IEC 61557-9 Ed. 1.0被替代
Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. - Equipment for testing, measuring or monitoring of protective measures Part 9: Equipment for insulation fault location in IT systems
出版：International Electrotechnical Committee
专家解读视频
Specifies 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 d.c. circuits having nominal voltages up to 1000 V a.c., as well as in unearthed IT d.c. systems with voltages up to 1500 V d.c., independent of the measuring principle. This part is to be used in conjunction with IEC 61557-1.
NEN EN IEC 61557-9:2000 - Identical
SS EN 61557-9 Ed. 1 (2000) - Identical
PN EN 61557-9:2004 - Identical
I.S. EN 61557-9:2000 - Identical
NF EN 61557-9:2000 - Identical
VDE 0413-9:2000 - Identical
OVE/ONORM EN 61557-9:2000 - Identical
DIN EN 61557-9 (2000-08) - Identical
BS EN 61557-9:2000 - Equivalent
SN EN 61557-9:1999 - Identical
CEI EN 61557-9 Ed. 1 (2000) - Identical
UNE EN 61557-9:2001 - Identical
