- if you have any switch mode power supplies on board, and these days that includes most t.v's, radios, computers, plug packs, l.v. lights, these poke all the rf/noise they generate to earth, and nine times out of ten the voltage they send to earth is enough to trip any galvanic isolator, and so without knowing it your plug in gadgets have just side lined your electronic isolator.
- there's a dam fine reason the only (low tech, easily attainable, super reliable) protection used by those who know is the old double wound isolating transformer.
On 23 July 2013 23:12, Arby bernt <arbybernt@yahoo.com> wrote:
Looking up "bridge rectifier galvanic isolation" I came across the following:The DIY solution...Arby
From: Matthew Geier <matthew@acfr.usyd.edu.au>
To: electricboats@yahoogroups.com
Sent: Tuesday, July 23, 2013 2:48 PM
Subject: Re: [Electric Boats] proper grounding for electric yachts
You can get devices called 'earth clamps' that are normally open circuit
but prevent a high potential difference by 'firing' and shorting it out.
I wonder if some similar system is available in the marine environment
that can be used to ensure the various 'grounds' can't get a dangerous
level of potential between them, but normally keeps them isolated.
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