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| 1 | Taking down of the UNSV/ defective distribution transformer/power transformer of capacity 400 KVA and above upto 500 KVA (out door/Indoor type) from the existing site located in cantt area after disconnecting the in/out connection, lifting with the help of suitable cranes etc, andtransporting the transformers to workshop/factory with suitable vehicles for repairs,testing and transporting the same back after repairs and installing, hoisting of transformers on two/four pole structure/plinthat height not less than 3 metre, making all electric connections with HT/LT side jumpers and leads including earth connections etc and testing, complete all as specified and as directed by Engineer-in-Charge. |
| 2 | All as per item No01 here-in-before but 150 KVA to 315 KVA complete all as specified and as directed by Engineer-in-Charge. |
| 3 | All as per item No 01 here-in-before but 75 KVA to 125 KVA complete all as specified and as directed by Engineer-in-Charge. Notes : for items 1 to 3 above :- (a) Oil container for collecting old transformer oil will be arranged by the contractor.(b)T&P such as chain pulley ,crane for loading, unloading ,trasporting and for installing and hoisting shall also be arranged by the contractor. |
| 4 | Material and labourfor opening the top of defective transformer of any make and capacity 400 KVA to 500 KVA removing gasket and lifting up the core assembly carefully to check the condition of transformer for repairs, dismantling core lamination to the extent required for taking outdefective/ unserviceable coil for check after disconnecting all connections and re-assemblingof core lamination to original position after positioning of existing serviceable coil alongwith new coils carefully to check the condition of transformer to ascertain the repairs/replacement of items for repair including cleaning the tank, removing sludge, dirtcleaning the coils of limbs, re-fixing the core assembly and reassembling of transformer after repairs including zinc chromate paint inside , rewriting MES number & SM number with white paint, replacement of nuts bolts with washers, thimbles etc and connections with aluminium strip and including welding, denting etc and testing the transformer at factory/workshop complete all as specified and as directed by Engineer-in-Charge. |
| 5 | All as per item No 04 here-in-before but 150 KVA to 315 KVAcomplete all as specified and as directed by Engineer-in-Charge. |
| 6 | All as per item No 04 here-in-before but 75 KVAto125 KVA complete all as specified and as directed by Engineer-in-Charge. Notes : for items 4 to 6 above :- (a) The payments of new coils and other parts to be replaced shall be made as supply only underitems here-in-before, cost of fixing these items is included in item No 4 to 6.(b) Cost of dehydration of transformer oil is not included under these items. |
| 7 | Supply onlyHT/ LT coil DPC aluminium wire /strip of existing size(gauge),grade and in weight complete with insulating material for transformers of capacity 75 KVA to 500 KVA complete all as specified and as directed by Engineer-in-Charge. NOTE : Fixing charges of formed coil included in unit rate under Item 04 to 06above. |
| 8 | Supply only HT/LT coil DPC copper winding strip of existing size (gauge), grade and in weight complete with insulating material for transformers of capacity 75 KVA to 500 KVA, complete all as specified and as directed by Engineer-in-Charge. NOTE : Fixing charges of formed coil included in unit rate under Item 04 to 06above |
| 9 | Supply & fixing in replacement of HTbrass spindlesincluding, heat resistance gasket, nuts, bolts, washers for transformers of capacity 75 KVA to 125 KVA as per existing type, dia and length complete all as specified and as directed by Engineer-in-Charge. |
| 10 | All as per item No 9 here-in-before but for transformers of capacity 150 KVAto 315 KVA complete all as specified and as directed by Engineer-in-Charge.. |
| 11 | All as per item No 9 here-in-before but for transformers of capacity 400 KVAto 500 KVA complete all as specified and as directed by Engineer-in-Charge. |
| 12 | Supply & fixing in replacement of HT porcelain bushing for transformers of capacity 75 KVA to 500KVA complete all as specified and as directed by Engineer-in-Charge. |
| 13 | Supply & fixing in replacement of LT brass spindleincludingheat resistance gasket, nuts, bolts, washersfor transformers of capacity 75 KVA to 125KVA complete all as specified and as directed by Engineer-in-Charge |
| 14 | All as per item No 13 here-in-before but for transformers of capacity 150 KVAto 315 KVA complete all as specified and as directed by Engineer-in-Charge |
| 15 | All as per item No 13 here-in-before but for transformers of capacity 400 KVAto 500 KVA complete all as specified and as directed by Engineer-in-Charge |
| 16 | Supply & fixing in replacement of LTporcelain bushing for transformers of capacity 75 KVA to 500KVA complete all as specified and as directed by Engineer-in-Charge |
| 17 | Supply & fixing silica gel breathers assembly filled with silica gel complete for transformers of capacity 75 KVA to 500 KVA complete all as specified and as directed by Engineer-in-Charge |
| 18 | Material and labour for top up with fresh transformer oil in transformers in-situand for newly rewinded transformer after filtration/dehydration with minimum dielectric strength of 60 KV complete all as specified and as directed by Engineer-in-Charge |
