Effect of test site arrangement for large systems on test validity according to EN 61000-4-3

This paper deals with analysis of effect of a test site geometrical arrangement on the test validity when immunity test of large systems against radiated radiofrequency electromagnetic field is performed. Such a system often equipped with complex cabling cannot be arranged in accordance with normalized setup described by a standard. This leads to lower test validity. The analysis is focused on effect of cabling arrangement on induced current flowing through the cabling. Results obtained by numerical simulations are compared with measurements.