[RFI] Station ground - more

[Roger (K8RI)]

I think we're caught in semantics and interpretations. Jim (K9YC) has 
the correct interpretation, BUT as he says, it' the GROUNDS that are all 
tied together.
I believe Panels and sub panels are grounded ONLY at the main panel. Sub 
panels have their grounds run to the main panel which is the only ground 
for the panels

73

Roger (K8RI)


On 9/28/2016 Wednesday 12:37 PM, Kenneth G. Gordon wrote:
> For instance, when I was wiring our new addition, the wiring included a sub-panel,
> connected to the main panel by a run of #00 4 wire cable. With the assistance of our
> youngest son, we drove an 8' ground rod directly under the sub-panel with the thought that I
> had to connect that to the sub-panel's ground lug.
>
> Yet I was told by the electrical inspector that this was NOT allowed, but that we had to run a
> separate ground wire from the sub-panel at least 30 feet to the main-panel's ground lug and
> connect them together there.
>
> I was also told that the ground-rods we drove (3 ea 8 footers, separated by at least 6 feet
> and all tied together) must be the ONLY such ground system in the entire home, and that
> every grounded item in the entire home must be connected to that and only to that.
>
> So, why the apparent discrepancy?
>
> For one thing, I suspect that the ~30' long ground wire from the sub-panel to the main panel
> is conducting RF, especially on 40 meters, into some of the electrical appliances in the new
> addition. I also believe that the present ground system in the shack is not adequate, since at
> present it is only being connected to the panel-ground through the green grounding wires of
> the electrical service.
>
> Ken W7EKB
>
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