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Total 5 documents matching your query.

1. [TowerTalk] Ledge Lightning Ground Advice (score: 1): Author: "David Merchant" <merchdl@gmail.com>; Date: Sun, 1 May 2016 13:11:01 -0400; Guys, I could use some advice. Late last fall, I erected 40' of Rohn 25G with a Tilt-over base. It sits on top of a ledge that only has about 2-3 feet of rocky topsoil. When I dug the hole for the fo; /archives//html/Towertalk/2016-05/msg00001.html (7,747 bytes)
2. Re: [TowerTalk] Ledge Lightning Ground Advice (score: 1): Author: "Roger (K8RI) on TT" <K8RI-on-TowerTalk@tm.net>; Date: Sun, 1 May 2016 16:38:50 -0400; Some thoughts: Much depends on the rock composition and moisture content. If the soil and rock are primarily dry, the short ground rods probably offer little protection. You could pour a large pad of; /archives//html/Towertalk/2016-05/msg00003.html (12,014 bytes)
3. Re: [TowerTalk] Ledge Lightning Ground Advice (score: 1): Author: Kevin Stover <kevin.stover@mediacombb.net>; Date: Sun, 1 May 2016 19:24:04 -0500; I have seen 10' x 5/8 rods laid flat in trenches 2 or 3 feet deep in situations with shallow rock ledges. Much depends on the rock composition and moisture content. If the soil and rock are primarily; /archives//html/Towertalk/2016-05/msg00004.html (12,773 bytes)
4. Re: [TowerTalk] Ledge Lightning Ground Advice (score: 1): Author: "Roger (K8RI) on TT" <K8RI-on-TowerTalk@tm.net>; Date: Mon, 2 May 2016 15:22:47 -0400; As ground rod diameter makes little difference, I'd think a "interconnected network" of bare #2 copper wire would be much more effective than ground rods laid horizontal. IIRC the NEC recommends larg; /archives//html/Towertalk/2016-05/msg00015.html (14,193 bytes)
5. [TowerTalk] Ledge Lightning Ground Advice (score: 1): Author: "Jim Thomson" <jim.thom@telus.net>; Date: Tue, 3 May 2016 09:14:49 -0700; As ground rod diameter makes little difference, I'd think a "interconnected network" of bare #2 copper wire would be much more effective than ground rods laid horizontal. IIRC the NEC recommends larg; /archives//html/Towertalk/2016-05/msg00017.html (8,953 bytes)

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