IEC 60255-149 : 1ED 2013现行
MEASURING RELAYS AND PROTECTION EQUIPMENT - PART 149: FUNCTIONAL REQUIREMENTS FOR THERMAL ELECTRICAL RELAYS
出版：International Electrotechnical Committee
专家解读视频
Defines minimum requirements for thermal protection relays and also contains specification of the protection function, measurement characteristics and test methodologies.
NEN EN IEC 60255-149 : 2013 - Identical
BS EN 60255-149 : 2013 - Identical
PN EN 60255-149 : 2014 - Identical
VDE 0435-3149 : 2014 - Identical
SAC GB/T 14598.149 : 2016 - Identical
UNE EN 60255-149 : 2013 - Identical
DS EN 60255-149 : 2013 - Identical
CEI EN 60255-149 : 2014 - Identical
