REPAIRS MAINTENANCE OF EXTERNAL ELECTRIFICATION AND OTHER CONNECTED WORKS AT SONEGAON , NAGPUR

Amount

M&L for On load Filteration of transformer oil by continous circulation of transformer oil through mechanical filters to achive the desired dielectric strength of 35 KV for one minute at 4 mm gap complete all as specified. Note: 1.Oil samples are to collected from top and bottom of oil tank and test results to be submitted for each sample before and after filteration.

Supply and topping up /replacement of new transformer oil of dielectric strength 35 KV at 4 mm gap in transformers of various cap installed in various locations . Make of Transformer oil: Power Oil / Indian Oil / Rinkyl /Apar Note : New Transformer oil in the transformer will be filled in the transformer only after filteration and dehydration of existing transformer oil of the transformer. (b) Transformer oil shall be supplied in sealed barrel with test result and test certificate.

Opening the top of the transformer of capacity upto 250 KVA drining out transformer oil , cleaning the internal portion of tank, core and connections by mechanical means and force feeding of transformer oil and flushing out deposits, sludge etc, replacement of studs, bushings, washers etc and closeing the top including hew set of tropiclaused gaskets complete all as specified and directed.

Taking out old/ exhausted silica gel from transformer breather, cleaning of the brather assembly, supply and filling new silica gel in the breather Refixing of the breather with the transformer all as directed

Replacement of old unserviceable breather of the transformer with new breather of 500 grams capacity for transformer complete all as specified and as directed.

M & L for servicing of AB Switch by cleaning contacts, removing carbon, adjusting the fixed and moving contacts, guides, applying petrolium gelly for easy operation, replacement of jumpers and connections, bolts, nuts etc, if required complete all as specified and directed.

Taking down carefully existing unserviceable expulsion/drop out fuse with all fitting complete and removing the material to store for safe custody for issue under schedule of credit , supply and fix expulsion/drop out fuse unit with silvarised brass contactors and fuse barrel suitable for 11 KV system tripple pole of rating 200A fused lazed upto 60 A complete with all fittings all as specified and as directed.

M&L Danger notice plate of 1.6mm thick mild steel sheet, of size 250mm x 200mm for 11 KV, vitreous enamelled white, with letter, figures and convetional skull and bones in signal red colour and fixed in front side with suitable screws / nuts, bolts & washers complete all as specified and as directed.

All as per item No 8 here in before but of size 200mm x 150mm for LT

Scraping down fallen paint rusted surface of poles 11 mtr long and preparation of surfaces and painting with aliminium paint single coat complete including cross arms bracing , clamps and supports

M&L for On load Filteration of unbalance Voltage stablizer Power oil by continous circulation of transformer oil through mechanical filters to achive the desired dielectric strength of 35 KV for one minute at 4 mm gap complete all as specified. Note: 1.Oil samples are to collected from top and bottom of oil tank and test results to be submitted for each sample before and after filteration.

Supply and topping up /replacement of new transformer oil of dielectric strength 35 KV at 4 mm gap in transformers of various cap installed in various locations . Make of Transformer oil: Power Oil / Indian Oil / Rinkyl /Apar Note : New oil in the voltage stabilizer will be filled in the voltage stabilizer only after filteration and dehydration of existing oil of the voltage stabilizer. (b) New oil shall be supplied in sealed barrel with test result and test certificate.

Excavating in trenches not exceeding 1.5 m wide and not exceeding 1.5 m in depth for foundation of poles, stays, laying of UG cable/ pipes & getting out in soft/loose soil complete all as specified and as directed

Removing excavated material (soil) not exceeding 50m and depositing where directed at a level not exceeding 1.5 m above the starting point complete all as specified and directed.

Returning, filling in including spreading, levelling, watering and well ramming in layers not exceeding 25 cm in soft/loose soil complete all as specified and directed.

M & L for providing dry river sand as in sand cusioning for underground cable protection including punning down sand in layers complete all as specified & directed Note: Only punned thickness of sand shall be considered for measurement purposes

Supplying and laying common burnt clay sub class ‘B’ bricks of size 230 mm x 113 mm x 75 mm, laid perpendicular to axis of cable for protection of LT cables complete all as specified and directed.

M & L road cutting of size 30 cm width x 45 cm depth for laying of cables incl making good the road with necessary returning fillingand bituminious portion with concret and bituminious mixture and cemented portion with PCC in 1:2:4 , 15 cm thick from top and matching the surfaces with existing all as directed.

Supplying and laying GI pipe Light grade (ISI marked) 50mm bore with connecting accessories, laid under road/ drain/fixed on wall etc for protection of cables complete all as specified and directed

Supplying, laying, testing and Commissioning cable XLPE insulated aluminium conductor,stranded, armoured, PVC sheathed, LT 1100 volt grade, heavy duty as per IS-7098 and providing suitable lugs and cable glands, laid in trenches/ ducts/fixed to wall/ roof/ poles including taking down existing cables complete all as specified and directed of following sizes. (a) 95 sqmm, 3.5 core

(b) 70 sqmm, 3.5 core

(c) 50 sqmm, 3.5 core

(d) 35 sqmm, 2 core

(e) 25 sqmm, 3.5 core

Taking out the VCB 11 KV Make CG installed in Power house, cleaning the contacts, lubrication of moving parts all as specified and refixing the same with checking of control wiring , testing & Calibration for satisfactory functioning all as directed by Eng-in-Charge.

Taking out the 3phase Voltage stablizer input voltage 300 to 480V, output voltage 415 +/-1% for unbalance load Make Sintrac in Power house, cleaning the contacts, lubrication of moving parts including servo moter all as specified and refixing the same with checking of control wiring , testing & Calibration of Auto/Mannual system for satisfactory functioning all as directed by Eng-in-Charge.

Supply and fix Isolator TPN 63 A 415 Volts 10 KA breaking Capacity B Series characterstics mounted on DIN Rail and connecting up all as specified and as directed. f Legrand / Seimens / Hager /Havells

Supply and fix MCCB 125 A 415 Volts 36 KA breaking Capacity ,AAN frame fixed onExisting pannel in power house/feeder pannel and connecting up all as specified and as directed& in the process of fixing of MCCB minor drilling, clamping ,screw ,nut bolt included in quoted rate. Havells / Hager/Legrand

ditto but for 100Amp

ditto but for 200Amp

Supply and fix MCCB 800 A, 4Pole ,Ui 690V Uimp 6KVCat A 50/60Hz 50Degree C,Ue AC 600V Icu25KA & Ue AC 380V Icu 65kA, fixed onExisting pannel in power house/feeder pannel and connecting up all as specified and as directed& in the process of fixing of MCCB minor drilling, clamping ,screw ,nut,bolt &washer all as directed by Eng-in-Charge included in quoted rate..Make Havells / Hager/Legrand

PURVA ENTERPRISES

Paragon Electrotechnics

Chinmaya Enteprises