Railway applications. Fixed installations. D.C. switchgear - General Ingestion-build-201039 For other applications and/or requirements

For other applications and/or requirements the standard can be used if required by the specification

requirements or other provisions of EU

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

BS EN 12560-4

BS 3733 provides users guidance on pulleys for V-belts

Railway applications. Fixed installations. D.C. switchgear - General Ingestion-build-201039 For other applications and/or requirements1 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