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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[TowerTalk\]\s+Conductive\s+Concrete\s+and\s+Grounding\s*$/: 26 ]

Total 26 documents matching your query.

21. Re: [TowerTalk] Conductive Concrete and Grounding (score: 1)
Author: "K8RI on Tower Talk" <k8ri-tower@charter.net>
Date: Thu, 27 Jan 2005 12:38:15 -0500
Although lightning is DC (static electricity) is does tend to "ring" with a strike consisting of both positive and negative current flow. Even when flowing in one direction a waveform can contain mul
/archives//html/Towertalk/2005-01/msg01174.html (13,676 bytes)

22. Re: [TowerTalk] Conductive Concrete and Grounding (score: 1)
Author: "K8RI on Tower Talk" <k8ri-tower@charter.net>
Date: Thu, 27 Jan 2005 15:18:33 -0500
Trying to remember my theory... It's been a long time. I hope this makes a little sense. I think of lightning as a poor square wave. It has an fairly abrupt rise time and a bit slower fall time as I
/archives//html/Towertalk/2005-01/msg01176.html (12,445 bytes)

23. Re: [TowerTalk] Conductive Concrete and Grounding (score: 1)
Author: Jim Lux <jimlux@earthlink.net>
Date: Thu, 27 Jan 2005 14:02:40 -0800
At 12:18 PM 1/27/2005, K8RI on Tower Talk wrote: Trying to remember my theory... It's been a long time. I think of lightning as a poor square wave. It has an fairly abrupt rise time and a bit slower
/archives//html/Towertalk/2005-01/msg01177.html (14,252 bytes)

24. RE: [TowerTalk] Conductive Concrete and Grounding (score: 1)
Author: "David Robbins K1TTT" <k1ttt@arrl.net>
Date: Fri, 28 Jan 2005 00:18:36 -0000
And after all that throw in a few more factors. The near fields, both magnetic and electric, can do lots of damage also. The magnetic field can be enough to induce voltages that can flashover power l
/archives//html/Towertalk/2005-01/msg01179.html (17,094 bytes)

25. Re: [TowerTalk] Conductive Concrete and Grounding (score: 1)
Author: "Jim Brown" <jim@audiosystemsgroup.com>
Date: Mon, 31 Jan 2005 11:02:39 -0600
In doing research for my white paper on power and grounding, I learned that you can buy different types of concrete designed for either very high or very low resistivities, depending on your applicat
/archives//html/Towertalk/2005-01/msg01272.html (9,861 bytes)

26. Re: [TowerTalk] Conductive Concrete and Grounding (score: 1)
Author: Jim Lux <jimlux@earthlink.net>
Date: Mon, 31 Jan 2005 10:08:48 -0800
In doing research for my white paper on power and grounding, I learned that you can buy different types of concrete designed for either very high or very low resistivities, depending on your applicat
/archives//html/Towertalk/2005-01/msg01274.html (12,752 bytes)


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