Hi all, just joined, starting my Nvq soon. Was wondering if I'm correct in assuming the cooker can be on a 6mm conductor on a 30amp RCD and the hood can be on 1.5mm if it's a spur?
But didn't you say earlier that it would be cheaper just to run the 1.5 from the busbar to the FCU? Now with mechanical protection the price on parts and labour are going up. Let's face it, shall we just use a mcb from the busbar to the appliance, there we go nice and simple and cheaper. Or if there isn't a spare mcb, tail off the busbar to a 2nd c/u or stand alone mcb via a double pole isolation switch. That's the correct application for the use of a cable coming from a busbar within 3m, not a spur to a cooker hood.
thanks wire thats what im try to tell them.lol imbored of this now. so paul in domestic you would hav to keep same cable csa to fcu then you could drop csa size..
sorry for going on guys. i did get comercial and domestic mucked up from start