Railways applications. Direct current signalling relays Ingestion-build-78747 BS EN 61988-2-1:2012 includes some

BS EN 61988-2-1:2012 includes some technical changes with respect to EN 61988-2-1:2002 and EN 61988-2-2:2003

rovings and milled fibres

environmental damage limitation and details concerning the possible design of water basins

inspecting

Railways applications. Direct current signalling relays Ingestion-build-78747 BS EN 61988-2-1:2012 includes some1 Scope This European Standard gives requirements for direct current relays intended for safety related applications in railway signalling installations. This European Standard is applicable to monostable relays. However it can also be used as a guide for other relays such as with bistable relays.