What’s the best way to connect a station (desk) ground bus to an outside ground rod?
Is it viable to double-sleeve a copper tube through existing PVC pipe?
For coax pass thru, I have a 1.5” PVC pipe through a cinder-block wall that connects to an outside junction box (entrance box) with steel plate.
I’d like to also connect a ground bus bar on the desk to a grounding-rod in the ground outside. Why not use a copper pipe sleeved through the PVC, and cut a couple of tabs in it? This would gain surface area and minimize the intrusion in the pipe to insert future coax lines.
Or do I need to use:
Braided copper to the steel plate (3/4” or 1”)
Stranded copper to the steel plate (minimum gauge?)