[TowerTalk] height of ground rod at tower base

[jimlux]

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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