REPAIR/MAINT OFVCBs/OCBs/AVRs AND TRANSFORMER INCL GODs AND LIGHTENING ARRESTERS WITH CONNECTED WKS AT UPPER LEIMAKHONG LOWER LEIMAKHONG, CENTRAL SECTOR AND KOIRENGEI MIL STN UNDER GE 869 EWS

Amount

Material and labour for disconnecting electric supply earth & neutral connection and removing the cable & servicing of HT 11KV VCB/OCB of current rating upto 800A of any make and type and carry out the following work:- (a) Cleaning/decarbonizing of all contacts, lever using suitable cleaning agent and tightening of screws, nuts, bolts, etc. (b) Lubricating/greasing of all operating mechanism and moving parts, switching mechanism, de-moisturising of all parts. (c) Checking of all operating mechanism adjustments, measurements of the mechanical clearances of the operating mechanism, tightening of all connections, replacing the unserviceable nut, bolt & washers. engage the isolator with the supply system and testing for smooth functioning. (d) Heating/drying testing of insulators for desired IR value. (e) Checking of internal wiring circuit, including providing insulation by necessary tapping, tightening of all connections, measurements of the mechanical clearances of the operating mechanism associated with the tank or pole should be made including removing moisture deposit.

Notes:- (i) The cost of replacement of unserviceable nut, bolt with double washers, replacement of complete shall deemed to be included in the unit quoted rate. (ii) The breaker shall be repaired through authorised service engineer /OEM of the manufacturer. (iii) Major spare parts required if any during repair/servicing shall be measured and paid separately as supply only under serial item No. 2.00 to 14.00 here-in-after and cost of taking down and fixing of the same shall be deemed to be included in unit quoted rate of this item, where as any minor parts/misc. parts i.e. adequate size of Nut, bolts & washers, HT packing/gasket etc those which are not catered in Sch and required for smooth functioning of transformer are deemed to be included in the quoted rates.

Supply only Power Pack of capacity input voltage 90-270 volt AC and output voltage 24 to 110 volts DC including adequate Nos. of 12 volts 7 AH batteries suitable for existing 800 Amps VCB/OCB complete all as specified and as directed.

Supply only Rectifier Bridge suitable for existing upto 800 Amps VCB complete all as specified and as directed.

Supply only Indicator lamp any type of 24/110/220 volt AC/DC suitable for existing upto 800 Amps VCB/OCB complete all as specified and as directed.

Supply only IDMT (Inverse definite minimum time) over current and earth fault relay suitable for existing upto 800 Amps VCB complete all as specified and as directed.

Supply only spring charging motor with motor gear assembly suitable for existing upto 800 Amps VCB of Crompton Greaves make complete all as specified and as directed.

Supply only spring charging motor with motor gear assembly suitable for existing upto 800 Amps VCB of Scheinder make complete all as specified and as directed.

Supply only spring charging motor with motor gear assembly suitable for existing upto 800 Amps VCB of Areva make complete all as specified and as directed.

Supply only Auxiliary Switch to control spring charging action for auto switch off suitable for existing upto 800 Amps VCB complete all as specified and as directed.

Supply only Vaccum Interrupter and type and capacity suitable for existing upto 800 Amps VCB complete all as specified and as directed.

Supply only HRC fuse 2 Amps capacity suitable for existing upto 800 Amps VCB complete all as specified and as directed.

Supply only PT HRC fuse 3.15 Amps capacity suitable for existing upto 800 Amps VCB complete all as specified and as directed.

Supply only Digital Volt Meter, size 96x96mm, 110 V PT suitable for existing upto 800 Amps VCB complete all as specified and as directed.

Supply only Digital Ammeter 96x96mm, 110 V PT suitable for existing upto 800 Amps VCB complete all as specified and as directed.

Material and labour for taking out transformer from its position for repair and servicing /rewinding of capacity 63 KVA to 250 KVA, 11/0.433 KV and including disconnecting electric supply earth & neutral connection and removing the cable / conductor from both LT & HT side & transport to workshop for service / repairs by dismantling the top portion of the transformer draining the transformer oil , dismantling & removing the HT & LT bushes , lifting the HV & LV winding with the help of crane , cleaning the deposited sherrly / mud at bottom of the tank, removing the unserviceable silica gel etc complete & reassemble the transformer with all existing serviceable parts and new parts as ordered, refilling of dehydraded transformer oil, topping up if required & install in its original postion / location after service / repair & connecting the HT, LT, Earth and neutral connection including testing and commissioning. Note:- 1. The rates are to be included the following:- (a) To and fro transportation charges from the support/location to work shop. (b) Crane, tools, plants and manpower are included in the above quoted rates. (c) Keeping the HV & LV winding with crane in electric oven for 72 Hrs to improve the insulation is deemed to be included in the quoted rate. (d) Testing of BDV value of the transformer oil is to be included in the quoted rates. (e) All minor spare parts, nuts, bolts and washer shall deemed to be included in quoted rates. 2. The required spare parts HV/LV winding, transformer oil etc shall be meassured and paid separately under the relevant item. 3. Dehydration and filteration of transformer oil and new oil required for topping up of transfarmer will be measured and paid separately.

