[TowerTalk] Mot R36 related to NUMBER of installed ground rods

[R.Morris]

I think R56 says one 8’ rod per 16’ out to height of tower.

Sent from my iPhone

> On Nov 3, 2017, at 09:43, Steve Bookout <steve at nr4m.com> wrote:
> 
> Jeff,
> 
> You install ground rods until either your back hurts, your wallet hurts, or both.
> 
> I have six 'strings' of four rods each for a total of 24 rods per tower.  Installed them 16 feet apart, in a one foot wide trench so I would never trip over them.  All are cadwelded with #4 stranded copper and attached to tower legs with stainless steel shim stock and stainless steel hardware.
> 
> I am comfortable with this installation.
> 
> 73 de Steve, NR4M
> 
>> On 11/3/2017 1:10:AM, Jeff wrote:
>> I’m laying out the ground rod scheme for the towers.
>> 
>> As I look at Mot R56, it seems like about 45’ of rods gets you to the 5 ohm target based on one of the graphics they provide  That’s about 9 ground rods spread out in 3 legs each with 3 rods separated by 16’ assuming 8’ rods and average soil.
>> 
>> While I realize more is better, how do you determine “enough” in the context of ground rod count?
>> 
>> 73/jeff/ac0c
>> www.ac0c.com
>> alpha-charlie-zero-charlie
>> 
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