Re: Planning Ring Mains and Circuits

["Jon Wilkins" <jonpdwilkins@xxxxxxxxx>]

** Disclaimer - I'm not a electrician, just a householder that's done
some
reading **

- I dont think there is a socket limit per circuit, other than what would
be
sensible to keep total current drawn below the circuit's protection rating
at the fusebox (32A for a ring final, 20A/32A for a radial, IIRC).
- Often it's suggested to have fridge & freezer on their own circuit(s)
-
idea being you dont want these to go off if something else trips your RCD
while you are away.

Also, assuming you are in England or Wales:
- This would be classed as "notifiable" -- meaning there is a
legal
requirement for either you have to go through building control or get in a
part-p registered electrician
- If you're intending to DIY the original re-wire you need to learn up on
the wiring regs & building control side of things.
- Even if you are just going to DIY some of the HA later in the future then
it would be a good idea to read-up know so you understand what you
can/can't
do without the hassle & expense of involving your council's building
control.  You can then keep this in mind when the electrician or you
designs
the original re-wire.

Question about re-wires often come up on the forum at
"diynot.com".  Might
be worth a look - they likely wont understand the HA side though and some
will vociferously suggest you should get a spark to do it all, but others
will give lots of good advice.  (no connection, just read it occasionally
&
have learned a lot from it)

jon

On Sun, Mar 23, 2008 at 2:02 PM, Ben McCormack <
yahoogroup@xxxxxxx> wrote:

>   Hi All
>
> I am starting to think about the planning of the ring mains within the
> house. Lighting will probably be an automated system (CBUS) so the
> wiring for that is all taken care of.
>
> The whole house will be gutted and I am intending to run new Ring
> Mains for sockets. House is about 240sq m.
>
> Are there any guidelines?
>
> I know each ring main cannot cover more than 100sq m.
> Any idea on the maximum double outlets on each ring?
>
> Here are my thoughts
>
> Kitchen Ring main
> Dedicated Ring for HiFi - Stopping interference
> Ring Main for Node 0 Wiring Cabinet and Servers
> Circuit for Outside Sockets
> Circuit for Cooker
> Circuit for Immersion Heater
> Upstairs Ring main
> Downstairs Ring main
>
> Anything I have missed?
>
> regards
> Ben
>
>



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