Work accidents and automatic circuit reclosers in the electricity sector: beyond the immediate causes

Cadernos de saúde pública
Alessandro Jose Nunes da SilvaSandra Lorena Beltran Hurtado

Abstract

The Brazilian electricity sector has recorded high work-related mortality rates that have been associated with outsourcing, used to cut costs. In order to decrease the power outage time for consumers, the industry adopted the automatic circuit recloser as the technical solution. The device has hazardous implications for maintenance workers. The aim of this study was to analyze the origins and consequences of work accidents in power systems with automatic circuit recloser, using the Accident Analysis and Prevention (AAP) model. The AAP model was used to investigate two work accidents, aimed to explore the events' organizational origins. Case 1 - when changing a deenergized secondary line, a worker received a shock from the energized primary cable (13.8kV). The system reclosed three times, causing severe injury to the worker (amputation of a lower limb). Case 2 - a fatal work accident occurred during installation of a new crosshead on a partially insulated energized line. The tip of a metal cross arm section strap touched the energized secondary line and electrocuted the maintenance operator. The circuit breaker component of the automatic circuit recloser failed. The analyses revealed how business management logic can participate...Continue Reading

References

Dec 19, 2006·Revista de saúde pública·Vilma Sousa SantanaAnadergh Barbosa-Branco
Apr 7, 2009·Cadernos de saúde pública·Maria Carmen Martinez, Maria do Rosário Dias de Oliveira Latorre
Aug 3, 2010·Revista de saúde pública·Suerda Fortaleza de SouzaLauro Antonio Porto
Nov 8, 2014·Safety and Health at Work·Aikaterini D Baka, Nikolaos K Uzunoglu
Nov 13, 2014·Ciência & saúde coletiva·Ildeberto Muniz de AlmeidaSandra Lorena Beltran

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