Tender For Annual Maintenance Services For Substation Equipment’S (Breakers/Transformers/Isolators And Lightning Arresters Etc.) In Nit Warangal -, Warangal-Telangana

Tender For Annual Maintenance Services For Substation Equipment’S (Breakers/Transformers/Isolators And Lightning Arresters Etc.) In Nit Warangal -1 IS: 374-1979 Ceiling fans and Regulators(3rd Revision) 2 IS: 694-1990 PVC insulated Electric Cable for working Voltage upto and including 1100 volts. 3 IS: 732-1989 Code of practice for electrical wiring and installation 4 IS: 1255-1983 Code of practice for installation and maintenance of power cables upto and including 33KV rating(Second Revision) 5 IS: 1258-1987 Bayonet lamp holders( 3rd revision) 6 IS: 1293-1988 3-pin plugs and sockets outlets rated voltage upto and including 250volts and rated current upto and including 160 Amps. 7 IS: 1554-1988 (Part-1) PVC insulated(Heavy Duty) electric cables for working voltages upto and including 1100 volts 8 IS: 1646-1982 Electrical Installation fire safety of buildings (general) code of practice 9 IS: 1651&1652-1991 Stationary cell and batteries, lead acid type 10 IS: 1885-1971 Glossary of items for electrical cables and conductors 11 IS: 1913-1978 General and safety requirements for fluorescent lamps luminaries Tubular 12 IS: 1180 & IS: 2026 Power Transformer(Oil type) 13 IS: 11171 : 1985 Power Transformer(Dry type) 14 IS: 2071-1974-76 Methods of high voltage testing 15 IS: 2309-1989 Protection of building and allied structures against lighting 16 IS: 2551-1982 Danger notice plate 17 IS: 3043-1987 Code of practice for earthing 18 IS: 3480-1966 Flexible Steel conduits for electrical wiring 19 IS: 3837-1976 Accessories for rigid steel conduit for electrical wiring 20 IS: 4146-1983 Application guide for voltage transformers 21 IS: 4615-1968 Switch socket outlets 22 IS: 5133-1969 (part-1) Boxes for the enclosure of electrical accessories. 23 IS: 5216-1982 (part-1) Guide for safety procedure and practices in electrical works. 24 IS: 5424-1969 Rubber mats for electrical purposes. 25 IS: 5578 & 11353-1985 Marking and arrangement of bus bars 26 IS: 7098-1985 (part-2) Cross linked Polyethylene insulated PVC sheathed cables. For working voltage from 3.3KV up to and including 33kv 27 IS: 8130-1984 Conductors for insulated electric cables and flexible cords 28 IS: 8623-1977 (Part-1) Factory built assemblies of switchgear and control gear for Voltages up to and including 1000V AC and 1200V DC 29 IS: 8623-1980 (Part-2) Bus Bar trunking System 30 IS: 8828-1996 Miniature Circuit Breakers 31 IS: 9537-1981 Rigid Steel Conduits for electrical wiring(Second Revision) 32 IS: 10810-1988 Methods of Test for Cables. 33 IS: 11171-1985 Specifications for dry type transformers. 34 IS:12640-1988 Earth leakage circuit Breakers 35 IS: 13947-1989 Moulded Case Circuit Breakers 36 IS: 13947-1993 Degree of protection provided by enclosures for LV switchgear and control gear 37 IS: 13947-1993 General requirement for switchgear and control gear for voltage not exceeding 1000volts. 38 IS14927-1(2001) Cable Trunking and Ducting Systems For Electrical Installations 39 IS-335-1972 Transformer oil -1 Carryout routine maintenance, servicing and testing of 630A HT VCBs by cleaning fixed contacts, moving contacts and arc chutes including servicing and putting the VCB in perfect working condition after setting all relay and ON,OFF mechanism etc 2 Carryout routine maintenance, servicing and testing of 630A to 1000A L.T ACB by cleaning fixed contacts, moving contacts and arc chutes including servicing and putting the ACB in perfect working condition after setting all relay and ON, OFF mechanism etc 3 Carryout routine maintenance of OIL type transformers in operation covering insulation resistance, oil break down strength. Reconditioning / replacement of silicazel, cleaning of transformer and topping upto oil level if required 4 Carryout routine maintenance of Dry type transformers in operation covering insulation resistance, cleaning of transformer etc. 5 Supply of Transformer oil (tested as per IS-335 - 1972) 6 Filtration of transformer oil as per IS specifications filters to die electric strength above 40 KV at site 7 Supply of transformer Breather set with silica gel 8 Supply of transformer Breather silica gel 9 Replacing old and unserviceable bushings, gaskets & metal parts for up to 500 kva distribution Transformers by new one HT bushings 10 Replacing old and unserviceable gaskets upto 500/1000 kva transformer capacity of following items a)Top cover plate 11 11kv 3p isolator with earth switch servising and contact resistance checking for all substation and 11kv transmission line in nitw 4 pole structure 2 pole structure. 12 Supply, transportation and erection of 11kv 5KA metal oxide lighting arresters suitable for 11kv supply with necessary materials on existing cross arms

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