Re: FW: CAT 5 for new-build --- how many per room?

["Mike Dalgleish" <md@xxxxxxx>]

When you do your UK wiring guide, dont forget us normal folks who only need
2 CAT5 connections per room!

Mike

> -----Original Message-----
> From: Keith Doxey [mailto:keith.doxey@xxxxxxx]
> Sent: 20 July 1999 08:53
> To: 'UKHA Discussion'
> Subject: [ukha_d] Re: FW: CAT 5 for new-build --- how many per room?
>
>
> Whoops....thought this was giong to the list as well !!
>
> Keith Doxey
> http://www.btinternet.com/~krazy.keith
> Krazy Keith's World of DIY Home Automation
>
> -----Original Message-----
> From:	Keith Doxey [SMTP:keith.doxey@xxxxxxx]
> Sent:	Monday, July 19, 1999 10:47 PM
> To:	rhughes@xxxxxxx
> Subject:	RE: [ukha_d] Re: CAT 5 for new-build --- how many per room?
>
> Hi Rick,
>
> Presumably your shell with roof also has floor joists as well :-))
>
> When I helped Mark McCall to prewire his house we spent the first 4
hours
> staring into the joist space and up into the rafters planning
> where to run
> the cables.
>
> Node Zero in Mark's house is located at one end of the house which
means
> EVERYTHING had to go to that end of the house. In an ideal world Node
0
> would be located as centrally as possible so that everything
> radiates from
> that point but the house design didnt permit that.
>
> Make no mistake..... you will have a VERY large bundle of cables
possibly
> 6-8 inches in diameter or even greater. (The alarm and TV coax wasnt
in
> when I left and there was already a 6 inch bundle.
>
> The major problem we had was that the cables needed to run along
> the house
> but all the joists were across the house meaning that our path
> was blocked.
> This presents severe problems in routing the cables.
> YOU CANNOT CUT HOLES THAT SIZE IN THE JOISTS !!!
> Well you can but the house will fall down :-((
>
> We decided to run the cables through the roof space and I had the
bright
> idea to get some guttering and lay it in the roof trusses as a
> cable tray.
> This kept everything nice and neat as well as supporting and
> protecting the
> cables. Luckily the upstairs walls are studwork construction so it was
a
> doddle to drop through the walls of the first floor to reach the
ground
> floor. From our central cable run we were then able to run between the
> joists to get across the house.
>
> The big disadvantage of running through the loft is that every
downstairs
> run used an extra 8 metres of cable to go upto the loft as opposed to
> running between the ground floor ceiling and first floor :-((
>
> One idea I have in a new construction is to decide where you want the
> central run through the house, ideally above a corridor/hallway, and
have
> the architect specify different sized timbers for the joist in that
area.
> Instead of 9x3 a timber of equal stength but smaller height eg
> 7x5 would be
> used. The top of the joists would be aligned with the other
> joists leaving
> the lower edge approx 2 inches higher. By running 2x2 timber in the
> opposite direction gives a fixing for the ceiling at the same
> height as all
> other rooms but gives you a clear run with several channels of
> approx 2x14
> inches to run as many cables as you like.
>
> For a renovation project a similar approach could be adopted but the
> ceiling in a hallway being reoved and lowered by a couple of inches. I
> would imagine that the difference in ceiling heights would be barely
> perceptable unless you already had low ceilings. This could also
> be done on
> the ground floor by constructing a cable tray under the floor joists
with
> 2x1 and plywood. That is what I intend to do in my next house.
>
> As I have already said...its impossible to think of everything you
could
> ever need, you WILL forget something....guaranteed.
>
> Just give thought to how you can add at a later date and make
> provision for
> that event.
>
> Dont forget to wire for automated curtains and blinds. Most seem
> to be low
> voltage with Wall Wart power supplies. Consider a run of conduit to a
> location (cupboard etc) where you can mount several power
> supplies and run
> the power to the windows so avoiding the need for a power unit at the
> curtain track.
>
> Consider....
> Security -PIR's, door contacts, CCTV
> Environment - Temperature sensors, Fans, electrically operated
radiator
> valves.
> Audio - Ceiling speakers for whole house audio, mikes for Voice
> Recognition
> The list is endless.
>
> You have this one chance to do everything easily and relatively
cheaply.
> It can always be done later but will be much more difficult and
expensive.
> Retro-fitting is a nightmare involving all sorts of hassle with
> the decor,
> try and get it right first time....and if you succeed let us know
> all about
> it. If you fail, warn us of the mistakes you made.
>
> By the time we have all done this we should have the UK Home Wiring
Guide
> to beat all others.
>
> Good Luck
>
> Keith
>
> Keith Doxey
> http://www.btinternet.com/~krazy.keith
> Krazy Keith's World of DIY HomeAutomation
>
>
> > -----Original Message-----
> > From: Rick Hughes [mailto:rhughes@xxxxxxx]
> > Sent: 19 July 1999 17:18
> > To: Keith Doxey
> > Subject: Re: [ukha_d] Re: CAT 5 for new-build --- how many per
room?
> >
> >
> > Keith,
> >      I am in the middle of building my own place now - be
> > interested in any
> > thoughts you might like to pass on cabling, what you would do now
on a
> new
> > build etc.
> >
> > At the moment it is a shell with a roof on, so I can add anything
> > .... now.
> >
> > Rick
> >
> > Keith Doxey wrote:
> > >
> > > Hi Des,
> > >
> > > Run trunking inside fitted cupboards/wardrobes to go between
floors.
> > > you ought to be putting it in now. .............
> >
> >
> > --
> >
_______________________________________________________________________
> >
> >            Rick Hughes
> >    \   Customer Services and Support Programme Manager
> >    \\   Newbridge Networks Limited
> >    \\\   +44 1633 772327
> >            +44 831 680524 (mobile)
> >
> >
_______________________________________________________________________
> >
>
>
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