| 19 | Dehydration/filtration of transformers oil of existing transformers (out door/Indoor, step up/step down), at site by means of oil dehydration machine having arrangement for heating to remove the moisture silt/sludgeand wastage removing arrangement etc to make the oil fit for use in accordance with IS-1886 to achieve minimum dielectric strength of 60 KV by continuous process of dehydration complete all as specified and as directed by Engineer-in-Charge. (Testing machineshall be arranged by thecontactor) Note -(a) Electricity for running dehydration machine & testing, shall be provided by the department free of cost.(a) Any damage caused to transformer during dehydration/filtration shall be responsibility of the contactor. |
| 20 | Cleaning sprinkled transformer oil, grease and all other foreign materials from external surfaces of transformers of capacity 75 KVA to 200KVA and preparing the surface to receive paint and applying one coat of synthetic enamel paint (spray painting) including writing MES number and SM number with white paint over black base in letters not less than 10 cms in height complete all as specified and as directed by Engineer-in-Charge.NOTE :- Paintingshall be carried out at site. |
| 21 | All as per item No 20 here in before but transformers of 250KVA to 500 KVA capacity complete all as specified and as directed by Engineer-in-Charge. |
| 22 | Supply only off load tap changing assembly with 7.5 tapping at the rate +/- 2.5 percent stepping including making connections and testing complete for transformers of capacity 75 KVA to 315 KVA complete all as specified and as directed by Engineer-in-Charge. |
| 23 | All as per item No 22 here-in-before but for transformers of capacity 400 KVA to 500 KVA complete all as specified and as directed by Engineer-in-Charge.. |
| 24 | Supply only CRGO silicon core as per existing thickness, size & design for transformer 75 KVA to 500 KVA complete all as specified and as directed by Engineer-in-Charge |
| 25 | Opening the top of existing transformer at site of any make and capacity (at site) 75 KVA to 160 KVA, drainage of oil, stopage of leakage ,change ofgasket, oil rings, nuts, bolts & washers ,carefully re-fixing/refilling oilincluding replacement of gasket, oil rings, nuts bolts and washer complete all as specified and as directed by Engineer-in-Charge |
| 26 | All as per item No 25 hereinbefore but transformers of 200 KVA to 315 KVA capacity complete all as specified and as directed by Engineer-in-Charge |
| 27 | All as per item No 25 hereinbefore but transformers of 400 KVA to 500 KVA capacity complete all as specified and as directed by Engineer-in-Charge |
| 28 | Earthing complete with galvanised steel earth plate electrode 60 cm x60 cm x 6 mm thick buried directly in ground ,(Earth pit not less than 2.25 meter deep below ground level) with top edge of plate not less than 1.5 meter below normal ground level ,connected to and including galvanised iron earth strip 32 X 6 mm by means ofnut, bolts, check nuts and washers of galvanised iron or steel and provision of charcoal dust and common salt packed all around the earth plate including necessary excavation and earth work in any type of soil and testing complete all as specified and directed and shown in electrical plate number 3 of MES SSR part-I(1991) complete all as specified and as directed by Engineer-in-Charge. |
| 29 | Material and labour for plain cement concrete (1:4:8) type D-2 using 40mm graded stone aggregate as in foundation fillings and mass concrete for poles complete all as specified and as directed by Engineer-in-Charge |
| 30 | Material and labour for providing cement concrete 1:2:4 type B-1 (using 20 mm graded crushed stone aggregate) for coping of poles including necessary form work and finished the surfacecomplete all as specified and as directed by Engineer-in-Charge |
| 31 | Supply and spreading 40 mm graded stone aggrgate in substation yard complete all as specified and as directed by Engineer-in-Charge |
| 32 | Material & labour foraluminium strip 25mm x 3.15 mm with saddle and fixing screw with Busbar insulators etc roof conductors and down conductors above ground level, complete all as specified and as directed by Engineer-in-Charge |
| 33 | Material and labour for brick work with sub class \"B\" bricks straight or curved on plan exc 6m mean radius built in cement mortar 1:4 complete all as specified and as directed by Engineer-in-Charge |
| 34 | Material and labour for 15mm thick rendereing in cement mortar 1:4 on brick/concrete surfaces finished even and smooth surfaces without using extra cementcomplete all as specified and as directed by Engineer-in-Charge |
| 35 | Material and labour for sand cushioning with a layer of fine sand 8 cm thick begore laying of cable and 15 cm thick after laying of cable in trenchescomplete all as specified and as directed by Engineer-in-Charge.Notes : (i) Excavation and earth work to be measuredand paid separately).(ii) Thickness of 18 cms after punning shall be considered for payment. |
| 36 | Material and labour for precast cement concrete solid building blocks or slabs 7.5 cm thick solid block (with plain or interlocking joints as directed) setting in mortar 1:4 type B-1, 1:2:4 (20 mm graded aggregate), for cable duct complete all as specified and as directed by Engineer-in-Charge |
| 37 | Material and labour formild steel bars 10mm dia (Fe-410-W (Gde.E-250) quality-A or Fe 290 (Gde - E-165) and over, cut to length, bent to shape required, including cranking, bending spirally for hooping for columns, hooking ends and binding with and including mild steel wire (annealed) not less than 0.9 mm dia or securing with clips complete all as specified and as directed by Engineer-in-Charge |
