BS 561:1951

BS 561:1951


Full Specification Given Below:

Standard BS 561:1951
Title Identifier Specification for alternating-current line relays double-element 3-position (for railway signalling)
Status CU
Publication Date 15/06/51
Committee GEL/9
Approximate Price 52.00
Notes
ISBN 0 580 00667 0
Pages 16
International Equivalent
Descriptors Relays, Switchgear, Railway signals, Repeaters, Railway equipment, Railway fixed equipment, Dimensions, Seatings, Clearances, Electric contacts, Contact resistance, Pressure, Electric terminals, Marking, Electrical testing, Voltage, Alternating current, Signal devices, Electrical equipment, Railway applications
Cross references BS 442
Replaces
Replaces Notes
Replaced By
Replaced by Notes


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