SS EN 61557-9 Ed. 2 (2009)现行
Electrical Safety In Low-Voltage Distribution Systems Up To 1 Kv A.C. And 1,5 Kv D.C. - Equipment For Testing, Measuring Or Monitoring Of Protective Measures - Part 9: Equipment For Insulation Fault Location In It Systems
出版：Standardiserings-Kommissionen I Sverige
专家解读视频
Provides the requirements for insulation fault location systems which localize insulation faults in any part of the system in unearthed IT a.c. systems and unearthed IT a.c. systems with galvanically connected d.c. circuits having nominal voltages up to 1000 V a.c., as well as unearthed IT d.c. systems with voltages up to 1 500 V d.c., independent of the measuring principle.
1ED 2000 is still active. (04/2010)
UNE EN 61557-9:2010 - Identical
DIN EN 61557-9 (2009-11) - Identical
NBN EN 61557-9:2009 - Identical
SN EN 61557-9:1999 - Identical
BS EN 61557-9:2009 - Identical
I.S. EN 61557-9:2009 - Identical
NF EN 61557-9:2009 - Identical
EN 61557-9:2015 - Identical
NF EN 61557-9:2015 - Identical
NBN EN 61557-9:2015 - Identical
BS EN 61557-9:2015 - Identical
DIN EN 61557-9:2015 - Identical
