I completely get the induced current
in all nearby conductors. A high di/dt will induce large coupled currents. A large, very inefficient, air-core transformer just as Andina described. The inefficiency is irrelevant due to the levels involved. That's not what I'm talking about. I agree, I don't think electronics
or electricals can be protected. I'm concerned with physical damage to the boat's hull
due to a primary strike to the mast
. With no connection to ground (aka the water), won't the energy simply find it's own path through the hull
. Or perhaps even with a ground plate, the energy involved will simply blow holes where the connections to the plate are located. Just trying to give my boat the best odds of staying afloat if struck.