[TowerTalk] Grounding HDX-555

[EZ Rhino]

I wonder why no one has come up with a clamp that uses a bolt that tightens a spring, so there is constant tension on the clamp, just like exhaust manifold to collector pipe bolts?  Guess I need to get to work on that...

Chris
KF7P







On May 5, 2013, at 13:11 , Gene Smar wrote:

Patrick:

   I would not bury a mechanical ground clamp.  It can't easily be checked and retightened each year.  I would use a longer ground rod and leave six inches or so above ground and apply the clamp there.  A welded connection such as Cadweld can be buried and forgotten.  My 132 feet or so of #2 solid ground wire is attached to 12 copper ground rods with that method.


73 de
Gene Smar  AD3F


----- Original Message ----- From: "Patrick Greenlee" <patrick_g at windstream.net>
To: <TOWERTALK at contesting.com>
Sent: Sunday, May 05, 2013 2:59 PM
Subject: Re: [TowerTalk] Grounding HDX-555


> While on the grounding topic... why do some sources recommend burying the wire clamp to copper ground rod connection a minimum of 6 inches?
> 
> Patrick AF5CK
> 
> -----Original Message----- From: Alan NV8A
> Sent: Sunday, May 05, 2013 1:39 PM
> To: TOWERTALK at contesting.com
> Cc: Brad Hyde
> Subject: Re: [TowerTalk] Grounding HDX-555
> 
> On 05/05/13 12:19 pm, Brad Hyde wrote:
> 
>> I am in the process of erecting an HDX-555.  I have the hole dug and most of the rebar cage built.  My question is about the best method of grounding.  Should I place a copper cable at the bottom of the hole and then attach it to the tower?  This method would have the cable immersed in the concrete which makes me wonder about that much heat going into the concrete if lightning hits, even if it is just on the edge of the concrete.  The other method I am thinking of would be three ground rods placed around the tower and connected together and to the tower with copper strap and/or very heavy copper wire.  Just looking for input from the collective knowledge of this group as I am in a lightning prone area in west Texas.  Thanks.
> 
> I have #4 copper connected to each leg of my HDX-555 (with
> stainless-steel shims as separators to avoid corrosion), and each
> running to an 8ft. copper-clad ground rod about 10ft. away.
> 
> 73
> 
> Alan NV8A
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