Date   : Fri, 18 Sep 2009 17:50:32 +0100
From   : pete@... (Pete Turnbull)
Subject: Leccy @ Acorn World '09

On 18 Sep 2009,@17:11, Andy Ford <acorn@...> wrote:
> Pete Turnbull wrote:
>>
>> That's why building site supplies in this country are 55-0-55V and  
>> never 0-110V.
>>
> Interesting to know that, I had assumed they used 110vac (all those
> portable yellow (isolation?) transformers you tend to see...

Yes, they're 110VAC but centre-tapped to earth so the biggest shock  
you can get is only 55V.

Pete Turnbull
Network Manager, University of York
Sent from my iPhone