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Hi I'm upgrading my oven and hob and am looking for confirmation on my calculations. Currently it is 6mm2 wiring through the isolation switch with a 5A socket included. Outlet just under 14m from consumer unit, B40 MCB & RCD, cable running through ceiling void (some with glass fibre...

I was thinking of putting some of this up in a ceiling whilst I have the joists bare, from below that is, before putting new plasterboard up. Will it be ok to just lie any cables on top of it? Thanks Dain