Segurança no trabalho nas operações de desenergização e energização de subestações de energiza em 13,8 kV

Abstract

In the year of 2017 occurred 1,387 deaths caused by accidents of electrical origin, and the main causative agents of accidents are unsafe acts and unsafe conditions. This academic work aimed to analyze the risks related to safety at work in the de-energization and energization operations of substations of electrical facilities in industrial companies, business condominiums, hospitals and malls. For the accomplishment of this monograph, three electrical facilities within each type were chosen, totaling 12 facilities, and were established 10 normative items related to safety in the operation of the substations to be verified. Based on preventive maintenance reports, as results, the conformities and nonconformities of the analyzed facilities were verified. It was found that the facility with the larger number of deficiencies presented 80% of the items in nonconformity, and the facility with de smaller number of deficiencies presented just 20%. The average of nonconformity found in the analysis was 51%, and the facilities of the malls have the smaller number of deficiencies on average. It was also verified that the most common nonconformities found in the analyzed facilities are related to identification of circuits and electrical conductors, and the lack of emergency stop device. From the data obtained, corrective actions were suggested for the deficiencies found.