But, as I said earlier, AFDD's don't work on ring circuits, so to gain any benefit it means wiring things on radials, is that the way they want to push things because if it is then it's a backward step in my opinion, what's next, sticking a fuse in the neutral, or are we going to start having different size plugs so that equipment needing protection can only be plugged into protected sockets, in which case it's going to be like the old days, where you had 2A plugs for lighting, 5A plugs for tv's and hoovers, and 15A plugs for washers and such like.
I've said it before and I'll continue to say it, this is an ill-conceived idea that has been brought in with very little thought, save that of making money for the manufacturers of these devices and once again shows a complete lack of knowledge on behalf of those who 'lead' our industry.
This complete lack of knowledge was shown again recently in an article in PE magazine, There was an article on a leading manufacturer and it said that when it became a requirement that only metal consumer units were allowed to be fitted in domestic properties, this company was at the forefront of manufacture.
Since when has it been not permitted to use anything but a metalclad CU in a domestic environment? Because the way I understand it, if the CU is in a non-combustible enclosure then it has no need to be metal, and that is the end of that. I do wish people would fully understand things before making sweeping statements, it's no wonder the industry is in the mess it's in.
opcorn 
