
Railway Applications - Fixed Installations - Electric Traction - Specific Requirements For Composite Insulators Used For Overhead Contact Line Systems (Iec 62621:2011)
出版:Verband Deutscher Elektrotechniker

专家解读视频
2017 [01/01/2017]DRAFT 2015 [01/12/2015]
Supersedes DIN EN 50151. (01/2017) DRAFT AMD 1 issued in April 2017. (04/2017)
IEC 62621 : 1.0 - Identical
VDE 0115-621 : 2017 - Corresponds
EN 62621 : 2016 AMD 1 2016 - Identical
VDE 0115-621 : 2017 - Corresponds
EN 62621:2016 - Identical