Quote:
Originally Posted by flybouy
The picture is the water heater thermostat. "Near lightning " strikes can be just as destructive as a direct hit. A close strike can cause an induced voltage via magnetism (just like windings in a coil) and induce tens of thousands of volts. You could have wires burned where not visible, components burned, etc. It could take some time to chase down all the results of a "near strike".
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The energy of a nondirect lightning strike can be enormous.
We were flying home one night.
A thuder/lightning storm was 20 miles north with clear air between us.
One strike up there, cloud to ground, took out the entire electronic system in the aircraft. Only the magneto's & battery w 1 switch remained.
That's why RV parks & houses w pools must have only 1 ground point.
The crack in the concrete of The OP''s deck likely followed some rebar or wire. & May have gone from there up thru the skin into the electrical systems. Likely going in thru cable connections & outlet grounding
As others have said there may be more damage, tv. Radio, microwave etc.