In a small pantry there are large wall cupboards down the full length of
2 facing side walls. Beneath the cupboards are work surfaces with large cupboards beneath. All the cupboards are "built in" and have been there since the house was built in the 30s. One of the end walls has a window, sink and double drainers (with cupboards beneath, the other has the room door. There is a vertical mains cable in the end wall, within 150mm of the cupboard, and protected by an RCD. The question relates to whether the corner formed by the end wall and the cupboard on the side wall is an internal corner within the meaning of the regs. If so, what about the short run from the bottom of the cupboard to the draining board?
I could put a back box and blanking plate to mark the cable position, but would prefer not to. What's the verdict of those members of the jury who haven't dozed off while reading this?