D-C Arc Interruption for Aircraft

This paper has presented quantitative information obtained on various direct voltages. It should be cautioned that the maximum interrupted currents given here should not be taken as the rating of a device. The actual rating is a certain fraction of the maximum and is dependent on factors such as factor of safety desired, tip life expectany, maximum arcing time allowable, and so forth. Based on data obtained sofar, the arc-interruption problem at higher direct voltages appears quite feasible. Possible system voltages are three wire, 250 volt, or even 600 volt as far as arc interruption is concerned.