Comparison of electromagnetic fields emitted by typical overhead power line towers
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ORIGINAL PAPER
Comparison of electromagnetic fields emitted by typical overhead power line towers Jozef Bendík1
· Matej Cenký1 · Žaneta Eleschová1 · Anton Belánˇ 1 · Boris Cintula1 · Peter Janiga1
Received: 17 April 2020 / Accepted: 25 October 2020 © Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract The problem of electromagnetic fields produced by overhead power lines is still a widely discussed topic. These concerns itself are coming not only from the power line designers, but also from general public sector. Therefore, the topic can be separated into two different areas of interest: health concerns and technical problems. Conducted discussion and research regarding electromagnetic field’s health risks to general public led to creation of legislative time restrictions and absolute value limits for low-frequency electromagnetic fields. On the other hand, technical side of problem is mostly connected with electromagnetic induction in connection with surrounding objects around power lines. Still, precise calculations are needed for both of these areas of interest. The aim of this article is to carry an analysis comparing various electromagnetic fields emitted from basic types of power lines in 2D space. Comparison is made for the worst-case scenarios and for different sets of boundary conditions. The paper also shows the marginal difference of EMF generally emitted by EHV and HV systems. To achieve the most precise results, an integral–differential EMF calculation methodology is introduced and implemented into software interface. Final results are applicable in overhead lines design and planning process and are also suitable for future research of overhead power lines. Keywords Electromagnetic fields · Overhead power lines · Health concerns · Non-ionizing radiation
1 Introduction Energized overhead power lines1 are common source of lowfrequency electromagnetic field (EMF). This field has two basic compounds, the intensity of electric field E and induction of magnetic field (magnetic flux density) B. The currents in the phase conductors are the source of B, and electrical charges in phase conductors, ground and surrounding objects 1
Power lines capable of energy transfer, connecting two points with different voltage potentials.
This contribution/publication is the result of the project implementation: Efektívne riadenie vyroby a spotreby energie z ˇ obnoviteLnÝch zdrojov ITMS: 26240220028 supported by the Research & Development Operational Programme funded by the ERDF.
B 1
Jozef Bendík [email protected] Institute of Power and Applied Electrical Engineering, Faculty of Electrical Engineering and Information Technology, Slovak University of Technology, Ilkoviˇcova 3, 841 04 Bratislava, Slovakia
are the source of E. The result is time-varying and lowfrequency electromagnetic field [1,2]. Low-frequency EMF (ELF) is classified as non-ionizing radiation, which means that it does not cause environmental ionization. Its energy is insufficient to cause the phenomenon of removing the electron co
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