IEC 60255-12 : 1.0现行
ELECTRICAL RELAYS - DIRECTIONAL RELAYS AND POWER RELAYS WITH TWO INPUT ENERGIZING QUANTITIES
出版：International Electrotechnical Committee
专家解读视频
Specifies performance requirements for the subfamily as shown in the title. This publication forms part of a series dealing with measuring relays with more than one input energizing quantity and for which Publication 255-6 gives the general requirements.
PN IEC 255-12 : 1994 - Identical
BIS IS/IEC 60255-12 : 1980 - Identical
GOST IEC 60255-12 : 2014 - Identical
UNE 21136-12 : 1990 - Identical
BIS IS/IEC 60255-12 : 1980 - Identical
VDE 0435-302 : 1988 - Similar to
UNE 21136-12 : 1990 - Identical
PN IEC 255-12 : 1994 - Identical
BS 142-4.2(1984) : 1984 - Similar to
GOST IEC 60255-12 : 2014 - Identical
