One more alternative is to use a DX Eng saddle clamp and extend the
saddle backing plate far enough to use two hole lugs. I made the
backing plate out of 1/4 x 1-1/2" 6061 and wide enough for two lugs each
side. One clamp on each leg with 2 or 3 #6 or #2 wires to pairs of
buried 8' rods Cadwelded. I put some contact goop in the saddle area
where it contacts the tower. 2" saddles for Rohn 65 are a very close
fit. A few dollars cheaper than the Rohn similar idea, and uses two
hole lugs. Aluminum against zinc is pretty benign electrochemically.
Grant KZ1W
On 10/16/2017 11:58 AM, Jim Brown wrote:
On 10/15/2017 7:35 PM, Ward Silver wrote:
Use a proper clamp designed to connect copper wire to galvanized
tower legs. For Rohn 25, the clamp is part number R/CPC-1.25
Here are two sources with what seem to be the best prices. If you poke
deeper, you learn that the two links are simply different DBAs for the
same business. :) $30 each.
https://www.cableandwireshop.com/rohn-tower-grounding.html
https://www.3starinc.com/rohn_r-cpc11_25_tower_base_ground_clamp.html
I just ordered clamps to replace the stainless steel hose clamps that
I'm currently using. The website let me place an order without adding
yet another password. :)
73, Jim K9YC
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