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1. [TowerTalk] Ufer gnds/foundations (score: 1): Author: Jim Jarvis <jimjarvis@optonline.net>; Date: Fri, 14 Sep 2007 09:49:13 -0400; I'm not a student of Ufer grounds. However, I HAVE engineered some large towers...including a 500' self supporter. Everyting I've read says...provide a low impedance path AROUND the foundation, not t; /archives//html/Towertalk/2007-09/msg00479.html (7,438 bytes)
2. Re: [TowerTalk] Ufer gnds/foundations (score: 1): Author: "Jim Brown" <jim@audiosystemsgroup.com>; Date: Fri, 14 Sep 2007 07:06:28 -0700; Yes. If you study the literature on Ufer grounds, you'll see exactly this comment -- that care must be taken to insure that a lightning discharge through a Ufer ground does not compromise structural; /archives//html/Towertalk/2007-09/msg00482.html (8,204 bytes)
3. Re: [TowerTalk] Ufer gnds/foundations (score: 1): Author: "W7CE" <w7ce@curtiss.net>; Date: Fri, 14 Sep 2007 07:13:35 -0700; I'm certainly no expert either. That's why I'm asking the questions. My research pointed to Ufer grounds for towers as a good solution. Ufer proponets claim that exploding concrete is a myth. I got; /archives//html/Towertalk/2007-09/msg00484.html (8,922 bytes)
4. Re: [TowerTalk] Ufer gnds/foundations (score: 1): Author: Jim Lux <jimlux@earthlink.net>; Date: Fri, 14 Sep 2007 07:49:08 -0700; Where's that million amps coming from? Even really big lightning strokes don't get into that kind of range. I've seen 8" copper strap, 1/16" thick Not that I question the copper disappearing, but som; /archives//html/Towertalk/2007-09/msg00487.html (10,390 bytes)
5. Re: [TowerTalk] Ufer gnds/foundations (score: 1): Author: Jim Lux <jimlux@earthlink.net>; Date: Fri, 14 Sep 2007 08:04:07 -0700; The advantage of the Ufer ground is that it makes your ground electrode very large in surface area. Therefore it has low inductance (good for impulses), large C to the surrounding earth (good for imp; /archives//html/Towertalk/2007-09/msg00488.html (9,569 bytes)
6. Re: [TowerTalk] Ufer gnds/foundations (score: 1): Author: "Gary Schafer" <garyschafer@comcast.net>; Date: Fri, 14 Sep 2007 17:35:47 -0500; Note that the reference, while they do make mention of lightning, is only dealing with DC and 60 Hz power ground systems. Deep ground rods can have good results at power line frequencies but as a li; /archives//html/Towertalk/2007-09/msg00510.html (8,788 bytes)

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