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Safety of Machinery: Significant Differences in Two Widely Used International Standards for the Design of Safety-Related Control Systems

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Department of Mathematics and Industrial Engineering, Polytechnique Montreal, P.O. Box 6079, Station Centre-ville, Montreal, QC H3C 3A7, Canada
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Compliance inSight Consulting Inc., 145 Deer Ridge Drive, Kitchener, ON N2P 2K9, Canada
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Department of Mechanical and Physical Risk Prevention, Institut de Recherche Robert-Sauvé en Santé et en Sécurité du Travail (IRSST), 505 De Maisonneuve Blvd. West, Montreal, QC H3A 3C2, Canada
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Consultation Réal Bourbonnière, 58, rue de la Crête, Orford, QC J1X 0C5, Canada
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Author to whom correspondence should be addressed.
Safety 2019, 5(4), 76; https://doi.org/10.3390/safety5040076
Received: 8 August 2019 / Revised: 19 October 2019 / Accepted: 25 October 2019 / Published: 29 October 2019
(This article belongs to the Special Issue Occupational Health and Safety New Challenges for Industry)
Industrial machines are known to possess many hazards. There are many laws, regulations, standards and practices that aim at ensuring that machines are safe for different workers performing various tasks including operation and maintenance. Safeguards protect workers by stopping hazardous motion when actuated. Those safeguards are integrated into machinery using two widely used international standards for functional safety. However, these standards have some significant differences although they are both based on similar principles. This paper explores those differences and their potential impacts. Subjectivity in the specification and design of safety systems, based on the differences, can lead to different levels of reliability in the safety systems even when considering the same hazard zone of machinery based on which standard is used. View Full-Text
Keywords: machinery; hazards; risk analysis; ISO 13849; IEC 62061; functional safety machinery; hazards; risk analysis; ISO 13849; IEC 62061; functional safety
MDPI and ACS Style

Chinniah, Y.; Nix, D.S.G.; Jocelyn, S.; Burlet-Vienney, D.; Bourbonnière, R.; Karimi, B.; Mosbah, A.B. Safety of Machinery: Significant Differences in Two Widely Used International Standards for the Design of Safety-Related Control Systems. Safety 2019, 5, 76.

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