DIN EN 50123-4:2003被替代
Railway Applications - Fixed Installations - D.C. Switchgear - Part 4: Outdoor D.C. Switch-Disconnectors, Switch-Disconnectors And Earthing Switches
出版：Verband Deutscher Elektrotechniker
专家解读视频
2003 AMD 1 2014 [01/02/2014]2003 [01/09/2003]1999 [01/09/1999]DRAFT 1996 [01/07/1996]
UNE EN 50123-4:2004 - Identical
I.S. EN 50123-4:2003 - Identical
NF EN 50123-4:2004 - Identical
NEN EN 50123-4:2003 - Identical
BS EN 50123-4:2003+A1:2013 - Identical
NBN EN 50123-4:2003 - Identical
SN EN 50123-4:2003 - Identical
