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BR933A Sep 1971

Specification for Miniature Tractive Armature AC Immune DC Slow Pick-up Neutral Line Relay Plug-In Type for Railway Signalling Purposes

Synopsis

This specification relates to the design requirements of miniature tractive armature D.C. slow pick-up neutral line relays for use in railway signalling circuits, irrespective of the presence in the circuit of alternating current at industrial frequency.
Read full standard
Registered
Withdrawn
Other
Issued:
01/09/1971
Published:
01/09/1971
In Force:
01/09/1971
Withdrawn:
31/12/1999

Details

Under Consultation Closed
Vehicle Assessment No
Lead Committee Control Command and Signalling - CCS
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