Lightning protection? You got wire that'll handle 7,000 Amps?


Actually up to a record 200,000 amps has been measured, however it lasts
for only about a millisecond so the wire will not heat appreciably during
that short time.

Most commonly, the lightning current ceases in about a millisecond for a
given stroke, but sometimes there is a continuing current on the order of
100 amps following one or more of the strokes. This is called "hot
lightning" and it is the cause of lightning fires. The continuing current
only lasts for only 0.2 seconds and so a typical ground wire is sufficient.