Problem with no power on several plug sockets

[Roger Mills]

It's a socket into which you might insert a plug. It's pretty clear from his various posts that he's talking about the wall outlets.

[meow2222]

A plug socket is what a socket plug plugs into, naturally. And a wallplug is what a wall socket plugs into.

NT

[Bob Eager]

THIS is a plug socket:

(the top one)

[John Rumm]

I wonder if that is like USB where you need to flip it 180 degrees twice to get it to fit ;-)