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Machine guarding is part of the principles of Machine safety, although this could be a misnomer: this has nothing to do with the safety of the machines in your plant, it concerns the safety of your personnel that interface with machines during their work. Basically, it achieves its goal by keeping workers out of the danger zone surrounding dangerous machine parts.
Any machine or machine part in your plant that can harm a worker must be safeguarded. Some basic types of hazardous mechanical motions and actions are rotating shafts (including in-running nip points), cutting, pinching, reciprocating, punching, shearing, or bending. An accident is an event that happens by chance or that is without apparent or deliberate cause, removing access to the workers from any of those machine hazards greatly reduces the chance of an accident happening, and reduces the level of injury due to an accident.
The basic steps to safeguard machines in the work environment include:
- Risk assessment, where we determine the level of danger associated with a specific machine:
o how badly can this machine hurt someone,
o are work conditions ripe for this accident to happen?
- Risk reduction: Application of controls, alternatives that can make the machine less dangerous or work practices that can keep the workers safer. Machine guards are part of these choices.
- Selection and application of machine guards that make the area around a dangerous machine safer:
o fixed or adjustable guards.
o presence sensing devices interlocked with personnel gates (such as light barriers),
o access barriers that interlock with the machine power, such as two-hand controls,
o specialized controls (e-stop, safety relay).
One of the original safety standards used for machine safety was EN 954, replaced around 2011 by ISO 13849-1 and IEC 62061. Principles and techniques from these standards provide a guide to achieving machine guarding and safety in a reliable and dependable fashion. Studying some of them will make workers involved in the machine guarding techniques better prepared to do their work.
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Course topics
I. Introduction to Machine Guarding and Safety
Objective: Understand the fundamental concepts and importance of machine guarding in industrial environments.
II. Risk Assessment in Machine Safety
Objective: Learn how to assess and identify potential risks associated with specific machines and work conditions.
III. Risk Reduction Strategies
Objective: Explore strategies for reducing risks, including the application of controls and alternative safety measures.
View all topicsI. Introduction to Machine Guarding and Safety
Objective: Understand the fundamental concepts and importance of machine guarding in industrial environments.
- Definition and Purpose of Machine Guarding
- Distinction Between Machine Safety and Machine Functionality
- Overview of Hazardous Mechanical Motions and Actions
- Historical Context and Evolution of Machine Safety Standards
II. Risk Assessment in Machine Safety
Objective: Learn how to assess and identify potential risks associated with specific machines and work conditions.
- Importance of Risk Assessment in Machine Safety
- Identifying Machine Hazards
- Evaluating Likelihood and Severity of Accidents
- Documentation and Record-Keeping in Risk Assessment
III. Risk Reduction Strategies
Objective: Explore strategies for reducing risks, including the application of controls and alternative safety measures.
- Application of Engineering Controls
- Administrative Controls and Work Practices
- Role of Machine Guards in Risk Reduction
- Implementation of Alternative Safety Measures
IV. Types of Machine Guards
Objective: Understand the different types of machine guards and their applications in enhancing workplace safety.
- Fixed and Adjustable Guards
- Presence Sensing Devices (e.g., Light Barriers)
- Interlocking Personnel Gates with Safety Devices
- Two-Hand Controls and Their Significance
- Emergency Stop (E-stop) and Safety Relays
- Selection Criteria for Appropriate Machine Guards
V. Safety Standards and Regulations
Objective: Familiarize yourself with key safety standards, their evolution, and their practical application in machine guarding.
- Overview of EN 954, ISO 13849-1, and IEC 62061
- Transition from EN 954 to Modern Standards
- Principles and Techniques in Safety Standards
- Legal and Regulatory Compliance
- Impact of Globalization on Safety Standards
VI. Practical Applications of Machine Guarding
Objective: Apply theoretical knowledge to real-world scenarios through case studies and hands-on exercises.
- Case Studies of Effective Machine Guarding
- Hands-On Risk Assessment Exercises
- Utilizing Safety PLCs for Enhanced Safety
- Simulated Scenarios and Response Strategies
VII. Continuous Improvement and Future Trends
Objective: Explore strategies for ongoing improvement in machine guarding techniques and staying updated on industry trends.
- Importance of Continuous Learning in Safety
- Addressing Evolving Safety Standards and Regulations
- Incorporating Emerging Technologies in Machine Safety
- Industry Collaboration and Information Sharing
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Daniel Chartier
Years of Experience34Daniel Chartier travaille comme ingénieur électrique depuis près de 30 ans, et est spécialisé en automatisation et contrôles. Il a travaillé dans des fonderies d'aluminium et les mines, dans l'emballage, les stations de pompage et dans la construction d'usines thermiques (District Cooling) au cours des ans. Il a été responsable du développement de formations de sécurité dans...
See Daniel Chartier CVExpertise
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Sharmil Joseph, Madsen Diesel and TurbineDaniel has a deep knowledge on what he is teaching. He is very kind and has immense patience. He didn't make the course boring.
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Keith Dmyterko, Canadian Light Source Inc.Daniel presented the topics in a very interesting way and gave interesting real-world examples for the topics at hand.
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Simon-Paul Comeau, Graves ElectricalDaniel is full of knowledge and I felt like he really cares about our safety.
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