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    • CAN/CSA-C22.2 NO. 60079-11:11

    Codes & Standards - Purchase

    CAN/CSA-C22.2 NO. 60079-11:11

    Explosive atmospheres - Part 11: Equipment protection by intrinsic safety "i" (Adopted IEC 60079-11:2006, fifth edition, 2006-07, with Canadian deviations)
    SKU: 2421481 Published by CSA Group Publication Year 2011 268 pages Withdrawn

    Product Details

    • Preface/Scope
    Preface

    This is the first edition of CAN/CSA-C22.2 No. 60079-11, Explosive atmospheres - Part 11: Equipment protection by intrinsic safety i, which is an adoption, with Canadian deviations, of the identically titled IEC (International Electrotechnical Commission) Standard 60079-11 (fifth edition, 2006-07). It replaces the previous edition, published in 2002 as CAN/CSA-E60079-11, Electrical apparatus for explosive gas atmospheres - Part 11: Intrinsic safety i (adopted CEI/IEC 60079-11:1999). 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 specifies the construction and testing of intrinsically safe apparatus intended for use in an explosive gas atmosphere and for associated apparatus, which is intended for connection to intrinsically safe circuits which enter such atmospheres.

    This type of protection is applicable to electrical apparatus in which the electrical circuits themselves are incapable of causing an explosion in the surrounding explosive atmospheres.

    This Standard is also applicable to electrical apparatus or parts of electrical apparatus located outside the explosive gas atmosphere or protected by another type of protection listed in IEC 60079-0, where the intrinsic safety of the electrical circuits in the explosive gas atmosphere may depend upon the design and construction of such electrical apparatus or parts of such electrical apparatus. The electrical circuits exposed to the explosive gas atmosphere are evaluated for use in such an atmosphere by applying this standard.

    The requirements for intrinsically safe systems are provided in IEC 60079-25. The requirements for intrinsically safe concepts for fieldbus are provided in IEC 60079-27.

    This Standard supplements and modifies the general requirements of IEC 60079-0, except as indicated in Table 1. Where a requirement of this standard conflicts with a requirement of IEC 60079-0, the requirements of this standard shall take precedence.

    If associated apparatus is placed in the explosive gas atmosphere, it must be protected by an appropriate type of protection listed in IEC 60079-0, and then the requirements of that method of protection together with the relevant parts of IEC 60079-0 also apply to the associated apparatus.

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

    Préface

    Ce document constitue la première Ă©dition de la CAN/CSA-C22.2 nº 60079-11, Atmosphères explosives - Partie 11 : Protection de l'Ă©quipement par sĂ©curitĂ© intrinsèque «i». Il s'agit de l'adoption, avec exigencies propres au Canada, de la norme CEI (Commission Électrotechnique Internationale) 60079-11 (cinquième Ă©dition, 2006-07) qui porte le mĂªme titre. Cette norme remplace l'Ă©dition prĂ©cĂ©dente publiĂ©e en 2002 qui portait la dĂ©signation CAN/CSA-E60079-11, MatĂ©riel Ă©lectrique pour atmosphères explosives gazeuses - Partie 11 : SĂ©curitĂ© intrinsèque «i» (norme CEI/IEC 60079-11:1999 adoptĂ©e). Cette norme fait partie d'une sĂ©rie de normes publiĂ©es par CSA lesquelles 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 prĂ©sente partie de la CEI 60079 spĂ©cifie la construction et les essais pour le materiel Ă©lectrique de sĂ©curitĂ© intrinsèque destinĂ© Ă  Ăªtre utilisĂ© dans les atmosphères explosives et pour le matĂ©riel Ă©lectrique associĂ©, qui est destinĂ© Ă  Ăªtre reliĂ© Ă  des circuits de sĂ©curitĂ©intrinsèque qui entrent dans de telles atmosphères.

    Ce type de protection s'applique aux matĂ©riels Ă©lectriques dont les circuits sont eux-mĂªmes incapables de provoquer l'explosion de l'atmosphère environnante.

    La présente norme s'applique également aux matériels électriques ou aux parties de matériels électriques situés hors de l'atmosphère potentiellement explosive ou protégés par un autre mode de protection cité dans la CEI 60079-0, lorsque la sécurité intrinsèque des circuits électriques situés dans l'atmosphère explosive peut dépendre de la conception et de la construction de ces matériels électriques ou de ces parties de matériels électriques. Les circuits électriques exposés à une atmosphère explosive gazeuse sont évalués en vue de leur emploi dans une telle atmosphère en appliquant la présente norme.

    Les exigences pour les systèmes de sécurité intrinsèque sont données dans la CEI 60079-25. Les exigences pour les concepts de sécurité intrinsèque pour les bus de terrain sont données dans la CEI 60079-27.

    Cette norme complète et modifie les exigences générales de la CEI 60079-0, à l'exception de ce qui est indiqué au Tableau 1. Lorsqu'une exigence de cette norme entre en conflit avec une exigence de la CEI 60079-0, l'exigence de la présente norme prévaut.

    Si un matériel associé est placé dans une atmosphère explosive, il faut qu'il soit protégé par un mode de protection approprié cité dans la CEI 60079-0, et les exigences de ce mode de protection ainsi que les parties applicables de la CEI 60079-0 s'appliquent aussi au materiel associé.
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