I had just rewired a socket that’s been gently overloaded for a few years and in the process of adding RCD protection caused this plug to trip it as soon as it was turned on.
The plug in question is also going to be replaced soon as it’s dangerous, but this is what I found.
Neutral and Earth are swapped… Plus it’s run in twin and earth cable; not suitable for putting into a plug.
Worse still… someone PAT tested and passed it.