[TowerTalk] w7ekb & ground rods

Martin A Flynn maflynn at theflynn.org
Mon Jan 19 17:49:18 EST 2015


Ken,
The AHJ said to drive them at a 45 degree angle.  Failing that, he would 
allow them to be placed in a trench with th bentonite slurry with prior 
approval.

Martin

On 1/18/2015 8:26 PM, Martin A Flynn wrote:
> Ken,
> So far I have not experienced the conditions you ran into.    If I 
> did, I would drive the rod at an angle or bury it in a trench.
>
> I will reach out the gentleman I quoted and see what is position is 
> for situations as you describe.
>
> Martin
>
>
> On 1/18/2015 8:00 PM, Ken wrote:
>> 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 at 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
>



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