IEC 61557-8 : 3.0现行
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 8: INSULATION MONITORING DEVICES FOR IT SYSTEMS
出版：International Electrotechnical Committee
专家解读视频
Describes the requirements for insulation monitoring devices (IMD) which permanently monitor the insulation resistance R[F] to earth of unearthed a.c. IT systems, of a.c. IT systems with galvanically connected d.c. circuits having nominal voltages up to 1000 V a.c., as well as of unearthed d.c. IT systems with voltages up to 1500 V d.c. independent from the method of measuring.
DS EN 61557-8 : 2015 COR 2016 - Identical
NF EN 61557-8 : 2015 - Identical
VDE 0413-8 : 2015 COR 1 2016 - Identical
SN EN 61557-8 : 2007 - Identical
NEN EN IEC 61557-8 : 2015 - Identical
DIN EN 61557-8 : 2015 COR 1 2016 - Identical
PN EN 61557-8 : 2015 AC 2016 - Identical
NBN EN 61557-8 : 2015 COR 2016 - Identical
