Tests with arcing grounds and connections

It has long been known that when an arcing ground occurs in a system, abnormal voltages and consequent failure of apparatus often result. This series of tests was started with the hope of being able to deduce some mathematical expression which would represent these phenomena with reasonable accuracy. The mathematical expression did not materialize, but in view of the importance of the subject, and believing that the results will prove of some interest and value, I give them in the following paper. The theoretical explanation might form the subject of a future paper.