
Live Working - Phase Comparators - Part 2: Resistive Type To Be Used For Voltages From 1 Kv To 36 Kv A.C.
出版:Belgian Standards

專(zhuān)家解讀視頻
2015 [01/02/2015]
Partially supersedes NBN EN 61481. (02/2015)
EN 61481-2:2014 - Identical
IEC 61481-2 : 1ED 2014 - Identical
EN 61481-2 : 2014 - Identical