I'm converting my basement into a utility room/ wine celler / WC. but I need to sort out the electrical cupboard. The Consumer Unit is fitted in a 3ftx3ft cupboard all the cables to from this fan out to go up every wall including the door posts, very pretty but not practical. I want to remove this cupboard and would like to have all the cables run up the back wall. My question is, to do this some of the cables will have to lay across other cables. Is this OK or do I have to space them out or bridge the crossovers. Can anyone enlighten me.