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Yachts DO get struck by lightning. We met
4 boats in 3 months that were struck, and they lost all electronics
including their GPS systems. If you do get struck (and preventative
systems do not guarantee that you will not be) you should have a
contingency plan for electronics you may lose. Normally this would be a sextant
along with the necessary almanacs etc. You could also carry a handheld
GPS, with plenty of spare batteries, and store it in a protective environment,
(see Faraday cage below). We used to place
all portable electronics in our stainless steel oven when lightning was
around - don't forget when preparing lunch! |
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Information |
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Lightning protection |
Discussion on how and why
to protect your yacht from lightning strikes by the University of
Florida, |
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Power & Motoryacht |
Article on lightning protection |
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Marine Lightning Protection Inc. |
Lots more information here |
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Marine lightning protection |
Understanding lightning protection |
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University of Florida |
A detailed study with diagrams provided
by Ewen Thomsom of the College of engineering, University of Florida |
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Books |
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Lightning books |
Books available for Lightning strikes on boats, causes,
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Lightning protection |
Commercial product System for sailing yachts,
Moerer Schiffselektronik |
A Faraday cage
is a completely closed conducting box. Even if the box is not
"grounded", it is impossible for an electric field to be established
inside the cage so that any electronics item inside the cage is immune
from sparking. Thus the Faraday cage is an excellent place to store
(unplugged) portable equipment items. DO NOT place your cage in a place
where it might form a major pathway for lightning since this WILL cause
electric fields inside it.
(abridged)
Ewen M. Thomson - University of Florida |
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Books on Lightning and yachts |
