"Tom B" wrote in message
...
On Fri, 23 Jul 2004 21:24:13 +0100, Lurch
wrote:

On Fri, 23 Jul 2004 17:56:18 +0000 (UTC), Tom B
strung together this:

Errrr... I must be missing something here. What is the point of
connecting all
the bits of metal together but not to earth? This doesn't "make
everything in
the bathroom at the same voltage". It just makes them all 'floating',
just the
same as if you leave them individually 'floating'.

By cross-bonding everything you are holding them all at the *same *
floating potential. If you don't cross-bond them then they are at
*different* floating potentials.

If they are floating there is no source (or sink) of current to do any
damage.


Current source and current sink are two entirely different things - and have
nothing to do with the subject under discussion.