SPL REPAIR ADDN ALTERATION OF BER TRANSFORMERS ALONGWITH CONNECTED ACCESSORIES AT CERTAIN LOCATIONS UNDER GE S MAMUN AT MAMUN MIL STATION

Amount

Supply, installation, Testing, Commissioning of Oil Cooled, Copper wound, Step down "BIS marked & BEE star labelled " transformer of capacity 160 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 with latest amendment including taking down of old transformer of any capacity and deposit to MES yard. Following items/ Accessories included in this rate, therefore No any extra cost will be paid for this items 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) Silica gel breather, (xi) Removable inspection opening, (xii) Explosion vent

Supply, installation, Testing, Commissioning of Oil Cooled, Copper wound, 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 with latest amendment including taking down of old transformer of any capacity and deposit to MES yard. Following items/ Accessories included in this rate, therefore No any extra cost will be paid for this items 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) Silica gel breather, (xi) Removable inspection opening, (xii) Explosion vent

Supply, installation, Testing, Commissioning of Oil Cooled, Copper wound, Step down "BIS marked & BEE star labelled " transformer of capacity 315 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 with latest amendment including taking down of old transformer of any capacity and deposit to MES yard. Following items/ Accessories included in this rate, therefore No any extra cost will be paid for this items 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) Silica gel breather, (xi) Removable inspection opening, (xii) Explosion vent

Supply, installation, Testing, Commissioning of Oil Cooled, Copper wound, Step down "BIS marked & BEE star labelled " transformer of capacity 63 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 with latest amendment including taking down of old transformer of any capacity and deposit to MES yard. Following items/ Accessories included in this rate, therefore No any extra cost will be paid for this items 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) Silica gel breather, (xi) Removable inspection opening, (xii) Explosion vent

Supply, laying in trenches or fixed to wall/pole or passing through pipe or road crossing, testing and commissioning HT XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armoured, suitable for earthed system, electric power cables (heavy duty) with stranded aluminium conductor, 11KV (Earthed) grade, of size 95 Sqmm 3 core including taking down unserviceable HT cable of any type/size/description etc complete all as specified and directed. (Note: Excavation & Earthwork shall be measured and paid seprately).

Supply, laying in trenches or fixed to wall/pole or passing through pipe or road crossing, testing and commissioning HT XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armoured, suitable for earthed system, electric power cables (heavy duty) with stranded aluminium conductor, 11KV (Earthed) grade, of size 120 Sqmm 3 core including taking down unserviceable HT cable of any type/size/description etc complete all as specified and directed. (Note: Excavation & Earthwork shall be measured and paid seprately).

Supply and fix cable jointing kit for 11 KV grade cable for termination outdoor, heat shrinkable type joint complete with jointing material and accessories suitable for XLPE armoured aluminium conductor cable of size 120 Sqmm to 180 Sqmm 3 core with voltage 11000 volts (Earthed) with jointing material and accessories including testing complete all as specified and directed.

Supply and fix cable jointing kit for 11 KV grade cable for termination outdoor, heat shrinkable type joint complete with jointing material and accessories suitable for XLPE armoured aluminium conductor cable of size 50 Sqmm to 95 Sqmm 3 core with voltage 11000 volts (Earthed) with jointing material and accessories including testing complete all as specified and directed.

Supply and fixing of lightning arrestor non liner resistor type comply with IS 3070 Part -I 1985 for alternating current system multiple spark gap suitable for voltage grade 11000 volt discharge cap 65 KA complete fixed "as in repairs" including taking down old existing one complete all as specified and directed.

Excavation in trenches in any type soil n. exc. 1.5 Mtr in width and not exceeding 1.5 Mtr in depth, n.exc 10 Sqm on plan and getting out all as required for laying of cable/ poles complete all as specified and directed.

Removing excavated material to a distance not exceeding 50 mtr and deposting where directed at a level not exc. 1.5 mtr 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 each all as required complete all as specified and directed.

Sand cushioning to under ground cable laid in trenches for laying of HT/LT UG cables 8 cm wide before laying the cable and 15 cm after laying and punned down to a depth of 10 cm as per MES SSR Part-I (2509) all as specified and directed. Note: Punned thickness shall be measured and paid to the contractor.

