REPAIR MAINTENANCE OF TRANSFORMER, VCBs, REPLACEMENT OF DAMAGED HT UG CABLES, HT CONDUCTOR AND CONNECTING ACCESSORIES UNDER AOR OF GE (S) MAMUN

Amount

Disconnecting all the electrical connections from H.T. and L.T. side of unserviceable transformer of capacity upto and including 100 KVA i.e. Jumpers/cable from the cable end box or bushings & earthing terminal of the transformers including taking down, loading, unloading of transformer & transportation by vehicle from substation to the repairing workshop & tranportation from workshop to same substation or any other substation / including reinstallation, commissioning and testing after repair complete all as specified and directed Note : [Repair to transformer i.e rewinding, repair/replacement of spares shall be measured & paid seperately under relevent items of BOQ]

All as Per Srl item No 1.00 here-in-above but capacity of transformer above 100KVA upto 315 KVA complete all as specified and directed by Engineer-in-Charge.

All as Per Srl item No 1.00 here-in-above but capacity of transformer above 315KVA upto 500 KVA complete all as specified and directed by Engineer-in-Charge.

Opening the transformer cover of capacity upto & incl 100 KVA along with the conservator by removing the nuts bolts then after removing the internal H.T & L.T connections by taking them out by removing studs, bushings, taking out the core-winding assembly out of the tank, removing out burnt HV and LV windings from the core assembly, cleaning of core assembly with CTC including necessary repairs for the unserviceable transformers having ratio 11 / 0.433 KV, draining & decanting of burnt transformer oil and cleaning of sludge deposited in the tank with CTC for the transformers. Rewinding of HV and LV coils with suitable size super enamelled copper wire/ strip (As Existing) having suitable class insulation material. Heating of core winding assembly in hot chamber for 48 hours and removing all the moisture present in it, removal of leakage of tank if any by welding, refilling transformer oil to tank after putting the core-winding assembly into the tank, reassembling and making the internal H.T & L.T connections by fixing the studs, bushing, fitting the top cover by replacing cork sheet gasket along with conservator, testing the transformer in the workshop duly filled with oil complete all as specified and directed. Note : Items required for repairs including copper wire required for rewinding of transformer shall be measured and paid separately under relevant item of this schedule. Transformer oil with die electric strength not less than 45 KV either new or filtered shall be filled and shall be measured and paid seperately under respective item.

All as Per Srl item No 2.00 above but of capacity above 100 KVA to 200 KVA ( incl. 200 KVA) complete all as specified & directed

All as Per Srl item No 2.00 above but of capacity above 200 KVA to 315 KVA ( incl. 315 KVA) complete all as specified & directed

All as Per Srl item No 2.00 above but of capacity above 315 KVA to 500 KVA ( incl. 500 KVA) complete all as specified & directed

Supply and replacement of super enamelled copper winding wire/ strip of any size for H.T. coils of transformers complete all as specified & directed

Supply and replacement of super enamelled aluminium winding wire/ strip of any size for H.T. coils of transformers complete all as specified & directed

Supply and replacment copper winding strip of any size for L.T. coils of transformers including providing insulation as required complete all as specified & directed

Supply and replacement of aluminium winding strip of any size for L.T. coils of transformers including providing insulation as required complete all as specified & directed

Reconditioning of LT coil of aluminium / copper wound transformer by turning the old paper insulations, straightening the entire LT Strip providing new paper insulations of superior quality and making coil of suitable design as original complete all as specified and directed

Supply & fixing LT bushings 433 V of suitable size for outdoor/ indoor type transformer of the capacity Upto 100KVA complete all as specified and directed

All as Per Srl item No 8.00 here in above but transformer capacity above100 KVA upto 200 KVA

All as Per Srl item No 8.00 here in above but transformer capacity above 200KVA upto 315KVA

All as Per Srl item No 8.00 here in above but transformer capacity above 315KVA upto 500KVA

Supply & fixing HT bushings 11KV of suitable size for outdoor type transformer upto 100KVA complete all as specified and directed

All as Per Srl item No 9.00 here in above but transformer capacity above100 KVA upto 200 KVA

All as Per Srl item No 9.00 here in above but transformer capacity above 200KVA upto 315KVA

All as Per Srl item No 9.00 here in above but transformer capacity above 315KVA upto 500KVA

Supply & fixing HT bushings 11KV of suitable size for indoor type transformer upto 100KVA complete all as specified and directed

All as Per Srl item No 10.00 here in above but transformer capacity above100 KVA upto 200 KVA

All as Per Srl item No 10.00 here in above but transformer capacity above 200KVA upto 315KVA

All as Per Srl item No 10.00 here in above but transformer capacity above 315KVA upto 500KVA

