Machinery Safety 101

The Third Level of the Hierarchy: Information for Use

This entry is part 3 of 5 in the series Hier­archy of Con­trols

I’ve writ­ten about the Hier­archy of Con­trols in past posts, but 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…

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Inconsistencies in ISO 13849 – 1:2006

This entry is part 7 of 8 in the series Cir­cuit Archi­tec­tures Explored

I’ve writ­ten quite a bit recently on the top­ic of cir­cuit archi­tec­tures under ISO 13849 – 1, and one of my read­ers noticed an incon­sist­ency between the text of the stand­ard and Fig­ure 5, the dia­gram that shows how the cat­egor­ies can span one or more Per­form­ance Levels. If you look at Cat­egory 2 in Fig­ure 5, you will notice…

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EC 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 Decem­ber.…

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Retained 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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