Repair/maintenance of Transformer, HT VCBs and replacement of unserviceable misc items of external electrification under GE 859 EWS.

Amount

Excavation in trenches not exceeding 1.5 meter wide and not exceeding 1.5 meter in depth for foundation of poles/laying of under ground cables etc and getting out in hard/dense soil complete all as specified and as directed.

All as per Srl item No. 1.00 above but depth exceeding 1.5 m and not exceeding 3 m complete all as specified and as directed.

Excavation in trenches n.exc 1.5m wide and n.exc 1.5m in depth and getting out in soft disintegrated rock (considered for road cutting), complete all as specified and as directed.

Returning, filling in including spreading, levelling, watering and well ramming in layers n.exc 25cm thick complete all as specified and as directed.

Removing excavated material n.exc 50m and depositing where directed at a level n.exc 1.5m above the starting point complete all as specified and as directed.

S&L graded coarse aggregate of nominal size 40mm, indoor/outdoor substation/ 2 pole/4 pole structure boundry all as directed.

S&F double wall corrugated HDPE duct pipe 110mm outer dia confirming to IS: 14930 (Part-II) of approved colour with fittings for cable protection complete all as specified and as directed.

S&L in trenches or fixed to pole or passing trough pipe XLPE insulated, screened, PVC bedded, galvanised steel strip armoured, overall PVC sheathed electric power cables (heavy duty) with aluminium conductor, 11000 volts grade (Earthed) cross sectional area 95 Sqmm 3 core incl dismentling / taking down unserviceable cable/ACSR conductor one. Make of Cable : Havells/Polycab/HPL/Grandley/Finolex

S&F Cable jointing kit for 11 KV (Earthed) 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 incl dismentling / taking down unserviceable one. Make : Raychem/Denson/M Seal/MS Seal

S&F Cable jointing kit for 11 KV (Earthed) grade cable for straight through heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95 sqmm incl dismentling / taking down unserviceable one. Make : Raychem/Denson/M Seal/MS Seal/3M

S&F GI tubing 100mm bore medium grade for cable protection under road crossing incl dismentling taking down unserviceable one. Make : Jindal Pipes / TATA / BST / Prakash Tubes / Oswal

S&F GI tubing 80mm bore light grade for cable protection on pole / trench incl dismentling taking down unserviceable one. Make : Jindal Pipes / TATA / BST / Prakash Tubes / Oswal

M&L for steel tubular swaged pole complete with cast iron base plate , finial taper plug bolts nuts and screws confirming to IS : 2713 and made out of structural steel tube confirming to IS: 1161 and painted internally with a coat of bituminous paint and externally one primer coat, one under coat and one finishing coat of aluminium paint as specified type 410 SP-55 (11 mtr long) including dismentling taking down unserviceable one all as directed and specified. Make : National Tubing Company / Kwality Steel Kolkata / Calcutta Poles / Bansal Poles / Jindal Poles

Dismetling and taking down old/unsv ACSR conductor any size complete all as specified and directed.

S&F ACSR conductor incl jointing with existing conductor and stringing on pole and proper fastening to insulators with aluminium binding wires and required jumpering connection including dismentling taking down unserviceable one all as specified and directed.

S&F Cross arms, bracings, supports, clamps and back plates fabricated from structural steel sections including nuts, bolts, washers, welding, bending cold or hot, drilling holes for bolts, in any shape or size as indicated or directed and inclusive of one primer coat, one under coat and one finishing coat of paint incl dismentling taking down unserviceable one all asspecified and directed.

S&F cradle hexagonal /rectangular fabricated with galvanised steel wire 4mm dia including dismentling taking out unsv Cradle goard from Pole, all asspecified and directed.

S&F for galvanised stay strand of size 7/4 mm including dismentling taking out unsv Stay wire from Pole, all asspecified and directed.

S&F Disc type insulator porcelain, vitrous 145mm high and 255 mm dia ball and socket type white, brown or green double disc with tension clamp for conductor for working pressure voltage 11000 V including dismentling taking out unsv one from Polesall asspecified and directed.

S&F pin type, porcelain, vitreous, brown, including one galvanised mild steel spindle, two galvanised iron washer and one galvanised iron nut, 150mm dia and 150 mm height for 11000 volts grade including dismentling taking out unsv one from Pole, all asspecified and directed.

S&F Loop type insulator, porcelian vitreous white, brown or green of size 90x140mm and clearence hole 25.5mm including dismentling taking out unsv one, all asspecified and directed.

M&L for Stay assy using 20mm dia rod complete with accessories as shown in electrical plate No 1 including dismentling taking out unsv one from Pole ( Stay assy, clamps, excavation, PCC measured separately), all asspecified and directed.

M&L for PCC (1:4:8) type D2 using 40mm graded aggregate as in foundation for filling in, mass concrete for pole, stay and transformer foundation complete all as specified and directed.

