Date   : Tue, 01 Sep 2009 00:00:37 +0100
From   : robert@... (Rob)
Subject: Leccy @ Acorn World '09

On 31/08/2009, Dave Moore <dllm@...> wrote:
> Incidentally, I''ve been advised that the sockets in the lobby belong to a
> separate ring main, which is shared with part of the kitchen.

Personally, that scares me... kitchens can be pretty heavy users of
electricity, when they are in use.  A typical 2KW kettle is over 8
Amps on it's own, for instance.   My grill at home is 2.4KW, which is
10A.  Couple of those and it doesn't leave much over..   I know I've
tripped our 30A ring main breaker by having too much running in the
kitchen at once.. (usually when I'm busy in there, decide it's time to
pause for a coffee, and turn on the kettle!)


On 31/08/2009, Michael Firth <mfirth@...> wrote:
> I agree - I think we need to work out what the typical power consumption of
> a Beeb (or Electron,
> or Atom, and the 32-bit Acorn Systems) setup is, and then multiply that by
> the number of systems
> present.

The back of a model B says 30W, and a Master 50W.  Cubs don't say, but
my acorn Mono monitor says 35W.  The A5000 goesn't give a wattage but
says "240V 1A" which is 240W of course.

I added up all of the wattages or maximum values I could find or
calculate for the mass of kit on the BBS table, for Dave, and got a
maximum possible load of up to 10A.  I don't actually expect it to
take more than around half that, but it's a theoretical possibility
that it could.



>
> I'll put some of my bits on a similar plug in power monitor tomorrow, and
> post the results here.

I've got one of those, and should test my setup, but it's all spread
about the house at the moment.  Do need to get it together at some
point fo a final test, though, I guess.



Rob.