
Electrical relays Part 11: Interruptions to and alternating component (ripple) in d.c. auxiliary energizing quantity of measuring relays
出版:International Electrotechnical Committee

专家解读视频
SS IEC 255-11 Ed. 1 (1983) - Identical
UNE 21136-11:1983 - Identical
PN IEC 255-11:1994 - Identical
DIN IEC 60255-11 (2007-09) - Identical