You might consider doing what the electric utilities do when they're
working around live wires: sleeve them with rubber. You might see this where a
new power line is being installed above a live circuit that it's crossing, or
where construction equipment like cranes might come into contact with the
I would suggest slitting lengths of rubber garden hose and slipping them
over the DE-ENERGIZED span or spans of electric fence wire below your dipole.
I have no idea what the dielectric breakdown strength of rubber garden hose is
but it's got to be better than having the dipole and fence wires in direct
Of course, I realize you will lose a span or two of electric fence
<dissuasion> where you install the hose. You'll have to decide whether your
cattle or other animals are conditioned thoroughly enough to avoid the fence in
Gene Smar AD3F
-------------- Original message ----------------------
From: Jeff Stevens <firstname.lastname@example.org>
> I'm looking to set up a wire dipole for 40 meters however have an
> interesting problem. We certainly have the space and structures to put
> together some rather large wire antennas. The issue is the electric
> fencing we use to section off various pastures for farm animals.
> I'm not so concerned about the noise from the electric fence but rather
> the possibility of a wire antenna coming down on top of an electrified
> fence. While the fencing runs only a few mA, referenced to earth ground
> it runs about 5000V. If a wire antenna were to contact the electrified
> fence, I think the transceiver would be quite unhappy. It doesn't
> matter where an antenna is located on our lot; If it's of any size and
> it comes down it *will* likely contact the electric fence. Disabling
> the electric fence isn't an option either.
> So, what am I to do? Is there any hope? Are there any lightning
> protection products that might be appropriate?
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