Air Model for the Study of Electrostatic Induction by Transmission Lines

A scale model of an extra-high-voltage transmission line (735 kV) has been developed for the study of electrostatic induction in objects such as trucks, trailers, and lighting towers which are in the vicinity of the line. The model is operated in air at high frequencies. The method, including the factors which affect accuracy, is described. Special attention is given to the electrostatically induced steady-state currents. The results are comparable to those obtained in the electrolytic tank and to those recorded on the actual line.