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Re: [TowerTalk] Ufer ground using copper wire

To: "Jim Lux" <jimlux@earthlink.net>, "W7CE" <w7ce@curtiss.net>
Subject: Re: [TowerTalk] Ufer ground using copper wire
From: "Russell Hill" <rustyhill@earthlink.net>
Date: Fri, 14 Sep 2007 10:46:05 -0500
List-post: <mailto:towertalk@contesting.com>
So are you saying that the concrete base with the tower legs embedded in it 
is already a good ground for the tower itself?  (Not asking about the leads, 
etc.)

Thanks,
Rusty, na5tr


----- Original Message ----- 
From: "Jim Lux" <jimlux@earthlink.net>
To: "W7CE" <w7ce@curtiss.net>
Cc: <towertalk@contesting.com>
Sent: Thursday, September 13, 2007 6:46 PM
Subject: Re: [TowerTalk] Ufer ground using copper wire


> W7CE wrote:
>> I'm planning on an Ufer ground in my new tower base.  I've seen several
>> sites recommending 20' or more of #2 or larger copper wire wrapped around
>> the outside of the rebar cage.  Are there any chemical reactions that 
>> make
>> using copper a bad idea?  I seem to recall reading something about that a
>> while back, but now I can't find any mention of it.
>
> That works fine..
>
>>
>> If copper is ok, I'm thinking about putting a pounding a copper ground 
>> rod
>> into the bottom of the foundation hole.
>
> ooohhh bad idea.. don't want metal penetrating the concrete below the
> soil surface, if you can avoid it.  (water infiltration along the tiny
> gap between metal and concrete)
>
> Besides, the many square feet of concrete will have a lower resistance
> to the earth than any single ground rod will.
>
>
> Just embed the wire in the concrete and bring it out the top of the pad.
>
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