Supply & fixing brass stud (for LT 433V side) of suitable size complete with one check nut, two nuts, washers and rubber seal, all as per sample for outdoor/indoor type transformer of the capacity upto 100KVA complete all as specified and directed

All as Per Srl item No 11.00 here in above but transformer capacity above100 KVA upto 200 KVA

All as Per Srl item No 11.00 here in above but transformer capacity above 200KVA upto 315KVA

All as Per Srl item No 11.00 here in above but transformer capacity above 315KVA upto 500KVA

Supply & fixing brass stud (for HT 11KV side) of suitable size complete with one check nut, two nuts, washers and rubber seal, all as per sample for outdoor/indoor type transformer of the capacity upto 100 KVA complete all as specified & directed

All as Per Srl item No 12.00 here in above but transformer capacity above100 KVA upto 200 KVA

All as Per Srl item No 12.00 here in above but transformer capacity above 200KVA upto 315KVA

All as mentioned in item No 12.00 here in above but transformer capacity above 315KVA upto 500KVA

Replacement of unserviceable oil level indicator for transformer of capacity upto 315 KVA all as per existing and having level marking 1/4, 1/2, 3/4 and full all as directed or required at site complete all as specified & directed

Replacement of unserviceable breather assembly for transformer of capacity upto 500 KVA all as per existing complete all as specified & directed

Supply & fixing Arcing Horns of suitable size complete all as per sample for transformer of capacity upto 200 KVA complete all as specified & directed

All as Per Srl item No 15.00 here in above but transformer capacity above 200 KVA upto 500 KVA

Supply and fixing in replacement of Diapharm of breather assy for transformer of capacity upto 500 KVA complete all as per existing specification and size required at site complete all as specified & directed

Dehydration including filteration of transformer oil using dehydration filteration plant including testing of sample before and after dehydration and filteration complete all as specified and directed. (The dielectric strength to be achieved 40 KV at 2.5 mm gap after completion of dehydration and filteration). Note:- (i) Dehydration of transformer oil in the Transformer carried out on the site by dehydration machine. (ii) All the Labour work like disconnection of cable and reassemble & drum etc. has to be carried out by contractor under their own arrenement.)

All as Per Srl item No 17.00 here in above but transformer capacity upto 100 KVA

All as Per Srl item No 17.00 here in above but transformer capacity above 100 KVA upto and including 200 KVA

All as Per Srl item No 17.00 here in above but transformer capacity above 200 KVA upto 315 KVA

All as Per Srl item No 17.00 here in above but transformer capacity above 315 KVA upto 500 KVA

All as Per Srl item No 17.00 here in above but transformer capacity above 500 KVA upto 1000 KVA

Toping up/ filling of transformer oil including testing before filling to achieve 50 KV at 2.5 mm gap complete all as specified and as directed. Make: M&I Material(MIDEL) Power Link, Power Oil, Savita.

Preparation of old painted surfaces and cooling coils/ fins of transformers of upto 100 KVA ( incl. 100 KVA) capacityacities by removing oil marks using chemical or hot blow lamp. Spray painting to prepared surfaces using synthetic enamel paint of superior quality of colour as approved by GE / AGE E/M as per standard engineering practice with two coats, writing SM No, MES No, Make and capacity with white paint having height of each letter not less than 2.5cm and width not less than 1cm complete all as specified & directed

All as Per Srl item No 19.00 above but of capacity above 100 KVA to 200 KVA ( incl. 200 KVA) complete all as specified & directed

All as Per Srl item No 19.00 above but of capacity above 200 KVA to 315 KVA ( incl. 315 KVA) complete all as specified & directed

All as Per Srl item No 19.00 above but of capacity above 315 KVA to 500 KVA ( incl. 500 KVA) complete all as specified & directed

Replacement of unserviceable silica gel superior quality to transformer breather assy all as required complete all as specified and directed.

Excavation in trenches in soft/loose soil n. exc. 1.5 Mtr in width and exc. 1.5 Mtr but not exc. 3.00 Mtr In depth and getting out all as required for laying of cable/ poles complete all as specified and directed.

Removing excavated material to a distance not exceeding 50 Mtr and deposting where directed at a level not exc. 1.5 mtr above the starting point complete all as specified and directed.

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

Supply & laying unreinforced precast cement concrete cable cover, class HV, type 1 with peak, size 300 mm x 180mmx 40mm all as required as in protection of cable complete all as specified and directed.

