
Railway Applications - Fixed Installations - Electrical Safety, Earthing And The Return Circuit - Part 1: Protective Provisions Against Electric Shock
出版:Verband Deutscher Elektrotechniker

专家解读视频
2017 [01/10/2017]2016 [01/10/2016]2011 COR 1 2014 [01/09/2014]2011 [01/09/2011]1997 COR 1 2007 [01/11/2007]1997 [01/12/1997]1982 [01/06/1982]
EN 50122-1:2011 - Identical
EN 50122-1 : 2011 AMD 4 2017 - Identical
DIN EN 50122-1 : 2017 - Corresponds
DIN EN 50122-1 : 2017 - Corresponds