BS 764:1990

Specification for automatic change-over contactors for emergency lighting systems

BSI Group, 05/31/1990

Publisher: BS

File Format: PDF

$76.00$152.40

Description

Published:31/05/1990

Pages:12

File Size:1 file , 480 KB

Note:This product is unavailable in Ukraine, Russia, Belarus

Design and performance requirements for d.c. and single-phase a.c. double-pole change-over contactors for low-voltages up to 250 volts and a range of standard current ratings, which are used to provide the automatic transfer of current supplied to safety lights from the normal source to an alternative source when the normal source fails; reconnection is automatic when the normal supply conditions are restored.

Cross References:
BS 2752
BS 2757
BS 5750

More BS standard pdf

BS PD CEN/TR 15120:2022

Tanks for transport of dangerous goods. Guidance and recommendations for loading, transport and unloading

$175.00 $350.52

BS PD ISO/IEC/TR 22216:2022

Information security, cybersecurity and privacy protection. New concepts and changes in ISO/IEC 15408:2022 and ISO/IEC 18045:2022

$175.00 $350.52

BS PD CEN/TS 17830:2022

Paper and board. Guidance on the application of Term 2.2 "Prohibited materials" of EN 643:2014

$76.00 $152.40

BS PD IEC TS 62351-100-6:2022

Power systems management and associated information exchange. Data and communication security-Cybersecurity conformance testing for IEC 61850-8-1 and IEC 61850-9-2

$147.00 $294.64