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Lightning Sinks Boat with Bonded Through Hulls


The headline reads:

Lightning strikes a boat in Wisconsin and the boat sinks in less than an hour......

On Wednesday, June 8th, 2011 as the sailboat fleets made their way in from the evening races, they were glad to beat the thunderstorm that was coming in from the west. Just at dusk eye witnesses saw a lightning bolt hit a 30 ft ketch swinging on a mooring in McKinley harbor, downtown Milwaukee. " It lit up like a Christmas tree" was how one observer described the event. Within an hour the boat was under water with just portions of the masts showing.

Underwater

This is what the boat looked like an hour after being hit by lightning. Still want to connect ground to your through hulls?
151000-boat-strike-3

Through Hull and Bonding

Notice the wire going to the through hull in the picture below. Also notice the grounding clamp around the through hull where the connection was made.
151000-boat-strike-2

Read More

On Bonding
On Lightning


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