## 5 Conclusions
\begin{table}
\begin{tabular}{l l c c c c c c c c c} \hline \hline  & & \multicolumn{3}{c}{**Standards**} & \multicolumn{5}{c}{**Local Regulations**} \\ \cline{3-11}  & & & & & & & & & & & & \\ \cline{2-11}  & & & & & & & & & & & & \\ \cline{2-11}  & Transformer-distribution station 15 kV/0.4 kV & YES & YES & YES & YES & NO\({}^{1}\) & NO\({}^{2}\) & YES & YES & YES \\ \cline{2-11}  & Multi-family building with balconies near 110 kV overhead line & YES & YES & YES & YES & YES & YES & NO & YES & YES \\ \cline{2-11}  & Building plot under 110 kV overhead line (only \(E\)) & YES & YES & YES & YES & YES & YES & YES & YES & YES \\ \cline{2-11}  & Office space with inappropriate equipotential bonding (only H) & YES & YES & YES & YES & NO\({}^{1}\) & NO\({}^{2}\) & YES & YES & YES \\ \cline{2-11}  & Room above the MV/LV indoor station (only \(E\)) & YES & YES & YES & YES & YES & NO & NO & NO \\ \cline{2-11}  & LV switchboard (only H) & YES & YES & YES & NO & NO\({}^{1}\) & NO\({}^{2}\) & YES & YES & YES \\ \hline \multirow{11}{*}{
\begin{tabular}{l} \end{tabular} } & Warehouse hall near 110 kV double-track overhead lines & NO & YES & NO & NO & NO & NO & NO & NO & NO \\ \cline{2-11}  & Multi-family building with balconies near two 110 kV overhead lines & YES & YES & YES & NO & NO\({}^{1}\) & NO\({}^{2}\) & NO & NO & YES \\ \cline{2-11}  & Shopping center under 110 kV overhead line & YES & YES & YES & NO & NO\({}^{1}\) & NO\({}^{2}\) & YES & YES & YES \\ \cline{2-11}  & Residential building next to double-track overhead 110 kV lines & YES & YES & YES & NO & NO\({}^{1}\) & NO\({}^{2}\) & NO & YES & YES \\ \cline{2-11}  & Parking under 110 kV overhead line & YES & YES & YES & NO & NO\({}^{1}\) & NO\({}^{2}\) & NO & YES & YES \\ \cline{2-11}  & Terraced buildings near 110 kV double-track overhead lines & YES & YES & YES & NO & NO\({}^{1}\) & NO\({}^{2}\) & NO & YES & YES \\ \cline{2-11}  & Multi-family building with balconies near 15 kV overhead line & YES & YES & YES & NO & NO\({}^{1}\) & NO\({}^{2}\) & NO & YES & YES \\ \cline{2-11}  & Multi-family building under 110 kV overhead line & YES & YES & YES & NO & NO\({}^{1}\) & NO\({}^{2}\) & NO & NO & YES \\ \hline \hline \end{tabular} \({}^{1}\) Applies to provinces with the most restrictive regulations. \({}^{2}\) Applies to new installations and objects of “sensitive use”. In other cases, the requirements are met.  
\end{table} 
Table 7: Compliance of the examined cases with various standards and legal regulations regarding electromagnetic field limits. requirements set by Belgian regulations. In light of the regulations in force in Poland, and especially the low permissible \(E\) values, the established limits were exceeded in nine cases. Numerical simulations performed using FEMM software showed that the value of the \(E\) strongly depends on the distance from the source (in this case, from the 110 kV double-track overhead lines). At distances greater than 30 m from the chosen reference point, this parameter did not exceed the background level. Based on these simulations, it can also be concluded that a building wall made of steel with a thickness of at least 3 mm is sufficient to provide shielding from the EF. In the case of reinforced concrete structures, the so-called Faraday cage effect will also be observed. However, it should be noted that the MF is capable of penetrating through building walls. Actual EMF values depend on many factors, such as the configuration of the high-voltage line wires, the design of the pole, the type of wires used and the maximum voltage and current flowing through them. Therefore, it is advisable to measure the actual EMF levels with appropriate instruments once the construction process is complete. Conceptualization and methodology, L.S.L., M.O., A.Z. and G.R. ; formal analysis and investigation, P.M.T., E.G., Z.C., M.C., M.O. and L.S.L. ; resources, P.M.T., E.G., Z.C. and M.C. ; data curation, L.S.L., M.O., A.Z. and G.R. ; writing--original draft preparation, A.Z., P.M.T., E.G., Z.C., M.C., M.O. and L.S.L.