Size of this cable, and suitability for cooker.

[cantab]

This cable looks like 4mm, am I right? (See picture. Upper scale is cm, lower inches)

Untitled

• cantab
• 11 Sep 2009
• 3

Am I correct in thinking that's not enough for a cooker with a maximum current draw of 10.4 kW, and thus a new cable would need to be run?

EDIT: Actually, I may have been a dumbass. 4mm diameter != 4mm^2 cross section! Doh!

Still, confirmation that the cable is suitable would be good.

 

[ricicle]

10.4 kW is 45 amps @ 230V. 4mm² will not carry this.

6mm² will but only under favourable installation conditions ie clipped direct

There is diversity allowable on cookers but you have to decide whether it is ever likely that the cooker will be on flat out eg christmas day. Even then once the heating elements are up to temp. they will be controlling on/off.

Also the suitability of your CU needs to be taken into account with regards to an increase in the protective device size.

 

[holmslaw]

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[ColJack]

never seen 7 strand 2.5mm myself...

where did you manage to get 34A from?
45A - 10A = 35A
35A x 0.3 = 10.5A...
so 10A + %30 of remainder ( 10.5A ) = 20.5A in my books?...
+another 5A if your switch has a socket..

 

[holmslaw]

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[ricicle]

never seen 7 strand 2.5mm myself...

I find that hard to believe, its used all over the place.

Wouldn't that be 7/0.29 ?

 

[Taylortwocities]

I find that hard to believe, its used all over the place.

How would Holmslaw know what happens here, He, apparently, lives in Russia

 

[ban-all-sheds]

Holmslaw obviously didn't realise that ColJack meant he'd never seen 7-strand 2.5mm² twin and earth, and obviously hadn't looked at the picture closely enough to see that it's almost certainly T/E, on account of the solid cpc with add-on sleeving.

I say "obviously", because surely he wouldn't have written what he did just to be deliberately awkward, would he?

 

[holmslaw]

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[ColJack]

as said, I assumed that you realised it was T+E and that I was refering to that.. I've seen 3 strand T+E in smaller sizes, but never 7 strand in anything smaller than 4mm..

 

[cantab]

Yeah, it's definitely twin core and earth. And seven strands (for each of the live and neutral) seems about right.

 

[ban-all-sheds]

Dear knowiitalls have a look at the Link, and say thank you.

OK - if you can provide a convincing explanation for you writing what you did, given the context of this topic and the photo that was posted, which does not involve you choosing to be awkward by deliberately misinterpreting what ColJack wrote.

Can you do that?

 

[holmslaw]

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[ban-all-sheds]

Will you do so now, please?

 

[holmslaw]

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