That is a sore point with one central service and several out buildings with their own distribution panels. It becomes a problem with live stock in particular. Something raising the ground system above true earth in one building. Can cause tingle voltage in the same or another building. Even neighbour's buildings. Anything that gets a ground and a neutral in a parallel path and the ground carrying neutral current is trouble. With one central service and distribution panels in the outbuildings. At one time they required the ground and neutral bars be bonded together in the outbuildings and at the central service. This led to good intentions but bad voltages on anything "grouned". The solution and a good one IF.......... each building has a very good grounding system. BUT.......few do. Is to back off the bonding screw at each remote panel between the neutral and ground bars. Now the neutrals can float up 0.1 to 10.0V above true earth potential. Without dragging the grounding system up with them. The final approved solution around here is to pound ground rods and/or bury ground plates until there is a proven good grounding system. The bond screw is not replaced between the out buildings neutral and ground bars. A magnetic reactor called a tingle voltage filter is connected between the neutral bar and the ground system. The neutral still floats unless there is a serious fault which brings the neutral above 10V above true earth. Then the tingle voltage filter starts to conduct and "clamps down" the errant neutral to "earth".
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Today's Featured Article - The 8N and the Fox - by Zane Sherman. Dec. 13 1998, Renfroe, Alabama. Last niht I dreamed about the day that I plowed the field of about 10 acres over on what Jimmy and Dandy called the Ledbetter field. I was driving the 1948 8N Ford tractor that Jimmy bought in 48 new This was prebably in about 1951 and maybe even befor the house was built. This would have made me to be about16 years old and I drove the tractor for nothing and would have paid to drive it if I had had any money which I didn't, but neit
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