Technology of personnel protection from the electromagnetic field in electrical installations of ultrahigh voltage classes

Abstract

The risk formation mechanisms of occupationally determined diseases of personnel from the action of electromagnetic field of industrial frequency in electrical installations of ultrahigh voltage classes (UHVC) for its estimation are investigated. The main possible causes of electric injury and occupationally determined diseases during repair work on the hot air lines of UHVC are considered. The model of "fault tree" in the case of the protective clothing destruction in the course of work is proposed. The substantiation of the maximum permissible parameters of electrical safety is given, taking into account the value of the maximum permissible electric energy. A system of continuous monitoring of the permissible energy levels absorbed by the body of personnel and signaling in case of exceeding the permissible level is proposed.