The analysis of work-related accidents is important for accident surveillance and prevention. Current methods of analysis seek to overcome reductionist views that see these occurrences as simple events explained by operator error. The objective of this paper is to analyze the Model of Analysis and Prevention of Accidents (MAPA) and its use in monitoring interventions, duly highlighting aspects experienced in the use of the tool. The descriptive analytical method was used, introducing the steps of the model. To illustrate contributions and or difficulties, cases where the tool was used in the context of service were selected. MAPA integrates theoretical approaches that have already been tried in studies of accidents by providing useful conceptual support from the data collection stage until conclusion and intervention stages. Besides revealing weaknesses of the traditional approach, it helps identify organizational determinants, such as management failings, system design and safety management involved in the accident. The main challenges lie in the grasp of concepts by users, in exploring organizational aspects upstream in the chain of decisions or at higher levels of the hierarchy, as well as the intervention to change the determinants of these events.

Resumo A abordagem de Saúde do Trabalhador entende que é necessário ampliar o objeto das políticas públicas para transformar os processos de trabalho que determinam a relação saúde-doença. Essa ampliação traz desafios que impulsionam o desenvolvimento da formulação e implementação das políticas para a vigilância e prevenção de agravos. O objetivo deste artigo é analisar o desenvolvimento das políticas brasileiras em saúde do trabalhador a partir das contradições históricas. Para este fim, foi usado o conceito analítico de contradição da teoria da atividade histórico-cultural. Trata-se de uma revisão de escopo que inclui 64 estudos teóricos, empíricos e literatura cinza publicados entre 1991 e 2019. Os resultados da análise mostraram que: a partir da mudança de objeto da prevenção inserida pela abordagem da Saúde do Trabalhador, emergiram cinco novas contradições que estão relacionadas ao predomínio de instrumentos do modelo de atividade anterior, instrumentos normativos e de formação, divisão do trabalho para as ações de assistência e vigilância, articulações intra e intersetoriais e controle social. Essas contradições permitiram impulsionar algumas mudanças, mas também existem limitações que persistem em torno de um objeto desafiante.

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 in the root causes of work accidents through failures in maintenance management, outsourced workforce management, and especially safety management in systems with reclosers. Decisions to adopt automation to guarantee power distribution should not overlook the risks to workers in overhead power lines or fail to acknowledge the importance of ensuring safe conditions.

The superficial accident analysis conducted by the company that ignored human and organizational factors reinforces the traditional safety culture and favors the occurrence of new accidents.

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