
Electrical relays Part 16: Impedance measuring relays
出版:International Electrotechnical Committee

专家解读视频
Specifies the general requirements for impedance measuring relays. Covers test methods and methods of presenting relay characteristics and performance.
SS IEC 255:1991 - Identical
UNE 21136-16:1996 - Identical
SS IEC 60255-16 Ed. 1 (1998) - Identical
PN IEC 255-16:1997 - Identical
VDE 0435-302:1988 - Similar