And, as has been pointed out on several occasions, it is
critical that other
lines (telco, antennas, etc.)that can bring lightning into
the house be
bonde and/or protected AT THE SAME POINT as the power line.
Tom Rauch has
pounded on this for quite a while, and he is right on.
That's often a lot
more difficult in some installations, but it's the right way
to do it.>>>
That's right. Placing a MOV across the service entrance and
thinking it makes a substantial difference in protection is
largely just a dream.
It is the voltage difference between things like antenna
cables, telephone lines, plumbing, and power lines that
mostly causes lightning damage.
Nearly all of the solution is bonding and grounding
everything entering the building to ONE common point. This
helps keep damaging currents outside the house because every
group or bundle of conductors entering the house will do so
at nearly the same potential.
In general "protecting" a line by clamping between
conductors on the line generally does very little to reduce
chances of lightning damage.
73 Tom
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Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
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