On Wed, 23 Apr 1997 20:20:00 -0400 (EDT) Frank Donovan
<donovanf@sgate.com> writes:
>As a matter of interest to Towertalkians, the new version of
>EIA/TIA-222
>specifies that copper wire SHALL NOT be used for ground wires, ground
>rods
>or ground clamps. All new towers installed under EIA/TIA-222
>specifications must use galvanized ground rods, galvanized steel wire
>(ie
>guy wire!) for grounding conductors, and galvanized connectors or
>exothermically welded connections. Tinned copper wire may be
>substituted
>for galvanized steel wire when the conductor must be buried. Bare
>copper
>is no longer allowed in any grounding application, either at the tower
>base or at the guy anchors.
>
>This change came about as a result of research that demonstrated that
>copper ground rods in proximity to tower foundations and steel guy
>anchors
>tended to accelerate the corrosion of the steel members, leading to
>sudden
>catastrophic failure!
>
>73
>Frank
>W3LPL
>donovanf@sgate.com
>
>
>--
>FAQ on WWW: http://www.contesting.com/towertalkfaq.html
>Submissions: towertalk@contesting.com
>Administrative requests: towertalk-REQUEST@contesting.com
>Problems: owner-towertalk@contesting.com
>
How many millions of ground rods (the 8 ft commercial
kind are in the ground now......one are every cable TV
junction box (for example).... I have three new ones
(never used for spares)... However looking at mos
commercial installations.. the one I have seen are in
compliance with the aforementioned code......
We remember there are grounds for lightening and grounds
for signal reflection... one could carry on with the engineering
talk to the end of time etc.......Is the COMMON GROUND
the best for all occasions????????????
Nate..........
PS: My tower goes straifht into the earth... if it rots
OLE WELL... (it will outlast me.. or at least my dessire to use it)
--
FAQ on WWW: http://www.contesting.com/towertalkfaq.html
Submissions: towertalk@contesting.com
Administrative requests: towertalk-REQUEST@contesting.com
Problems: owner-towertalk@contesting.com
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