Projekt
Maintenance of IEC 61811-50, IEC 61811-51, IEC 61811-52, IEC 61811-53, IEC 61811-54, IEC 61811-55: Electromechanical all-or-nothing relays - Specifications for electromechanical all-or-nothing telecom relays of assessed quality
Beginn
2009-02-20
Geplante Dokumentnummer
IEC 94/286/DC
