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RE: P=VI Question C-Bus type content
- To: <ukha_d@xxxxxxx>
- Subject: RE: P=VI Question C-Bus type content
- From: "Phil Harris" <phil@xxxxxxx>
- Date: Mon, 23 Jun 2003 23:20:08 +0100
- Mailing-list: list ukha_d@xxxxxxx; contact
ukha_d-owner@xxxxxxx
- Reply-to: ukha_d@xxxxxxx
Take it against the 240v but allow the transformer being 90% efficient to
be
on the safe side...
Phil
> -----Original Message-----
> From: Doogie Brodie [mailto:ukhad@xxxxxxx]
> Sent: 23 June 2003 23:12
> To: ukha_d@xxxxxxx
> Subject: [ukha_d] P=VI Question C-Bus type content
>
>
> Hi guys,
>
> At the risk of sounding blonde......
>
> I'm trying to do some sums for a C-Bus install, and halogen
downlighting
> is where I'm falling over.......
>
> 2 options, low voltage or mains voltage. If low voltage, eg 12v
> transformer supplying 105W, is this I=P/V so I=8.75A which means a
> standard 1A or 2A C-Bus channel will not support it, or is the 105W
> taken against the 240V supply voltage so I<0.5A so it's fine under
one
> C-Bus channel....?
>
> Is the general consensus with C-Bus to go for mains voltage or low
> voltage for halogens?
>
> Cheers!
>
> --
> Doogie
>
>
>
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