Do boxes often have backless earth terminals like that? I don’t think I’ve seen it before. It wouldn’t be a problem if the earth wire were not sleeved.
Good point. In this case some of the connections to the box are in steel conduit. I believe that in this case relying on the screws is not allowed, right?
(More fundamentally, I think it’s clear that whoever installed it didn’t intend for it to be like that!)
My thought is it looks like that may have been correctly terminated at some point by the way the copper is bent
Alsothe way the insulation is damaged at the end but that could also have been done with pliers during the folding process;
Yes; this socket has quite a lot of "history", i.e. it has had two (!) spurs connected at different times, not by me! It has also received a mangling while removing it from the wall, followed by some unmangling for the photo.
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