On the RCD (main CU) side I have a 16(spare) 32, 32, 32, 40 mcb's on the non rcd side I have 6, 6, 6, 16, 32 mcbs the last 3 being spare. Can I just swop the spare 32 on non rcd side with 16 on Rcd side and then run 6.00mm2 T+E from new 32mcb on rcd side through wall(attached) into New garage CU (40a/30ma)
See this thread : http://www.screwfix.com/talk/thread.jspa?threadID=2786 for a discussion of this very topic