[Gllug] OT: Mains electricity colour coding.

[Dylan]

On Tuesday 26 Oct 2010, Christopher Hunter wrote:
> On Tue, 2010-10-26 at 15:20 +0100, Dylan wrote:
> > In practice, only lamps, motors and heating elements use AC directly,
> 
> Transformers do too.  Much of the gear we use today is low voltage stuff
> powered via a transformer, rectifier and smoothing capacitor (to convert
> to DC).  The transformer requires AC to work at all!

Well, yes - but the transformer is not the appliance, the computer or 
amplifier or radio or whatever is ... so the tranformer is, in a sense, simply 
a component.

> 
> Of course, most of our computers are powered by switched-mode power
> supplies, but that's a particularly unpleasant "can of worms" best left
> for another discussion!



> 
> Chris


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