
International Electrotechnical Vocabulary Part 444: Elementary relays
出版:International Electrotechnical Committee

专家解读视频
It has the status of a horizontal standard in accordance with IEC Guide 108<
NEN IEC 60050-444:2002 - Identical
NFC 01 444:2002 - Identical
NBR IEC 60050-444:2005 - Identical
UNE 21302-444:2003 - Identical
IEV KAPITEL 444 - Identical