Thread: Question on grounding rods
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Old July 10th 07, 08:05 PM posted to rec.radio.amateur.antenna
Jim Lux Jim Lux is offline
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Default Question on grounding rods
wrote:
John Doe wrote:


Isn't concrete an insulator??


"The preferred ground in most jurisdictions is a concrete encased grounding
electrode (aka a Ufer Ground, after the inventor's name Herb Ufer).. "


What am I missing here?


That while dry concrete is a pretty good insulator it is hard to
find such just about anywhere other than Southern Arizona.

And even there, the concrete is probably damper and a better conductor
than the surrounding soil. Ufer's original work was developing
grounding techniques for ammo bunkers in desert areas, since the ground
rods didn't work.

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