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 Post subject: My Kitchen Wiring
PostPosted: Mon Jul 23, 2018 1:24 pm 
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A qualified electrician ( now living in New Zealand with his own business ) rewired our house many years ago.

I am fitting a new Kitchen, removing the gas cooker and installing a Neff electric oven (2.9kw) and gas hob.

At the moment there is only one socket on the wall where the oven is going.

I have discovered that power to just this one wall socket is fed from the the C/U trip labelled 'kitchen',
all the other kitchen wall sockets are fed from the C/U trip labelled 'downstairs ring' !

It looks like the electrician has just fed a 2.5mm cable to one wall socket straight from the C/U, (no ring main)
every other wall socket in the house stays alive when the trip labelled 'kitchen' is removed.

So, I have a 2.5mm cable straight from the C/U to the kitchen where I want the cooker, hood, hob ignition
and one wall socket wired in.

I know that the cooker can be on a plug, the Neff oven is Model B44M42N5GB/01 (2.9kw) and the installation instructions state ...

"In the installation, there must be an all-pin isolating switch with at
least 3 mm contact gap, or the appliance must be connected
using a plug with an earthing contact. This must remain
accessible after installation."

I also know that the cooker will not draw 2.9kw all the time and the best option is to have the kitchen rewired again but I
just wonder what others think.


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 Post subject: Re: My Kitchen Wiring
PostPosted: Mon Jul 23, 2018 6:52 pm 
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2.5 mm is normally a bit on the small side for a cooker circuit. Pis please of the CU and switch that supplies the cooker/and socket ?

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 Post subject: Re: My Kitchen Wiring
PostPosted: Mon Jul 23, 2018 10:13 pm 
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Its quite normal for an electric oven to just "plug in"

Fret not, a forum is a collection of opinions. Above, are mine.

Which is correct? Metre or Meter? Click the link to find out more.

Working on anything electrical? have you got a multi meter? why not? Would you hit a nail with a shoe?

If gloom had a voice, it would be me. :mrgreen:

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 Post subject: Re: My Kitchen Wiring
PostPosted: Thu Jul 26, 2018 11:41 am 
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2.5 mm cable is normally rated at around 20 amp, it does vary, and if correctly wired the MCB should be of a size so that it trips before the cable over heats, likely not 2.5 but 4 mm cable which is hard to see it is any larger outside, and likely wired ready for cooker, but even if not assuming correct in first place worst case is the MCB trips.

And your oven should be fine on that supply.

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