How do markc123,
You started by saying “I have summed up whats bad about part p - plasterers fixing sockets and the like.” but this is whats good about part p. If a plasterer chooses to do some electrical installation work (domestic property only) he has chosen to break the law. This works in our favor does it not? Laws are in place and it will to some degree stop people from breaking them, granted, not always. Out of interest, if a plasterer was to buy a steel back box where still sells them with two adjustable lugs? I haven’t seen these type in my wholesalers for a long time but you describe the non earthing of back boxes as “unbelievable”. I believe that it is desirable but it often is not a necessity. Assuming that we have a modern metallic back box with 1 fixed lug and 1 adjustable lug then care must be taken because some socket-outlets have only one earthing strap and eyelet (mine have two). If this is the case you must be sure that the earthing eyelet is located at the fixed lug position, otherwise an earthing tail must be used. if you are still earthing back boxes then good on ya! but it is not a requirement! and IMHO it is not “unbelievable” not to.
I did NOT say that i signed off a Romanian tilers re-wires, he was asking me to sign it off, I said I would cost for re-wiring it, he explains he’s done it, I explain that ill re-wire it again and then he can have a certificate (i thought this was a good way to teach him not to touch electrics!!!!)
The other point you make about a gas man who has part p registered on the side of his van... correct me if i’m wrong, but part P is for compliance within a domestic property and assuming your caravan was in a caravan park why would you expect him to know anything about the height of a socket? this falls outside the scope of his work does it not? sounds like he was interested to learn and it is applaudable that he carries regulations around in his van.
Dan