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IEC 60079-29-3:2014

Explosive atmospheres - Part 29-3: Gas detectors - Guidance on functional safety of fixed gas detection systems

Edition date: 2014-03-27
In Force
Available languages: English, French, Spanish
Summary: IEC 60079-29-3:2014 gives guidance for the design and implementation of a fixed gas detection system, including associated and/or peripheral gas detection equipment, for the detection of flammable gases/vapours and oxygen when used in a safety-related application in accordance with IEC 61508 and IEC 61511. This International standard also applies to the detection of toxic gases. Other parts of this international standard and pertinent local, national and international standards separately specify the performance requirements of a gas detector and a gas detection control unit (logic solver). These standards are commonly known as Metrological Performance Standards and are concerned with the accuracy of the measured value, the overall system performance, but not the device or system integrity with respect to the safety function. This international standard applies to the integrity of the safety function. Keywords: fixed gas detection system, flammable gases/vapours and Oxygen, detection of toxic gases

This publication is to be read in conjunction with IEC 60079-0:2011, IEC 60079-29-1:2007, IEC 60079-29-2:2007 and IEC 60079-29-4:2009

L'IEC 60079-29-3:2014 donne des recommandations sur la conception et la mise en oeuvre d'un système fixe de détection de gaz, comprenant des équipements associés et/ou périphériques de détection de gaz, permettant de détecter des gaz/vapeurs inflammables et de l'oxygène dans le cadre d'une application relative à la sécurité conformément à l'IEC 61508 et à l'IEC 61511. La présente Norme internationale s'applique aussi à la détection des gaz toxiques. Les autres parties de la présente Norme internationale et les normes locales, nationales et internationales pertinentes spécifient séparément les exigences de performance d'un détecteur de gaz et d'une unité de commande de détection de gaz (unité logique). Ces normes sont généralement appelées Normes de Performances Métrologiques et traitent de la précision de la valeur mesurée, des performances globales du système, mais pas de l'intégrité du dispositif ou du système par rapport à la fonction de sécurité. La présente Norme internationale s'applique à l'intégrité de la fonction de sécurité. Mots clés: système fixe de détection de gaz, gaz/vapeurs inflammables et de l'oxygène, détection des gaz toxiques

Cette publication doit être lue conjointement avec la CEI 60079-0:2011, IEC 60079-29-1:2007, IEC 60079-29-2:2007 et IEC 60079-29-4:2009
ICS: 29.260.20-Electrical apparatus for explosive atmospheres
CTN: TC 31 - 1232

Otras Relaciones

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