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    • CAN/CSA-C22.2 NO. 60079-31:12

    Codes & Standards - Purchase

    CAN/CSA-C22.2 NO. 60079-31:12

    Explosive atmospheres - Part 31: Equipment dust ignition protection by enclosure "t" (Adopted IEC 60079-31:2008, first edition, 2008-11, with Canadian deviations)
    SKU: 2421657 Published by CSA Group Publication Year 2012 50 pages Withdrawn

    Product Details

    • Preface/Scope
    Preface

    This is the first edition of CAN/CSA-C22.2 No. 60079-31, Explosive atmospheres - Part 31: Equipment dust ignition protection by enclosure t, which is an adoption, with Canadian deviations, of the identically titled IEC (International Electrotechnical Commission) Standard 60079-31 (first edition, 2008-11). This Standard replaces CAN/CSA-E61241-1-1:02, Electrical apparatus for use in the presence of combustible dust - Part 1-1: Electrical apparatus protected by enclosures and surface temperature limitation - Specification for apparatus (adopted IEC 61241-1-1:1999). It is one in a series of Standards issued by CSA under Part II of the Canadian Electrical Code.

    This Standard is considered suitable for use for conformity assessment within the stated scope of the Standard.

    Scope

    This part of IEC 60079 is applicable to electrical equipment protected by enclosure and surface temperature limitation for use in explosive dust atmospheres. It specifies requirements for design, construction and testing of electrical equipment.

    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 shall take precedence.

    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 apply to electrical equipment intended for use in underground parts of mines as well as those parts of surface installations of such mines endangered by firedamp and/or combustible dust.

    This Standard does not take account of any risk due to an emission of flammable or toxic gas from the dust.

    NOTE 1 The application of electrical equipment in atmospheres, which may contain combustible dust as well as explosive gas, whether simultaneously or separately, may require additional protective measures.

    NOTE 2 Where the equipment has to meet other environmental conditions, for example, protection against ingress of water and resistance to corrosion, additional methods of protection may be necessary. The method used should not adversely affect the integrity of the enclosure.

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

    Préface

    Ce document constitue la première Ă©dition de la CAN/CSA-C22.2 nº 60079-31, Atmosphères explosives - Partie 31 : Protection du matĂ©riel contre l'inflammation des poussières par enveloppe «t». Il s'agit de l'adoption, avec exigences propres au Canada, de la norme CEI (Commission Électrotechnique Internationale) 60079-31 (première Ă©dition, 2008-11). Cette norme remplace la CAN/CSA-E61241-1-1:02, Electrical apparatus for use in the presence of combustible dust - Part 1-1: Electrical apparatus protected by enclosures and surface temperature limitation - Specification for apparatus (norme CEI 61241-1-1:1999 adoptĂ©e). Elle fait partie d'une sĂ©rie de normes publiĂ©es par la CSA qui constituent le Code canadien de l'Ă©lectricitĂ©, Deuxième partie.

    Cette norme est jugée convenable à l'évaluation de la conformité selon le domaine d'application établi dans la norme.

    Domaine d'application

    La présente partie de la CEI 60079 est applicable au matériel électrique protégé par enveloppe et limitation de la température de surface, pour une utilisation en atmosphère de poussière explosive. Elle spécifie les exigences de conception, de construction et d'essai pour le matériel électrique.

    La présente norme complète et modifie les exigences générales de la CEI 60079-0. Lorsqu'une exigence de la présente norme est en conflit avec une exigence de la CEI 60079- 0, l'exigence de la présente norme prévaut.

    La présente norme ne s'applique pas aux poussières d'explosifs qui ne nécessitent pas l'oxygène de l'air pour leur combustion, ni aux substances pyrotechniques.

    La prĂ©sente norme ne s'applique pas au matĂ©riel Ă©lectrique destinĂ© Ă  une utilisation dans les parties souterraines des mines ni aux parties des installations de surface des mines oĂ¹ il existe des risques de grisou et/ou de poussières combustibles.

    La présente norme ne prend en compte aucun risque résultant d'une émission de gaz inflammable ou toxique provenant de la poussière.

    NOTE 1 L'utilisation d'un matériel électrique dans des atmosphères pouvant contenir de la poussière combustible et/ou un gaz explosif, que ce soit simultanément ou séparément, peut requérir des mesures de protection complémentaires.

    NOTE 2 Lorsqu'il faut qu'un matĂ©riel soit adaptĂ© Ă  d'autres conditions environnementales, par exemple la protection contre la pĂ©nĂ©tration de l'eau ou la rĂ©sistance Ă  la corrosion, des mĂ©thodes de protection complĂ©mentaires peuvent Ăªtre nĂ©cessaires. Il convient que la mĂ©thode utilisĂ©e ne dĂ©grade pas l'intĂ©gritĂ© de l'enveloppe.
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