The guy has dropped a b*****k and made the NON-protected circuit a radial, feeding just the boiler, the fridge and the freezer. He's used 2.5mm cable and I know that as long as the MCB is 20A rated, that, in itself, is OK. The oven is now on the protected circuit and I know that that circuit - even given the extra loading of the oven - is, in itself, OK.
But it's not what I planned and it's not what I asked for.
To put it right would mean that he would need to use 4 junction boxes, which would be under the floorboards in the bathroom - the same floorboards that are going to be sheeted over with hardboard or thin ply before having vinyl cushionfloor lain on top - in other words, not easy to get to them if needed later on. OR, the other way to put it right would mean hacking chases in 3 of the kitchen walls - 2 of which have been newly plastered, the other newly tiled :o(
So, should the oven be RCD-protected (leave things as they are) or not (get him to put things right)??