Well, I suppose on one level that makes sense but we are not really supposed to wire 13amp plugs these days, that is why all new appliances now come with a moulded plug attached. I know we all do have to do it from time to time and hopefully the majority of us do it competently but I would put money on it that there will be some horror stories out there caused, for instance, by poor colour vision. An appliance will still work with the earth and neutral reversed because the neutral is earthed at the sub-station but any imbalance in the distribution could produce potentially fatal currents that could not be dissipated.
The domestic wiring regulations preclude any unqualified person, as I understand it, from doing much electrical work within our own properties, save perhaps taking a spur off a ring main or wiring a lamp. There two ways of looking at this. I am not a 'qualified' electrician, whatever that is supposed to mean but I have worked on and around electrical installations for most of my life, from 50V DC very high current equipment through to 415V AC three-phase distributions and consider myself more than well 'qualified' to undertake most installation tasks to the highest standard, although I could not 'certify' the work as being 'safe'. However, what may still be termed Part P regulations prevent me from doing much in my domestic environment unless I had the work independently tested and certificated.
I have to say that I probably agree with all the restrictions because, although I consider my workshop to be cabled and wired to a very high standard with an auxiliary consumer unit for double protection and all conductors contained in trunking and conduit etc. (all done prior to Part P so perfectly legitimate) I have visited some workshops that appear to be no more than electrical accidents waiting to happen. And this by men who I have considered way above me skill-wise. Bits of cable either twisted together and wrapped in insulation tape or strip connectors hanging over machines etc. or trailing extension sockets all over the place. Just for the sake of a few pounds being spent on doing the job properly and safely.
I know this could be a controversial subject for those who consider their workshop environment sacrosanct.
Edited By Chris Crew on 30/03/2021 20:11:43