IEC 60050-321 Ed. 1.0现行
International Electrotechnical Vocabulary. Chapter 321: Instrument transformers
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<
BIS IS 1885-28:1993 (R2004) - Equivalent
UNE 21302-321:1990 - Identical
AS 1852.321-1988 - Identical
NFC 01 321:1987 - Identical
BS 4727-2:GRP16:1991 - Equivalent
NEN 10050-321:1987 - Identical
IEV KAPITEL 321 - Identical
