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

专家解读视频
2011 AMD 2 2016 [01/02/2016]2011 AMD 1 2011 [01/09/2011]2011 [01/04/2011]1999 [01/03/1999]
I.S. EN 50122-1:2011 - Identical
EN 50122-1:2011 - Identical
NEN EN 50122-1:2011 - Identical
SN EN 50122-1:2011 - Identical
NF EN 50122-1:2011 - Identical
UNE EN 50122-1:2011 - Identical
SS EN 50122-1:2011 - Identical
BS EN 50122-1:2011+A2:2016 - Identical
BS EN 50122-1:2011+A4:2017 - Identical
BS EN 50122-1:2011+A3:2016 - Identical
DIN EN 50122-1:2017 - Identical