
Electrical installations of buildings Part 4: Protection for safety - Chapter 44: Protection against overvoltages - Section 443: Protection against overvoltages of atmospheric origin or due to switching
出版:International Electrotechnical Committee

专家解读视频
Identifies and describes the locations in electrical installations where transient overvoltages may appear; describes the means by which such overvoltages may be limited to values not exceeding the withstand impulse voltages of the equipment supplied.
CEI 64-8/4 Ed. 6 (2007) - Identical
SN HD 384.4.443:2000 - Identical
JIS C 0364-4-443:1999 - Identical
VDE 0100-443:2007 - Identical
GB 16895.12-2001 - Identical
NBN EN 2378:1995 - Identical
NEN HD 384-4-443:2001 - Identical
UNE 20460-4-443:2007 - Identical
HD 384.4.443:2000 - Identical
PN IEC 60364-4-443:1999 - Identical