Grounding
What follows are my thoughts on grounding. There is a lot of misinformation around on grounding. Some of it is just wrong. Some of it is also dangerous. There are also some grey areas where we may not know what to do! In that case we try to error on the side of safety. To fully understand grounding you need to have a knowledge of basic electrical principles. Without going into detail, you absolutely need to know that current flows from a higher potential to a lower potential. There must be a complete path for current to flow. This is easy to visualize with DC and a battery, a little harder with AC and downright difficult with RF. To make up a simple example, if there are two wires supplying current to your house, one black and one white, current is considered to flow from the black or hot wire to the white or neutral wire. There is a “source” where those two wires are connected. Current leaves the source on the black wire and returns to the source on the white wire. That’s the sim...