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Lee Huddleston

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Steel hull - electrical ground

On 10 Oct 2003 07:54:37 -0700, (Jim Woodward)
wrote:

That was the Royal Navy's choice when they specified Fintry thirty
years ago and we will continue this with her new electrical system.
The only electrical connections to the hull will be green safety
ground and radio ground for the SSB (which is isolated from electrical
ground).

We will have ground fault alarms on both the DC and the AC systems so
that if either gets shorted to the hull we'll know about it early.
Shore power will come aboard through isolation transformers.

Jim Woodward

Jim,

Would you have a recommendation for an isolation transformer? The
only one that I have found so far ate up a lot of the power before it
could get into the boat. That seemed strange to me, but maybe I was
reading the specs incorrectly. Also the price seemed to be very high.
Of course, protecting my beloved boat from galvanic corrosion is
probably worth a lot if that is what is necessary.

By the way, you mentioned DC and AC ground fault alarms. Who makes
them and are they available to private individuals?

Thanks in advance for your help.

Lee

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