NR BR 932
Specification for Miniature Tractive Armature AC Immune DC Biased Neutral Line Relay, Plug-In Type for Railway Signalling Purposes
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Organization: | NR |
Publication Date: | 1 May 1977 |
Status: | active |
Page Count: | 30 |
scope:
This specification relates to design requirements for miniature tractive armature D.C. biased neutral line relays of the plug-in type for use in railway signalling circuits irrespective of the presence in the circuit of alternating current at industrial frequency.
Document History
NR BR 932
May 1, 1977
Specification for Miniature Tractive Armature AC Immune DC Biased Neutral Line Relay, Plug-In Type for Railway Signalling Purposes
This specification relates to design requirements for miniature tractive armature D.C. biased neutral line relays of the plug-in type for use in railway signalling circuits irrespective of the...