Análise de riscos nas atividades de manutenção de redes elétricas desenergizadas: proposta de medidas de controle de riscos baseado na NR-10

Abstract

The NR-10, rule that sets regular procedures in relation to safety, health and general conditions for workers operating with electric power in all work environments covering from the building construction, commercial activities, industrials, rural and even domestic activities. This rule cause a direct impact on companies and provisional services of electricity, the aspects to identify what should be done and if applicable or not in many other situations in the company. Furthermore, the development in an electricity concessionaire was aiming to identify workplaces’ main facts that contribute to incidents in emergency services in overhead and underground transmissions grids of electric power. This study will analyze the Normative Instructions and the original operating procedures developed by workers themselves due to unexpected and uncertainties of the emergency services nature. Additionally are also identified types of the most commons accidents in the activity and its correlation with environmental factors, constituting in an important element to the development of an accident prevention system to all companies working with emergency services of distribution of electricity. The aim of this study is to apply the regulatory norm 10 (NR-10) on a service provider of electrical installations regarding to the maintenance and construction of transmission and distribution of electricity network. Developing along with the company the documentation required by the norm referring to operational procedures, re-elaboration of existing service order in the company to perform the work with electricity or around it to implement the method of preliminary risk analysis (PRA) before the execution of works to verify the tools and PPE needed; also, this work is the preparation of Safety Procedures for implementation of activities related and through these control measures that the study seeks to assist company directors in preventing accidents in electricity networks and ensuring a better quality of life for employees.