[TowerTalk] tower leg ground

[Jim McDonald]

I used 3/4" model 377A Z-Rung assemblies from ICE
http://www.iceradioproducts.com/ .  They are two-part aluminum blocks that
fit snug around a tower cross bracing, not a leg, (I have a US Tower
HDX-589) with a hole for a #4 wire and a screw in a threaded hole to attach
the grounding wire.  ICE had several sizes in aluminum and brass but I don't
see them on their current web site.

They also sell tower leg mounting fixtures mount between two legs and have
mounting holes for their assemblies.

Jim N7US
 
 

-----Original Message-----


On 01/14/08 04:37 pm towertalk at longwire.com wrote:

> What would be the preferred method to attach #4 copper to the leg of a
tower?


The "home improvement" stores sell bronze grounding clamps in various 
sizes to fit pipe/tube at least 2 in. in diameter and with holes that 
will easily accommodate #4 wire. BUT it's advisable to separate the 
bronze clamp from the tower leg (presumably galvanized) by a layer of 
stainless steel to minimize the galvanic (corrosive) action: I use 
sections of stainless steel hose clamps. I also replace the standard 
screws by stainless steel ones.

Here is one such:

http://www.lowes.com/lowes/lkn?action=productDetail&productId=72271-15527-41
311&lpage=none

73

Alan NV8A