Re: Running CAT5 and Ring Main together

["Tim Hawes" <timsyahoo@xxxxxxxxxxxxxx>]

Nigel makes some good comments re: interference.

Per the Regs, you also need a clear space between the mains and LV of
at least 50mm, or have them separated by a physical barrier i.e.
either run them in separate conduits (or in compatment trunking e.g.
dado trunking).

These restrictions don't apply if the LV cable sheath is rated for
mains voltages e.g. the C-Bus Pink Cat5.

HTH,

Tim.

On 10/30/06, Nigel Giddings <nigel@xxxxxxx> wrote:
> Ben,
>
> Most people will cringe if you talk about routing power and data
(CAT5e)
> together... The question is how close before it becomes a problem?
>
> If you have a clear space then try to design the layout with maximum
> separation, 300mm minimum. I have a wall where Power and Data mix and
I
> have arranged the power to one side with data to the other so they are
> separated by the appliances or modules themselves.
>
> The problem is made worse if the current in the mains cable is high,
> higher current produces a stronger magnetic field. This is made even
> worse if the cables run parallel to each other for some distance.
There
> is little or no effect if they cross at 90 degrees.
>
> I have also used metal conduit for the mains power cables which, when
> earthed, provides additional shielding reducing induced currents into
> nearby data cables.
>
> Some photos here
>
> http://node0.corbenic.co.uk/photos/photo1.html
>
> Nigel
>
>
> -----Original Message-----
> From: Ben McCormack
>
> Hi All
>
> Quick question.
>
> I am just about to put some wiring on for my garage conversion. Now
> is it OK to run CAT5 and Ring Main cable together in the same cable
> runs. If not what sort of separation do I need?
>
> Cheers
> Ben


** Sponsored by http://www.BERBLE.com **
all the Cool Stuff, in one Place