[TowerTalk] height of ground rod at tower base

[Jeff]

They want to see ground rods.  They look at houses every day and the 
inspector told me he had never looked at a tower before - ever.  Plus the 
tower base is poured 6 weeks ago.  So I need to put in a couple of ground 
rods and just need to know what the typical house install rod height is.

73/jeff/ac0c
www.ac0c.com
alpha-charlie-zero-charlie

-----Original Message----- 
From: jimlux
Sent: Monday, October 23, 2017 10:15 PM
To: towertalk at contesting.com
Subject: Re: [TowerTalk] height of ground rod at tower base

On 10/23/17 7:00 PM, Jeff wrote:
> What does the NEC code (meaning a safety ground and not the more expansive 
> proper lightning dissipation) for minimal grounding of a tower?
>
> I need to get the rural county building inspectors out to look at my 
> towers and want to show them something that they will have seen before 
> with respect to a basic safety ground.  From what I understand locally 
> that means a pair of ground rods in a configuration like what would be 
> required at a house for the mains entry.
>

Today, that means a Ufer ground - 20 ft of conductor embedded in the
concrete. Conductor can be rebar.



> To that end I am unsure what the height of the ground rod should be in the 
> NEC context?  Is the connection wire/rod joint to be made above grade, 
> even with grade or below grade?
>
> 73/jeff/ac0c
> www.ac0c.com
> alpha-charlie-zero-charlie
>
>
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