Railway applications. Fixed installations. Particular requirements for alternating current switchgear - Circuit-breakers with nominal voltage above 1 kV has-corrigendum from large run commercial facilities

from large run commercial facilities to one-off home kits

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

IEC 61000-1-1:1992

based on ISO 9141

Railway applications. Fixed installations. Particular requirements for alternating current switchgear - Circuit-breakers with nominal voltage above 1 kV has-corrigendum from large run commercial facilities1 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