2.8kW fan assisted oven, how to supply it?
I've been asked to do some work for a guy, mainly install/run a supply for a 2.8kW fan assisted oven (hobs seperate). He has kids and because of the limited access to sockets he wants a way of isolating the ovens (cooker switch) instead of just plugging it into the ring. I carried out cable sizing calculations and voltage drop calculations for this and applied a 50% diversity and I got that I could supply this using 2.5mm twin and earth with a 20A breaker BS 60898. Is this the case or have I went wrong somewhere?
The second point is that he has 2 of these ovens, is there a better way to supply this other than using 2 20A breakers and 2 2.5mm feeds?
Need feedback asap
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