Railway applications. Fixed installations. D.C. switchgear - General Ingestion-build-201039 BS EN 1057 applies to

BS EN 1057 applies to tubes having an outside diameter from 6 mm up to and including 267 mm for:

Switches covered by this document:

BS EN 12560-4

and the self-weight of its component parts

BS 6297 has been amended and replaces BS 6297:1983 which is now withdrawn

Railway applications. Fixed installations. D.C. switchgear - General Ingestion-build-201039 BS EN 1057 applies to1 Scope The EN 50123 series specifies requirements for d. c. switchgear and controlgear and is intended to be used in fixed electrical installations with nominal voltage not exceeding 3 000 V d. c., which supply electrical power to vehicles for public guided transport, i. e. railway vehicles, tramway vehicles, underground vehicles and trolley buses. Part 1 specifies general requirements. The other parts are covering Part 2 D. C. circuit breakers, Part