[TowerTalk] Tower grounding

[Jim Smith]

> > I have a Megger. We used it for insulation checks on motors and cable to
> > change them out before a catastrophic failure. Is there a source for
using
> > the Megger for earth ground checks, web or book?
>
> Megger?
>
> If you are reading ground resistances on a megger you are in big
> trouble!

    No, this is one of the tests a megger is specifically made for. I've had
three of them in the past, and they came with instructions for ground
resistance testing.
    I've worked on military contracts that specifically call for testing the
ground resistance with a "Megger".
    I no longer have instructions for this because I now use a ground
resistance tester.

> The NAB (National Assoc of Broadcasters) Handbook has an entire
> chapter on lightning. It is an excellent unbiased discussion, since
> they are not interested in selling anything.

    Sounds like interesting reading for some of us nerds. Is there a
convenient place to find this publication?
    Jim Smith, KQ6UV





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