It was written, regarding UFER grounds: "Sinking the ground rod several inches below the bottom of the foundation hole and only running copper wire out the bottom of the concrete is no problem. If ho
So are you saying that you don't believe in Ufer grounds? If I understand them correctly, the whole point is to develop a low impedance path to ground through the concrete. _________________________
I don't think so. Fusing current on a typical solid UFER ground wire is pretty high. When doing exploding wire experiments 10 years or so ago, I recall it takes on the order of tens of kiloJoules to
The chart from Jim is good to keep in mind when considering employing your verticals radial system as part of your lightning ground system. I see many worry that they should use large wire for the ra