Material and Labour for dry fine sand cushioning to under ground cables 8 cm thick before laying the cable and 15 cm thick after laying, stretching and testing the cable all as direted. Note : [Punned thickness shall be measured & paid]

M&L for Detection of any type of fault in HT underground Line of any size and core. (laid in soil at plane area or forest area) with the help of HT Meggar. Seggregation of faulty span by meggering and making span serviceable by repair of cable or replacement of cable. Note : 1. Detection of one fault in faulty span will be measured as Each Job. 2. Earth work and taking out will be measured seperately. 3. Material for repair and replacement will be measured saperately.

Detection of any type of fault in HT underground Line (laid in soil at plane area or forest area) with the help of Cable fault locator machine. Cable fault locator with carring vehicle will be brought by the cable fault detection agencies. Span of faulty cable will be trace out by the agencies by meggering HT cable. Note : 1. Detection of fault in one span of length will be measured as Each Job. 2. Technicians will be employed by the working agencies. 3. Earth work and taking out will be measured and paid seperately. 4. Material for repair and replacement will be measured and paid saperately. 5. One job shall be measured if the fault has successfully rectified by the fault locator machine and Technician.

Supply, laying in trenches or fixed to wall/pole or passing through pipe or road crossing, testing and commissioning of HT XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cable (heavy duty ) with aluminium conductor, 11KV grade, suitable for earthed system, with aluminium conductor of size 95 Sqmm 3 Core including taking down unserviceable HT cable of any type/size/description, etc complete all specified and directed (Note : Excavation & Earth work shall be measured and paid seprately).

Supply, laying in trenches or fixed to wall/pole or passing through pipe or road crossing, testing and commissioning of HT XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cable (heavy duty ) with aluminium conductor, 11KV grade, suitable for earthed system, with aluminium conductor of size 120 Sqmm 3 Core including taking down unserviceable HT cable of any type/size/description, etc complete all specified and directed (Note : Excavation & Earth work shall be measured and paid seprately).

Supply, laying in trenches or fixed to wall/pole or passing through pipe or road crossing, testing and commissioning of HT XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cable (heavy duty ) with aluminium conductor, 11KV grade, suitable for earthed system, with aluminium conductor of size 185 Sqmm 3 Core including taking down unserviceable HT cable of any type/size/description, etc complete all specified and directed (Note : Excavation & Earth work shall be measured and paid seprately).

Dismantling cross-arms of M.S. channel or angle sections etc. complete all as specified and as directed

Material and labour 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 and inclusive of one Prime coat, one under coat and one finishing coat of aluminium paint complete all as specified and directed

M&L for cable termination outdoor, heat shrinkable type suitable for XLPE cable of size 50 Sqmm to 95 sqmm 3 core with working voltage 11000 volts with jointing material and accessories including testing complete all as specified and directed Make: Denson/ M Seal / 3 M / Raychem / Cabseal

M&L for cable termination outdoor, heat shrinkable type suitable for XLPE cable of size 120 Sqmm to 185 sqmm 3 core with working voltage 11000 volts with jointing material and accessories including testing complete all as specified and directed Make: Denson/ M Seal / 3 M / Raychem / Cabseal

M&L for cable termination outdoor, heat shrinkable type suitable for XLPE cable of size 240 Sqmm to 300 sqmm 3 core with working voltage 11000 volts with jointing material and accessories including testing complete all as specified and directed Make: Denson/ M Seal / 3 M / Raychem / Cabseal

M&L for Cable jointing kit for 11 KV (Earthed) grade cable for straight through 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 3 core with working voltage 11000 volts complete all as specified and direced Make: Denson/ M Seal / 3 M / Raychem / Cabseal

M&L for Cable jointing kit for 11 KV (Earthed) grade cable for straight through 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 3 core with working voltage 11000 volts complete all as specified and direced Make: Denson/ M Seal / 3 M / Raychem / Cabseal

M&L for Cable jointing kit for 11 KV (Earthed) grade cable for straight through heat shrink type joint complete with joining material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 240 sqmm to 400 Sqmm 3 core with working voltage 11000 volts complete all as specified and directed Make: Denson/ M Seal / 3 M / Raychem / Cabseal

Dismantling and taking down carefully old ACSR conductor/GI wire of any size from HT overhead line after unbinding from insulator complete all as specified and directed

Restretching aluminium conductor or GI wire on existing over head lines (running on 9/11 Mtrs pole) without removing including unbinding from insulator and rebinding to insulator using aluminium binding wire , connections of incoming and out going cables, binding with spacers where required, complete all as specified and directed. Note: (1) ACSR conductor Required for winding etc is deemed included in quoted rates. (2) The distance between two poles shall be considered as one Span for measurement purpose. (3) For measurement length of set of 3 conductors including GI wire/Cradle or gurading wire shall be taken as one span.

