ERGONOMIC ANALYSIS OF PRUNING TREES IN CONFLICT WITH POWER LINES

Autores

DOI:

https://doi.org/10.5380/rf.v53i4.79831

Palavras-chave:

Urban afforestation, ergonomics, workplace safety

Resumo

Ergonomic analysis of pruning trees in conflict with power lines. Pruning trees in conflict with power lines is associated with several ergonomic risks due to postural issues and exposure to environmental conditions, such as noise and vibration in work activities. Additionally, there are life-threatening risks from falls or contact with power lines. The objective of this work was to apply the Ergonomic Workplace Analysis (EWA) method and assess the exposure of workers involved in pruning of trees conflicting with power lines to noise and vibration. The survey was conducted considering outsourced employees that provide services to an electric utility company in the state of Bahia, Brazil. The results obtained through EWA showed a regular risk rate, with concerning aspects, such as verbal communication (dialogue among workers regarding technical/operational issues), irregular posture of back, arms, and shoulders, high attention demand, and activity limitations. Quantitative analysis showed 84.9 dB (A-weighted) for noise and 2.440 m s-2 for vibration, both close to the action level. The pole saw vibration reached 3.703 m s-2, exceeding the tolerance limit. The importance of breaks, at-work exercises, and training is emphasized as ergonomic measures. A rotation system should be implemented in tree pruning activities to reduce exposure to vibration

Biografia do Autor

Nayane Amaral Santos, Universidade Estadual do Sudoeste da Bahia (UESB), Vitória da Conquista, Bahia

Atua na área de segurança do trabalho. Mestrado em Ciências Florestais pela Universidade Estadual do Sudoeste da Bahia (UESB)

Luís Carlos de Freitas, Universidade Estadual do Sudoeste da Bahia (UESB), Vitória da Conquista, Bahia

Professor Pleno, Universidade Estadual do Sudoeste da Bahia (UESB). Area de atuação: Colheita e Transporte Florestal, Ergonomia, Economia e Planejamento Florestal. 

Nilton César Fiedler, Universidade Federal do Espírito Santo (UFES), Jerônimo Monteiro, Espírito Santo

Professor Titular, Universidade Federal do Espérito Santo (UFES), Departamento de Ciências Florestais e da Madeira, Jerônimo Monteiro, ES. Área de atuação: Colheita e Transporte Florestal e Ergonomia.

Elton Silva Leite, Universidade Federal do Recôncavo da Bahia (UFRB), Cruz das Almas, Bahia

Professor Associado, Universidade Federal do Recôncavo da Bahia (UFRB). Area de atuação: Colheita e Transporte Florestal e solos florestais.

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Publicado

29-09-2023

Como Citar

Santos, N. A., Freitas, L. C. de, Fiedler, N. C., & Leite, E. S. (2023). ERGONOMIC ANALYSIS OF PRUNING TREES IN CONFLICT WITH POWER LINES. FLORESTA, 53(4), 433–443. https://doi.org/10.5380/rf.v53i4.79831

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