Hi, Pete;
Don't worry about the 100,000 amp strike. The average lightning stroke
is 18,000 amp and lasts for something like a microsecond. The killer
strikes, the 10% capable of lots of damage, have a continuing current of
100-200 amp between strokes that is not present in most strikes. I
don't recall the maximum duration of those. Look for "All About
Lightning," Martin A. Uman, 1971; Dover Publications, Inc. For a more
technical book, read "Lightning," Martin A. Uman, 1969, Dover
Publications. These books should be available from a nearby library,
perhaps on interlibrary loan.
73 de WOØW
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