Jeff.....for what its worth, we cad weld cables on to Ductile Iron water
pipe here for sacraficial anode, and impressed current cathodic protection
systems all the time, and they do not get coated. Sometimes if we've ground
away too much of the mastic on the pipe for a clean surface to weld to, we
may brush it lightly with mastic to stop the rust, but the cad welds do not
get coated or protected....there is no need.
Derek VE7RE
----- Original Message -----
From: "Jeffrey Okamitsu" <w3kl@w3kl.com>
To: <towertalk@contesting.com>; <pvrc@mailman.qth.net>
Sent: Wednesday, November 28, 2007 9:48 AM
Subject: [TowerTalk] CADWELD Question
> Should one weatherproof (i.e., tape) cadweld
> connections (Cu to Cu) that will be buried?
>
> I personally think it's a waste of time and material,
> but if someone can explain why it's necessary (that
> is, a good cadweld connection will have a lifetime
> less than that of a Cu ground rod embedded in the same
> soil type unless it is weather proofed...and how,
> physically, that could happen), I could be pursuaded
> otherwise.
>
> 73, and thanks for reading.
>
> Jeff
>
>
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