REPAIR AND MAINT OF 11 KV AND 33 KV HT ELECT INSTALLATIONS INCL CONNECTED ITEMS SUCH AS TRANSFORMERS, HT SERVO STABILIZERS, VCBs, CT/PT, GOD, DO FUSES, CONTROL CABLES ETC AT SONAMARG INCL HAWS UNDER GE 970 EWS.

Amount

Dismantling of existing old unserviceable ACSR conductors of any size and type and S&F new ACSR conductors including stringing through existing RCC/ steel poles, fixing in insulators, jumpers with polythene pipes and aluminium binding wire etc, complete of all as specified and directed. Note :- Rates for alumnium tape, binding wire shall be deemed to include in quoted rates.

S&F in repair/ replacement mild steel cross arms, channels, bracing, supports, clamps etc, fabricated from structured steel, sections including nuts, bolts, washers etc and cutting to required length, bent to shape, drilling holes, fixed on poles or jointed by means of electric welding complete including painting with two coats of aluminium paint over a coat of red oxide zinc chrome primer after preparation of surface, complete all as specified and directed.

S&F in replacement cable jointing kit for 11 KV grade cable for outdoor termination, heat shrink type joint complete with jointing material and accessories, suitable for 3 Core XLPE armoured aluminium conductor cable of size 95 Sqmm, complete all as specified and directed.

S&F in replacement cable jointing kit for 11 KV grade cable for indoor termination, heat shrink type joint complete with jointing material and accessories, suitable for 3 Core XLPE armoured aluminium conductor cable of size 95 Sqmm, complete all as specified and directed.

S&F in replacement cable jointing kit for 11 KV grade cable for straight through joint, heat shrink 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 directed.

Supply, laying, testing and commissioning XLPE HT cable, PVC insulated, screened PVC bedded galvanised steel strip or wire armoured electric power cable, heavy duty with aluminium conductor, 11000 Volts grade (earthed) of size 3 Core 95 Sqmm, laid in trenches / floor / duct / fixed on poles through GI tubing in different locations/ areas, complete all as specified and directed.

S&F in replacement drop out (DO) fuse unit expulsion type, outdoor, three pole, 200 Amps, suitable for HT 11 KV, comprising of insulators, steel base mounting frame, GI nuts, bolts etc with 30A, HT barrel type fuse, complete all as specified and directed.

S&F in replacement including testing and commissioning of (GOD) gang operated type air break isolating switch horizontal/ vertical type mounting complete, double break and operation rod of suitable length 200 A capacity and suitable for 11 KV HT supply, complete all as specified and directed.

S&F replacement lightening arrestor zinc oxide gap less type, station class suitable for 11 KV/ 10 KA complete with all fittings, complete all as specified and directed.

Removing of vegitation, grass, scrubs and bushes growing in sub station yard along with fencing by manually / mechanically and keep the sub station yard neat and clean, complete all as specified and directed. Notes :- (a) Unit rates quoted deemed to be include to keep the installation neat and clean through out the period of contract and each cleaning will be measured and paid separately. (b) Neccesary tools shall be arrange by the contractor without any extra cost to Govt.

Taking down carefully the existing 11 KV/ 433 V distribution transformer of capacity 25 KVA to 250 KVA by disconnecting HT overhead connection/ underground cables and earth strips etc. from any sub station/ locations using suitable capcity of crane or by any other method irrespective of type of approach available, loading in vehicle, transport to workshop for repair and unloading carefully. Reloading the transformer after repair and testing, transport to site and unloading including placing at given position and re-commissioning, complete all as specified and directed by Engineer-in-Charge. Note :- All the T&P required for disconnection, loading and unloading including necessary petty items such as bolts, nuts, washers etc shall be arranged by the contractor and rates for the same deemed to include in the quoted rates.

M&L for repair of transformer step down 11 KV / 0.433 KV of any type of capacity 25 KVA to 100 KVA after dismantling the transformer body carefully, opening the top cover of transformer for inspection / repair, drain out the transformer oil from the tank complete, taking out the core and winding assy by disconnecting the internal connections, removing the carbon/ sludge deposit in transformer housing core, renewal/ replacement of unsv rubber bushes and washers, replacement of tap changer winding and thimbles, replacement of silica gel, replacement of top cover gasket set including pasting with pasting material, replacement of worn out nuts and bolts, replacement of unserviceable LT & HT bushes, cutting the burnt out winding and re-winding the same with suitable size of super enamelled copper wire as per existing guage, insulating the winding connection by using fire proof sleeve and fire proof tape, warnishing the coil, keeping the coils in electric oven chamber for 24 hrs to remove the moisture, painting of complete transformer body from outside and inside by weather proof type using spray gun, marking of MES/SM Number etc, replacement of conservator tank glass, re-installing the core and winding inside properly, making the all connection with suitable copper lugs, re-filling of dehydrated transformer oil including dehydration, re-installing the top cover after cleaning and painting of housing, conservator tank, expulsion vent etc, meggering the LT and HT side of the transformer and testing, complete all as specified and directed. Note :- Winding wire for making of coils and LT/ HT bushes shall be measured & paid separately under respective item of BOQ.

M&L for super enamelled copper conductor wire of suitable gauge and size as per requirement for re-winding the HT transformer of any capacity and make, complete all as specified and directed.

Supply and filling of fresh transformer power oil of BDV not less than 60 KV for topping up of reduced level of transformer due to evaporation/ leakage/ losses due to dehydration in distribution transformer for replacement complete including draining of old unsv transformer oil, complete all as specified and directed.

M&L for conducting oil filtration by stream line/ vacuum type filter machine to remove the moisture/ carbon particles to improve required BDV of oil 50 to 60 KV for 1 min for power transformer and as BDV of oil 40 to 50 KV for 1 min for distribution transformer including routine testing after filtration for any capacity of transformers/ CT/ PT units, complete all as specified and directed. Note :- The contractor shall be change the filter assy before starting the filtration of power / distribution transformer of any capacity in presence of Engineer-in-Charge.

Dismantling of old UNSV conventional earth pit including electrode plate/ pipe from position and M&L for maintenance free modern marconite (R) conductive concrete based technology earthing system in same or different place where directed with copper earth electrode of suitable size including back fill compound and other accessories as required and recommended by OEM and connecting with copper strip of size 25x3mm in position (connecting upto 7.5 mtr length max), complete all as specified and directed and having following specifications :- (a) Fixed Carbon 98.5%. (b) Ash, Volatile and Water 1.5%. (c) Sulphur content 1.5% maximum. (d) Size Grading (approx) - 10% below 0.10mm, 5 % above 3.15mm, 85% between 0.10mm and 3.15mm. (e) Thermal Stability between (-) 10% and (+) 60% ambient temperature. (f) Ultra Low Resistivity. (g) Versatile - shall be suitable for all type of soil and climate. (h) Consistent performance. (j) Chemically Inert. (k) Non-Corrosive. (l) Maintenance free and life span.

M/s Habib Electronics

M/S Rather and Sons

M/S N A Enterprises

CHINAR CONSTRUCTION TRADERS

REEZEE CONSTRUCTIONS