<p>As the proportion of renewable energy sources such as PV and wind power increases, interest in electromagnetic waves generated by these power generation facilities is also increasing. Therefore, it is essential to secure and evaluate human safety against electromagnetic fields(EMF), and it is necessary to reduce industrial accidents by detecting in advance the risk of electric shock caused by EMF generated inside renewable energy facilities. In addition, the application of non-grounded(IT) grounding systems is increasing as one of the measures to ensure stable power supply for renewable energy facilities and safe use of electricity. Therefore, in order to secure the advantages of this grounding system, it is necessary to continuously monitor the insulation status of the power lines in operation. In this paper, a non-contact EM (Electromagnetic) sensor was designed and applied to diagnose the risk of electric shock due to leakage fault voltage of EF(Electric-Field) and MF(Magnetic-Field) signals generated on the surface of power panels of renewable energy facilities. In addition, the L(Leakage) sensor was used to detect leakage current occurring in the grounding section of each power panel, thereby diagnosing the electric shock condition according to the insulation resistance status. Through this research, we aim to prevent problems such as breakdowns, electric shocks, and fires that arise from the increase in renewable energy facilities in advance and to contribute to increasing the safety and reliability of renewable energy facilities.</p>