80993 PROVISION OF STANBY TRANSFORMER AT VIJAY NAGAR, ICGS HUTBAY

Amount

Supply, installing, commissioning and testing of outdoor type HT 11KV, three phase 50 cycles, oil immersed naturally air cooled, core type LT 433 volts, step down copper wound 160 KVA capacity transformer in accordance with vector group Dyn ll with neutral brought out on LV side as per IS 1180 including all fittings and consisting of the follwing accessories complete all as specifiede and directed :- (a) Rating plate and terminal marking plate. (b) Two earthing ternminals for body earthing and two additional for neutral brought out on a bushing. (c) Lifting lugs. (d) Drain valve with plug or cover plate. (e) Dehydrating breather. (f) Oil level indicator with minimum and maximum marking. (g) Cooling Radiator. (h) Thermometer pocket. (Item No.1 Contd.../-)

(Item No.1 Contd.../-) (j) Conservator. (k) Oil filling hole with cover. (l) Air release device with conservators. (m) Filter valves. (n) Rollers as per manufacturer's design. (o) Thermometer dial type. (p) First fill of transformer oil (q) Explosing vent. (r) LV Cable terminating box. (s) LV neutral bushing brought outside for direct earthing. (t) HT cable end box. (u) Any other fittings as recommended by the manufacturer and as directed by the GE. Note :- (i) The Transformer shall be got inspected and tested at site by the SEI/rep nominated by the Accepting Officer and the records of the testing shall be signed by the rep of Accepting Officer, GE, Engr-in-Charge and the contractor. (ii) All the arrangments and testing equipments etc for testing as per note above shall be provided by the Contractor and cost of the same shall be deemed to be included in the contractor's quoted rates. (iii) Payment shall be made after installation of transformer and satisfactory completion of preliminary testing by Eng-in-Charge

Supply, laying in trenches/ duct or fixed to wall / fixing on pole with suitable size of MS clamp and testing cable HT under ground XLPE insultated screened PVC bedded galvanized steel stip or wire armoured, electric power cable, heavy duty with aluminium conductor suitable for 11 KV grade (Earthed) cross sectional area 95 sqmm, 3 core all as specified and directed.

Supply & fix out door type cable end termination heat shrink for 11 KV (Earthed) grade cable of size 3 core, 95 sqmm XLPE insulated armoured aluminium conductor with jointing material and accessories all as specified and directed.

Supply, laying, connecting charging, testing and commussioning LT cable electric 150 sqmm 3.5 Core XLPE insulated armoured pvc sheathed, heavy duty 1100 volt grade with standed aluminium conductor conforming to IS : 7098, laid in trenches/ ducts/ fixed to wall / roofs of following size including cable gland and lugs on both ends of the cable.

Supply, installing testing and commissioning of indoor cubical type LT panel dust and vermin proof, made out of 2mm thick CRCA sheet duly powder coated with free standing frame made out of 50x50x6 mm angle iron. The panel box shall be suitable for 3 phase 4 wire system, 440 Volts, 50 Hz duly prewired for MCCB's and single core PVC insulated muti-stranded copper conductor 1100 volts grade, copper bus bar of capacity 1.5 times rating of MCCB, the panel shall have detachable gland plate for entry of 3 nos cables of size up to 150 sqmm. The panel shall for comprise of following items:- (a) MCCB four pole 250 Amps, 415 Volts 35 KA - 2 Nos (incoming & outgoing) (b) RYB panel indicators - 6 Nos (c) Trivector meter three phase four wire TVM 240 Volts, 5A class 0.5 Note:- (i) The contractor shall submit general layout diagram of the panel and get approval from GE before fabrication. (ii) The panel shall be got manufactured from CPRI approved manufacturers.

Danger notice plate HT of size 25x20cm & 1.6mm thick mild steel sheet, vitreous enamelled white, with letters, figures and conventional skull and bones in signal red colour and fixed and fixed with MS clamps, bolts and nuts of approved size.

Supply and fixing trolley of size not less than 3000 x 1800 x 2300mm suitable for fixing of outdoor type 160 KVA transformer as specified hereunder. Trolley shall be made up of ISMC 100 as main chassis, ISMC 75 main support channels, 6mm thick MS plae as floor, welded wire mesh of size 50x50 mm with 6mm wire as inside wall and door duly fixed to frame work. Door fixed with suitable hinges and locking arrangement. Trolley shall be covered with galvalume sheet roofing / canopy with pre-painted galvalume steel sheets of trapezoidal profile having pitch 190mm, depth 29mm and thickness 0.5mm having tensile strength of 550 MPa, fixed with aluminium self tapping screws, neoprene and EPDM washers of suitable size and using ISA 50x50x5mm frame work. Trolley shall be mounted on 2 Nos of 63mm square axles, provide with 02 Nos of double plated rims with tyres of size 7-50/16 including duty/rubber tubes including one spare tyre with rim of same size sutably mounted on to the trolley. Axles shall be fitted with leaf spring suspension system. The trolley shall be capable of carrying 4 Tone minimum forged steel toe hook. Provision for tying HT & LT cables, including GI Earth strip of 32x6mm, 2 Nos connected from transormer Nutral and 2 Nos from Transformer body and shall be terminated on the side of trolley with suitable insulator blocks and all other accessories as per manufacture specification

Earth coninuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/ pipe or fixed to poles or any other indicated situation for loop earthing of 6 sqmm area aluminium wire all as specified and as directed.

OPS Associates

SHUSHANT ASSOCIATES