the one thing that many people forget is that it is not just the impedance, its
the distance. The size of a typical shack, house, and grounding system, is NOT
small with respect to the wavelengths in play with significant energy, so you
can't use a simplified impedance to model the protection. You must take into
account the rise time vs distance between connections and understand that just
because you have a ground wire connecting two things they can be at
significantly different voltages during a lightning stroke.
Sep 18, 2012 10:47:14 AM, svetanoff@earthlink.net wrote:
>Since all of the station equipment is tied (bonded) to
>the one ground system (or should be), the lower the net Z to ground means
>the less voltage developed differentially between grounded connections and
>power feeds, antenna inputs, and so forth. ness of that approach.
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