Machine Safety: Does it matter, the Aggregate Hazard Level for a machine?

When conducting a risk assessment of the machine’s individual identified hazards does the safety level of the complete machine or system matter? Does anyone have a solution for determining the aggregate level of an entire machine? Does anybody care?

03/23/2012


When conducting a risk assessment of the machine’s individual identified hazards does the safety level of the complete machine or system matter? Does anyone have a solution for determining the aggregate level of an entire machine? Does anybody care? 

Safety matters logo.

   Over the past two or three years we’ve engaged in abundant discussions over the increased value of migrating from qualitative measures for machine hazard analysis and mitigation versus quantitative measures. Stage right – enters ISO 13849-1&2 for a comprehensive quantitative approach that analyzes and mitigates machine hazards to acceptable levels. Clients now ask, why does the new more comprehensive approach stop short of determining the aggregate machine level or system level of hazard? Does anyone anywhere roll up the risk analysis to an aggregate level?

   In my opinion, a few disciplines do exactly that!

   Let’s list several disciplines that identify an aggregate risk level:

1. Disaster recovery

2. Environmental polution

3. Information Technology

4. Banking

5. Defense

6. Insurance

... to mention a few

   So, if management in these sectors can get aggregate levels of risk analysis why can’t management of manufacturing operations machinery based? Isn’t it possible for management to know a risk level by machine? Why roll out a quantitative analysis for hazards on and around a machine only for use by the EH&S, engineering, and maintenance personnel. This leaves management thirty years behind with qualitative awareness’s kept in their minds. How about providing management with an aggregate machine hazard level by something like:

1. The value of the highest mitigated hazard, or

2. The summation average of all mitigated hazards, or

3. A proportional average of all mitigated hazards, or

...something else?

   A manager of manufacturing operations should know his aggregate hazard level (SIL, PL, etc.) by machine just like his pier in the IT office? What have you found or what are you using to answer this call? Doesn’t this make sense?

   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 Safety: Does it matter, the Aggregate Hazard Level for a machine?

   Related articles:

Updating Minds About Machine Safety

EN ISO 13849-1, the quantitative approach to machine safety begins with a qualitative process!

How To Integrate Safety

Machine Safety – the myths of safety cultures.

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...
Hannover Messe 2016: Taking hold of the future - Partner Country status spotlights U.S. manufacturing; Honoring manufacturing excellence: The 2015 Product of the Year Winners
Inside IIoT: How technology, strategy can improve your operation; Dry media or web scrubber?; Six steps to design a PM program
World-class manufacturing: A recipe for success: Finding the right mix for a salad dressing line; 2015 Salary Survey: Manufacturing slump dims enthusiasm
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
Digital oilfields: Integrated HMI/SCADA systems enable smarter data acquisition; Real-world impact of simulation; Electric actuator technology prospers in production fields
Special report: U.S. natural gas; LNG transport technologies evolve to meet market demand; Understanding new methane regulations; Predictive maintenance for gas pipeline compressors
Warehouse winter comfort: The HTHV solution; Cooling with natural gas; Plastics industry booming
Managing automation upgrades, retrofits; Making technical, business sense; Ensuring network cyber security
Designing generator systems; Using online commissioning tools; Selective coordination best practices

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.
click me