
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:National Standards Authority of Ireland

专家解读视频
Defines requirements for insulation monitoring devices (IMD) which permanently monitor the insulation resistance to earth of unearthed IT a.c. systems.
EN 61557-8:2015 - Identical
BS EN 61557-8:2015 - Identical
SN EN 61557-8:1997 - Identical
BS EN 61557-8:2007 - Identical
DIN EN 61557-8 (2007-12) - Identical
IEC 61557-8 Ed. 2.0 - Identical
NF EN 61557-8:2007 - Identical
SS EN 61557-8 Ed. 1 (1998) - Identical
UNE EN 61557-8:1998 - Identical
SS EN 61557-8 Ed. 2 (2007) - Identical
NBN EN 61557-8:2008 - Identical
UNE EN 61557-8:2008 - Identical
NBN EN 61557-8:1998 - Identical