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| 1 | SITC of 11kV 630 Amps 21KA for 3 Sec. SF6 insulated, outdoor duty (IP54), Extensible / Non extensible type Ring main unit (RMU) manually operated in combination of VCB modules and Load Break switch consisting of copper busbar in SF6 insulated stainless steel Outdoor enclosure of thickness of 2 mm and tank of stainless-steel Outdoor enclosure of thickness 3mm with manometer. The HV switchgear and control gear should be confirming to IEC62271-100, IEC-62271-200-2003 & IEC60694-1996. The RMU should be internal arc tested for 21KA for 1Second with IAСAFL classification for both Cable chamber and gas tank as per IEC 62271-200 and LBS to be rated for class E3 as per IEC 62271 -103. Vacuum Interrupter should be same as used during type test of RMU. Each feeder of RMU should have voltage presence indicator. and VCB feeder should consist of 1 no. microprocessor based Self powered numerical relay with over Current/ earth fault & short circuit protection with each VCB feeder, 3 Nos. Protection CT shall be of Burden 2.5VA, ratio 50/1A, Class of Accuracy class 5P10 for O/C and E/F protection for each VCB. Load break switch feeder shall have Fault Passage indicator, Right angle boots for all the feeder Modules, Remote trip, Emergency Stop, Cable cover interlocking, Transformer protection tapo card etc. All the type test certificates as per IEC and CEA from Third party NABL / CPRI / ERDA accredited lab to be submitted. (Cost of RCC Foundation / Steel Structure to be paid Extra) |
| 2 | Extensible 3-way RMU with 1 no. VCB & 2No. Load Break Switch |
| 3 | Providing & Laying XLPE insulated three core Armoured Aluminium cable for working voltage 11 K.V.(E) confirming IS :7098 P- 2 with H4- Grade electrolytic aluminium conductor confirming to IS: 8130 class-2 of purity >99.6 %, Insulation Screening: Extruded Semiconducting Compound followed by helically wrapped Copper Tape, round / flat strip armouring of cables, Inner / outer sheath PVC type ST-2 confirming to IS:5831 in existing RCC Pipe / Hume pipe / Stoneware Pipe/ PVC pipe/ open duct/cable trench / Cable tray (with cable tie) including testing etc. as required of following size. |
| 4 | 3 core 185.0 Sq.mm |
| 5 | Providing & making heat shrinkable type indoor/outdoor/straight through terminations/ joint kit suitable for 11 KV / 33 KV (Earthed) cable with required components, preparation of cable ends. Type test report should be as per IS13573:2011 including testing etc. as required of following sizes. |
| 6 | 11 KV End Termination Kit Indoor typе 3 core 120/150/185 Sq.mm |
| 7 | SITC of Copper Bonded rod Earthing with high tensile strength (more than 600 N / sq.mm low carbon steel rod molecularly bonded with Copper thickness (250 microns) and confirming to UL 467 of following size and length and as per point mentioned (a), (b), [c), (d), (e) below :- (a) Bore a hole of dia. 100 mm of required length, Place the rod in the centre of Hole (b) Earth enhancing compound to ensure the moisture content and electrical conductivity, 25 kg for 3000 mm. The compound shall be tested form NABL accredited lab for low resistivity (less than 0.12 Ohm - meter) & high conductivity in nature with carbon as a major content in accordance with IEС 62561-7 (c) Connect the rod with copper Strip/Conductor/Wire with suitable clamp made from tinned copper and SS 304 Bolt |
| 8 | 25 mm thick and 3 Mtr. Long |
| 9 | Providing & Laying XLPE insulated & P.V.C. sheathed Armoured Aluminium cable confirming to IS: 7098 P -I of 1.1 KV with H4- Grade electrolytic aluminium conductor confirming to IS 8130 of purity >99.6 %, round / flat strip armouring of cables, Inner / outer sheath confirming to IS:5831 in existing RCC / Hume / Stoneware / PVC pipe/ open duct/cable trench / Cable tray(with cable tie) including testing etc. as required of following size. |
