The MIL-HDBK-419A talks a little about this topic. Adding Zn electrodes
to a galvanized tower creates a parallel circuit, not clear which will
go first IMO. Impressed voltage systems are probably a better option.
google it.
I black tar coated my galvanized guy anchor rods and then wrapped them
with 20mil 2" wide PVC tape for abrasion resistance to 2 feet above
grade, same as done for black iron gas pipes that are buried. Should
last longer than me.
Grant KZ1W
On 8/8/2021 16:30, Richard Smith wrote:
Hi Tower Talkers,
It seems that sacrificial zinc is commonly used in boating to stop corrosion. The
sacrificial zinc corrodes and "saves" the metal to which it is attached.
Does anyone in TowerTalk land have experience with using sacrificial zinc with
towers and/or antennas?
73, Rich, N6KT
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