8 Jul
1999
8 Jul
'99
1:05 p.m.
On Thu, 8 Jul 1999, Max Eskin wrote:
On Thu, 8 Jul 1999, Dwight Elvey wrote:
Not necessarily; it depends on the conductivity of the ground at the
spot where the lightning strikes. I've seen underground power cables
damaged by lightning that made its way through 1 meter of soil and
concrete. The path of conduction was a beautifully cristalized mess.
Carlos.
Phone lines, and well protected
phone lines at that, are one of the most common sources
of lightning electrocution.
This is only true for overhead lines, and not when they are buried under
the street, correct? Actually, some of the main lines are fiber-optic now,
which shouldn't carry a surge.