
Low-Voltage Electrical Installations - Part 4-442: Protection For Safety - Protection Of Low-Voltage Installations Against Temporary Overvoltages Due To Earth Faults In The High-Voltage System And Due To Faults In The Low Voltage System (Iec 60364-4-44:2007 (Clause 442)
出版:Verband Deutscher Elektrotechniker

专家解读视频
2013 [01/06/2013]1997 [01/11/1997]DRAFT 1988 [01/05/1988]
Partially supersedes DIN VDE 0100-736 and DIN 57100-736. (01/2003)
HD 60364-4-442 : 2012 - Identical
IEC 60364-4-44 : 2.1 - Identical
VDE 0100-442 : 2013 - Identical
VDE 0100-442 : 2013 - Identical
IEC 60364-4-44 : 2.2 - Identical
HD 384.4.442 : 200S1 - Identical
VDE 0100-442:2013 - Identical
HD 60364-4-442:2012 - Identical