Someone posted this to another list and it is something I have
not noticed nor have considered re. RFI and grid surge
protection.
Is he correct?
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How secure is the #6 solid copper wire that runs down the
side of each
power pole in your neighborhood?
Have you noticed that many of these wires are severed?
This wire on each power pole is designed to locally ground
that wire at
the top of the power pole, called the guard wire. It runs
parallel to the
actual power wires, but the guard wire is uppermost, in
order to guard
the power wires below.
Not all distribution systems use a guard wire, but for those
that do not,
the #6 copper wire that disappears into the ground is
nontheless
necessary as it also maintains a grounded condition
pole-by-pole of
one end of each pole-mounted surge arrestor.
The surge arrestors, scattered along the pole route, are
designed to
shunt to ground any voltage in excess of that normally
present on the
power wires. (Lightning, static, EMP, power station surge,
etc.)
Any EMP event, manmade or natural, will tend to elevate the
voltage
present on the power lines - unless the system's protection
is intact
as designed.
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--
Thanks! & 73, doc, KD4E
FS/Swap/Wanted: http://kd4e.com/swapn.html
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