Tender For corrigendum : supply of transformers, fittings & accessories for power transformers, insulating oils for transformers and switchgear, bushing for alternating voltages above1000 volts, current transformers, three phase induction motors, gas operated relays, code of practice for selection installation & maintenance of transformers, degree of protection provided by enclosure for rotating electrical machinery, specification for low voltage switchgear& control gear part-i, colors for ready mix paints, code of practice for maintenance & supervision of mineral insulating oil in equipment, industrial cooling fans, guide for loading of oil immersed transformers, specification for dimensions of porcelain bushing, tap changers, high voltage test technique, insulation co-ordination, nema standard publication for power transformers, code of practice for selection, installation operation & maintenance of pumps for industrial applications, guide for sampling & analysis of free & dissolved gas & oil from oil filled electrical equipment, porcelain post insulators for systems with nominal voltage greater than 1000 volts, specification for electric power connectors, hollow insulators for use in electrical equipment, methods for testing uniformity of coating of zinc coated articles, dimensions for oip insulated condenser bushings
Tender For supply of inhibited mineral insulating oil shall conforming to is:335/2018,'and railways requirement as per rdso letter no. ti/ psi/ insoil/ policy/19/01-18 dated 26.07.2019 with additional requirements as under:- 1) lowest cold start energizing temperature - 0 degree c 2) presence of oxidation inhibitor (dbpc-2, 6 ditertiary butyl-para-cresol) content range - 0.25%-0.30%, 3) oxidation stability: (a) total acidity (neutralization value after oxidation (max) 0.2mg koh/gm (b) total sludge after oxidation (max) 0.05% by mass. packing:- pack (a} transformer oil shall be supplied in new non-returnable quality grade b, type-i mild steel drums of 210 litres nominal capacity conforming to is:1783 (part ii/88 with amdt no.1. the drums shall be got pre-inspected before filling.alternatively isi marked drums will be acceptable without pre-inspection.drg/specification:-spec. no is:335(2018) railways requirement as per rdso letter no. ti/psi/insoil/policy/19 dt-26.07.2019