[TowerTalk] Tower Grounding Spec (ANSI/EIA/TIA-222-F Jun 96)

[Del Seay]

John D. Peters wrote:
> 
> >
> > > Thanks Frank.
> > >
> > > I presume that this change is only of interest to those with GUYED
> > > towers?  I can see no reason to change from #4 solid copper wire, or
> > > copper strap to copper clad steel ground rods if the tower is self
> > > supporting.
> > >
> > > The legs of my tower are certainly not corroding away to "pencil"
> > > diameter.
> > >
> > > Is there some other consideration that might apply to self supporting
> > > towers?
> > >
> > > 73 John K1ER
> > > Problems:                 owner-towertalk@contesting.com
> >
> > ANSI/EIA/TIA-222-F  applies to ALL steel towers, guyed or self
> > supported. The issue is bi-metallic corrosion, not how thick the tower
> > legs are.
> >
> >
> > Always use what the experts recommend.  In this case its the American
> > National Standards Institute, the Electronic Industries Association and
> > the Telecommunications Industry Association.  Why someone would try to
> > make assumptions and rationalizations which would put them and their
> > installation at odds with these experts is beyond me...
> >
> > Bill, N3RR
> >
> > --
> 
> During my 31+ years in the Navy, most of it in nuclear submarines, I've
> certainly seen my share of bimetallic corrosion.  However, when the steel
> tower is above ground on a 40 ton concrete pad, and there is no corrosion
> at the point where the copper is clamped to the steel, and no corrosion
> on copper clad, steel 8 ft ground rods pulled up for inspection, and no
> corrosion on the self supporting steel tower. (Yes it's easy to tilt and
> check inside the legs.)
> 
> It appears to me much ado about nothing.

Okay - but what about the cage that is not visible? It's just as
important a part of the tower as that above the pad.
de KL7HF

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