PROVISION OF E n M ALLIED SERVICES AT ADA CAMPUS II UNDER GE I RnD EAST BANGALORE

Amount

Supply, installing, testing and commissioning of OUTDOOR type step down transformer of capacity 1000 KVA, 11KV/433V, 3 phase, 50 HZ, ONAN cooled oil immersed double copper wound, AC , 3 phase 50 Hz capacity step down, outdoor copper wound type complete with first filling of IS : 335 ISI marked and dehydrated transformer oil with standard fittings , HT 11 KV 3 phase , LT 433 volts, 3 phase 4 wire with off load tapings on LT side to vary secondary voltage within limit, all as per IS: 1180 part-I of capacity 1000 KVA core type copper wound, oil immersed, naturally cooled, oil natural, air natural (ONAN) with external cooling tubes/fins delta connected on primary side (HV) and star connected on secondary side(LV) in accordance with vector symbol DYN-11(Vector group)with neutral brought out on secondary side (LV side ) and 7 position OFF circuit tap changer having tapping range at ±7.5% in steps of 2.5% each on HV side to be changed by means of hand operated off load tap changer gear. The temarature rise shall be 40°C in oil and 45°C in winding over ambient temperature. The transformer shall be IS 1180:2014 with amendment Serial Nos 1,2,3&4 markedmarked and shall comprise of the following :- (a) 3 Nos porcelain bushing with arcing horn on HV side suitable for 11 KV complete with bushing, copper rods, nut and washers. (b) one cable box on LT side (secondary side ) consistingof 04nos of porcelain bushing with copper rod , complete with nuts and washers with two numbers cable glands suitable for reception/taking out of XLPE insulated heavy duty armored cable including glands, joints and jointing material complete. (c) Oil conservator with filter type drain valve and oil level gauge (d) Dehydrating breather with first fills dehydrating agents (Silca gel)

Item No. 1 (Contd...) (e) one cable box on HT side (Primary side ) consisting of 03 No of porcelain bushing with copper rod , complete with nuts and washers with 02 nos of cable glands suitable for reception/taking out of XLPE insulated heavy duty armored cable including glands, joints and jointing material complete. (f) explosive vent (g) thermometer pocket on tank cover (h) Oil temperature indicator of size 150mm with trip contact and winding temp indicator of size 150mm with trip contact as per OEM design (j) Two earthing terminal on tank cover to facilitate fixing of 32x6 mm GI earth strip for earhting of neutral and body. (k) Rating plate and terminal marking plate. (l) Oil level gauge (m) Oil drain filter valve (n) lifting legs (p) Oil filling holes with cap/plug with connecting plate complete (q) Air release valve plug (r) Four plain solid cost steel detachable rollers (s) Extra bushing for neutral, outside LT cable box for proving independent earthing for neutral (t) First filling new and unused transformer oil IS-335/93(fourth version) marked (make -Savita/power oil) filtered and tested upto 40 KV dia-electric strength at 2.5mm air gap between testing eletrode. (u) Buchhloz relay with alarm and trip contacts (v) Marshalling Box (w) One danger notice board having conventional danger sign of skull with bones duly painted with red colour (x) PCC platform of suitable size and depth for 1000KVA transformer with PCC 1:3:6 Type C1 using20mm graded aggregate Note : Certificate of die electric strength shall be submitted by the contractor after filling the oil.

M & L for copper earthing complete with copper earth plate electrode 60cm x 60cm x 3mm thick buried directly in ground (earth pit not less than 2.25 mtr deep below ground level) with top edge of the plate not less than 1.5 mtr below normal ground level, connected to and including copper earth strip of 20x3 mm by means of rivetting and brazing and protected by GI pipe light grade of 40mm dia up to the test point i.e. up to 7.5 mtr, including providing alternate layers of charcoal and common salt of 15cm depth all around the plate including PCC pit chamber, watering pipe of 20mm dia medium grade GI pipe up to the top of the plate having funnel complete and RCC cover, connecting to the test point and testing on ground complete and including excavation and earth work in any type of strata and cleaning of site all as specified in electrical Plate No. 03 of MES SSR Part-I and directed by Engineer-in-charge. Note :- The cost of main copper strip of size 20x3mm and GI pipe upto 7.5 mtrs shall deemed to include for the rate quoted

Supply install testing and commissioning of 11 KV outdoor type 05 Way RMU estensible IP 54 floor mounted with internal copper bus bars consisting of fixed type motorised vaccum circuit breaker for incomer - 01 No and out going -04 Nos along with air insulated metering module. all live parts, bus bars of RMU should be enclosed in tank to avoid multiple interconnections and sealed for life robotically for three sides and one side manual welded non magneti / non ferrite /stainless steel tank grade 304 of minimum 2 mm thick having IP 67 degree of protection filled with SF6 gas to full fill the requirement as per IEC 60376 & 603760 B as insulation with leakage rate less than 0.1 % per year tested as per IEC 62271-200. The unit shall have front cable entry for ease of installation. RMU should complte with all accessoris such as terminal boots, VPIS cable supports all fron cable termination, mechanical indications, ON/OFF , Manometer as per IEC standards 62271-200,60056,60129,60265,60298, 60420,60529 and 60694. Altitude of installatio upto 1000m as per IEC 60120 bushing bolted type as per OEM design. The unit rate quoted shall include the following with all necessary standard fittings required at site . RMU should be tested for an internal arc fault of 21 KA for 1 sec for tank holding the HV components and cable box and paint shade and thickness should be as per IS 632,

