
Overhead Electrical Lines Exceeding Ac 1 Kv - Part 2-9: National Normative Aspects (Nna) For Great Britain And Northern Ireland (Based On En 50341-1:2012)
出版:British Standards Institution

专家解读视频
2017 [31/10/2017]2015 [31/07/2015]
Supersedes BS EN 50423-3 and BS EN 50341-3 which remains current. (08/2015)
EN 50341-2-9:2017 - Identical
EN 50341-2-9 : 2017 - Identical
EN 50341-2-9 : 2017 - Identical