Discussion “on a new equation for the static characteristic of the normal electric arc”

W. N. Eddy: As a supplement to his detailed analysis of the voltage-length-current characteristics of short arcs Mr. Nottingham might be interested in the results of some arc tests that were published in 1922.
¹
These tests were made with the idea of (1) trying out Dr. Steinmetz' equation at longer arc lengths than used by him in 1906 and (2) finding the effect on his equation of different pressures on the arc stream.