IEC 61557-7 : 2.0已作废
ELECTRICAL SAFETY IN LOW VOLTAGE DISTRIBUTION SYSTEMS UP TO 1000 V A.C. AND 1500 V D.C. - EQUIPMENT FOR TESTING, MEASURING OR MONITORING OF PROTECTIVE MEASURES - PART 7: PHASE SEQUENCE
出版：International Electrotechnical Committee
专家解读视频
Describes requirements for measuring equipment applied to testing the phase sequence in three-phase distribution systems.
SN EN 61557-7 : 1997 - Identical
NEN EN IEC 61557-7 : 2007 - Identical
UNE EN 61557-7 : 2007 - Identical
NF EN 61557-7 : 2007 - Identical
BS EN 61557-7 : 2007 - Identical
PN EN 61557-7 : 2007 - Identical
VDE 0413-7 : 2008 - Identical
I.S. EN 61557-7:2007 - Identical
DS EN 61557-7 : 2007 - Identical
GOST IEC 61557-7 : 2013 - Identical
CEI EN 61557-7 : 2008 - Identical
