Railway applications. Fixed installations. D.C. switchgear - General
Railway applications. Fixed installations. D.C. switchgear - General
1 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 3 Indoor d.c. disconnectors , switch-disconnectors and earthing switches,
Part 4 Outdoor d.c. disconnectors , switch-disconnectors and earthing switches,
Part 5 Surge arresters and low voltage limiters for specific use in d.c. systems,
Part 6 ...
Упомянутые в описании и другие стандарты BS