Surge current distribution in the lightning protection system of a test house equppied in electrical and electronic appliances

Open air experiments were conducted of surge current distribution in the lightning protection system, supplying cable and electrical installation of a test house equipped in household appliances. Surge currents were injected from the generator into the installation. Current distributions in elements of tested system were measured with multi-channel electro-optical system. To verify the experimental results the simulations of surge current in the test house modeled in ATP-EMTP were conducted. The results indicated a significant influence of frequency dependent parameters of the test house elements on both the amplitude and the shape of current waveforms.