HD 384.4.442:1997被替代
Electrical Installations Of Buildings - Part 4: Protection For Safety - Chapter 44: Protection Against Overvoltages - Section 442: Protection Of Low-voltage Installations Against Faults Between High-voltage Systems And Earth
出版：European Committee for Standards - Electrical
专家解读视频
Gives requirements for the safety of persons and equipment in the low-voltage installation in the event of a fault between the high-voltage system and earth in the transformer sub-station which supplies the low-voltage installation.
UNE 20460-4-442:1999 - Identical
I.S. HD 384.4.442:1998 - Identical
VDE 0100-442:1997 - Identical
DIN VDE 0100-442 (1997-11) - Identical
NEN HD 384-4-442:1997 - Identical
SN HD 384.4.442:1997 - Identical
DS HD 384-4-442:1997 - Identical