Supply and stringing ACSR conductor any size to HT/LT over head lines, stretching properly to achieve proper sag including binding to insulators using GI/alum binding wire all as required at site including connections of incoming and out going cables complete all as specified and directed.

Supply and fixing in replacement single disc type assembly for tension with tension clamps for conductors , working pressure 11000 Volts insulator, porcelain, vitreous having 145mm high and 255 mm dia ball and socket type and white, brown or green in color complete all as required at site complete all as specified and directed.

Supply and fixing in replacement Two-in-series disc type assembly for tension with tension clamps for conductors , working pressure 11000 Volts insulator, porcelain, vitreous having 145mm high and 255 mm dia ball and socket type and white, brown or green in color complete all as required at site complete all as specified and directed.

S&F in replacement polymeric disc type,insulator, 11 KV, 5 KN including connected accessories, insulator shall be legibly and indelibly marked (embossing/engraved) to show the name & Trade mark of the manufacturer, Month & Year of manufacturing, Voltage & Type, Minimum Failling Load ( in KN) complete all as specified and directed.

S&F in replacement Pin type porcelain vitreous insulator, white brown or green in color including one galvanised mild steel spindle, two galvanised iron washers and one galvanised iron nut and having 150 mm height, 150 mm dia suitable for 11000 volts complete all as specified and directed. Make :- Rashtriya / Jaipuria Brothers / BHEL.

Supply and fixing in replacement loop type insulator large size with overall dimensions (90 x140) mm with clearance of hole 25.5 mm vitreous white brown or green complete all as specified and directed .Make :- Rashtriya / Jaipuria Brothers / BHEL.

Supply and fixing in replacement composite post insulator Polymer 252 mm high & 105 mm dia complete all as required at site complete all as specified and directed Make : Rashtriya (Cat Pt No REF - PL01 - 24F11) / Jaipuria Brothers/ BHEL.

Supply and fixing in replacement composite pin insulator polymer 252 mm high & 105 mm dia complete all as required at site complete all as specified and directed Make : Rashtriya (Cat Pt No REE - PL -01-24F-11/33) Japuria Brothers / BHEL.

Dismantling of spares of GOD such as Male , Female , copper belt, belt carrier and back connector plate etc complete all as specified and directed.

Supply & fixing of Male Contact / moving contact blade with arching horn having brass contacts suitable for 11 KV GOD, including galvanised iron bolts, nuts and washers for fixing on post insulator or any other indicated situation complete all as specified and directed Make : Jaipuria brothers/Rashtriya/BHEL

Supply & fixing of Female contact spring loaded having brass contacts suitable for 11 KV GOD, including galvanised iron bolts, nuts and washers for fixing on post insulator or any other indicated situation complete all as specified and directed . Make : Rashtriya / Japuria Brothers / BHEL.

Supply & fixing of Tinned Copper braided flexible belt or jumper 200 Amp/400 Amp, suitable for 11 KV GOD, including galvanised iron bolts, nuts and washers for fixing complete all as specified and directed Make : Rashtriya / Japuria Brothers / BHEL.

Supply & fixing of MS Jumper Carrier for carrying copper braided belt , suitable for 11 KV GOD, including galvanised iron bolts, nuts and washers for fixing complete all as specified and directed . Make : Rashtriya / Japuria Brothers / BHEL.

Supply & fixing of Back connector plate, suitable for 11 KV GOD, including galvanised iron bolts, nuts and washers for fixing complete all as specified and directed Make : Rashtriya / Japuria Brothers / BHEL.

Trimming up of tree branches upto 3 mtr all around HT overhead lines, removing cut branches from site complete all as directed. Note :- (i) The overhead lines will be kept clear from all trees by trimming of tree branches with 3 mtr all around the line. Necessary permission will be obtained from department by contractor one day prior to trimming in particular area and shut down of that area will be arranged by department accordingly. The trimming work shall be commenced once it is permitted by AGE in writing. (ii) Only effective length i.e length where tree branches are touching HT line or neaby HT line shall only be measured & paid under this item. No claim whatsoever shall be entertained by the deptt at later stage.

M&L for opening and assembling of VCB's 630 Amps after cleaning, servicing of VCB's component with CTC gas, providing HT insulation tape over burnt insulation and etc, including replacement of vaccum interrupted assembly 01 set of 3 as per sample complete all as specified and directed .

S&F in replacement of Cable route indicator made of CI 100mm dia welded and fitted with MS angle Iron 40 x 40x 6 mm, 45 Cm long. The angle shall be grouted in PCC block 1:3:6 type C-1 of size 150 x 150 x 150mm. The CI round shall be embossed with the work “MES HT Cables” complete all as specified and as directed.

INDIA ELECTRIC WORKS