A previous occupier has cut into the ring main under the floorboards and connected 2 separate spurs using a jb. It's a dangerous set up that can't be allowed to remain. The ring main cable has no flexibility in it. I can put a socket on the wall in a different place to replace one of the spurs (fused outlet) and then half of the ring main can be connected to it, making it part of the ring. I can then run a new cable from that. I will then be left with the other end of the ring cable and the end of the other spur (going to the floor below, through the wall). Would it be correct if I used a maintenance free junction box to reconnect the ring main and run the other spur from?