Cooker cable

[Anthony16090]

Can someone tell me about cooker cables, the in-laws have had a new kitchen fitted, but they have put the cooker on 2.5mm cable, and wired it in to the ring main off a switched fuse ???
the cooker is a range master, for some reason the kitchen fitters took the manual for the cooker ???
but I have download a copy, it states that with both ovens, clock and grill it's 7.5kw (the hob is gas)
the reason I ask is because on Saturday had family party, used the ovens and the fuse blown, not much fun when your half way cooking, I always thought cooker cables are 6mm.
the manual does say 2.5mm to 6mm but to me the lines point to the cores in the cable, if that makes sense

 

[Darkwood]

Welcome to the forum .. I've approved your thread for general forum for speed of response as your only asking advice, when admin is on line you will be assigned a DIY status.

Be gentle boys he only asking if it's done wrong.

 

[Octopus]

Do you have the Rangemaster model number?

 

[Anthony16090]

Rangemaster 90 duel fuel, that's all the information I can get off it

 

[Octopus]

So if its duel fuel - what is gas and what is electric?

and it was fitted by a kitchen fitter - enough said.

 

[Anthony16090]

Sorry
forgot the Kitchener bit

rangemaster Kitchener 90 duel fuel

 

[Octopus]

Sorry
forgot the Kitchener bit

rangemaster Kitchener 90 duel fuel

what is electric and what is gas, and what is the hob?

 

[Anthony16090]

Got gas hob, got double ovens, got grill and clock that's elec

 

[Plonker 3]

Well if I have the right one, its rated at 7.5 Kw

Kitchener 90cm Range Cooker - Dual Fuel | Rangemaster

 

[Anthony16090]

Added a screen shot from a page in the manual, the cooker looks the same but as the kitchen fitter took the one that comes with it, I can't be 100%

 

[Anthony16090]

On page 25 does it have the 2.5mm min 6mm max

 

[uksparks]

Some ovens look physically quite large but don't use much power. If it says 7.5kW then it needs to be bigger than 2.5mm cable

 

[Leesparkykent]

Cooker can be connected utilising a 3phase supply and removing the bridge at the connections on the cooker which in turn a smaller csa of cable could be used hence the minimum of 2.5mm which you mention. As you probably don't have a 3 Phase supply then ideally a 6-10mm cable should of been installed for the cooker back to the consumer unit.

 

[NDG Elecs]

I personally would not allow the idiot to come and attempt to rectify it. A nominated registered electrician selected by him yes, but the original person that put that cooker on to the ring circuit, no way.

You need a separate cooker circuit installed which is notifiable and you should be getting a installation cert and compliance cert.

A big question is whether this cooker was always going to be the one installed, as this will effect whether you have any recourse to the company. If they quoted based on this cooker being installed the work should have entailed a new circuit and upgrading to bonding as necessary.

 

[Octopus]

Wot he said ^^^^

should be on its own circuit.

 

[telectrix]

totally unacceptable. any appliance > 2.2kW should be on it's own circuit, not the socket circuit. a dedicated 32A circuit wired in 6mm is required.

 

[gnselectricals]

totally unacceptable. any appliance > 2.2kW should be on it's own circuit, not the socket circuit. a dedicated 32A circuit wired in 6mm is required.

Is it not over 2kw cooking appliance only ?

 

[Risteard]

If it says 7.5kW then it needs to be bigger than 2.5mm cable

It is talking about the total connected load. Can the grill be energised at the same time as the double oven, for example? £100 says it can't be (after all the grill will be housed in one of the ovens).

The load will also cycle a lot as temperature is reached.

So we don't know the real load.

 

[Octopus]

It is talking about the total connected load. Can the grill be energised at the same time as the double oven, for example? £100 says it can't be (after all the grill will be housed in one of the ovens).

The load will also cycle a lot as temperature is reached.

So we don't know the real load.

We have a Range master and yes we can use all the elements at the same time as the grill is separate from the ovens !

 

[telectrix]

Is it not over 2kw cooking appliance only ?

nope. e.g. immersion heater - any appliance.