Material and labour for taking out transformer from its position for repair and servicing /rewinding of capacity 315 KVA /400 KVA, 11 KV / 0.433 KV and including disconnecting electric supply earth & neutral connection and removing the cable / conductor from both LT & HT side & transport to workshop for service / repairs by dismantling the top portion of the transformer draining the transformer oil , dismantling & removing the HT & LT bushes , lifting the HV & LV winding with the help of crane , cleaning the deposited sherrly / mud at botom of the tank, removing the unserviceable silica gel etc complete & reasseamble the transformer with all existing serviceable parts and new parts as ordered, refilling of dehydraded transformer oil, topping up if required & install in its original postion / location after service / repair & connecting the HT, LT, Earth and neutral connection including testing and commissioning. Note:- 1. The rates are to be included the following:- (a) To and fro transportation charges from the support/location to work shop. (b) Crane, tools, plants and manpower are included in the above quoted rates. (c) Keeping the HV & LV winding with crane in electric oven for 72 Hrs to improve the insulation is deemed to be included in the quoted rate. (d) Testing of BDV value of the transformer oil is to be included in the quoted rates. (e) All minor spare parts, nuts, bolts and washer shall deemed to be included in quoted rates. 2. The required spare parts HV/LV winding, transformer oil etc shall be meassured and paid separately under the relevant item. 3. Dehydration and filteration of transformer oil and new oil required for topping up of transfarmer will be measured and paid separately.

Material and labour for repair /servicing to transformer at site of capacity 63 KVA to 250 KVA installed on Plinth / Pole mounted structure by opening top cover & replacing unserviceable spares / components of transformer ,without lifting core assembely reassembling after repair and testing complete all as specified and directed.

Material and labour for repair /servicing to transformer at site of capacity 315 KVA to 400 KVA installed on Plinth / Pole mounted structure by opening top cover & replacing unserviceable spares / components of transformer ,without lifting core assembely reassembling after repair and testing complete as all specified and directed. Note:- For Sch 'A' item No 15.00 to 18.00 Major spare parts required if any for repair shall be measured and paid separately as supply only under serial item No. 23.00 to 47.00 here-in-after, where as any minor parts/misc. parts i.e. adequate size of Nut, bolts & washers etc those which are not catered in Sch and required for smooth functioning of transformer are deemed to be included in the quoted rates.

Material and labour for rewinding of LV side by using super enameled copper winding wire as per relevant IS and orginal gauge,including insulating materials such as cotton tape, packing and sleeves etc varnishing by vaccum impregnation and baking of coil core assembly for copper wound transformer complete all as specified and as directed by Engr -in Charge. Make: Atlas/ Devidayal/ Bharat Bijli.

Material and labour for rewinding of HV side by using super enameled copper winding wire as per relevant IS and orginal gauge/data,including insulating materials such as cotton tape, packing and sleeves etc varnishing by vaccum impregnation and baking of coil core assembly for copper wound transformer complete all as specified and as directed by Eng -in Charge. Make: Atlas/ Devidayal/ Bharat Bijli

Material and labour for re-insulation of HT coil of transformer of any capacity using proper size paper insulation material to form DPC Copper wire and HT insulation material suitable for HT 11 KV transformer complete all as specified and directed. (Note : Item shall be measured only where re-insulation of copper wire is required.)

Material and labour for re-insulation of LT coil of transformer of any capacity using proper size paper insulation material to form DPC Copper wire and insulation material suitable for HT 11 KV transformer complete all as specified and directed. [Note : Item shall be measured only where re-insulation of copper wire is required].

Supply only Ceramic Bush insulators on LT side as per existing size, shape and specification for capacity 315 to 400 KVA, 11/0.433 Volts transformers complete all as specified and directed.

Supply only Ceramic Bush insulators on LT side as per existing size, shape and specification for capacity 200 to 250 KVA, 11/0.433 Volts transformers complete all as specified and directed.