| 10 | 300.0 Sq. mm 3.5 core |
| 11 | SITC of IP-42 and general construction confirming to IS:8623: 1993, wall/ free standing floor mounted dust and vermin proof compartmentalised cubical panel as specifications and Other parameters required as per point (a) ,(b), (c),(d), (e), (f), (g), (h) as below:- Thickness of CRCA sheet shall not be less than 1.6 mm up to 450 mm length/ width of any compartment and be 2.0 mm above 450 mm, load bearing structure shall be 2.0 mm thick sheet supported by base M.S. channel if required, cable alley compartments having concealed hinged type doors with key type lock with / without detachable extension type structure. Removable 3 mm. thick sheet steel gland plates with appropriate size of knockouts for cables shall be provided Complete panel shall undergo a process of degreasing, Water rinsing, Activation, derusting, pickling in acid bath, phosphatising & shall be subjected to nine tank process and then Powder coated with approved shade of minimum 70 microns on both side (Inner & Outer side) of panel. The panel having PE foam/ Neoprene rubber gasket of not less than 3mm thickness,required hardware , concealed hinged door with key type locking arrangement for equipment/switchgear earthed with 2.5 sq.mm braided copper wire.Tests: The insulation resistance (with 1000 V Megger) and High voltage Power frequency test (by applying a voltage of 2.5KV for one minute) shall be measured between phases, between phase andneutral and between phase and earth. both before and after high voltage power frequency test. The insulation resistance shall not be less than three mega ohm. CT Secondary current injection testshall also be carried out. Only outer surface area on all sides shall bemeasured & panel to be fabricated only from CPRI approved fabricator only (CPRI type Test certificates for Temp. rise test, Short circuit test for 50 kA and IP test is to be submitted) |
| 12 | Supplying and fixing of Aluminium (IEC 60105 ISO 209-1,2)/ Copper (IEC 60028) bus bar by means of SMC/ DMC type insulator, with short circuit withstand capacity of 31 MVA for 1 Sec., high tensile nuts and bolts spring washers in existing panel including bending, cutting in required shape and size and colour coding with heat shrinkable PVC sleeves. |
| 13 | Electrolytic grade Aluminium bus bar 6010 grade |
| 14 | Supplying and making one end termination with Nickel plated heavy duty brass single compression gland (as per IS 12943-1990)) SIBG type consisting of Check Nut, Gland Body, Metal Washer(3 Nos.), Outer Seal Rubber Ring, Compression Nut, heavy duty aluminium lugs (as per IS 8309 -1993) duly crimped with crimping tool, PVC tape as per IS 8337-1976 of following size of PVC insulated & PVC sheathed/ XLPЕ aluminium conductor cable of 1100 volt grade as required. |
| 15 | 3.5 x 300.0 sq.mm |
| 16 | Supplying and making end termination with heavy aluminium lugs (Pin / ring type) confirming to IS 8309 -1993 duly crimped with crimping tool, PVC tape etc. of following size. |
| 17 | 300.0 Sq.mm |
| 18 | Providing & Fixing of IS: 1248(part-1) 2003 confirming Moving Iron panel meter, 90 degree Analog type (up to 500) V range Volt meter / Direct- Ammeter / CT operated ammeter of class 1.0 accuracy of size 96mm x 96 mm including making connection by PVC insulated copper conductor with PVC sleeves / channel etc. as required. |
| 19 | Voltmeter (0 to 500V) |
| 20 | Ammeter (Direct Reading/ CT Operated) |
| 21 | Supply & Laying following size earth strip in horizontal or vertical run in surface by means of Earth strip DMC Insulator including riveting/ soldering/ welding, Jointing shall be done by overlapping double the width of strip and with 2 set of Brass (for Cu strip) / GI (for GI Strip) nut bolt & spring washer spaced at 50cm making |
| 22 | 50mm x 6mm G.I. ( Hot Dipped ) Strip Please Enable Macros to View BoQ information |
