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From: Norm of Bandersnatch (no email)
Date: Sun May 13 2007 - 12:06:01 EDT
Ahoy All,
I think this is a good thread to pursue.
It seems obvious that it would be best to give lightening a easy path to
ground (or up from ground ) so as to minimize its energy wandering around
your boat doing damage and letting the magic smoke out.
Without the eyebolt, or something like that, the lightening will find a way
to get to the water via other, probably more fragile, paths. We should
facilitate that desire to prevent damage (as in a blown thruhull and a
resultant 1 1/2" stream of water coming into the boat).
What would be the best way? It should be easy, effective, and require
minimal maintenance.
My first thought would be a large carriage bolt, say one inch or larger,
with the head outside, situated more-or-less under the mast(s). I am
partial to 316 but bronze would be good too. The same under where the
shrouds and stays terminate would be good too. Connect with large wires.
Bronze or copper wires would be best I think, but stainless might work
almost as well and be more resistant to corrosion (read: maintenance).
What are your thoughts?
Norm
S/V Bandersnatch
Lying 30 07.715N 081 38.394W
Julington Creek Estuary FL
> [Original Message]
> From: <>
> To: TWL2 <>
> Date: 5/12/2007 9:19:31 PM
> Subject: (T&T: & TWL2:) Re: lv-ab: lighting protection question
>
>
> >
> > From the bottom of the mast at the thru deck step, I plan to wire some
> > copper (#2 wire ) thru the deck to an eye bolt in my bilge.
> >
> Not sure I would want to route this inside. I imagine a hot strike
> could jump to other objects as well as vaporizing the eye bolt and
> creating a nice hole in the hull. We saw some mighty strikes including
> my neighbors house catching fire during my 15 years in FL.
>
> Maine Doug
>
>
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