Development of lightning electromagnetic impulse simulator on buildings

In this paper, we report the development of lightning electromagnetic impulse simulator on buildings. This simulator is linked with the counting code VSTL (Virtual Surge Test Lab.) based on the FDTD (Finite Difference Time Domain) method being developed by Central Research Institute of Electric Power Industry. We can analyze the current, voltage and electromagnetic field intensity of buildings which were quantified on real time at the direct stroke on the building lightning rod. With this analysis, a proper layout plan of important rooms in buildings has successfully been performed, and the optimum lightning Surge Protection Device (SPD) can be selected. And we made experiments to validate this simulator using a building scale model. This model was built on 1/4 scale of a building.