelain, vitreous, white, brown or green insulator including one 19 mm dia galvanized mild steel spindle, two galvanized iron washers and one galvanized iron nut, 150mm height, 150mm dia with top groove suitable for 11000 volts grade after taking proper electric shut down from Engg in Charge and restored electric supply after completion of each job and maintaining their recordcomplete all as specified and directed. |
| 9 | S & F Disc type insulator, porcelain, vitreous 145mm high and 255mm dia ball and socket type, white, brown or green,two in seriesassembly for tension with tension GI clamps, Nuts, Bolts and washer etc suitable for working pressure 11000 volts grade after taking proper electric shut down from Engg in Charge and restored electric supply after completion of each job and maintaining their record complete all as specified and directed. |
| 10 | Dismantling cross arms of mild steelchannel or angle sections etc. complete and removing unserviceable materials fromsite(s) complete all as specified and directed. |
| 11 | M & L for Cross arms, bracings, supports, clamps and back plates fabricated from structural steel sections including nuts, bolts, washers, welding, bending cold or hot, drilling holes for bolts, in any shape or size as indicated or directed including two coats of aluminium paint over a coat of red oxide zinc chrome primer including preparation of surfaces complete all as specified & as directed. |
| 12 | Dismantling of ACSRor AAC conductor from poles of any size & capacity and unserviceable materials removing from site(s) complete all as specified and as directed |
| 13 | M&L for Aluminium conductor steel reinforced (ACSR) of size as per existingfor making connection at transformer, LAs, CT , PT, GOD,s & Drop out fuses etccomplete all as specified and directed. |
| 14 | M&L for Danger notice plate of 1.6mm thick mild steel sheet, vitreous enameled white in 11000 volts, with letters, figures and conventional skull and bones in signal red colour and fixed with MS clamps, bolts and nuts of approved size, for HT, 25 x 20 cm size complete all as specified and directed. |
| 15 | M&L forHT drop out expulsion fuse unit suitable for 100 Amps Capacity at 11 KV ,single pole (two post insulators per pole) with HT barrel fuse with holder including necessary connection to ACSR conductor of suitable size after taking down the old unserviceable drop out switches complete all as specified and as directed. |
| 16 | M&L for fixing and connection of lightening arrestersset ( Set of 03 nos), non linear 12 KV, metal oxide type, distribution class 5 KA rupturing capacityfor outdoor usewith conforming to IS : 15086 PT- I of 2001, completeand suitable for 11KV supply system including taking down the old unserviceable ones complete all as specified and as directed. |
| 17 | Supply, jointing and testing HT heat shrinkable jointing kit straight through type for 11000 Volt grade 3 core XLPE insulated Earthed cableoutdoor type complete with jointing material and accessories of size95 Sqmm including taking down old unserviceable jointing kit complete all as specified and directed. |
| 18 | Supply, jointing and testing HT cable end jointing kit for 11000 Volt grade cable cold shrinkable outdoor type complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable (Earthed) of size95Sqmm including taking down old unserviceable ones complete all as specified and directed. |
| 19 | Supply, jointing and testing HT cable end jointing kit for 11000 Volt grade cable cold shrinkable indoor type complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable (Earthed) of size95 Sqmm including taking down old unserviceable jointing kit complete all as specified and directed. |
| 20 | 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 |
| 21 | Supply and fixing HT Lightening arrestor ( Set of three)Station Class III, discharge capacity 65 Kilo Amps suitable for working voltage 33 KVwith connected accessories like nut bolts, washersetc and making connections properly to earthing systemsincluding taking down the old unserviceable ones completeall as specified and directed. |
