PEEC modeling of lightning protection systems and coupling to coaxial cables

This paper proposes a partial element equivalent circuit (PEEC) model for t he analysis of the electromagnetic environment inside a building during dir ect or nearby lightning strike. A PEEC model for the lightning protection s ystem (LPS) is developed in conjunction with a PEEC model for braided coaxi al cables, A two-step matrix solution of the whole set of equations describ ing the LPS and cables allows one to predict the current distribution in th e downconductors and the induced voltages and currents on the cables' shiel d and loads. Results are given in frequency and time domain for direct and nearby lightning strikes and for different positions of the cables inside t he LPS volume.