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Tender For station telephone unit (master telephone) of electronic l.c. gate telephone system, with voice recorder & surge protection & line connection unit/circuit as per rdso spec no. rdso/spn/tc/51-2021 (rev.-1.0) with latest amendment/revision till the date of opening of tender. this includes supply. installation, testing & commissioning of system. make epsilon or similar. [ warranty period: 30 months after the date of delivery ]
Tender For gate telephone (slave telephone) of electronic l.c. gate telephone system, with voice recorder & surge protection & line connection unit/circuit as per rdso spec no. rdso/spn/tc/51-2021 (rev.-1.0) with latest amendment/ revision till the date of opening of tender. make epsilon or similar. this includes supply, installation, testing & commissioning of system [ warranty period: 30 months after the date of delivery ]
Tender For corrigendum : supply of 42 kv la disconnector assembly for 42 kv metal oxide gapless lightning arrestor as per rdso specification ti/spc/psi/mogtla/0101 (02-2015) or latest along with adaptor and earth plate. [ warranty period: 30 months after the date of delivery ]
Tender For supply of class "b" and "c" surge protection device (spd) type i & ii with visual indication and potential free contact to remote monitoring as per rdso spec no. rdso/spn/165/2012 version 3.0 or latest and iec standard 61643 for signals line 230vac application with handling lightning surges of 8/20 microseconds. one set consists of 3 nos. of spd (two nos. of b class (l-n,l-e) and one no.of c class (l-n) all enclosed in a box with kema or vde certified as per latest iec 61643-11-2011 standard class b & c surge protection device required with three modules. make- obo/phoenix/betterman/dehn or similar. [ warranty period: 30 months after the date of delivery ]
Tender For supply of gate telephone (slave telephone) unit with surge protection & line connection unit of electronic lc gate telephone system as per specification no. rdso/spn/tc-51/2021 rev.1.0 or latest. make gaec/bentron/epsilon [ warranty period: 30 months after the date of delivery ]
Tender For supply of 55no.s surge monitors with counter of range 0-5ma for 132kv,220kv,400kv lightning arrestors at eht sub-stations of siddipet circle/tgtransco.