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Old 09-23-2014, 08:47 PM   #41
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If I were going to put lightening protection on a mast that was stepped through the cabin...I would bond the points where the stays attached to the hull outside and run those straps down to a bronze sintered plate....actually if I was in the midst of a bad lightening storm with bolts hitting close by...I'd clamp a couple jumper cables to the stays and let them dangle in the water.

Anything to keep a spike from entering the cabin then heading for sea water. 2 bad things could happen with lightning in the cabin...where it hit people and where it tried to exit the boat.
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Old 09-24-2014, 06:18 AM   #42
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I'd clamp a couple jumper cables to the stays and let them dangle in the water.

Better to bolt a heavy cable with a 2x2 or bigger copper sheet for overboard.

Not much area in cable clamps , and poor ampacity with steel clamps with a thin copper plating.
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Old 09-24-2014, 06:45 AM   #43
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Yes.... but all you are doing is looking to "cause" a path for lightning ...a path of least resistance.....not actually carry it because that is almost impossible.

Some people have reported success with just shackling on lengths of galvanized chin.
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