In the present master’s study, there is analyzed electro-safety and harmonization to applicable norms. The object of the study is analysis of literature, norms and standards. The objective of the study is harmonization of norms of electro-safety and norms of safety installation of electrical equipment. Methods of work: a) analysis, b) comparison, c) generalization. Methodology of the study: analysis of literature and documents. Results of the study: Performed researches have show, that normative documents no always correspond actual electro-safety protection. Therefore, there should be reconsidered criteria of hazardousness of electricity.