[TowerTalk] Fwd: Tower base/Ufer ground

Jim Lux jimlux at earthlink.net
Sat May 17 23:27:06 EDT 2014


On 5/17/14, 6:11 PM, Drax Felton wrote:
> What is the conductance per inch of concrete in mho's ?
>
>
http://www.k1ttt.net/technote/concrete.html
10-50 mS/m


>
>> On May 17, 2014, at 8:54 PM, Hans Hammarquist via TowerTalk <towertalk at contesting.com> wrote:
>>
>> The steel culvert in itself constitute a rather massive ground stake. The concrete is conductive so, yes, you can say you have a Ufer ground. With that very wet (high water table) land I can only assume you have a good ground.
>>
>>
>> Hans - N2JFS
>>
>>
>>
>> -----Original Message-----
>> From: Mike Reublin NF4L <nf4l at comcast.net>
>> To: towertalk reflector <towertalk at contesting.com>
>> Sent: Fri, May 16, 2014 8:39 am
>> Subject: [TowerTalk] Tower base/Ufer ground
>>
>>
>> I have a proposal from a contractor to pour the concrete into  a piece of 48"
>> diameter x 12' long piece of steel culvert capped on the bottom end with a
>> plywood disc. Very high ground water is the reason.
>>
>> Will this constitute a Ufer ground?
>>
>> 73, Mike NF4L
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