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Subject: Re: TWL: Alternatives to isolation transformer?
From: Frank Burrows (fburrows@XXX.XXX)
Date: Fri May 03 2002 - 23:28:04 EDT
Arild:
Do you mean GFCI in front of or behind the isolator. In other words does
the use of a diode only isolator disable GFCI that are located on the boat
or only ones located on the panel at the meter ahead of the boat?
Frank Burrows
At 07:51 PM 5/3/2002 +0000, you wrote:
>The old diode only version also disabled the protective function
>of GFCI's and this was not
>considered a good thing. The addition of the capacitor allows the flow of
>small AC leakage
>currents in the milliamp range. This permits the GFCI to function and
>trip at the 5 ma threshold.
>There are additional requirements such as testing for continuity of the
>green wire in both
>directions which will also change the characteristics compared to the old
>style.
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