| 22 | Earthing complete with copper plate 60×60cm ×3.15mm thick electrode 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 normal ground level, connected to 20×3mm copper strip as earthing leaddia by means of bolts, nuts, check nuts and washers of galvanised iron or steel incl 15 mm dia light grade GI pipe, 20 mm dia GI pipe (Medium grade) for watering, necessary earth work.PCC 1:3:6 type C1 concrete pit, RCC (1:1.5:3) type A1 pre-cast cover (54X54X5 cm) duly reinforced with and incl 8 mm dia TMT bar @ 150 mm c/c both ways, one lifting handle made of 8 mm dia TMT bar, embedded in pre-cast cover slab all as specified and shown in electrical plate No-3 of SSR Part-I including testing on completion complete all as specified and directed. |
| 23 | Earth continuity conductor or main earthing lead fixed to wall on battenor recess or chases or buried in ground or drawn in conduit/pipe orfixed to poles or any other indicated situation for loop earthing etc. asrequired20x3mm copper strip. |
| 24 | Supply and fix in replacement of galvanised iron strip of size 25 x4 mmas earth continuity conductor or main earth lead fixed to wall on batten or recess or chases/roof of bldg or buried in groud or drawn in conduit/pipe or fixed to pole or any other indicated situation for loop earthing etc above ground all as specified |
| 25 | Supply and fix in replacement of galvanised iron strip of size 32 x6 mmas earth continuity conductor or main earth lead fixed to wall on batten or recess or chases/roof of bldg or buried in groud or drawn in conduit/pipe or fixed to pole or any other indicated situation for loop earthing etc above ground all as specified. |
| 26 | Supply and fix in replacement of aluminiumstrip of size 25 x4 mmas earth continuity conductor or main earth lead fixed to wall on batten or recess or chases/roof of bldg or buried in groud or drawn in conduit/pipe or fixed to pole or any other indicated situation for loop earthing etc above ground all as specified. |
| 27 | M&L for preparation of old painted steel or iron external surfaces of transformer of capacity 1000-2000 KVA by scrapping with coir/ steel wire brush/scrapper emery paper, etc. and applying one coat of synthetic enamelpaint of colour as approved by Eng in Charge by using spray machine including writing of SM No, MES No etc. at prominent place/location of transformer with black synthetic enamel thick paint in white back ground complete all as specified and directed. [Note: Necessary shut down of power supply should be granted from the Engr-in-Charge by the contractor before proceeding the work, also electric supply should be restored as early as possible after completion of the work] |
| 28 | M&L for painting works on surfaces of items as given below of 33 KV MRS at Lichubari comprising of following equipment/machinery fitted at yard by preparation of steel and iron of old painted surfaces smooth and applyingone coat of synthetic enamel paint of existing colour and writingMES No, Name and capacityon plants of font size as ordered complete all as specified & directed by Engr-in-Charge.(i) HT Poles (Steel) for structures 11 meters long-12 no\"s(ii) Aluminium paint of Cross Arms/Channels of Approx Area 45 Sqm.(iii) Cement base weatherproof painting of RCC (single) poles-06 no\"s.(iv) Scraping/ cleaning the surfaces of capacitor bank\"spaneland applying one coat ofsynthetic enamel painting -Qty -03 nos.(v) Weather proof painting on platform of Power Transformer, Earth Pit & Platform of Capacitor bank of the yard/MRS approx -43 Sqm.(Vi) Removing all boulders from site and placed them after washing with suitable chemical as directed by Engr-in-charge. |
| 29 | Disconnecting and takingout,repairing existing HT 33 KV APFC for seviceable & reuse (One No-150 KVAR & Two No-75 KVAR ) (Make : Areva) from housing and cleaning,rubbing and overhauling the mechanical parts and making serviceable of local/remote electrical operation of the panel including Greasing,oiling,replacement of UNSV Trip coil,breaker charging motor,gear pinion,roller switch and reassembling the same after replacement as required including testing (IR Test,Continuity Test,Tripping Test of earth fault and over current of panel) complete all as specified and directed (Note :All Spares parts of panel will be Measured and paid sepratly under respective items of this schedule here in after as supply only) |
