Re: P=VI Question C-Bus type content

["Frank Mc Alinden" <fmcalind@xxxxxxx>]

Hi Doogie
Power in = Power our (almost except as Phil has mentioned effieciency) so
105w / 240v = 0.43A......So the 1amp per channel is ok....I have 3
transformer type lamps each 50w on a single dimmer channel rated at 1 amp
.........All my lites are low voltage halogen...

Frank
----- Original Message -----
From: Doogie Brodie
To: ukha_d@xxxxxxx
Sent: Tuesday, June 24, 2003 8:12 AM
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