LIGHTNING-INDUCED TRANSIENT VOLTAGES IN PRESENCE OF COMPLEX STRUCTURES AND NONLINEAR LOADS

This paper deals with the induced transient voltages on nonlinearly te rminated metallic loops inside a building due to an indirect lighting strike, The conductive parts of the building (such as reinforcing bars in walls and floors, metallic beams), the lightning protection system , and the loops are simulated by an electric field integral equation i n time domain, with the nonlinear loads by a system of nodal equations , These two sets of equations allow a solution to be determined comple tely in time domain, The proposed technique is validated by comparison with other referenced numerical techniques, Some results which show t he effects of the conductive structural elements of the building on th e induced transients are presented.