@timselectric
Hi Tim,
First, thank you for your reply. Greatly appreciated. For this shed, and I guess or any building that operates with an AC input
only part of the time, it's almost like having "shore power" in that the AC input occurs only intermittently, as if it were connected with an extension cord. Does that change anything?
In my case, the AC line is literally plugged into an RV outlet box on the side of the building, with the other end of that AC line then plugged into an outlet on the outside of the garage. It really is much like an extension cord in that sense. When that occurs, there is certainly a ground wire connected back to the grid source, at the garage. But what about the rest of the time, when that AC line is just completely disconnected (i.e., no "shore power")? When that happens, which is often, there is no connection back to the garage. My thinking has been that when that is the situation, the Multiplus is making the ground-neutral bond, and that the grounding rod beside the building is serving a useful purpose related to that ground, because it's not connected to another AC "system". In other words, that the grounding rod is serving the same purpose as the grounding rod in any building, as the system wouldn't be connected to another AC ground when no AC line is present. Am I misunderstanding that? If I did not have that grounding rod at the building and the "shore power" AC line isn't plugged in, would things still operate as safely?
Thanks.