Tender For supply, testing &commissioning (stc) of 40 nos., of variable voltage variablefrequencydrives (vvvfd) for air handling unit - blower motors of vab and svab ac plants, slp, sdsc shar
Tender For corrigendum : supply of class b&c surge protection device (spd) type i & ii with visual indication and potential free contract to remote monitoring as per rdso spec no. rdso/spn/165/2012 version 3.0 or latest andiec standard 61643 for signals line 230 v ac application with handling lightning surges of 10/350microseconds and switching surges of 8/20 microseconds. one set consists of 3 nos. of spd (two nos. of bclass (l-n, n-e) and one no of c class (l-n) all enclosed in a box with kema or vde certified as per latest iec61643-11-2011 standard class b&c surge protection device required with three modules only as per attached technical specification ( annexure 1). spd shall be of make obo, phonix or equivalent. [ warranty period: 30 months after the date of delivery ]
18 Nov, 2025
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