Cooker wiring dilemma

Mark Waistnidge · Mar 8, 2017

A house renovation, including kitchen extension, all plastered out with a 10mm twin+e feed in place for the 7.3kw induction hob.
The single oven and the combi microwave should have been spurred from the kitchen ring as each being 2.9kw. Neff have decided to up them to 3.45kw for the oven and 3.65kw for the microwave.

Is there anyway i can make the 10mm cable thats in position work for them all or do i need to ruin the new decorating?

Help appreciated.

Phil Thompson · Mar 9, 2017

Vortigern said:
Ok crazy idea. Submain box three way come off of that for all the appliances.

If possible I'd favour this option too. But I guess it depends on the client and their decorating choices if that's doable or not.

The Ghost · Mar 9, 2017

Well I spose if they don't go for that then they will have quite a few more decorating choices to make when you chase in a couple more circuits, is there enough spare ways at DB? @Phil Thompson ?

Phil Thompson · Mar 9, 2017

Dunno, thankfully it's not my job, I was just agreeing with your thoughts lol

The Ghost · Mar 9, 2017

Hellmooth said:
Even at 4800kw

Yeh that is a bit much for a ring

Mark Waistnidge · Mar 9, 2017

The ring would have been fine as no other appliances in there. Only a toaster and dishwasher.
I think my best option is the duel cooker connection unit and run 4mm flex to them.
No chance of a sub CU in there. I did think of this.

Dave OCD · Mar 9, 2017

You could fit a 3 way CU in the adjacent base unit perhaps ?

Mark Waistnidge · Mar 9, 2017

Yeah i have considered options on this. Its a very expensive, fancy kitchen. I cant see them going for it. Client is back on site monday so im going to throw some options there way.

Hellmooth · Mar 9, 2017

Vortigern said:
Yeh that is a bit much for a ring

Lol whoops

Phil Thompson · Mar 9, 2017

If you are going to bring it to them then draft a file explaining the increased wattage, the issues this creates and why, and then list their options, with each option give a price and a list of what will need to be made good.
Don't forget to suggest the option that they switch the 2 ovens for suitable ones. Most likely they should be able to do this without much hassle.