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Old 08 July 2013, 10:23   #1
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lightning protection for RIBs?

Hi does anyone use lightning protection on an open RIB? I guess that a solid plastic coated copper cable could be fed from a high point on the A frame to the water to offer grounding to the surrounding water to deflect the damage but not sure if it woul be effective? what do you think?
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Old 08 July 2013, 10:28   #2
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I just stay off the boat in thunderstorm conditions. We probably get a lot fewer than you do though.

I suspect that it would take some pretty thick cable to deflect damage from a lightning strike, but that's just a guess. High point on the boat will likely be the VHF antenna anyway, wouldn't it?

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Old 08 July 2013, 10:54   #3
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I guess not all areas suffer from rapid and intense lightning sorms but I have heard that most cases of letal strikes at sea take place on small boats...this is what this site says...in the case of an open boat, a good lightning protection system may indeed save a life. The principles are the same as for any boat – air terminals to provide a strike point, external conductors to form a protective cage around the boat, and multiple grounding terminals to disperse the current away from the boat. Overhead conducting fittings such as T-tops and biminis can be life savers when they are integrated into a complete system. Otherwise they are potential sideflash hazards. Science & Technology
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Old 08 July 2013, 11:34   #4
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My A framt bolts through the hull and is the highest point so in theory its grounded to the sea via the thru hull bolts.

dont put copper on your stainless. ;-) check where the bolts go and add a stainless trip if its needs it from a bolt on the afram/transom to further down the transom where it enters the salty.

and yes you may need some hefty wire to disipate a lightening strike.
but a stainless A frame of 2 inch tubing may be able to take a good old hit.
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Old 08 July 2013, 12:29   #5
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all you have to do id stay close to a big sailboat
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Old 09 July 2013, 17:16   #6
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Quote:
Originally Posted by sailit View Post
all you have to do id stay close to a big sailboat
Says the guy with the username "Sailit"...


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Old 09 July 2013, 17:28   #7
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I would have thought that it you have an a frame you could just tap onto that and have something removable so you can connect it when things kick off
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Old 09 July 2013, 17:33   #8
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And hook it up to your battery charger!!!!!!!!
With a fuse, of course.
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Old 09 July 2013, 17:34   #9
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I think you need one of these....

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Old 09 July 2013, 17:36   #10
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What is that?
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