
Low-voltage switchgear and controlgear assemblies Distribution boards intended to be operated by ordinary persons (DBO) (IEC 61439-3, Ed. 1.0 (2012), MOD)
出版:Standards Australia

專家解讀視頻
Adopted IEC 61439-3, Ed. 1.0 (2012) to, in conjunction with Part 1 of the series, define specific requirements for distribution boards intended to be operated by ordinary persons (DBO).
IEC 61439-3 Ed. 1.0 - Modified