All mine sites have grounded electrical systems, so that in the event of a lightning strike or utility overvoltage or ground fault, the current would be able to find a safe path to earth or the neutral of the transformer.
As I promised in my last column, this "Solid Ground" column deals with transformers and grounding. Let's start by addressing some definitions. Opinions differ on the "official" definition of "distribution" transformer.
Normal earth ground measurement involves disconnecting parallel grounding rods, "planting" several auxiliary grounding stakes, and using a earth ground tester to calculate the resistance of grounding system electrodes. Sometimes, though, there isn't anywhere to plant the grounding stakes - such as inside a building, at a cell phone substation, or on power pylons. What then?