Simultaneous exposure of humans to fields of different frequency – incident and internal field dosimetry with respect to national and international legal acts
Abstract
The paper deals with simultaneous exposure of humans to different low frequency (LF) electric and magnetic fields within the high voltage (HV) substation by means of measurement of electric and magnetic field spectra and calculation of fields induced within the human body. Typical 110 kV 1 transmission substation as well as 110 kV overhead power line (fir tree mast), is considered as the most common LF source. Note that the measured fields pertain to the worst case scenario, i.e. to the fields below tubular busbar within the substation. Furthermore, the measured results are postprocessed and, finally, internal fields are determined by using the canonical body models (disk model and cylindrical model). The obtained results are compared against reference levels proposed by Croatian regulations for the protection from electromagnetics fields (National Gazette No 146/2014, 31/2019) and ICNIRP (International Commision on Nonionizing Radiation protection) Guidelines 2010.
