I have posted a piece here which is also on the TT topic, but is more general and I think a new thread would be better. Your voice is heard. See below.
The point is Andy that inspection is to the current regulations, and would also have to be the current MI, but of course this is allowing retrospective change to existing installation standards by manufacturers. Really standards should drive manufacturers, not the other way round. Clearly the best change would be to only sell 100A RCDs (Interesting thought, would they have to 130A ones to allow for the fusing factor?), probably a trivial cost increase over 40, 63 and 80A ones. In this case all existing domestic installations would be considered satisfactory, and new ones protected to the new rules. This is the proper way to handle something like this, and I am amazed at JPEL/64 allowing this mess to happen. It could be that manufacturers are having too much say somewhere, it would be interesting to find out.
The point is Andy that inspection is to the current regulations, and would also have to be the current MI, but of course this is allowing retrospective change to existing installation standards by manufacturers. Really standards should drive manufacturers, not the other way round. Clearly the best change would be to only sell 100A RCDs (Interesting thought, would they have to 130A ones to allow for the fusing factor?), probably a trivial cost increase over 40, 63 and 80A ones. In this case all existing domestic installations would be considered satisfactory, and new ones protected to the new rules. This is the proper way to handle something like this, and I am amazed at JPEL/64 allowing this mess to happen. It could be that manufacturers are having too much say somewhere, it would be interesting to find out.