PROVN OF INDEPENDENT 11 KV FEEDER TO MILITARY HOSPITAL (MH), MEERUT FROM SHIVAJI LINE MRS UNDER AGE E/M (ES) AT GE (U) MEERUT CANTT

Amount

Supply, Installation, testing, and commissioning of 11KV Extensible Outdoor duty (IP54 enclosure) SF6 gas insulated 4-way motor operated Ring Main Unit comprising of 2nos. 630Amps Load Break Switches and 2No, 630Amps Vacuum Circuit Breaker, cable termination from the front, breaking capacity 21KA/3sec (Internal Arc Classification A FLR 21kA-1sec both for tank and cable box as per IEC 62271-200), enclosed in robotically welded stainless steel tank having IP 65 Degree of Protection as per IEC 60529, leakage rate of SF6 gas less than 0.1% p.a (Per Annum) and tested as per IEC 60056/60694/60298. The switchgear shall accommodate all the 4 modules in one tank. Protection CTs should be ring core type. Cable bushings should be replacable at site. Complete all as specified and directed Engr-in- Charge. Make of RMU should only be: SIEMENS (8DJH-ST)/ SCHNEIDER (FBX)/ Equivalent in ABB).

(A) NOTE:- Others details:- System Particulars: (i) Nominal System Voltage : 11kV. (ii) Voltage variation on supply side : ±10 % (iii) Corresponding Highest System Voltage: 12kV. (iv) Frequency : 50 Hz with ± 3 % tolerance (v) Transient condition : -20 % or + 10 % combined variation of Voltage and frequency. (vi) Number of Phase : 3 Phases. (vii) Neutral earthing : Solidly earthed. (viii) Fault level (minimum) kA /Sec : 21/3). (ix) Lightning Impulse Withstand Voltage (kVp) : 75 (x) One minute dry/wet power frequency withstand voltage primary (kV rms) : 28KV (xi) Rated Dynamic Withstand Current for 1 second duration (kAp) : 52.5KA

(B) Applicable Standards for this RMU scope of work (i) The design, manufacture and performance of the Ring Main Units shall comply with all currently applicable statutes, regulations and safety codes.Nothing in this specification shall be construed to relieve the bidder off his responsibilities. (ii) Unless otherwise specified, the Ring Main Units offered shall conform to the latest applicable, IEC 62271-100, IEC 62271-200. (iii) All live parts, bus bars, shall preferably be enclosed in one tank to avoid multiple inter connections & sealed for life robotically welded non magnetic and non ferrite grade stainless steel tank Grade SS304 of minimum 2.5 mm thickness.The RMU shall be type tested for internal arc test of 21KA/1 sec AFLR as per IEC62271-200. The outer enclosure shall cover the full length of the switch gear, to ensure IP54 protection for full door covering of complete switchgear. The protection relay shall be for 3 O/C + 1E/F (IDMT Type) Self powered numerical protection relay with low and high set of over current and earth fault , MODBUS communication along with RS 485 Port . (iv) RMU and Vaccum Interruptor shall be as per OEM design. No additional plate/accessories to be add to acheive internal Arc of the cable of 21KA-1Sec, in the cable box chamber. RMU Should be manufactureed, inspected and invoiced from the OEM factory only: no licensee partner manufactured RMU is acceptable. (v) The SF6 gas filled 11 kV, 630 Amps, extensible type, Outdoor, SCADA compatible Motorized Ring Main Unit with Vacuum and Circuit Breaker to be supplied against this specification shall be suitable for satisfactory continuous operation under the following tropical conditions, design ambient temperature (Degree C) 40 as per IEC.

(C) The unit shall include the following with all necessary standard fitting as required at site: (i) Digital multifunction meter alongwith CT (40/1A, 2.5 VA, class -1.0 accuracy and bus PT (11KV , 50 VA, Class 1.0 accuracy) to be provided on RMU panel incoming and all as directed. (Make : Elmeasure / conzerv /Rishabh) (ii) Power bank suitable for RMU with Suitable Dry batteries battery Make: Exide, Amarone, Luminious (iii) Auxiliary relay for OTI, WTI, bucholz for out going transformer complete site requirment (iv) Load Break Switch 12kV 630Amps 21kA-3sec with copper bus Bar and earth switch fitted with fixed type voltage indicator device (03 Nos) as per IEC -2 Nos. (v) Vacuum Circuit Breaker 12kV 630Amps 21kA-3sec and fault making type Earthing Switch with micro-processor based selfpowered 3O/C + 1E/F relay fitted with fixed type voltage indicator device as per IEC 61958. Protection CTs suitable ratio 2.5VA burden (CT ratio shall be confirmed at time of drawing approval).-2 Nos. Note: Standard mano meter -01 for each tank, Operating handle - 01, cable clamping provision (standard)-01/for every cable entry suitable for 1RX3C cable upto 300Sqmm, Operation and maintenance manual - 01, RMU Foundation (Earth Work and PCC works) for placing RMU on plinth is deemed to be included in the cost quoted. Height of plinth should be as Per Drawing issued by Manufacturer.

Excavation in trenches in soft/loose soil n. exc. 1.5 m wide and n. exc. 1.5 m depth and getting out, including trimming the sides and forming bottom surface to required levels for fixing pole/stay assembly and laying/taking out cables complete all as specified and directed.

Returning, filling in, including spreading, levelling, watering and well ramming in layer not exceeding 25 cm thick in soft/loose soil complete all as specified and directed.

