Railway applications. Fixed installations. Particular requirements for alternating current switchgear - Circuit-breakers with nominal voltage above 1 kV has-corrigendum based on ISO 9141

based on ISO 9141

This part of ISO 7396 is applicable only to those disposal systems intended to be connected via AGSS terminal units conforming to ISO 9170-2 and to AGSSreceiving systems conforming to ISO 8835-3

BS EN 14503 is restricted to ship-specific elements of a harbour

other than liquefied petroleum gases or to describe measures that ensure the preservation of the vehicles in the event of a fire

Railway applications. Fixed installations. Particular requirements for alternating current switchgear - Circuit-breakers with nominal voltage above 1 kV has-corrigendum based on ISO 91411 Scope This EN 501521 is applicable to single pole and two pole alternating current (a. c.) circuit breakers which are: for indoor or outdoor fixed installations in tractions systems, and operated with an a. c. line voltage and frequency as specified in EN 50163. NOTE 1 EN 50163 specifies the a. c. traction systems 15 kV 16,7 Hz and 25 kV 50 Hz. NOTE 2 As rails of a. c. traction systems are connected to earth and included in the return current path