You might also want to try uk.rec.sailing for an answer.

"davew" wrote in message
...

Hi,

A friend that's just boaugh a canal boat is 'doing' it up and is worried
about the
electrics and has heard that boats use positive earth so he's asked me for
advice.
I know about electronics & house wiring (well a bit anyway) but have
never
considered this on a boat where he'd like to have a computer TV etc....

Now considering I was going to help him sort the electrics out what else
should I know that's differant from 'Land' electrics I tried searching for
a helpful
UK website but none found.

Any pointers

thanks