Lightning protection for Boats

The first link is easiest to read and understand.

The first may be easier to read but it has some errors. The first to catch my eye was car spark plugs using 15 to 200V! with a gap of 20 thou" or 0.5mm it needs 1500V to jump the gap with much more being generated to afford a reliable spark.

I'd stick with the NFPA reccomendations. A/ they're the ones that count B/ the've been thought out very carefully and proof read.

Thanks for the link, that has gone into my "standards and ref data" file.

regards

Chas

I would put as much importance on the weather warning system as on the lightning protection system. A failure in the former will not necessarily be dangerous. A failure on the latter may be. Stay safe, Enjoy the boat.

A couple years ago, The Univ of Mississippi was doing some research about lightening with ship models, I looked but couldn't find reference.

Thank you for your comment and the links.

Please follow the link below to access the 2008 version of the NFPA 780 standard. You can view the standard for free with just a registration. See the bottom of the page for "View the 2008 Edition" There are several significant re-writes compared to the 2004 version.

http://www.nfpa.org/aboutthecodes/AboutTheCodes.asp?DocNum=780

wishing you success!