Railway applications. Fixed installations. Particular requirements for a.c. switchgear. Measurement, control and protection devices for specific use in a.c. traction systems— 12 стр.
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Low-voltage switchgear and controlgear - Part 5-1: Control circuit devices and switching elements - Electromechanical control circuit devices (IEC 60947-5-1:2003 + A1:2009) (english version)
High-voltage switchgear and controlgear -- Part 1: Common specifications for alternating current switchgear and controlgear (IEC 62271-1:2017) (english version)