NR BR 962
Specification for Miniature Relay Unit, Plug-In Type, for Railway Signalling Purposes Incorporating a D.C. Neutral Thermal Time Element Relay & an Independent Tractive Armature D.C. Neutral Line Relay
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| Organization: | NR |
| Publication Date: | 1 September 1981 |
| Status: | active |
| Page Count: | 34 |
scope:
This specification relates to design requirements for the thermal unit. The time delay is obtained by the consecutive heating and cooling of a thermal element.
The following clauses define additions end amendments to B.R. Specification 960.
Document History
NR BR 962
September 1, 1981
Specification for Miniature Relay Unit, Plug-In Type, for Railway Signalling Purposes Incorporating a D.C. Neutral Thermal Time Element Relay & an Independent Tractive Armature D.C. Neutral Line Relay
This specification relates to design requirements for the thermal unit. The time delay is obtained by the consecutive heating and cooling of a thermal element.
The following clauses define additions...
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