IEC 255-0-20 : 1ED 74被替代
ELECTRICAL RELAYS - CONTACT PERFORMANCE OF ELECTRICAL RELAYS
出版：International Electrotechnical Committee
专家解读视频
Definitions. Preferred rated values. Preferred test conditions. Basic criteria of contact failure. Assessment and presentation of performance data.
NEN 10255-0-20 : 1975 - Identical
UNE 21136-0-20 : 1990 - Identical
NBN C 63 255-020 : 1977 - Identical
NEN 10255-0-20 : 1975 - Identical
NBN C 63 255-020 : 1977 - Identical
UNE 21136-0-20 : 1990 - Identical
