ASSESSMENT OF OCCUPATIONAL RISKS WHEN DESIGNING EVENTS FOR ELECTRICAL SAFETY AT WORKPLACE

Abstract

This work analyzes the causes and identifies the main factors contributing to accidents related to electric shock for workers in the production environment. A risk-oriented approach to managing the occupational safety system is proposed to reduce the level of electrical trauma in the workplace, specifically through the Hazard Identification Studies methodology. The characteristics of the main rooms in electrical substations are detailed. Existing hazards and harmful factors associated with the use of electrical equipment located within the electrical substation during the distribution of electrical energy at a voltage of 6 kV are analyzed. Criteria for assessing the probability and severity of potential hazards in the substation premises are presented. A hazard and risk identification map has been developed for various types of work performed by electricians during the repair and maintenance of electrical equipment located in the substation. It has been determined that the most dangerous processes for electricians involve the overhaul and maintenance of oil circuit breakers VMG-133 and VMG-10 (electrical equipment operating at voltages above 1000 V). Measures to minimize the identified risks are proposed. An approximate assessment of the impact of these occupational safety measures has been conducted, revealing that they reduce the risk level of dangerous incidents by half, from 20 to 10 points. The effectiveness of occupational safety measures in minimizing risk levels for all major technological processes during the repair of electrical equipment at electrical substations for the distribution of electrical energy at a voltage of 6 kV has been confirmed.