Railway applications - Direct current signalling monostable relays - Part 2: Spring type relays
NORMA vydána dne 16.8.2019
Označení normy: IEC 62912-2-ed.1.0
Datum vydání normy: 16.8.2019
Počet stran: 24
Přibližná hmotnost: 72 g (0.16 liber)
Země: Mezinárodní technická norma
Kategorie: Technické normy IEC
IEC 62912-2:2019 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.