What size cable and circuit breaker do I need for our new cooker, it has a load of 14.8 Kw 230 volt?

Answer 1

14800w divided by 230v = 64.347Amp
(Even with volt drop over a run of 30m it comes out as 64.35amps at a percentage drop of 2.4% and diversity cant be included in to this because u can have all 4 rings on at one time therefore drawring a full load)

You will need 16mm twin and earth

The breaker you will need is 80Amp (Please note: the average incomer on a domestic property is at 100A {on a new installation} -old can sometimes be as low as 60amp)

-Your main incoming cable and fuse may not be able to take this kind of load unless the electricity boards BS88/BS1361 cartridge fuse is rated at 80A+

The maximum current carrying capacity for a 16mm cable (which the breaker is there to protect it DOES NOT protect the appliance) is around 96Amp

Due to it being a new installation it MUST be on the RCD protected side of a split load consumer unit/be on its own RCCBO

Answer 2

The formula you are looking for is I=W/V
Where I is the current in Amps
the W is power or wattage
and the V is voltage
So your I = 14800/230 which is 64.34 Amp
I would consult an electrician that is a lot of juice. Based on the numbers you will need at least a 6 gauge wire and an appropriate breaker. I would check if whatever you will be using really uses 14.8kw it may just be a peek situation. Just as a reference an average house in the US uses approximately 15Kw
Good luck with your project

Answer 3

Within the USA the national electrical code for wall outlets call for using 12 gauge wire and a 20 amp breaker and a 20 amp outlet. They have to be sized together like this. If you are using heavy duty equipment that draws a lot of amps then only have 1 outlet on that circuit. You really should consult a local electrician on this.

Answer 4

Taking diversity into consideration as one should when dealing with cookers,your load would then be equivalent to 26.3A. If the cooker control unit has a socket with it then you would need to add an extra 5A.

Hence a 32A MCB would be sufficient.

You would need a minimum of 6mm cable, but for future proofing I would recommend 10mm.

If you do have a CCU with a 13A socket on it (which I don't recommend), then your circuit will need to be RCD protected.

In any event any work undertaken in a kitchen is notifiable.

Answer 5

Nigel's explained it pretty well.

You may still d-i-y if you tell building control first. (England & wales). Minimum charge seems to be 100quid + vat (depends on the local council). might as well get a spark in at that price.

Scotland has it own rules...

IF however all you are doing is swapping over your new cooker for an existing one, then it's not notifiable under Part P and building control will not be interested..

Answer 6

Thats 64 amps...thats far too much for a domestic supply..you need to speak with the electricity supply company.

Check is this a domestic cooker????

14.8 kw is very high.

Maybe you are having a joke??

Answer 7

A bit of simple physics and maths tells me you need a cable that will carry just over 64 amps!

Answer 8

depends on the length of run from your circuit breaker panel to the cooker-normal average would be 8/3 gauge wire and double pole 30 amp breaker.Best to ask an electrician in your area as there are building codes that have to met in case you have a fire and that wrong wire was the cause, then no insurance coverage for your loss is a possible result.

Answer 9

all household cookers i've seen are wired up with 12mm cable, but if your right about the 14.8w you'll need to use some real thick SWA cable, you won't get anything else that'll take the ampage

Answer 10

16mm Twin And Earth