Item No. 4 (Contd...) 630 Amp load break switch module for making of fault current eath switch of full making capacity-01 Nos as incoming. Short time withstand current -21 KA/3 Sec Making Capacity- 52.5 KA, Auxillary contacts - 01 Nos + 1 NC Power frequency withstand voltage -38 KV Impulse with stand voltage-95 KV, Nominal operating gas pressure - 1.4 Bar abs, Front cover mechanism - IP2X, Cable cover 3X, Snap action mechanism for manual operation, Cable box for front termination of the cable suitable 11 KV XLPE cable, Right angle boots (push on type)Suitable cable bushings for fron tonly cable terminations, Arc proof cable covers with self intelocking mehanism with earth swithh 630 A VCB module fo rmaking and breaking of fault current alongwith earth switch of full making capacity as outgoing 04 way . Vaccum circuit breaker shall be having spring charged stores mechanism suitable for motorized operation 24V DC. Opening & closing coils -24 VDC. Three position single spring mechanism for disconnector / earthing switch. Live cable LED indicators through capcaitor voltage dividers mounted on the bushing. Short time breaking current - 21 KA /3 Sec making capacity-52.5 KA, Auxillary contacts -06 Nos + 6 NC. Power frequency withstand voltage-38 KV. Impulse withstand voltage - 95 KV. Nominal operating gas pressure-1.4 bars. Front cover mechanism-IP 2X. Cable covers -3X. Green (ON)/Red (OFF) push buttons to operate the VCB. Self powered Numerical protection relay with low and high set for over current and earth fault. RMU tanks shall be tested for an internal arc fault of 21 KA for 1 Sec & No of electrical operating cycles shall be 2000 Cycles and short circuit cycles shall be 50 Resin cast ring core protection CT on cables 100-50/1, 5P 10, 2.5 VA -02 Nos. Resin cast ring core metering CT on cables 100/1 A, cl 1.0,2.5 VA-02 Nos . Mechanical ON/OFF/EARTH/ spring charge indication. Cable boxesshould be ARC proof interlocked with respective earthing switches. Note: The rate quoted shall deemed to include for PCC platform as per OEM design

Supply, laying, jointing and testing, XLPE insulated, armoured, heavy duty, electric HT UG cable 240 Sqmm 3 Core with multi stranded aluminium conductor, 11000 Volts grade, earthed grade laid in trenches or in duct/passed through pipes or fixed to walls/poles etc complete as specified

Supply, laying, jointing and testing, XLPE insulated, armoured, heavy duty, electric HT UG cable 120 Sqmm 3 Core with multi stranded aluminium conductor, 11000 Volts grade, earthed grade laid in trenches or in duct/passed through pipes or fixed to walls/poles etc complete as specified

Supply and fixing cable joiniting kit for 11 KV (earthed) grade cable for indoor termination cold shrink type joint complete with jointing materials and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 240 sqmm to 300 Sqmm complete all as specified and directed by Engr- in charge.

Supply and fixing cable joiniting kit for 11 KV (earthed) grade cable for indoor termination cold shrink type joint complete with jointing materials and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 sqmm to 185 Sqmm complete all as specified and directed by Engr- in charge.

Supply & laying Synthetic Insulated Mats of size 2.00 x 1.00 x 3.00 mm thick suitable for upto 33 KV grade all as directed.

Supply and fixing copper earthing strip of size 20 x 3 mm for connection from earth test point to equipment with help of complete brazing etc.

Excavation in trenches not exceeding 1.5 mtr wide and not exceeding 1.5 mtr deep for foundation etc for laying of cables, erection of poles, struts/stays etc not exceeding 10 sqm in hard /dense soil complete all as specified.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exceeding 25cm thick of excavated soil complete all as specified and as directed. Note: A deduction of 10% shall be made from total computed volume of filling to cater in bulk irrespective of machinery used for ramming.

Removal of excavated material [Soil] to a distance not exceeding 50 m and depositing where directed at a level not exceeding 1.5m above the starting point complete all as specified and as directed.

M&L for river washed sand, sreened dry for filling in the trenches below and around the UG cable for cushioning of cable including punning down complete all as specified and directed.

M & L for Un- reinforced pre cast concrete covers class HV type 300mmx 180mm x 40mm size factory made for cable protection complete all as specified and directed.

Supply and fixing GI pipe light grade 100 mm dia for protection of HT/LT cable under road or on wall all as specified and directed .

Supply and fixing GI pipe light grade 150 mm dia for protection of HT/LT cable under road or on wall all as specified and directed .

M&L for cutting of black top cover of existing road up to 1 mtr depth and 60 cm wide for laying of UG cable and pipe line, refilling and making good after laying UG cable and pipe line with PCC 1:3:6 uptp 30 cm from top of the road surface comple all as directed by EIC.

Supply and fix cable route indicator comprises and made out of PCC pole (0.3 x 0.3 x 1.5mtr) on HT cable 1mtr in depth grouted in the ground with suitable PCC 1:3:6 concrete base with writing HT CABLE / JOINT complete all as specified and directed.

Material and Labour for boring under roads, pavement hard standing by trenchless technology using ultra sounding technique and necessary machine including HDPE pipe of 150mm dia suitable for 0.4 mpa working pressure allas specified and directed

Lucky Enterprises

devan enterprises

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