Re: x10 over three phase

["Harrison, Mark (Alliance)" <Mark.Harrison@xxxxxxx>]

> unless you need 3-phase for the total load in your house (the mind
boggles!)

We did this for a home automation job.

At the last count the client (who for a number of years had been a
professional lighting designer)had 128 centrally controllable lighting
channel put into a 3 bedroom cottage.

The main lighting was on one phase.

The "emergency backup" lighting was on a separate phase, with the
kitchen equipment.

The normal house was on the third.

Mark Harrison
European IT Manager, BP/Bovis Alliance
Tel: +44 181 869 1439
Fax: +44 181 423 7711
SMTP: Mark.Harrison@xxxxxxx



-----Original Message-----
From: Nigel Orr [mailto:nigel.orr@xxxxxxx]
Sent: 04 March 1999 12:59
To: ukha_d@xxxxxxx
Subject: [ukha_d] Re: x10 over three phase


At 12:20 04/03/99 -0000, you wrote:
>My house (in the UK) is probably going to have to put on a three phase
>supply.

Are you fitting some 3-phase equipment, or is it just to get more power?
I'm a bit puzzled, unless you're running some factory equipment or
similar,
and if you are...

>Does X10 stuff work on three-phase systems?

I believe bridges are available, as it's more common in the US (110V
mains), but I don't know if there are 240/415V ones available.

>My electrician says the supply will be "balanced over two
phases."

?  New one on me- unless it's a '2 phase' supply- eg 115V in phase 115V
antiphase or 230V in phase 230V antiphase... or does it mean that 2 of
the
3 phases will be balanced?  Maybe someone else can fill a gap in my
knowledge...

Unless you need 3-phase for the total load in your house (the mind
boggles!), I would have thought you could keep all the X-10 controlled
equipment on one phase, and avoid any problems.

>eGroup of the Day:
>Aframjews - a discussion group about African American Jews

Carefully targetted advertising- with apologies to any African American
Jews reading ukha ;-)

Nigel
--
Nigel Orr                  Research Associate   O   ______
Underwater Acoustics Group,              o / o    \_/(
Dept of Electrical and Electronic Engineering     (_   <   _ (
University of Newcastle Upon Tyne             \______/ \(

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