Oven Wiring - Can extend the cable?

[matty0908]

Hi,

I need to move the oven switch 6" further away from the incloming feed (new bigger oven), the exisitng cable is not long enough!

What are my options? The work I am doing will be certified and replacing the whole cable is NOT an option??

The oven is a dual fuel model, max rating at 7.4kW, so 30A and 4mm is OK then?

I would like to use some ceramic 30 amp choc block in a recessed back box, ceiling height and run the new cable down to the oven switch.

What do the regs say?? Replacing the whole cable would require destruction of a £3k floor so that aint happening!

Many Thanks,

Matt.

 

[Steve]

What you suggest is ok - as long as cables runin safe zones, which are directly vertically and horizontally from any outlet or acessory.

 

[securespark]

7.4kW = 32.17A @ 230V.

You can apply diversity, but I'm more worried about the installation method, circuit length & volt drop.

How long is the circuit, and through what types of material does the cable pass along its route?

 

[matty0908]

inThe cable run is largely in the ceiling cavity (loft insulated) then down the plasterred wall. Total length = 6m approx. 7.4kW is all the electrics in the oven on and flat out. Its a dual fuel double oven, so in reality one oven will be used - and who cooks on full power?!?

Given the choice I would install 6mm cable, but a new cable isnt an option!

Thanks,

Matt.