The effects of lightning are
those of a high-strength impulse current that propagates initially in a gaseous
environment (the atmosphere), and then in a solid, more or less conductive
medium
These effects are linked to
the amount of charge associated with lightning strikes. They result in fusion
points melting holes of varying sizes at the point of impact of materials with
high resistivity. For material which is a poor conductor, a large amount of
energy is released in the form of heat. The heating of water vapour contained
in the material results in very high abrupt localized pressure which may cause
it to explode.
