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@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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