SPL REPAIR / REPLACEMENT OF BER TRANSFORMER ALONG WITH CONNECTED ACCSSORIES UNDER GE (UTILITIES) UDHAMPUR

Amount

Supply, installation, Connecting,Testing and Commissioning of Oil Cooled, Copper wound (Purity of copper 99.8%) , Step down "BIS marked & BEE star labelled " transformer of capacity 400 KVA plinth mounted outdoor type with latest feature complete with standard fitted HT 11 KV 3 phase, LT 433 V 3, phase 4 wire,50 C/S oil immerse, naturally cooled externally cooling tube delta connection on primary HT 11 KV side and star connection on secondary LT 433V with tapping at +/-2.5 %to +/-5 % & +/- 7.5 % on HV side and to be changed by means of hand operated off load tap changing gear including first filling of new transformer oil of dilectric strength not less than 55 KV with all fitting and accessories such as LT box with cable gland, HT box with cable gland, Silica gel, breather, Oil level indicator gauge, drain out valve (oil tank),exhaust vent, air release valve, temp gauge, cast iron wheel etc comply with EEL 3, IS 1180 2014. Following items/ Accessories included in this rate complete all as specified and directed by Engineer-in-charge. (i) Name, rating & diagram plate (ii) Off circuit tap changing switch (iii) Earthling terminals (iv) Lifting lugs (v Oil drain valve with plug (vi) Oil filter valve with plug (vii) Conservator with oil filling hole (viii) Thermometer pocket (ix) Air release plug (x) Silicagel breather (xi) Removable inspection opening (xii) Explosion vent

Description all as per Srl item No 1 here-in-before but for transformer of capacity 100 KVA

Description all as per Srl item No 1 here-in-before but for transformer of capacity 63 KVA.

Notes for ser item No 1 to 3 :- (a).Taking down old existing transformer and placing new one as mentioned in above item. The same will be shifted to MES store yard as per direction by Engr-in-Charge. (b). The rate of above work will be deemed in quoted rate in respective items of BOQ. (c) The transformer oil shall be fresh and approval certificate from manufacturer shall be obtained by contractor and furnished to GE. the copper shall be 99.97% purity and approval certificate from manufaturer shall be obtained by contractor and furnished to GE. (d) Pre -commisioning, inspection of transformer shall be carried out by rep of Accepting offr and T&P for the inspection shall be arrange by contractor, cost of the T&P etc for testing shall deemed to be included in the unit rate.

Notes for ser item No 1 to 3(Contd....) :- (e) Construction of platform for transformer 2 mtr height x 2.5 mtr width x 2.5 mtr length including morum filling and PCC at top 10cm thick (1:2:4) and PCC foundation with 1:4:8(80cm width x 2.7 mtr length in square foundation 25cm height all as per drawing provided by the department including plastering to exposed walls and white wash. Providing MS Channel on top of size 75x40x8 mm of 1.5 mtr in length for rolling to transformer including chain link fencing of wire mesh 150x 100 size made out of GI Wire of height 1.5 mtr fixed with the help of MS Strip 25x6 mm and including MS angle 75x45x6mm thick nos post by means of drilling holes at the distance of 30 cm and fixed with the help of suitable nut, bolt and washer . The length of the MS angle iron not less than 2.25mtr , top of the pad to the shape of 60degree including 3 nos for inserting barbed wire including 03 runs of barbed wire and including provision of gate of size 1.5mx 0.9mtr made out of MS angle iron 50x 50x6 mm and MS bar 12 mm dia for meshing the gate and locking arrangements including PCC goundation 1:2:4 type B-1 for posts complete all as specified and directed by Engr-in-Charge shall deemed to be included in the unit rate. (f) Provision of 4 no rubber mats Synthetic 2mx1mx0.5m at near the surfaces of Plinth/platform of transformer shall deemed to be included in the unit rate. (g) Necessary chain link fencing required around transformer shall deemed to be included in the unit rate. (h) After completion of work all T&P used for opening, handling of transformer should be handed over to site-in-charge complete all as directed by engineer-in-charge.

