> -----Original Message-----
> From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On
Behalf
> Of Jinx
> Sent: 08 August 2009 00:20
> To: Microcontroller discussion list - Public.
> Subject: Re: [EE] Element corrosion
> 
> My nephew the apprentice sent me this in our correspondence about
> heater elements
> 
> ===================
> 
> 
> I drained the cylinder, replaced the element, refilled the cylinder
and
> wired in the new element.......... only to have the exact same thing
> happen!! A little anoyed, and puzzled, I decided to put my voltage
> testers on the incoming to see if there were any abnormalities. On
> the isolating switch, I tested between phase and earth - 230v, phase
> and neutral - 230v, and then...........earth and neutral - 230v dun
dun
> dunnnnn. I was on to something, as there should be no potential
> between earth and neutral as they are connected back at the Earth-
> Neutral bars in the switchboard

Given a single phase system, I don't quite understand how there could be
230v between Live and Neutral at the same time as 230v between Neutral
and Earth?

Mike

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