Characteristic parameters of the anode spot

In most of the works, the anode spot has been shown to be present whenever an electric arc occurs in the wake of an operating contactor, causing a slight contraction of the arc column. The role played by the anode is that of an electron collector, and it has now been acknowledged that the metal surface subjected to electron bombardment is unique with circular shape. Starting from these hypotheses and using the law of conservation at the level of the anode spot area, a theoretical model was set up enabling the following parameters to be started for currents of average intensity (