a "friend of mine" has changed a couple of power points in his house to newer, prettier ones and one of them had different coloured wires and he's not sure if he has put them in correctly.
there is a red wire, presumably active, a green/yellow wire and a bare wire. he has assumed that the bare wire is earth and connected it up to that, the red one to live and the green/yellow to neutral. He hasn't used it yet and isnt game to. is there a way to test if its done properly? :C