Machine guarding and the hierarchy of measures for hazard mitigation

Do you know the five levels of hazard mitigation? Machine guarding isn’t completed task that’s checked off a list. Eliminate, isolate, add engineering, implement controls, and use PPE, then repeat.

10/25/2011


JB Titus, CFSEIndustry is learning about the “hierarchy of measures” for hazard mitigation as more work is accomplished on the changing landscape of machine guarding. None of these measures are new to industry. However, documenting the process and organizing your thoughts is somewhat new. Do you know what the five levels are for hazard mitigation?

Control Engineering machine control - robotic iconMachine guarding is a process and not an event. As a result of innovation the most effective machine guarding can now begin in the design stage and no longer needs to be an afterthought and added during installation. Hence, the process begins with the risk assessment to identify all of the hazards. It’s at this stage that the hazards can be eliminated with the least cost or investment. Therefore, the process of hazard mitigation begins at this point. In many cases the design phase continues and so does the hazard identification and hazard mitigation. This is why it’s important to know, understand, and practice the risk assessment requirement as a living process and document.

So, what are the five levels of hazard mitigation in machine guarding?

1) Eliminate the hazard – design it out

2) Isolate the hazard with hard guarding

3) Add additional engineering, guards, devices, or layers of safety

4) Implement administrative controls like – training, signage, assessments, etc.

5) Use personal protective equipment (PPE) like - goggles, gloves, outer clothing, shields, etc.

All five levels are fully acceptable risk mitigation solutions to achieve that “acceptable” level of mitigated risk. In my opinion, that acceptable level of risk for a given hazard is intentionally left undefined because you are the one who defines the tolerable level of risk you’re willing to accept.

Is this process working in your safety culture?

Your comments or suggestion are always welcome so please let us know your thoughts. Submit your ideas, experiences, and challenges on this subject in the comments section below. Click on the following text if you don't see a comments box, then scroll down: Machine Guarding & The Hierarchy of Measures for Hazard Mitigation

Did you see the Safety Integration Webcast?

Related articles:

Risk assessment - A best practice for sustainable performance

Contact: www.jbtitus.com for “Solutions for Machine Safety”.



No comments
The Top Plant program honors outstanding manufacturing facilities in North America. View the 2015 Top Plant.
The Product of the Year program recognizes products newly released in the manufacturing industries.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
Strategic outsourcing delivers efficiency; Sleeve bearing clearance; Causes of water hammer; Improve air quality; Maintenance safety; GAMS preview
World-class maintenance: The three keys to success - Deploy people, process and technology; 2016 Lubrication Guide; Why hydraulic systems get hot
Your leaks start here: Take a disciplined approach with your hydraulic system; U.S. presence at Hannover Messe a rousing success
Flexible offshore fire protection; Big Data's impact on operations; Bridging the skills gap; Identifying security risks
The digital oilfield: Utilizing Big Data can yield big savings; Virtualization a real solution; Tracking SIS performance
Getting to the bottom of subsea repairs: Older pipelines need more attention, and operators need a repair strategy; OTC preview; Offshore production difficult - and crucial
Applying network redundancy; Overcoming loop tuning challenges; PID control and networks
Putting COPS into context; Designing medium-voltage electrical systems; Planning and designing resilient, efficient data centers; The nine steps of designing generator fuel systems
Package boilers; Natural gas infrared heating; Thermal treasure; Standby generation; Natural gas supports green efforts

Annual Salary Survey

Before the calendar turned, 2016 already had the makings of a pivotal year for manufacturing, and for the world.

There were the big events for the year, including the United States as Partner Country at Hannover Messe in April and the 2016 International Manufacturing Technology Show in Chicago in September. There's also the matter of the U.S. presidential elections in November, which promise to shape policy in manufacturing for years to come.

But the year started with global economic turmoil, as a slowdown in Chinese manufacturing triggered a worldwide stock hiccup that sent values plummeting. The continued plunge in world oil prices has resulted in a slowdown in exploration and, by extension, the manufacture of exploration equipment.

Read more: 2015 Salary Survey

Maintenance and reliability tips and best practices from the maintenance and reliability coaches at Allied Reliability Group.
The One Voice for Manufacturing blog reports on federal public policy issues impacting the manufacturing sector. One Voice is a joint effort by the National Tooling and Machining...
The Society for Maintenance and Reliability Professionals an organization devoted...
Join this ongoing discussion of machine guarding topics, including solutions assessments, regulatory compliance, gap analysis...
IMS Research, recently acquired by IHS Inc., is a leading independent supplier of market research and consultancy to the global electronics industry.
Maintenance is not optional in manufacturing. It’s a profit center, driving productivity and uptime while reducing overall repair costs.
The Lachance on CMMS blog is about current maintenance topics. Blogger Paul Lachance is president and chief technology officer for Smartware Group.
This article collection contains several articles on the vital role that compressed air plays in manufacturing plants.
This article collection contains several articles on the Industrial Internet of Things (IIoT) and how it is transforming manufacturing.
This article collection contains several articles on strategic maintenance and understanding all the parts of your plant.
click me