I had the same situation here, a thick hardpan layer 3 feet down. I drove
several rods in horizontally just above the hardpan layer. The inspector
passed it. I also tied the major rebars into it.-Mike-
From: Ken <wa8jxm@gmail.com>
To: maflynn@theflynn.org
Cc: towertalk@contesting.com
Sent: Sunday, January 18, 2015 5:00 PM
Subject: Re: [TowerTalk] w7ekb & ground rods
If I may ask, what’s the “appropriate tool” when you have a rock layer 40”
down? i tried a hammer drill, waste of time. I rented an SDS-MAX hammer and I
got one in all the way, four others only made it most of the way. So what is
the recommendation?
Ken WA8JXM
> On Jan 18, 2015, at 7:46 PM, Martin A Flynn <maflynn@theflynn.org> wrote:
>
> Ran this past one of the code enforcement guys in the county. Surprising
> response:
>
> "We make you buy a UL listed panel board and breakers - what makes you think
> you can build a grounding system that is equal to UL *and* be able to prove
> it in court if there is a problem? Buy the listed rod(s) and drive them with
> the appropriate tool"
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