IEC - 62912-2
Railway applications – Direct current signalling monostable relays – Part 2: Spring type relays
|Publication Date:||1 August 2019|
|ICS Code (Railway rolling stock in general):||45.060.01|
This document gives requirements for direct current relays intended for safety-related applications in railway signalling installations.
This document is applicable to non-proved signalling monostable relays of the spring type, whose return force is generated by elasticity of spring.
The return force can be provided either from a separate spring and/or from the contact springs themselves.
NOTE "Non-proved" means the feature of relays fulfilling all the safety conditions without the aid of other relays or without control of operations in the circuit.