Hi all

Can anyone advise me on cable size for new cookers please?

Currently there is a 6mm feed for a distance of about 20m from CU to wall
point.
This serves a Creda double oven and separate hob (both to be replaced during
kitchen refurb).
The feed includes a junction box from the time of the kitchen extension
addition.
By re-routing the first "leg", I believe I can reduce the distance to the
junction box to about 12m.
I then intended to put a more substantial jb at that point and run separate
6mm feeds to oven and hob.
The initial 12m run is located in the first floor ceiling and grouped with
the main "wiring loom" for power, lighting etc.
The jb and two separate feeds will run across loft space above kitchen
extension and then plastered into wall (say 7m max length total each
separate feed).

So the key question is:

With this arrangement, will 6mm from the CU be OK for most modern oven/hob
combinations, or do I need to replace all with 10mm?


TIA

Phil

On Tue, 14 Mar 2006 14:41:06 -0000 someone who may be "TheScullster"
wrote this:-

With this arrangement, will 6mm from the CU be OK for most modern oven/hob
combinations, or do I need to replace all with 10mm?

You really need to tell us about the sort of oven and hob you are
looking at. Double oven, single oven, grill? Halogen hob, induction
hob? Look at a few manufacturer's catalogues and give an indication
of what it is you intend to connect.


--
David Hansen, Edinburgh
I will *always* explain revoked encryption keys, unless RIP prevents me
http://www.opsi.gov.uk/acts/acts2000/00023--e.htm#54

"David Hansen" wrote


You really need to tell us about the sort of oven and hob you are
looking at. Double oven, single oven, grill? Halogen hob, induction
hob? Look at a few manufacturer's catalogues and give an indication
of what it is you intend to connect.


Thanks David

I was kind of hoping for:
As long as I'm not going for an industrial grade installation, 6mm will be
OK!
Was that just wishful thinking?

Phil

On Wed, 15 Mar 2006 15:53:27 -0000 someone who may be "TheScullster"
wrote this:-

I was kind of hoping for:
As long as I'm not going for an industrial grade installation, 6mm will be
OK!
Was that just wishful thinking?

Yes. Nobody has any idea what sort of oven or hob you intend to use.
Find an example that is the sort of thing you are looking for and
perhaps someone will be prepared to help you.


--
David Hansen, Edinburgh
I will *always* explain revoked encryption keys, unless RIP prevents me
http://www.opsi.gov.uk/acts/acts2000/00023--e.htm#54

On Tue, 14 Mar 2006 14:41:06 -0000 someone who may be "TheScullster"
wrote this:-

By re-routing the first "leg", I believe I can reduce the distance to the
junction box to about 12m.

A few more questions before anyone can even begin to feel kind
enough to answer your question.

What is the rating and type of protective device?

I then intended to put a more substantial jb at that point and run separate
6mm feeds to oven and hob.
The initial 12m run is located in the first floor ceiling and grouped with
the main "wiring loom" for power, lighting etc.

How many circuits is it grouped with and how heavily loaded are
they? How are the cables fixed? Are they clipped to a wall, run in
trunking? Do they run near a heat source?

The jb and two separate feeds will run across loft space above kitchen
extension

Ambient temperature? Thermal insulation?

and then plastered into wall (say 7m max length total each
separate feed).

Plastered directly in the wall, or in a conduit?


--
David Hansen, Edinburgh
I will *always* explain revoked encryption keys, unless RIP prevents me
http://www.opsi.gov.uk/acts/acts2000/00023--e.htm#54

"David Hansen" wrote


A few more questions before anyone can even begin to feel kind
enough to answer your question............snip

Thanks Dave

I'll have to get her indoors looking through the mags.
Will start a new thread once the details you have outlined are available.

Phil