M&L for PCC (1:3:6) type C1 using 20mm graded aggregate as in coping of new pole / repair to existing coping etc including necessary form work complete all as specified and directed

PCC (1:2:4) type B-1 using 20mm graded aggregate as in coping of new pole / reconstruction old damaged copings etc, including necessary form work complete all as specified and directed

S&F Switch Air break, gang operated, tripole pole, mechanically operated mounted on insulator of size 150mm dia and 150 mm height and steel frame with operating mechanism worked from ground level for current rating upto 200 Amps, 11000 Volts with locking arrangement complete incl dismentling taking down old unserviceable one all as specified and directed.

S&F expulsion type drop out fuse, single pole, 11000 volts, 25 amps complete with insulator 150mm dia and 150 mm height incl dismentling taking down old unserviceable one all as specified and directed.

Earthing complete with galvanised steel earth electrode plate of size 600x600x6mm thick, buried directly in ground (earth pit nbot less than 2.25m deep below normal ground level) with top edge of the plate not less than 1.50m below notmal ground level, connected to galvanised iron earth strip 32x6mm upto test point with suitable GI nuts/bolts and brazed properly up to main board including earth pit in cement concrete 1:2:4 type B-1, precast RCC cover in 1:2:4 reinforced with expanded metal, with suitable handle, excavation and earth work in any type of soil and including light grade GI watering pipe 20mm bore with funnel wire mesh and medium grade GI wire protection pipe 40mm bore up to main board completew as shown in electrical plate No 3 of MES schedule Part-I 2009, connected to earthing testing point including taking out existing unsv earthing complete ass as specified and testing on completion complete ass as specified and directed by Engineer-in-charge. Note - The units rate including the cost of excavation & earth work in any type of soil, charcoal & salt in alternate layers, 20mm GI pipe (light grade) for watering 40mm GI protection pipe (medium grade) funnel wire mesh PCC chamber in PCC 1:3:6 type C-1 cast iron frame and 40mm thick RCC cover for pit etc & no extra payment will be made.

M& L for painting of HT steel tubular pole including cross arm/ bracing/clamps complete with one coat of aluminum paint incl cross arm, bracings, supports, nuts, bolts, of HT OH line from above copping to top of pole, all asspecified and directed.

M/L for trimming of branches of trees touching HT electric over head line by climbing up tree or using ladder at a height not less than 9.5 mtr from GL and making clear about 3 mtr in radius and carrying and depositing where directed not exceeding 50 mtr, all asspecified and directed.

Supply only the following spares of Crompton Greaves make HT Vaccume Circuit Breaker (for replacement against item in before) :- (a) Resin Cast current transformer of ratio 50/25/5-5A dual ratio one of metering of Class-1 and other for protection of 5P Class suitable for 12 KV Voltage and rear fixing type suitable for HT VCB 11 KV Make : CG

(c) Volt Meter suitable for HT VCB 11 KV Make : CG

(d) Fuse (16/10/6/2) Amp suitable for HT VCB 11 KV Make : CG

(e) Indicating Lamp suitable for HT VCB 11 KV Make : CG

(f) Motor Charging Cut limit switch suitable for HT VCB 11 KV Make : CG

(g) Motor Charging Mechanical Assembly suitable for HT VCB 11 KV Make : CG

(h) Motor Charging closing and indication limit switch suitable for HT VCB 11 KV Make : CG

(i) Tripping catch leaver spring suitable for HT VCB 11 KV Make : CG

(j) Vaccume 630 Amp 350 MVA suitable for HT VCB 11 KV Make : CG

(k) Big Gear charging suitable for HT VCB 11 KV Make : CG

(l) Small gear charging suitable for HT VCB 11 KV Make : CG

(m) Rack n out horizontal VCB with berm shaft wheel complete suitable for HT VCB 11 KV Make : CG

(n) TNC Switch suitable for HT VCB 11 KV Make : CG

(o) DC Diod suitable for HT VCB 11 KV Make : CG

(p) Charging Handle suitable for HT VCB 11 KV Make : CG

(q) Rack n out handle suitable for HT VCB 11 KV Make : CG

(r) Tripping and closing coil 110 Volt DC suitable for HT VCB 11 KV Make : CG

(s) Mechanic charging spring suitable for HT VCB 11 KV Make : CG

(t) Mechanical inter locker 2 IC/1 Bus coupler for VCB suitable for HT VCB 11 KV Make : CG

(u) Trip Shaft for vertical VCB suitable for HT VCB 11 KV Make : CG

(v) Free lock push trip shaft attach assembly suitable for HT VCB 11 KV Make : CG

M&L for replacement of spring charging motor, AC 230 volts suitable for existing HT VCB Panel.

M & L for topping up/replacement of transformer oil with new transformer oil suitable for working voltage 11000 volts grade including necessary dehydration to achieve dielectric strength min 40 KV at 4mm gap complete all as specified and directed. Make – Power / GULF/Castrol/ HP /IOC /Savita .

M & L for filtration/dehydration transformer oil of transformer voltage grade 11/0.433 KV, capacity 63 KVA to 2.5 MVA indoor/outdoor type, pole mounted / plith mounted installed at various electric sub station/ pump housed at AOR of AGE E/M in situ till achieve dielectric strength min 40 KV all as specified and directed.

