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Lockout and Tagout in a Manufacturing Setting from a Situation Awareness Perspective

Division of Operations and Maintenance, Luleå University of Technology, 97187 Luleå, Sweden
Department of Education and Training, University of Vocational Technology, Ratmalana 10390, Sri Lanka
Work Science Academy, Kandana 11320, Sri Lanka
Author to whom correspondence should be addressed.
Safety 2019, 5(2), 25;
Received: 1 April 2019 / Revised: 19 April 2019 / Accepted: 25 April 2019 / Published: 29 April 2019
Applying lockouts during maintenance is intended to avoid accidental energy release, whereas tagging them out keeps employees aware of what is going on with the machine. In spite of regulations, serious accidents continue to occur due to lapses during lockout and tagout (LOTO) applications. Few studies have examined LOTO effectiveness from a user perspective. This article studies LOTO processes at a manufacturing organization from a situation awareness (SA) perspective. Technicians and machine operators were interviewed, a focus group discussion was conducted, and operators were observed. Qualitative content analysis revealed perceptual, comprehension and projection challenges associated with different phases of LOTO applications. The findings can help lockout/tagout device manufacturers and organizations that apply LOTO to achieve maximum protection. View Full-Text
Keywords: lockout; tagout; qualitative content analysis; situation awareness lockout; tagout; qualitative content analysis; situation awareness
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MDPI and ACS Style

Illankoon, P.; Manathunge, Y.; Tretten, P.; Abeysekara, J.; Singh, S. Lockout and Tagout in a Manufacturing Setting from a Situation Awareness Perspective. Safety 2019, 5, 25.

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