[Gllug] OT: Mains electricity colour coding.

[Dylan]

On Monday 25 Oct 2010, John Winters wrote:
> On Sun, 24 Oct 2010 22:57:01 +0100, Richard Jones <rich at annexia.org>
> wrote:
> [snip]
> 
> > ...or that my relative forced a plug into a different-
> > shaped socket.  Anyone know more?
> 
> I used to work for a theatre supplies company, and theatres tend to use
> 15A (round pin) plugs and sockets rather than 13A (rectangular pin) ones.
> Given the rubber plugs and sockets generally in use, it was not uncommon to
> find a 13A plug forced into a 15A socket.  (Not in a theatre I hasten to
> add - more likely by someone in an amdram company.)
> 

Indeed - I used to teach technical theatre - the round pin plugs would be used 
on dimmed circuits which should only carry resistive loads which can cope with 
significant current and voltage variation (bascally filament lamps only). Very 
interesting things would happen if electronics or motors got plugged the wrong 
socket!

Dx

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