Supply only Ceramic Bush insulators on LT side as per existing size, shape and specification for capacity 63 to 160 KVA, 11/0.433 Volts transformers complete all as specified and directed.

Supply only brass spindle on LT side as per existing size, shape and specification for capacity 315 to 400 KVA, 11/0.433 Volts transformers complete all as specified and directed.

Supply only brass spindle on LT side as per existing size, shape and specification for capacity 200 to 250 KVA, 11/0.433 Volts transformers complete all as specified and directed.

Supply only brass spindle on LT side as per existing size, shape and specification for capacity 63 to 160 KVA , 11/0.433 Volts transformers complete all as specified and directed.

Supply only cork sheet gasket (set of four) for ceramic bushing on LT side as per existing size, shape and specification complete for capacity 315 & 400 KVA, 11/0.433 Volts transformers complete all as specified and directed.

Supply only cork sheet gasket (set of four) for ceramic bushing on LT side as per existing size, shape and specification complete for capacity 200 to 250 KVA, 11/0.433 Volts transformers complete all as specified and directed.

Supply only cork sheet gasket (set of four) for ceramic bushing on LT side as per existing size, shape and specification complete for capacity 63 to 160 KVA, 11/0.433 Volts transformers complete all as specified and directed.

Supply only Ceramic Bush insulators on HT side as per existing size, shape and specification for capacity 315 & 400 KVA, 11/0.433 Volts transformers complete all as specified and directed.

Supply only Ceramic Bush insulators on HT side as per existing size, shape and specification for capacity 200 to 250 KVA, 11/0.433 Volts transformers complete all as specified and directed.

Supply only Ceramic Bush insulators on HT side as per existing size, shape and specification for capacity 63 to 160 KVA, 11/0.433 Volts transformers complete all as specified and directed.

Supply only brass spindle on HT side as per existing size, shape and specification for capacity 300 & 315 KVA, 11/0.433 Volts transformers complete all as specified and directed.

Supply only brass spindle on HT side as per existing size, shape and specification for capacity 200 to 250 KVA, 11/0.433 Volts transformers complete all as specified and directed.

Supply only brass spindle on HT side as per existing size, shape and specification for capacity 63 to 160 KVA , 11/0.433 Volts transformers complete all as specified and directed.

Supply only top cover gasket set as per existing size, shape and specification complete for capacity 315 to 400 KVA , 11/0.433 Volts transformers complete all as specified and directed.

Supply only top cover gasket set as per existing size, shape and specification complete for capacity 200 to 250 KVA, 11/0.433 Volts transformers complete all as specified and directed.

Supply only top cover gasket set as per existing size, shape and specification complete for capacity 63 to 160 KVA, 11/0.433 Volts transformers complete all as specified and directed.

Supply only transformer oil first hand conforming to IS -335 of 1993 up to desired level of transformer oil capacity complete all as specified and as directed. Note: (i) Dielectric strength of oil should not be less than 60 KV with 2.5 mm gap including onload filtration complete all as specified and directed. (ii) Transformer oil shall be brought in manufacturer sealed drum at site.

Supply and replacing silica gel in crystal form of breather assembly of transformer capacity upto 1200 KVA at installed site complete all as specified and directed.

Supply only of gang operated device (GOD), trpple pole current rating 400 Amps, HT 11 KV vertical, mechanicaly operated mounted on insulators and steel frame with operating mechanisom operated from ground with GI Pipe 25 mm dia (heavy grade) with locking arrangement including jumper connection which suitable size and type ACSR conductor alongwith PVC Pipe covering with colour code between main supply and GOD complete all as specified.

Supply only Male & Female Contact/ Moving Contact Blade suitable for Air Break Gang Operated Switches, 11 KV, complete all as specified and as directed.

Supply only lightining arrester non -liner resister type confirmed to IS3070(Part-III)-1993 complete. Line discharge class-3, nominal discharge current 65 KA, 12 KV rated system voltage peak value light current impalse of 4/10 micro sec, wave shape 100 KA (peak) assy suitable for 11 KV, long duration discharge class-II with insulation level 28/75 KV and mounted on hot die galvanised steel structure incl all clamps, nuts, bolts, washers and connecting to earth complete two pole structure all as specified and directed.

Supply and fixing in repair Air Breather Assembly suitable for transformers of 63 to 500 KVA installed at site complete all as specified and directed.

