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    • CAN/CSA-C22.2 NO. 60079-26:16 (R2021)

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    CAN/CSA-C22.2 NO. 60079-26:16 (R2021)

    Explosive atmospheres - Part 26: Equipment with equipment protection level (EPL) Ga (Adopted IEC 60079-26:2014, third edition, 2014-10, with Canadian deviations) | Atmosphères explosives - Partie 26 : Matériel d’un niveau de protection du matériel (EPL) Ga (norme IEC 60079-26:2014 adoptée, troisième édition, 2014-10, avec exigences propres au Canada)
    SKU: 2424466 Published by CSA Group Publication Year 2016 Reaffirmed in 2021 65 pages

    Product Details

    • Preface/Scope
    • Updates

    CSA Preface


    This is the first edition of CAN/CSA-C22.2 No. 60079-26, Explosive atmospheres – Part 26: Equipment with Equipment Protection Level (EPL) Ga, which is an adoption, with Canadian deviations, of the identically titled IEC (International Electrotechnical Commission) Standard 60079-26 (third edition, 2014-10). It is one in a series of Standards issued by CSA Group under Part II of the Canadian Electrical Code.


    For brevity, this Standard will be referred to as CAN/CSA-C22.2 No. 60079-26 throughout.


    This Standard is intended to be used in conjunction with CAN/CSA-C22.2 No. 60079-0, Explosive atmospheres — Part 0: Equipment — General requirements.


    This Standard has been developed in compliance with Standards Council of Canada requirements for National Standards of Canada. It has been published as a National Standard of Canada by CSA Group.


    Scope


    This part of IEC 60079 specifies alternative requirements for construction, test and marking for electrical equipment that provides Equipment Protection Level (EPL) Ga when single standardised Types of Protection (e.g. Ex ia , Ex ma, Ex da) cannot be applied. This standard also applies to equipment mounted across a boundary where different Equipment Protection Levels may be required.


    EXAMPLE: Equipment installed in the wall of a storage vessel containing Zone 0 (requiring EPL Ga) inside an area defined as Zone 1 (requiring EPL Gb).


    This electrical equipment, within the operational parameters specified by the manufacturer, ensures a very high Level of Protection that includes rare malfunctions related to the equipment or two malfunctions occurring independently of each other.


    NOTE A malfunction may result from a failure of the component parts of the electrical equipment or from anticipated externally applied influences. Two independent malfunctions which may occur more frequently and which, separately, would not create an ignition hazard but which, in combination, could create a potential ignition hazard, are regarded as occurring together to form a rare malfunction.


    This standard supplements and modifies the general requirements of IEC 60079-0. Where a requirement of this standard conflicts with a requirement of IEC 60079-0, the requirement of this standard takes precedence.


    --------------------------------------------------------------------------------------------------------------------------------


    Préface CSA


    Ce document constitue la première édition de la CAN/CSA-C22.2 nº 60079-26, Atmosphères explosives — Partie 26 : Matériel d’un niveau de protection du matériel (EPL) Ga. Il s’agit de l’adoption, avec les exigences propres au Canada, de la norme IEC (Commission Électrotechnique Internationale) 60079-26 (troisième édition, 2014-10) qui porte le même titre. Il fait partie d’une série de normes publiées par le Groupe CSA qui constituent le Code canadien de l’électricité, Deuxième partie.


    Par souci de brièveté, tout au long de ce document, il sera appelé «CAN/CSA-C22.2 nº 60079-26».


    Cette norme est conçue pour être utilisée avec la CAN/CSA-C22.2 nº 60079-0, Atmosphères explosives — Partie 0 : Matériel — Exigences générales.


    Cette norme a été élaborée conformément aux exigences du Conseil canadien des normes concernant les Normes nationales du Canada. Cette norme a été publiée en tant que Norme nationale du Canada par Groupe CSA.


    Domaine d'application


    La présente partie de l'IEC 60079 spécifie les exigences alternatives relatives à la construction, aux essais et au marquage du matériel électrique fournissant le niveau de protection du matériel (EPL, Equipment Protection Level) Ga lorsque des types normalisés uniques de Protection (comme par ex. Ex ia , Ex ma, Ex da) ne peuvent pas être appliqués. La présente norme s’applique au matériel installé en chevauchement sur des emplacements pour lesquels différents niveaux de protection du matériel peuvent être exigés.


    EXEMPLE: Matériel installé dans la cloison d'un conteneur de stockage contenant une Zone 0 (exigeant l'EPL Ga) dans un emplacement défini comme étant une Zone 1 (exigeant l'EPL Gb).


    Ce matériel électrique assure, dans les limites des paramètres de fonctionnement spécifiés par le constructeur, un très haut niveau de protection prenant en compte le cas de rares dysfonctionnements liés au matériel, ou d’apparition simultanée de deux dysfonctionnements indépendants l’un de l’autre.


    NOTE Un dysfonctionnement peut résulter d’une défaillance d'un composant du matériel électrique ou d’une influence externe prévisible. Deux dysfonctionnements indépendants qui peuvent apparaître plus fréquemment et qui, séparément, ne créeraient pas de risque d’allumage, mais qui, ensemble, pourraient créer un risque d’allumage, sont considérés dans leur conjonction comme formant un dysfonctionnement rare.


    La présente norme complète et modifie les exigences générales de l'IEC 60079-0. Lorsqu'une exigence de la présente norme entre en contradiction avec une exigence de l'IEC 60079-0, l’exigence de la présente norme prévaut.

    An update to this product is available.


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