SN EN 61557-9:1999現行
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：Swiss Standards
專家解讀視頻
TO BE USED IN CONJUNCTION WITH IEC 61557-1. Gives 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.
OVE/ONORM EN 61557-9:2000 - Identical
NBN EN 61557-9:2009 - Identical
SS EN 61557-9 Ed. 1 (2000) - Identical
UNE EN 61557-9:2001 - Identical
I.S. EN 61557-9:2000 - Identical
BS EN 61557-9:2009 - Identical
OVE/ONORM EN 61557-9:2015 - Identical
EN 61557-9:2015 - Identical
DIN EN 61557-9:2015 - Identical
DIN EN 61557-9 : 2015 COR 1 2017 - Identical
I.S. EN 61557-9:2015 - Identical
UNE EN 61557-9 : 2010 - Identical
NBN EN 61557-9 : 2015 COR 2016 - Identical
NFC 42 11998-9 : 1998 - Identical
BS EN 61557-9:2015 - Identical
SS EN 61557-9 Ed. 2 (2009) - Identical
NBN EN 61557-9:2015 - Identical
NF EN 61557-9:2015 - Identical
UNE EN 61557-9:2010 - Identical
IEC 61557-9 Ed. 1.0 - Identical
NBN EN 61557-9 Ed. 1 (2000) - Identical
NF EN 61557-9:2000 - Identical
NF EN 61557-9:2009 - Identical
OVE/ONORM EN 61557-9:2010 - Identical
BS EN 61557-9:2000 - Identical
DIN EN 61557-9 (2000-08) - Identical
