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    • CAN/CSA-C22.2 NO. 60079-18:16 (R2021)

    Codes & Standards - Purchase

    CAN/CSA-C22.2 NO. 60079-18:16 (R2021)

    Explosive atmospheres - Part 18: Equipment protection by encapsulation "m" (Adopted IEC 60079-18:2014, fourth edition, 2014-12, with Canadian deviations)
    SKU: 2424557 Published by CSA Group Publication Year 2016 Reaffirmed in 2021 101 pages

    Product Details

    • Preface/Scope

    CSA Preface


    This is the second edition of CAN/CSA-C22.2 No. 60079-18, Explosive atmospheres — Part 18: Equipment protection by encapsulation m, which is an adoption, with Canadian deviations, of the identically titled IEC (International Electrotechnical Commission) Standard 60079-18 (fourth edition, 2014-12). It supersedes the previous edition published in 2012 as CAN/CSA-C22.2 No. 60079-18 (adopted IEC 60079-18:2009). 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. 60079-18 throughout.


    Changes in this edition include the following:


    a) elimination of deviations that are no longer necessary due to updates to CSA C22.1, Canadian Electrical Code, Part I;


    b) additional requirements added for cells or batteries;


    c) dust requirements; and


    d) determination of test temperature.


    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 gives the specific requirements for the construction, testing and marking of electrical equipment, parts of electrical equipment and Ex components with the type of protection encapsulation m intended for use in explosive gas atmospheres or explosive dust atmospheres.


    This part applies only for encapsulated electrical equipment, encapsulated parts of electrical equipment and encapsulated Ex components (hereinafter always referred to as m equipment) where the rated voltage does not exceed 11 kV.


    The application of electrical equipment in atmospheres, which may contain explosive gas as well as combustible dust simultaneously, may require additional protective measures.


    This standard does not apply to dusts of explosives, which do not require atmospheric oxygen for combustion, or to pyrophoric substances This standard does not take account of any risk due to an emission of flammable or toxic gas from the dust.


    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 deuxième Ă©dition de la CAN/CSA-C22.2 nº 60079-18, Atmosphères explosives —Partie 18 : Protection du matĂ©riel par encapsulage «m». Il s’agit de l’adoption, avec exigences propres au Canada, de la norme IEC (Commission Électrotechnique Internationale) 60079-18 (quatrième Ă©dition, 2014-12) qui porte le mĂªme titre. Cette norme remplace l’édition antĂ©rieure publiĂ©e en 2012 qui portait la dĂ©signation CAN/CSA-C22.2 nº 60079-18 (norme IEC 60079-18:2009 adoptĂ©e). Il fait partie d’une sĂ©rie de normes publiĂ©es par le Groupe CSA qui constituent le Code canadien de l'Ă©lectricitĂ©, Deuxième partie.


    Par souci de brièvetĂ©, tout au long de ce document, il sera appelĂ© «CAN/CSA-C22.2 nº 60079-18».


    Les changements apportés à cette édition comprennent :


    a) l’élimination des déviations qui ne sont plus nécessaires en raison des mises à jour à la CSA C22.1, Code canadien de l’électricité, Première partie ;


    b) l’ajout d’exigences supplémentaires pour les cellules et les piles ;


    c) les exigences relatives à la poussière ; et


    d) la détermination de la température d’essai.


    Cette norme est conçue pour Ăªtre utilisĂ©e de concert avec la CAN/CSA-C22.2 nº 60079-0, Atmosphères explosives — Partie 0 : MatĂ©riel — Exigences gĂ©nĂ©rales. Cette norme a Ă©tĂ© Ă©laborĂ©e conformĂ©ment aux exigences du Conseil canadien des normes concernant les Normes nationales du Canada. Cette norme a Ă©tĂ© publiĂ©e en tant que Norme nationale du Canada par Groupe CSA.


    Domaine d’application


    La présente partie de l’IEC 60079 définit les exigences spécifiques à la construction, aux essais et au marquage des matériels électriques, des parties de matériels électriques et des composants Ex protégés par encapsulage de type m et destinés à une utilisation dans les atmosphères explosives gazeuses ou les atmosphères explosives poussiéreuses.


    La présente partie ne s’applique qu’aux matériels électriques protégés par encapsulage, aux parties de matériel électrique protégées par encapsulage et aux composants Ex protégés par encapsulage (ci-après toujours dénommés matériel m) pour lesquels la tension assignée n’excède pas 11 kV.


    L’utilisation du matériel électrique en atmosphère pouvant contenir simultanément du gaz explosif et des poussières combustibles peut nécessiter des mesures de protection supplémentaires.


    La présente Norme ne s’applique pas aux poussières d’explosifs qui n’exigent pas d’oxygène de l’air pour leur combustion ni aux substances pyrophoriques.


    La présente Norme ne tient pas compte des risques, quels qu'ils soient, résultant d’une émission de gaz inflammable ou toxique provenant de la poussière.


    La présente Norme complète et modifie les exigences générales de l’IEC 60079-0. Si une exigence de la présente Norme est en conflit avec une exigence de l’IEC 60079-0, l'exigence de la présente Norme a préséance.

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