Supply and fixing fixing in repair Air Breather Assembly suitable for transformers of 630 to 1200 KVA installed at site complete all as specified and directed. Notes for item No 23 to 47: Rewinding of transformer HT / LT coils shall be carried from ISO certified 2008 Coy (b) Dehydration and filteration of transformer oil and replacement of UNSV spares shall be measured and paid separately under appropriate item of shedule however cost of renewal of nuts bolt washers shall deemed to be included in unit rate quoated.

Material and labour for preparation of old painted steel or iron surfaces of transformer of 63 to 100 KVA , 11/0.433 Volts capacity transformers by scrapping with steel wire brush/scrapper emery paper, etc. and applying two coats of synthetic enamel smoke grey paint over a coat of red oxide primer (painting shall be done by 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.

Material and labour for preparation of old painted steel or iron surfaces of transformer of 160 to 250 KVA , 11/0.433 Volts capacity transformers by scrapping with steel wire brush/scrapper emery paper, etc. and applying two coats of synthetic enamel smoke grey paint over a coat of red oxide primer (painting shall be done by 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.

Material and labour for preparation of old painted steel or iron surfaces of transformer of 315 to 630 KVA , 11/0.433 Volts capacity transformers by scrapping with steel wire brush/scrapper emery paper, etc. and applying two coats of synthetic enamel smoke grey paint over a coat of red oxide primer (painting shall be done by 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.

Material and labour for heating, filtration and dehydration of transformer oil on site at different location with dehydration/ filtration plant to achieve dielectric strength of 60 KV at 2.5 mm gap including onload filtration compete all as specified as directed by Engr-in-Charge. (Any damage occurred to transformer during the process of dehydration, shall be made good by the contractor to the enitre satisfaction of the Engr-in-Charge at his own expenses) complete all as specified and directed.

Material & Labour for earthing complete with galvanised steel earth plate electrode 600x600x6mm thick buried directly in ground ( earth pit not less than 2.5 metres deep below ground level with top edge of the plate not less than 1.5 metres below normal ground level, connected to galvanised iron strip 32 X 6 mm by means bolts,nuts,chek nuts and washer of galvanised iron or steel and other end connected with to DG set etc as directed including funnel , made of 20 mm dia GI Pipe (Med grade) for watering, 40 mm dia GI Pipe light grade for protection ,wire messh charcoal of cold dust and common salt in alternate layer all around the earth electrode compacted thickness 15cm with concrete pit in PCC 1:3:6 type C1 50mm thick pre cast RCC 1:2:4 type B1with 8mm dia cover slab set in CM (1:4) re-enforcement with 8mm dia deformed bars @ 15cm C/C and suitable handle of 10mm dia MS round bars, including earth work as required complete all as shown in electrical plate No.5 schedule part-I and testing including taking down of existing unserviceable earthing complete all as specified and as directed.

Supply, laying, jointing, connecting in replacement of HT XLPE Cable, insulated, screened, PVC bedded, Galvanised Steel Strip or Wire armoured, Electic Power Cable (heavy duty) with Aluminium Conductor, conforming to IS:7098 , 11 KV (Earthed Cable), cross-sectional area 150 Sqmm 3 Core, laid in Pipe/ Ducts/ Trenches/ under Floor/under Road including Testing, complete all as specified and as directed.

Supply, laying, jointing, connecting in replacement of HT XLPE Cable, insulated, screened, PVC bedded, Galvanised Steel Strip or Wire armoured, Electic Power Cable (heavy duty) with Aluminium Conductor, conforming to IS:7098 , 11 KV (Earthed Cable), cross-sectional area 95 Sqmm 3 Core, laid in Pipe/ Ducts/ Trenches/ under Floor/under Road including Testing, complete all as specified and as directed.

Supply & Fix in replacement Cable jointing kit for 11 KV (Earthed) 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 150 sqmm, complete all as specified and directed.

Supply & Fix in replacement Cable jointing kit for 11 KV (Earthed) 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, complete all as specified and directed.

Supply and fixing in replacement for HT 11 KV (Earthed) grade heat shrinkable end termination jointing kit indoor type complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95 sqmm complete all as specified and as directed.

Supply and fixing in replacement for HT 11 KV (Earthed) grade heat shrinkable end termination jointing kit outdoor type complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95 sqmm complete all as specified and as directed.

Removal of unwanted grass, plants and vegetations from E/M installations including surface dressing and removal of grass, plants and vegetations from site not less than 50 mtr from starting point complete all as specified and directed.

M/S MANGANG RENOVATIONS (BID ID -3466648)

M/S Apple constructions (BID ID -3466652)