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Changes to EN ISO 13849-1:2015

By Admin on 17/03/2017

The planned merger of EN ISO 13849-1 and EN 62061 intoIEC/ISO 17305 by the Joint Working Group JWG1 did not eventually come to pass,however, during the attempt an official request was made to alter the existing version of EN ISO 13849-1 which did take place in December 2015. The latest 2015 edition is now harmonised to the Machinery Directive.

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Safety Key or Escape Release?

By Admin on 19/02/2014

The revised EN ISO 14119 standard explained and looks at a preventative alternative.

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A unified, sub-systematic approach to safe machine controls

By Admin on 07/09/2012

A chain is only as strong as its weakest link, so the saying goes. It is true in safety related machine controls, where the weakest link is the "subsystem", below which sit various types of device. A structure for such device types may help the planned merger of the current machine safety control standards, EN ISO 13849-1 and EN 62061.

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Are your safeguards as safe as you think?

By Admin on 30/05/2012

There are many machines fitted with multiple guards which are monitored in one circuit by series connected switches with dual channel wiring to what appears to be Category 3; does this sound like one of your machines? Then read on to learn about "fault masking".

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Safe machine design starts with Risk Assessment

By David Collier on 10/03/2012

Many mistakenly believe that the risk graph in the standard for safety-related parts of control systems,  EN ISO 13849-1 is “risk assessment” – it is not the primary risk assessment.

Risk assessment actually starts with the use of the standard “EN ISO 12100:2010 - Safety of machinery - General principles for design. Risk Assessment and Risk reduction.” It's only when you depend upon a safeguarding protective measure requiring control that the risk graph of EN ISO 13849-1 is used as a form of risk assessment specific to safety-related controls.

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Basic introduction to legislation affecting machines in UK

By Admin on 25/01/2012

Machine safety is enshrined in the European Machinery Directive, and its Essential Health and Safety Requirements (EHSRs). This short article introduces you to how this fits into UK law, who it affects and structure of the harmonised standards which can be used to provide "presumption of conformance" with the EHSRs.

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