DIN VDE 0664-50:2015
家用及类似用途的插座用带有或不带过电流保护的漏电保护器(IEC 62640-2011,修正);德文版本HD 62640-2015
Residual current devices with or without overcurrent protection for socket-outlets for household and similar uses (IEC 62640:2011, modified); German version HD 62640:2015