SN EN 61557-5:1997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 5: Resistance To Earth
出版：Swiss Standards
专家解读视频
Defines requirements for equipment for measurement of the earth resistance by means of an a.c. voltage.
DIN EN 61557-5 (2007-12) - Identical
BS EN 61557-5:2007 - Identical
UNE EN 61557-5:2007 - Identical
SS EN 61557-5 Ed. 2 (2007) - Identical
I.S. EN 61557-5:2007 - Identical
NF EN 61557-5:2007 - Identical
NBN EN 61557-5:2007 - Identical
IEC 61557-5 Ed. 2.0 - Identical
DIN EN 61557-5:2007 - Identical
NBN EN 61557-5 : 2007 - Identical
I.S. EN 61557-5:2007 - Identical
NF EN 61557-5 : 2007 - Identical
DIN EN 61557-5 : 2007 - Identical
IEC 61557-5 : 2.0 - Identical
UNE EN 61557-5 : 2007 - Identical
BS EN 61557-5 : 2007 - Identical
EN 61557-5 : 2007 - Identical
UNE EN 61557-5 : 2007 - Identical
NBN EN 61557-5 : 2007 - Identical
NF EN 61557-5 : 2007 - Identical
BS EN 61557-5 : 2007 - Identical
I.S. EN 61557-5:2007 - Identical
DIN EN 61557-5 : 2007 - Identical