Supply and laying unreinforced precast cement concrete cable cover, class HV, type 1 with peak, size 300mm x 180mmx 40mm for protection of cable abutting each laid dry flat width equal to the length of cable cover complete all as specified and directed.

M&L for earthing with steel earth plate electrode of size 60cmx60cmx6mm thick buried directly in ground to a depth not less than 2.25 mtr deep below normal ground level with top edge of the earth plate not less than 1.5 mtr deep below normal ground level connected to galvanized iron strip of size 32x6mm as earthing lead by means of nuts, bolts and washers of steel after welding of GI strip to earth electrode to the full lenght of earth plate,40mm dia GI tubing light grade protection pipe upto test point, 20mm dia GI medium grade watering pipe with funnel and wire mesh, PCC pit 1:3:6 with pit cover of size 30X30cm made of RCC 1:3:6 with suitable handle,angle iron frame made of angle iron of size 40x40x4mm, adequate qty of charcoal dust and salt layers all around the earth plate and filling of vegetable soil to the remaining 10%,removal of surplus soil and returning filling in all as required at site including test point made out of steel plate of size 75x75x6mm fixed to wall all as specified in electrical plate No 3 of SSR Part-I and directed by Engr-In-Charge. Note:- (i) Item includes the cost of 7.5 metre GI pipe for protection of earth strip (ii) Item includes the cost of 7.5 metre GI earth strip

Material and labour for earthing with copper plate electrode of size 60cmx60cmx3.15mm thick buried directly in ground to a depth not less than 2.25 mtr deep below normal ground level with top edge of the earth plate not less than 1.5 mtr deep below normal ground level connected to copper earth lead strip of size 20x3mm as earthing lead by means of nuts, bolts and washers of steel after welding of GI strip to earth electrode to the full lenght of earth plate, 40mm dia GI tubing light grade protection pipe upto test point, 20mm dia GI medium grade watering pipe with funnel and wire mesh, PCC pit 1:3:6 type C1 in chamber with precast RCC cover 50mm thick in cement concrete 1:2:4 Type B1 reinforced with welded steel wire fabric or XPM (wt not less than Kg/Sqm) with cast iron frame, funnel with wire mesh, 20mm bore GI pipe medium grade watering pipe, lugs, 40mm bore GI pipe light grade protection pipe upto 7.5m and adequate qty of charcoal dust and salt in each layers of 15cm all around the earth plate, removal of surplus soil and returning filling in all as required at site including test point fixed to wall all as specified in plate No 3 of SSR Part-I and directed by Engr-in-Charge. Note: Item includes the cost of earth lead and GI protection pipe upto 7.5m. Copper strip beyong 7.5m shall be measured and paid separately.

Supply and fixing of cross arm, bracings, supports, clamps and chequered steel back plates, angle iron equal size or any size fabricated from steel section including nuts, bolts, washers, welding bending cold or hot drilling holes for bolts in any shape or size for cover for cable duct any size and holding of two pole strucures, GOD, street light GI bracket, junction boxes and fabrication of anti climbing devices, other works etc as indicated or directed and duly painted with synthetic enamel aluminium/smooke grey paint over a coat of primer fixed "as in repairs" complete all as specified and directed.

Material and labour for construction of platform for transformer of size 3.00m X 2.50m X 1.20 m high from natural ground level with PCC (1:4:8) in foundation, 100mm thick PCC (1:2:4) type B-1 at top portion of platform, brick work with cement mortar (1:4) and complete 15mm thick rendering in CM (1:4) for exposed surface including neccessary MS work (i.e chain link fencing and gate fixed on angle iron post) on the top of platform around transformer up to height 1.2 m and one coat of white wash on plastered surface shown on drawing No CEPZ/TD/350/08 sheet 1/2, including dismantling of old platform complete all as specified and directed.

M/s Trade Linker Associates (BID ID -3445115)

SAINI AND SAINI BUILDERS (BID ID -3444624)

Ashoka Engineers (BID ID -3443574)

KULBHUSHAN AGGARWAL (BID ID -3440587)

Roy and Sons Infrastructures (BID ID -3445191)

JCC ENGINEERS PRIVATE LIMITED (BID ID -3440149)

KEWAL SONS (BID ID -3444627)

Vijay Kumar Contractor and Engineers (BID ID -3443510)