Commercial tower grounds are almost always cad-welded, but usually to
the heavy base flange(s), or to heavy tabs already welded to the tower
expressly for the purpose of grounding.
I've seen some cad-welds on *solid* legs, but I can't recall any on pipe
legs.
-Steve K8LX
On 10/16/2017 8:26 AM, Ward Silver wrote:
I also got a question about CadWeld and those are great for ground
electrodes but I would never use them on the tower itself. It may be
possible to safely weld a connection to a tower but I wouldn't do it to a
tubular load-bearing leg, not to mention the dissimilar metals involved and
all that. I wouldn't want to weaken a cross-brace either, especially when
there are other options designed for that exact application. Maybe someone
with broadcast tower experience could weigh in on that. I repeat, for us
hams, just buy the right stuff and and do what the manufacturer says.
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