Calculation of the 凢ield Intensification Factors. using Method of Moments for Lightning Protection

摘要

This paper presents a fast and efficient way to calculate the ‘field intensification factors’ which can be used to assess the effectiveness of lightning rods for the protection of structures or to determine the likely lightning attachment points such as the corners and edges of structures and lightning rods. The approach allows for the three-dimensional calculation of the electric field around structures of complex shapes, represented by metallic plates and cylindrical conductor elements.Examples are given for various shapes and dimensions of typical structures, including lightning rods and composite structures. The effect on the field intensification factor of the geometry of the structure and of the rod dimensions and locations is investigated.