Calculation of interception efficiencies for mesh-type air-terminations according to IEC 62305-3 using a dynamic electro-geometrical model

Interception efficiency is the most important parameter to show the effectiveness of air-terminations. With the dynamic electro-geometrical model, a numerical method, it is possible to calculate such interception efficiencies. This model is based purely on internationally accepted models, parameters, and dependencies. So far it is used to calculate the interception efficiencies for rod-type air-terminations. An adaption of this model allows the calculation of interception efficiencies for mesh-type air-terminations. Up to now the effectiveness of this kind of air-terminations could only be shown on an “empirical base”. This gap could be closed now using the results of this paper.