I’ve written about the Hierarchy of Controls in past posts. I’ve focused on the engineering side of the control equation: Physical changes to machine design to eliminate hazards and mechanical or electrical control systems that can reduce risk. The first two levels of the Hierarchy, Elimination/Substitution and Engineering Controls are typically more challenging to apply…
Read MoreInconsistencies in ISO 13849-1:2006
I’ve written quite a bit recently on circuit architectures under ISO 13849-1, and one of my readers noticed an inconsistency between the standard text and Figure 5. This diagram shows how the categories can span one or more Performance Levels. If you look at Category 2 in Figure 5, you will notice that there are…
Read MoreEC Machinery Working Group meets
From our friends at MachineBuilding.net. It is now more than a year since the new Machinery Directive (2006/42/EC) came into force, but the situation is still fairly fluid in some respects. The EC Machinery Working Group meets regularly to discuss matters relating to the Directive and corresponding standards; the last meeting took place on 21/22…
Read MoreRetained fastenings for fixed guards
If you are building machinery that will be CE marked or is subject to the EU Machinery Directive, you need to read this article at MachineBuilding.net This article reviews some of the retained fastenings that are available for use on fixed machine guards, as required by the new Machinery Directive 2006/42/EC and the guarding standard…
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