BSI - BS 519
Specification for Tractive Armature Direct Current Neutral-Polar Line Relays for Railway Signalling
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Organization: | BSI |
Publication Date: | 14 July 1950 |
Status: | inactive |
Page Count: | 14 |
ICS Code (Materials and components for railway engineering): | 45.040 |
ICS Code (Relays): | 29.120.70 |
scope:
Relays having up to four neutral contact-arms and up to four polar contact-arms. Construction (overall dimensions, electrical tests, performance characteristics); arrangement, marking of terminals.
Document History
BS 519
July 14, 1950
Specification for Tractive Armature Direct Current Neutral-Polar Line Relays for Railway Signalling
Relays having up to four neutral contact-arms and up to four polar contact-arms. Construction (overall dimensions, electrical tests, performance characteristics); arrangement, marking of terminals.