Grounding tower legs

[Bill Hider]

gpalfe@pclink.com wrote:
> 
> I just finished erecting a Rohn SSV tower.  Rohn supplied the tower with 2
> large ground rods and some bare solid copper wire, number 10 size.  I know
> this is not the recommended wire size to properly ground the tower.
> 
> Does anyone know the recommended wire type and size to ground the 3 legs?
> 
> Thanks, Greg, wa0bnx
> 
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According to ANSI/TIA/EIA-222-F, March 29, 1996, The minimum ground is
two 5/8 inch diameter galvanized steel ground rods driven not less than
8 ft into the ground, 180 degrees apart, bonded with a lead of not
smaller than No.6 tinned bare copper connected to the nearest leg or
metal base of the tower.

Additionally, self-supporting towers exceeding 5 feet in base width
shall have one ground rod per leg installed as above.

There are additional grounding requirements for "equipment" on the
tower.  I emphatically suggest tower novices obtain and study this
specification which is available from Global Engineering Documents @
1-800-854-7179 or 303-397-7956.  This document is not free.

I have no relationship with EIA, TIA, ANSI, Global Engineering
Documents, etc.

73!
Bill, N3RR

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FAQ on WWW:               http://www.contesting.com/towertalkfaq.html
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Sponsored by Akorn Access, Inc & KM9P