BS EN 61557-9:2009被替代
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. Equipment for insulation fault location in IT systems
出版：British Standards Institution
专家解读视频
To be read in conjunction with BS EN 61557-1
© British Standards Institution 2013
DIN EN 61557-9 (2009-11) - Identical
NBN EN 61557-9:2009 - Identical
UNE EN 61557-9:2010 - Identical
SS EN 61557-9 Ed. 2 (2009) - Identical
SN EN 61557-9:1999 - Identical
NF EN 61557-9:2009 - Identical
I.S. EN 61557-9:2009 - Identical
IEC 61557-9 Ed. 2.0 - Identical
