[TowerTalk] Grounding connection to tower legs
Jim Thomson
jim.thom at telus.net
Sun Oct 15 12:06:51 EDT 2017
Date: Thu, 12 Oct 2017 19:41:54 -0500
From: "Jeff Blaine" <jeff at ac0c.com>
To: <towertalk at contesting.com>
Subject: [TowerTalk] Grounding connection to tower legs
<What?s the best way to connect the copper wire/strap to the 55G tower leg?
I?m planning to clean the galvanized leg, wrap the leg with a layer of 0.005? SS shim stock and then use a couple of SS hose clamps to hold the wire against the tower leg.
Is that the right way to do the attachment?
Should I use any copper paste as well?
73/jeff/ac0c
www.ac0c.com
alpha-charlie-zero-charlie
## What does Rohn have in its catalog ?? They must have the correct compression assy for 55-G legs. I used 2 gauge stranded copper wire, insulated, like RW-90.
One end to cadwelded ground rod, with cadweld and top of ground rod a few inched below the ground. Other end goes to compression lug fitting. Correct die used to compress
the lug onto the 2 gauge stranded cu. Hole in compression lug bolted to tower base. But that part depends on what type of tower it is. For something like 55-G legs, it should
consist of a 2 x piece clamshell with a big enough flange to handle the mating compression lug assy. Use thin layer of penetrox goop on the leg, and where the mating flange +
compression fitting bolt together. SS + cu is bad news. So is SS and galvanized surfaces.
Jim VE7RF
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