M & L for replacement of silicagel grains in the breather assembly of transformer complete all as specified and directed.

M&L for openning of top cover in situ or at wksp by unscrewing all nuts, bolts & washers, daining out transformer oil upto required level and keeping in clean container for replacement of HT/LT bushings, for lifting of core assy, for cleanning/repair and refixing complete with new cork sheet gusket, existing/new nuts, bolts & washers for transformer indoor/outdoor type, refilling of oil all as specified and directed. (Note:- HT/LT bushings, Studs, Nuts, bolts & washers required new mesured here-in-after as separate item.) for transformer capacity upto 63 KVA to 400 KVA, 11/0.433 KV volts grade.

M&L for replacement of transformer porcelain bushing outdoor/indoor type in situ/wksp suitable for 11 KV grade complete with brass stud, rubber bush, washers, nuts, checknuts and cork sheet gasket for the rating of 63 KVA to 400 KVA, 11/0.415 KV transformer complete all as specified and directed. Note:(a) Opening of top cover measured separately

M&L for replacement of transformer LT porcelain bushing indoor/outdoor type in situ/wksp suitable for 1100 volts grade complete with rubber bush, washers, nuts, checknuts and cork sheet gasket for the rating of 63-200 KVA, 11/0.433 KV transformer complete all as specified and directed. Note:(a) Opening of top cover measured separately. (b) Brass stud measured separately

All as per item No-60 here-in-before but for transformer capacity 250-400 KVA,

M&L for replacement of brass stud suitable for LT 1100 volts grade with con & rubber washer, double Brass nuts & brass washer at both end of stud for Tr cap 63-200 KVA

All as per item Ser No-62 here-in-before but for transformer capacity 250-400 KVA

M & L for lifting up carefully transformer core after dismentling carefully terminal connections from core to HT/LT bushings, tap changer assy, drainout all oil and keeping in clean container, dismentling all HT & LT coils from core for rewinding, and reassembling complete with HT/LT coils to core, required necessary numax paper insulation, insulating press board, precompressed board size of 6mm/3mm/1.5mm/1mm, vernishing, heating to achive insulation level not less than 1000 megaohms at both HT & LT side, core at transformer chamber, tap changer assy, terminal connection, top cover with new cork sheet gusket, required existing/new nuts, bolts & washers, filling transformer oil, testing after repair complete all as specified and directed for the 63-400 KVA, 11/0.415 KV transformer. (Note:- Opening of top cover, Rewinding of HT/LT coils, transformer oil, nuts, bolts & washers, HT/LT busings, required new mesured separately under appropriate item)

M&L for rewinding of HT coils suitable for 11000 volts grade with new DPC/super enamelled copper wire having Class-F insulation as per existing size and turns for capacity of transformer 63-400 KVA

M&L for rewinding of LT coils suitable for 1100 volts grade with new DPC /super enamelled copper strip having Class-F insulation as per existing size and turns for capacity of transformer 63-400 KVA

M&L for rewinding of LT coils suitable for 1100 volts grade with existing DPC /super enamelled copper strip having Class-F insulation as per existing turns for capacity of transformer 63-400 KVA

M&L for painting of transformer outer surface installed at various electric sub station/ pump houses at Tenga Grn, in situ/wksp with one coat of synthetic enamel paint using sprayer for transformer capacity 63-400 KVA after preparation of old painted surface including writing M/C No. (Note : (i) During process of painting, transformer will be under shut down for the period and the rate deemed to be included for running the sprayer machine with own arrangement by contractor. (ii) After completion of painting HT/LT outdoor bushing, cable termination joint, Oil inspection glass and name plates to be made clean using volatile cleanner)

S&F MCCB 400 Amps 4 Pole, 36 KA, 415 V, 50 Hz and connecting up in the existing panel location including taking out existing unserviceable MCCB complete all as specified and as directed by Engineer-in-Charge. Make- Havells/L&T/Schneider/Legrand

All as per item No 70.00 here in before but MCCB 250 Amps 4 Pole, 36 KA, 415 V, 50 Hz complete all as specified and directed.

All as per item No 70.00 here in before but MCCB 200 Amps 4 Pole, 36 KA, 415 V, 50 Hz complete all as specified and directed.

All as per item No 70.00 here in before but MCCB 100 Amps 4 Pole, 36 KA, 415 V, 50 Hz complete all as specified and directed.

S&F On load change over switch, four pole with advance neutral 200 Amps, 415 V, 50 Hz conforming to IS : 13947 Part-3 connecting up in separate SS enclosure including taking out existing unserviceable change over switch complete all as specified and directed. Make : Havells / L&T / Schneider

S&F On load change over switch, four pole with advance neutral 125 Amps, 415 V, 50 Hz conforming to IS : 13947 Part-3 connecting up in separate SS enclosure including taking out existing unserviceable change over switch complete all as specified and directed. Make : Havells / L&T / Schneider

M/S T D Enterprises

KAILSON