| 30 | M & L of 4 pole/2 pole structure of 11 KV Gang operated devices Servicing, greezing,tightning of connections of conductors/HT cables,nut bolt etc,insluators(pin/disc) checking and cleaning the surfaces with CRC,aligniment of tripole gang with existing pins,jumpering,replacement of GI pipe for gang operations handle(medium garde,appx lenght 06 mtr) including clamps etc complete all as specified and directed. |
| 31 | M & L of33 KV isolator/GODs Servicing, greasing,tightning of connections of conductors/HT cables,nut bolt etc,insluators(pin/disc) checking and cleaning the surfaces with CRC,aligniment of tripole gang with existing pins,jumpering,replacement of GI pipe for Isolator operations handleincluding clamps etc complete all as specified and directed.Note : Spare parts such as moving arm,operating pipe GI 32 mm,insulator base, MS channel 75x40x5 mm,fixed contact -copper flat (voltage 33 KV) shall be including in item quoted rates |
| 32 | Supply and fixing in replacement ofthe following spares for 11 KV VCB (400 Amp-800Amp) during servicing/overhaulingas per existing type and makeat any location/installation under Jorhat stn complete all as specified and directed .ISOLATING CONTACT - FLAT TYPE |
| 33 | VACUMM INTERRUPTERup to650 Amps |
| 34 | VACUMM INTERRUPTERup tocapacity 800 Amps |
| 35 | VCB Operating Mechanism (Mention Coil & Motor voltage) 650 to 800 Amp VCB |
| 36 | VCB Operating Mechanism (Mention Coil & Motor voltage) 400 to 650 Amp VCB |
| 37 | Closing Coil |
| 38 | Trip Coil |
| 39 | Spring Charging Motor |
| 40 | Closing Coil Box Assembly |
| 41 | Trip Coil Box Assembly |
| 42 | Motor Cut Off Lever Assembly |
| 43 | Epoxy body |
| 44 | Buffer For Spring |
| 45 | Over Ride Stop |
| 46 | Over Ride Stop Pin |
| 47 | 24 Pin Plug & Socket Assembly |
| 48 | Rack -In /Rack -Out Handle |
| 49 | Spring Charging Handle |
| 50 | Limit Switch Assembly |
| 51 | MI com digital relay as per existing Model/ make on VCBs or make existing |
| 52 | M&L for preparation of old painted steel or iron surfaces of transformer of 1000 KVA to 2000 KVA capacity by scrapping with steel wire brush/ emery paper etc and applying one coat of synthetic enamel paint smoke grey colourusing spray painting machine complete including writing of SM No. , MES No etc. all as directed with black synthetic enamel paint on white backgroundcomplete all as specified and directed.( Necessary shut down of power supply be obtained from Engr- in -Charge before the work and supply shall be restored immediately on completion of work. |
| 53 | Supply and fixing in replacement of breather assembly including silica gel of required quantity for 33/11 KV transformer of any capacitycomplete all as specified and directed |
| 54 | Supply, filling and topping up new transformer oil conforming to IS-335 of 1993 for filling/ topping up oil of transformer up to desired level complete all as directed. ( Dielectric strength of oil shall not be less than 40KV )complete all as specified and directed . |
| 55 | Dehydration and filtration of existing transformer oil of transformer at different location in site with filtration machine and heating system to get Di-electric strength of oil 40KV/cm minimum without disturbing the power supply system complete all as specified and as directed. |
| 56 | Supply fixing in replacement of 33 KV of copper tinned metal, having Capacity Tag on every fuse with rated HT fuses barrel type of capacity- 50 Amps and following IS, complete all as specified and directed. |
| 57 | All as per item no-56but capacity- 30 Amps , complete all as specified and directed. |
| 58 | Supply and fixing in replacement of 11 KV of copper tinned metal, having Capacity Tag on every fuse with rated HT fuses barrel type of capacity- 30 Amps , complete all as specified and directed. |
| 59 | Cutting, trimming and prunning of trees/tree branches/creepers/climbers of all around existing Sub Stn area up to fencing/boundry wall including cleaning the disturbed area beneath and removing the tree branches and debris from site and depositing Note: Measured each sub stn per month |
| 60 | Supply and spreading 40 mm size graded stone aggregate on ground of sub station, average spreading levelling complete, all as specified and directed by Engg-in-Charge Note: Measurement shall be carried out for nit finished area of work executed. |
