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[OM] Re: OT Rant: No more $$ to Europe!

Subject: [OM] Re: OT Rant: No more $$ to Europe!
From: Chris Barker <ftog@xxxxxxxxxxxxxxxx>
Date: Thu, 15 Apr 2004 19:28:58 +0100
Thanks Piers.  I must admit that AC electricity has always had me 
somewhat puzzled; I tamper with ring main wiring with great caution!

Chris

On 15 Apr 2004, at 11:46, Piers Hemy wrote:

>
> Quite right, Chris, and (as far as UK supply is concerned) quite wrong
> Daniel, in the sense that you would be ill-advised to mix them up!  
> But I
> will be happy for Tim Hughes to tell me otherwise (again!).
>
> Thw neutral wire *is* neutral, with zero current flowing, when the 
> entire
> system is running properly - the entire system is a three-phase AC 
> system,
> able to provide 415V three-phase, and 24v from any one phase.  For 
> domestic
> supply, single pahse is the norm, and assuming all three phases are
> balanced, there will be no current flowing on the neutral (which is 
> common
> to all three pahses).
>
> It was a question that bugged me at school too (thinking of James 
> Royall's
> original question) but I got the answer in Chemistry rather than 
> Physics
> class.  Put that down to the approachability of the teacher.
>
> Piers
>
>
<|_:-)_|>

C M I Barker
Cambridgeshire, Great Britain.

+44 (0)7092 251126
ftog at threeshoes.co.uk
http://www.threeshoes.co.uk
http://homepage.mac.com/zuiko
... a nascent photo library.


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