M&L for earthing complete with Galvanized earth plate electrode 600 mm x 600mm x3.15mm thick buried directly in ground ( earth pit not less than 2.25 mtr below normal ground level ) with top edge plate not less than 1.5 metre below normal ground level and covered with alternate compact layer of comen salt and charcol dust, connected to Galvanized earth strip of size 20x3mm as earthing lead by means of bolts, nuts, chuck nuts and washers of Copper earth lead including PCC pit in PCC 1:2:4 type B-1 RCC cover made out of cement concrete 1:2:4 type B-1 (using 20 mm graded crushed stone aggregate) reinforced with TMT steel bars 8 mm dia @150 mm c/c both ways with suitable handle and angle iron 40x40x5mm frame, GI medium grade watering pipe 20mm bore and funnel with wire mesh light grade protection pipe 40mm bore up to main board complete as shown on electrical plate No 3 of MES Sch 2009 (Part-I) and connected to earthing test point all as specified and directed by Engr-in-charge. Note: On testing after completion of earthing, if desired earth resistance is not obtained, the earthing will be re-done by the contractor at his own risk & cost to the entire satisfaction of Engineer-in-charge. Note :-1. Cost of following items are deemed to be included in unit rate:-

Srl item No 6 Contd … (a) 15 mm nominal bore light grade GI protection pipe 7.5 mtr long for protection of earthing lead from mechanical injury or tempering. (b) Requisite quantity of common salt and charcoal. (c) Testing of earthing. Note : On testing after completion of earthing, if the desired earth resistance is not obtained, the earthing will be re-done by the contractor at his own risk and cost to the entire satisfaction of the Engineer-in-Charge.

Supply and fixing Galvanized strip 20 x 4mm with saddles and fixing screws etc. for roof conductors and down conductors above ground, complete, all as specified and directed by Engr-in-Charge.

Supply, laying, jointing and testing XLPE insulated, PVC outer sheathed, galvanised steel strips armoured, heavy duty power cable with aluminium conductor suitable for rated voltage of 11000 Volts grade earthed system and conforming to IS : 7098 of 1995 and of size 3 core X 95 Sqmm and laid in trenches/ducts/pipe or on poles complete, all as specified and directed by Engr-in-Charge.

M&L for heat shrinkable type end termination joint kit outdoor type suitable for XLPE insulated HT cable 11000 Volts grade of size 50 to 120 Sqmm 3 core complete with jointing material and acessories alongwith testing after jointing including taking out the old unserviceable joint kit complete, all as specified and directed by Engr-in-Charge.

Supply, laying, jointing and testing XLPE insulated, PVC outer sheathed, galvanised steel strips armoured, heavy duty power cable with aluminium conductor suitable for rated voltage of 1100 Volts grade earthed system and conforming to IS : 7098 of 1995 and of size 3.5 core X 300 Sqmm and laid in trenches/ducts/pipe or on poles complete, all as specified and directed by Engr-in-Charge.

Description all as per Srl item No 11 here in before but for 120 Sqmm x 3.5 core.

Supply, jointing and testing outdoor/ indoor End Termination cable joint heat shrinkable including all material and accessories suitable for XLPE cable of 1100 volts (E)grade size 300 sqmm 3.5 core complete, all as specified and directed by Engr-in-Charge. Note : Cost of Prepration of existing end and new thimble deemed to be included in unit rate.

Description all as per Srl item No 13 here in before but for 120 Sqmm x 3.5 core.

Excavating in trenches, not exceeding 1.5 m wide and exceeding 1.5 m in depth; for foundation, trenches for laying of cable etc. and getting out in any type of soil, complete all as specified and as directed by Engr-in-Charge.

Returning, filling in (soil) including spreading, levelling, watering and well ramming in layers not exceeding 25cm thick in any type of soil,complete all as specified and as directed by Engr-in-Charge.

Removing excavated material not exceeding. 50m and depositing where directed at a level n exc. 1.5 m above the starting point, complete all as specified and as directed by Engr-in-Charge.

Supply and lay DWC (Double wall corruguated) pipe 120x103 mm conforming to IS: 14930/ IS 16205 for protection of LT/HT Cable 95 sq.mm, ISI Marked, including necessary snap-fit coupler required for fixing complete all as specified & directed by Engineer-in-charge

Description all as per Srl item No 18 here in before but for 180 x 152 Sqmm.

Description all as per Srl item No 18 here in before but for 90 x76 Sqmm.

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