Cooker Advice - Please First One !

[cyberjunction]

please stay with me, still learning !! Going to a family member to replace cooker and hob.

Current set up,
C/U to Cooker switch 6mm.
Cooker switch to outle plate to Hob 6mm
Cooker Plugged into 13amp ring
40a MCB

The new cooker, is 2.3kW
Hob is 5.8kW
Total Power : 8.1kW - 36amps
With Diversity : 17.8amps 22.8 if with plug socket

I am looking at connecting both hob and cooker to the cooker outlet plate from the cooker switch as with diversity, the 6mm cable is more than capable and is allowed as per 8.4 of the OSG but question is from Cooker outlet plate should I be using 6mm for both the hob and oven to the cooker connection plate as they will joined or should can i reduce the size of cable to flex/1.5mm for the oven as its only 2.3kW? Thinking its going to be tight with 3 x 6mm cables!
Many thanks

 

[GLENNSPARK]

Couple of 2.5mm heat resistant flex`s mate....

 

[trev]

I'd put the oven and hob on different circuits, one on each RCD. That way if you lose one side for whatever reason you still have something for your customer to cook on

 

[benji]

I was looking at a bosch manual last night and they show c/u to cooker switch 6mm ,cooker switch to outlet plate 6mm ,outlet plate to oven 4mm , outlet plate to hob 4mm , 1.5 flex no way, also make sure you get a decent outlet plate ie. mk or crabtree

 

[GLENNSPARK]

I'd put the oven and hob on different circuits, one on each RCD. That way if you lose one side for whatever reason you still have something for your customer to cook on

Yep but this would meen pulling in a new feed and as he has one already......also most households have a microwave now....i know it aint ideal but.........

 

[telectrix]

no hard task to get 3 x 6mm in a cooker outlet. done it a few times.

 

[GLENNSPARK]

just reread the thread and i think he`s on about from the cooker switch to ccu so of course flex would be a nono.....

 

[trev]

Yep but this would meen pulling in a new feed and as he has one already......also most households have a microwave now....i know it aint ideal but.........

True, but I'll bet a £ to a pinch of pig poop that his customer hasn't thought of it and if he puts it over the right way they'll buy it. I wouldn't try to scam a customer but I do think it's down to us to give the best possible advice and imho thats the way forward ther customer can always refuse of course

 

[Richard]

lately, we've been going -

6mm CU to switch
6mm switch to under units
JB, and splice into 6mm with another
one to hob
one to SFS and then flex to oven

Not ideal, but personally (price not a factor) I would pull in two seperate supplies, one cooker, one Hob

 

[dingledong]

lost me again its a 2.4kw oven has it come with flex??? so there for it should be protected by a 13 amp fuse
hob is 5.8kw so stick them into the cooker outlet you have a 2.4kw oven protected by a 40 amp fuse thats not right

 

[cyberjunction]

just reread the thread and i think he`s on about from the cooker switch to ccu so of course flex would be a nono.....[/QUOTE


sorry I have badly worded the question, I didnt mean switch to consumer unit in flex......just had a picture in my head the first time they switch the cooker on to try it and I'm running out of the house....

thanks to all for the super fast reply's

2.5mm heat resistant flex or 4mm t+E - don't want to start any fights here just want to go with the majority - thanks

 

[SPARTYKUS]

Hello cyberjunction :tounge_smile:

there's quite a bit of room in an outlet, the terminals are fairly hefty too. If you plan it well, and take your time, as Tel has said it can be done, fiddley yes, but can be done.

I wired up a ceiling pull shower Isolator the other day, with the normal nightmare-ish 10mm2 cables in and out, ended up jumping into the loft over and over again getting the cables the right way round, with neutral/line the right side, took me AGES (I had time!) but it was a lovely job. Very satisfying. I'm ashamed to say I remember doing one years back and trying to force the damned thing together while I screwed it up and it all just shattered.


What I'm saying is if you think about exactly where each cable comes in, and how it sits, and keep all the ends that are bare beautiful and not mis-shapen, it will be a joy to behold in the end. ANd you'll be sure it'll never melt :33:

 

[cyberjunction]

lost me again its a 2.4kw oven has it come with flex??? so there for it should be protected by a 13 amp fuse
hob is 5.8kw so stick them into the cooker outlet you have a 2.4kw oven protected by a 40 amp fuse thats not right

You are quite right the oven needs 13amp protection which it wont get being wired directly with the hob - any suggestions

 

[Des 56]

Fit a dual accessorie box, outlet plate for hob on one side and a fused spur on the other,

Metal Knock Out Dual Accessory Box 35mm .. Wiring Accessories .. Mounting Boxes ..

 

[GLENNSPARK]

I thought he meant from ccu to the appliances....