RE: Re: Getting Ready for CBUS

["Dean Barrett" <dean@xxxxxxx>]

You dont need further isolation at the consumer unit locations, the 1.5
incoming is protected at the source by 10amp mcb.

I cant find the exact product but these
http://www.rapidelectronics.co.uk/control_28-0390.htm
- 1 for each circuit -
feed the bottom of each with the 1.5 feed looped in and out, and then put
your circuits in the top you will power them all until you have cbus.

Use a couple linked together on one end for the neutrals and earths.

Make sure you leave all cables long for future !


Dean.

-----Original Message-----
From: Frost Neil [mailto:Neil.Frost@xxxxxxx]
Sent: 10 November 2003 12:05
To: 'ukha_d@xxxxxxx'
Subject: RE: [ukha_d] Re: Getting Ready for CBUS


I think I'm getting it.... :)

. The Gnd floor lights start at the main consumer unit on a 10a mcb (done)

. The 1st floor lights start at the main consumer unit on a 10a mcb
(separate to the above - Done)

. I bring the 1.5a Twin+Earth for the gnd floor lights, into Node0, into a
double bank consumer unit with 1a mcbs per light circuit

. I bring the 1.5a Twin+Earth for the 1st floor lights, into Node0, into a
double bank consumer unit with 1a mcbs per light circuit (separate to the
above)

(I assume that each of the consumer units in N0 would have their own
incomer
switch?)

. Each light circuit has its own junction box which feeds the lights and
the
switches (this is done), these will have their own mains feed from the
consumer units in N0 from a 1a mcb(1 per circuit).

For now, will this work without integration of the Cbus modules?
There wouldn't be any live rails?
And at later date I could then put the Cbus stuff in?

Thanks again

Neil

-----Original Message-----
From: Dean Barrett [mailto:dean@xxxxxxx]
Sent: 10 November 2003 11:24
To: ukha_d@xxxxxxx
Subject: RE: [ukha_d] Re: Getting Ready for CBUS


If you want to use CBus i would suggest that you could wire and mimick the
layout of a CBus dimmer module to save future alterations.

Frank is right one or two 10amps per floor will be enough depending on how
many lights you have, you indicate you are planning on using 8 channel
dimmers - so max 8amp load so 1 x 10amp feed will be sufficient wired via
1
or 1.5mm cable, as your present circuit feed.

Take the feed into a suitably wide unit - make sure its double bank as
each
outgoing circuit should be fed via 1amp MCB - on the top din rail mound
snap
on terminals in a row on the bottom of the terminals you could daisy chain
the 1mm feed to link them all together, on the top put your individual
circuits into them - put all your neutrals together at one end and all
your
earths, this will mimick the layout of a cbus dimmer module.

Do you plan on wiring new circuits via traditional light switches for
moment
? - you could then joint and plaster over when you implement CBus.

If all this doesnt make sense - mail me direct and i could fax you a poor
diagram of what i mean :)



Dean.

-----Original Message-----
From: Frost Neil [mailto:Neil.Frost@xxxxxxx]
Sent: 10 November 2003 11:12
To: 'ukha_d@xxxxxxx'
Subject: RE: [ukha_d] Re: Getting Ready for CBUS


Thanks Frank,

I've got the upstairs and downstairs on two separate circuit breakers
anyway
in the main consumer unit(CU) where the mains comes in off the street,
but
in preparation for future installation, I was thinking of splitting that
even further, that way, I assume, it would be easier to install the cbus
bits.. (Into additional CUs located in Node0, the main CU is in the
kitchen).

Neil

-----Original Message-----
From: armagh_elect [mailto:fmcalind@xxxxxxx]
Sent: 10 November 2003 11:06
To: ukha_d@xxxxxxx
Subject: [ukha_d] Re: Getting Ready for CBUS


Hi Neil


> feeds for each set of lights via individual 6a mcbs (each set of
lights
> having its own mcb).?

You could do it this way....I would have thought a circuitBreaker
for upstairs and one for downstairs....I have mine on a 10A circuit
breaker....Dean will be able to clarify this one.......

> How wide does the consumer unit need to be for the 8way CBUS unit
(I guess
> in mcbs..)?

12 modules........


> switches, the CBUS "dimmable" unit says it is for Low
voltage and
> incandescent lights.... Do I use that for the mains halogen?

Yes....

> Oh and does anyone know the best place to buy low cost consumer
units?

Paul Gale or Brian ?? can point you in the right direction......

HTH

Frank

--- In ukha_d@xxxxxxx, Frost Neil <Neil.Frost@s...> wrote:
> Hi all.
>
> I've been drooling over Franks CBUS installation thinking "I
Want,
I Want".
> But as always funds become an issue.... So
>
> I'm in the process of rewiring the lights in the house and had a
> thought..... I can't afford the CBUS stuff yet... but I should be
able to
> cable for it.
>
> The mains feed for the upstairs lights goes through my Node 0 so,
is it
> feasible to put a consumer unit in the middle of it all and,
instead of
> running the mains feed from junction box to junction box, run
separate mains
> feeds for each set of lights via individual 6a mcbs (each set of
lights
> having its own mcb).?
>
> That way when I come to put in the CBUS (or as an interim put some
X10
> modules in) all the mains wiring is in place and I can just swap
the mcbs
> for the CBUS module.
>
> That brings me onto another couple of questions.....
>
> How wide does the consumer unit need to be for the 8way CBUS unit
(I guess
> in mcbs..)?
> I have Mains halogen lights in the rooms that are dimmable using
IR light
> switches, the CBUS "dimmable" unit says it is for Low
voltage and
> incandescent lights.... Do I use that for the mains halogen?
>
> Oh and does anyone know the best place to buy low cost consumer
units?
>
> TIA
>
> Neil
>
>
>
> [Non-text portions of this message have been removed]



UKHA 2004: 15th and 16th May 2004

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