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BSI BS 764:1954

Specification for automatic change-over contactors for emergency lighting systems
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BSI BS 764:1954

Specification for automatic change-over contactors for emergency lighting systems

PUBLISH DATE 1974
BSI BS 764:1954
WITHDRAWN, 5/31/1990
Contactors which automatically transfer circuits from the normal source of supply to an alternative source when the normal source fails; reconnection is automatic when normal conditions are restored. Performance and constructional details of double-pole contactors for low voltages; range of standard current ratings.
SDO BSI: British Standards Institution
Document Number 764
Publication Date June 12, 1974
Language en - English
Page Count
Revision Level
Supercedes
Committee PEL/17
Publish Date Document Id Type View
May 31, 1990 BS 764:1990 Revision
June 12, 1974 BS 764:1954 Revision
Dec. 13, 1937 BS 764:1937 Revision