Thanks il78
Firstly I dont have gas, 2nd I have just brought these.3rd it is a fan oven, but the book says- 4mm cable for use up to 25amps.
this is worrying both the old hob and doulble oven were connectef to the 6mm cooker circit.
I am all electric and have 2 units Hob and Oven
The Hob uses 6.4kw and the oven uses4.9kw
Both being maximums.
I have a double pole cooker switch with 2 x 6mm wires feeding (ring)the switch and 1 x 6mm cable coming out.
I also have a 2.5mm cable free on the 30 amp ring.
Any suggestions ...