Fluctuations of electromagnetic field components under high voltage lines

Abstract

High voltage (HV) Lines are part of the national electricity system. They are used for electrical power distribution 
between the power plant and the recipient. In addition to fulfilling this function, they generate unintentional 
electromagnetic field (EMF). In order to reduce the field impact on animate and inanimate objects it used to be 
determined under HV lines protection zones and technological. During electricity transmission occur PEM 
interferers, which process is dependent on changes e.g., voltage dips, short interruptions or in system. Voltage and 
current in changes the line superimpose on the alternating electromagnetic field produced by the HV lines and 
form a modulated waveform signals of different frequencies (50 Hz fundamental frequency, interharmonics and 
harmonics systems).