Tower grounding.***readme***

[Bill Hider]

Gene Smith wrote:
> 
> Fellow reflector members:
> 
> I know that a tower mounted ON, not in/through a
> concrete base needs a grounding cable.  But in
> the case where the tower, Rohn HDBX-48 in my
> case, will be mounted onto metal stubs (BXB-8)
> that go through the concrete and are touching
> the ground underneath, is it still necessary
> for an additional grounding cable?
> 
> I've got a feeling that there are some codes
> governing this but I just don't know where to
> turn to get them.  The Rohn manual for the
> HDBX-48 doesn't specify anything in the way of
> grounding.
> 
> Thanks in advance for advice!
> 
> Gene
> WD8OZL
> 
>

Please buy and READ the relevant standards for this subject before you
make assumptions.  This thread has been on this reflector many, many
times.  That standard is:

ANSI/TIA/EIA-222-F, June 1996, Structural Standards for Steel Antenna
Towers and Antenna Supporting Structures.

This document is available from Global Engineering Documents,
1-800-854-7179, for about $95 shipped FEDEX to you.

It is THE standard that answers your questions and should be on the book
shelf and read by anyone owning a tower.  In fact, many counties require
PE stamping of drawings that state they meet this specification.

BTW, the "exploding tower base" was declared mythical last year.

All towers must be grounded per ANSI/TIA/EIA-222-F.

It is very educational book of approximately 114 pages.

73!
Bill, N3RR

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