Sistem de tensiuni trifazate de 400V, la frecvenţa de 50Hz
<a href="https://en.wikipedia.org/wiki/ro:User:AMDATi" class="extiw" title="w:ro:User:AMDATi">AMDATi</a> at <a href="https://en.wikipedia.org/wiki/ro:" class="extiw" title="w:ro:">Romanian Wikipedia</a>
7 August 2008 (original upload date)
Transferred from <span class="plainlinks"><a class="external text" href="https://ro.wikipedia.org">ro.wikipedia</a></span> to Commons.