New Cooker circuit, is this ok?

[Jonnyk]

Hi guys

I Have been asked to install wiring for a new hob, with extractor hood, the hob instructions say it requires a 30A minimum supply, the hood is only about 200w

Would it be ok for me to install a dedicated ring circuit, in 2.5, for both items, or do i have to give the hob its own 6mm radial?

Any responses appreciated!

 

[GLENNSPARK]

well for a start..we need the installation method......and i also suggest you take a look at table A2 which you will find on page 111 of the on site guide (1st)...

 

[Jonnyk]

Dont have guide in front of me at the minute, Twin and earth, about a 4m run, inbedded in the wall

 

[GLENNSPARK]

well its the first 10A....then 30% of whatevers left....thats your diversity allowance.....work your cable size off that......MCB/fuse to suit.....

 

[D80]

If such a short run why not pull in 2 separate circuits, 6MM for cooker and 1.5MM for extractor?

 

[Jonnyk]

Ok thanks, I havent physically seen the hob yet to see the ratings plate but assuming for now the cable can carry the current, are there any other reasons you can think of I cannot use the method mentioned, regs wise?

 

[Jonnyk]

two seperate circuits is an option certainly, just wondering if the method stated is also

 

[micknew]

Because your not an electrician?

 

[Jonnyk]

I am actually, not on the domestic side usually

 

[GLENNSPARK]

If such a short run why not pull in 2 separate circuits, 6MM for cooker and 1.5MM for extractor?

and why a 1.5mm for the extractor.....1.0mm more that sufficient here.....

 

[Jonnyk]

Thanks for the replies guys, ill just run in a 6mm and spur the extractor from the existing ring

 

[telectrix]

was wondering why you would want a 2.5mm RFC when a 6mm radial is easier. 6mm on a 32A MCB. to cooker isolator is best bet.

 

[GLENNSPARK]

why 6mm?.....the o/p needs to see the rating of this appliance first......it seems like..if in doubt...reach for the 6mm....may be a 4mm will cut it.....

 

[mogga]

I understand your thinking Glenn BUT if this hob goes bobies up and a new one is insalled it MAY be of higher rating so would require cable upgrading

 

[Jonnyk]

6mm on a 32A MCB. to cooker isolator is best bet


Yep this is the route im going down, for the reasons Mogga has already mentioned