
Electromechanical Telecom Elementary Relays Of Assessed Quality - Part 1: Generic Specification And Blank Detail Specification (Iec 61811-1:2015)
出版:Verband Deutscher Elektrotechniker

专家解读视频
2015 [01/10/2015]
EN 61811-1:2015 - Identical
IEC 61811-1 : 2.0 - Identical
DIN EN 61811-1 : 2015 - Corresponds
EN 61811-1 : 2015 - Identical