Removing of excavated material (soils) to a distance not exceeding 50m and dispositing where directed at a level not exceeding 1.50 m above the starting point complete all as specified and directed.

M&L Sand cushioning to UG cables (8cm deep before laying of cable and 15 cm deep over the cable) completed all as specified and directed. Note:- Punned thickness only will be considered for payment.

Supplying and laying un-reinforced precast concrete cable covers class HV, Type I, flat, size 300mm x 180mm x 40mm, ISI marked complete all as specified and directed.

Supply & fixing HT PCC cable route indicator of size 175mm x 150mm thick, 75 cm long and upper front side each indicator shall be embracing 4mm deep with words "HT CABLE" and two coats of synthetic enamel yellow and red paint along HT cable trench after every 100Mtr and corner & on avery turnning, road crossing etc including planting in ground with PCC (1:3:6) type C-1 complete all as specified and directed.

Supply and fixing cable jointing kit for HT 11KV grade cable for straight through joint suitable for XLPE armoured aluminium conductor cable of 120 to 185 Sqmm size, 3 core complete with jointing material (Heat shrink type) with accessories and testing after jointing complete all as specified and directed. Make:- Raychem/M-Seal/Cab-Seal

Supply and fixing cable jointing kit termination indoor type for HT 11KV grade cable for end termination joint suitable for XLPE armoured aluminium conductor cable of 120 to 185 Sqmm size, 3 core complete with jointing material (Heat shrink type) with accessories and testing after jointing complete all as specified and directed. Make:- Raychem/M-Seal/Cab-Seal

Supply, laying & testing cable XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty)with stranded aluminium conductor, 11000 volts grade, of size 3 core 120 sq mm.

Supply and errecting steel tubular pole swaged type 11.0 Meter long, type 410 SP-55, IS-2713 marked complete with M&L for mild steel base plate (fillet welded to poles), pole cap/final taper plug, bolts, nuts, washers etc. Painting of poles with one coat of red oxide primer and two coat of aluminium paint before fixing and one coat of aluminium paint after fixing on exposed surfaces and embedded portion shall be painted with two coat of black bituminous paint including the portion above coping shall be painted in alternative 05 Nos bands/straps of black & white colour starting with white colour (each band of 30cm wide) by two coat of synthetic enameled paint up to 1.5 m height complete all as specified and directed by Engr-in-Charge.

PCC (1:3:6) type C2 using 40mm graded stone aggregated as in foundation, filling and mass concrete using necessary form work complete all as directed by Engr-in-Charge.

PCC (1:2:4) type B1 using 20mm graded stone aggregate as in coping/plinth of pole, finish the exposed surface even and smooth without using extra cement including necessary form work etc complete all as directed by Engr-in-Charge.

S&F Disc type ,insulator porcelain, vitreous,brown white or green Two-in-series assembly, 145mm high & 225mm dia ball & socket type, with tension clamp,single disc assembly for conductor working pressure 11000 volts complete all as specified and directed.

Supply and fix HT 11 kv, 150 mm height and 150 mm dia pin type insulator, porcelain, vitreous, white/brown/green, for 11000 Volts grade inclding one galvanised mild steel spindle, two galvanised iron washers and gavanised iron nut complete all as specified and directed.

Suuply & Fixing 11000 Volts Danger notice plate of 1.6mm thick mild steel sheet vitreous enamelled white with letters figures and conventional skull and bones in signal red colour and fixed with MS clamps bolts and nuts of approved size for HT 25X20cm size including taking down.

Supply & fix cross arms, channels,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 synthetic enamel paint complete all as directed by Engr-in-Charge.

Supply & fixing or laying galvanised steel tubing light grade (ISI marked) of 100mm bore for protection of under ground cable on poles/ walls/under road crossing etc including suitable size iron clamps with nuts, bolts & washers for proper fixing of pipe complete all as specified and directed.

M & L for boring in any type of soil under road 1.5 Mtr below the top surface of road/Railway line by convential method complete for passing through 80mm to 100mm dia GI pipe and filling earth after laying of pipe including disposal of surplus soil complete all as specified and directed. NOTE :- Pipe will be measured and paid for separately . Any damage to existing cables of any type and road will made good by the tenderer without any extra payment.

M& L for earthling complete with galvanized steel earth plate, electrode 600 x 600x 6.3 mm thick , buried directly under ground (earth pit not less than 2.25 m below ground level ) with top edge of the plate not less than 1.5 below ground level connected to GI Iron strip 32 X 6 mm dia as earthing lead by means of nuts, bolts, check nuts & washers, of galvanized iron or steel all as Shown in electrical plate No 3 on Sl. Page 19-497 of MES schedule 2009 part I and connected to existing equipment/system, including all necessary excavation & earth work in hard/dense soil, common salt and charcoal dust mixed & packed 150 mm thick homogeneous layer all around the GI earth plate, GI protection pipe 40mm light grade upto 7.5 meter from electrode complete all as specified & shown on drawings with watering pipe medium grade 20mm dia ,GI sheet funnel with wire mesh ,RCC precast cover 1:2:4 type B1 duly reinforced with TMT bar 8mm dia at the rate of 150mm centre to centre both ways with suitable lifting handle ,pit/chamber in PCC 1:3:6 type C1 ,Angle iron 40x40x5mm frame for pit cover including testing on completion complete all as specified and directed.

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