Electric field distribution in air for various energized and grounded electrode configurations

In this paper, distributions of the electric field and potential in air of two practical cases are presented. The first case is the examination of sphere gaps. The second case is the examination of power line conductors in the vicinity of a tower. Two-dimensional contours of the three-dimensional equipotential and equigradient contours are presented in selected vertical planes. (Gradient here means the potential gradient, i.e., the electric field strength).