Loading...
Publication
Análise dos riscos elétricos e físicos na manutenção de linhas elétricas: caso dos colaboradores externos da E-REDES
| Name: | Description: | Size: | Format: | |
|---|---|---|---|---|
| 6.21 MB | Adobe PDF |
Authors
Advisor(s)
Abstract(s)
Esta dissertação centra-se na análise dos riscos elétricos e físicos associados à manutenção de linhas elétricas, com enfoque nos colaboradores externos da E-Redes. Trata-se de um estudo de um caso que visa analisar e compreender os perigos a que estes colaboradores estão expostos no desempenho das suas funções, assim como contribuir para práticas de prevenção e segurança no setor. A motivação para o desenvolvimento deste trabalho surgiu da necessidade, identificada pela empresa onde se realizou o estudo, de rever os seus Planos de Segurança e Saúde (PSS), incluindo novas instruções técnicas de segurança e medidas de proteção. Assim, esta investigação procura oferecer uma base técnica e científica que auxilie esse processo nas empresas no geral e nesta em particular. A metodologia adotada é de caráter quantitativo e descritivo, com recurso à análise documental de relatórios técnicos e PSS referentes aos últimos três anos. A recolha de dados foi realizada através de amostragem não probabilística por conveniência. Para o tratamento dos dados, foi aplicada a Metodologia Integrada de Avaliação de Riscos, adaptada de Cabral (2012), com base no modelo de Kinney e Wiruth (1976), na qual se avaliam os riscos em três variáveis: gravidade, exposição e probabilidade. Com base nesta análise, foi possível identificar, classificar e hierarquizar os principais riscos elétricos e físicos associados às atividades avaliadas, nomeadamente a Montagem de Apoios Aéreos Tubulares, com o perigo associado ao trabalho em altura, e a Execução de junções e instalação de caixas de fim de cabo, com risco associado à presença de corrente elétrica. Com base nesta análise, foi possível identificar, classificar e priorizar os principais riscos elétricos e físicos presentes nas atividades, nomeadamente: intervenções próximas de instalações em tensão, trabalhos em altura e passagem de cabos por condutas. Serão ainda propostas instruções técnicas de segurança específicas para os riscos mais significativos, contendo orientações claras sobre medidas preventivas, equipamentos de proteção individual (EPI) e procedimentos seguros de trabalho. O estudo pretende reforçar a importância da cultura de segurança e da avaliação sistemática de riscos como pilares fundamentais para a prevenção de acidentes de trabalho.
ABSTRACT This dissertation focuses on analyzing the electrical and physical risks associated with power line maintenance, with a focus on E-Redes' external employees. It is a case study aimed at analyzing and understanding the dangers to which these employees are exposed in the performance of their duties, as well as contributing to prevention and safety practices in the sector. The motivation for carrying out this work arose from the need, identified by the company where the study was carried out, to revise its Health and Safety Plans (HSP), including new technical safety instructions and protection measures. As such, this research seeks to provide a technical and scientific basis to help this process in companies in general and in this company in particular. The methodology adopted is quantitative and descriptive, using documentary analysis of technical reports and PSS for the last three years. Data was collected using non-probabilistic convenience sampling. To process the data, the Integrated Risk Assessment Methodology was applied, adapted from Cabral (2012), based on the Kinney and Wiruth's (1976) model, in which risks are assessed in three variables: severity, exposure, and probability. Based on this analysis, it was possible to identify, classify, and prioritize the main electrical and physical risks associated with the activities assessed, namely the Assembly of Tubular Aerial Supports, with the associated danger of working at height, and the Execution of junctions and installation of cable end boxes, with the associated risk of the presence of electric current. Based on this analysis, it was possible to identify, classify, and prioritize the main electrical and physical risks present in the activities, namely: working near live installations, working at height, and passing cables through ducts. Specific technical safety instructions will also be proposed for the most significant risks, containing clear guidelines on preventive measures, personal protective equipment (PPE), and safe working procedures. The study aims to reinforce the importance of a safety culture and systematic risk assessment as fundamental pillars for preventing accidents at work.
ABSTRACT This dissertation focuses on analyzing the electrical and physical risks associated with power line maintenance, with a focus on E-Redes' external employees. It is a case study aimed at analyzing and understanding the dangers to which these employees are exposed in the performance of their duties, as well as contributing to prevention and safety practices in the sector. The motivation for carrying out this work arose from the need, identified by the company where the study was carried out, to revise its Health and Safety Plans (HSP), including new technical safety instructions and protection measures. As such, this research seeks to provide a technical and scientific basis to help this process in companies in general and in this company in particular. The methodology adopted is quantitative and descriptive, using documentary analysis of technical reports and PSS for the last three years. Data was collected using non-probabilistic convenience sampling. To process the data, the Integrated Risk Assessment Methodology was applied, adapted from Cabral (2012), based on the Kinney and Wiruth's (1976) model, in which risks are assessed in three variables: severity, exposure, and probability. Based on this analysis, it was possible to identify, classify, and prioritize the main electrical and physical risks associated with the activities assessed, namely the Assembly of Tubular Aerial Supports, with the associated danger of working at height, and the Execution of junctions and installation of cable end boxes, with the associated risk of the presence of electric current. Based on this analysis, it was possible to identify, classify, and prioritize the main electrical and physical risks present in the activities, namely: working near live installations, working at height, and passing cables through ducts. Specific technical safety instructions will also be proposed for the most significant risks, containing clear guidelines on preventive measures, personal protective equipment (PPE), and safe working procedures. The study aims to reinforce the importance of a safety culture and systematic risk assessment as fundamental pillars for preventing accidents at work.
Description
Keywords
Segurança no trabalho Risco elétrico Risco físico Manutenção elétrica Avaliação do risco EPI Safety at work Electrical risk Physical risk Electrical maintenance Risk assessment PPE MSHT
Pedagogical Context
Citation
Mota ZV. Análise dos riscos elétricos e físicos na manutenção de linhas elétricas: caso dos colaboradores externos da E-REDES [dissertation]. Lisboa: Escola Superior de Tecnologia da Saúde de Lisboa/Instituto Politécnico de Lisboa; 2025.