Remember, your car has four rubber wheels and is essentially insulated from the ground. When you just step out out the vehicle while touching it, you have completed the circuit.
Generally, above 7.5 KV, the tires last about 30 seconds. The next step following to four loud " POP's " is dark black smoke from your tires and you corpse.
We once had a lineman make unintended contact with 30KVa. He lost track of the lines and hit one with the arm of his aerial lift truck. It was not enough of a short to ground to cause the circuit breakers in the substation to trip, so he rode the lightning until the local utility dropped the power.
By that time he and the truck had completely burned to ash.
Keep in mind, within 4 feet of typical electrical transmission lines, the power can and will jump to the best path to ground.
DO NOT SCREW WITH DOWNED LINES.
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