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    • CAN/CSA-E79-6-95 (R1999)

    Codes & Standards - Purchase

    CAN/CSA-E79-6-95 (R1999)

    Electrical Apparatus for Explosive Gas Atmospheres - Part 6: Oil-Immersed Apparatus (Adopted IEC 79-6:1968, first edition) | Matériel électrique pour atmosphères explosives gazeuses - Partie 6: Matériel immergé dans l'huile (norme CEI 79-6:1968 adoptée, première édition)
    SKU: 2410389 Published by CSA Group Publication Year 1995 Reaffirmed in 1999 18 pages Withdrawn

    Product Details

    • Preface/Scope
    Scope

    1.1  
    This Recommendation covers the requirements for electrical apparatus or for parts of electrical apparatus which are intended to be made safe by oil-immersion in the sense that flammable gases or vapours above the oil or outside the enclosure will not be ignited.

    This Recommendation prescribes tests to be applied to prove that the requirements have been complied with.

    Note: With regard to this Recommendation, the following definition of oil applies: a mineral oil with appropriate electrical insulation and/or arc extinction properties.

    1.2  This Recommendation assumes:

    1.2.1  
    That, with regard to rating, performance and other requirements, the apparatus complies with the appropriate IEC or national specification or with the requirements of the competent national authority concerned.

    1.2.2  
    That the apparatus to which it applies will be properly installed and adequately maintained, and that it will be used under such conditions that its rating is not exceeded.

    For example, for motor starters and control gear, the current under starting and stalling conditions should not exceed the rating specified in Sub-clause 3.1.1.

    1.2.3  
    That the electrical circuit with which the apparatus is associated will include such automatic devices as may be necessary to protect the apparatus from damage in the event of an electrical defect.

    1.2.4  
    That oil-immersed apparatus will not be moved when in service.

    1.2.5  
    That oil-immersed apparatus will be erected in a sufficiently horizontal position, and that during service this position will be checked regularly. /

    Domaine d'application

    1.1  
    La présente recommandation concerne les prescriptions relatives au matériel ou parties de matériel dits de sécurité par immersion dans l'huile, en ce sens que des gaz ou vapeurs inflammabl es se trouvant au-dessus du niveau d'huile et à l'extérieur de l'enveloppe ne seront pas enflammés.
    Cette recommandation prescrit les essais à effectuer pour prouver que les exigences ont été respectées.

    Note. La définition du terme huile, en rapport avec cette recommandation, est la suivante: «une huile minérale possédant des propriétés adéquates d'isolation électrique et/ou d'extinction d'arcs électriques».

    1.2  Cette recommandation implique:

    1.2.1
    Que le matériel, en égard au régime nominal, aux performan ces et autres exigences, est conforme aux spécifications appropriées de la CEI ou nationales ou bien qu'il répond aux exigences de l'autorité nationale compétente.

    1.2.2
    Que le matériel pour lequel ces règles sont applicables sera convenablement installé et entretenu, et qu'il sera utilisé dans des conditions telles que les caractéristiques normales ne seront pas dépassées.Le courant de démarrage et de calage pour les démarreurs et autres appareils de commande ne devrait pas dépasser la p erformance spécifiée au paragraphe 3.1.1.

    1.2.3  
    Que le circuit électrique, dont le matériel fait partie, sera muni de dispositifs automatiques présumés indispensables pour protéger le matériel contre les dégâts qu'il pourrait subir en cas de défaut électrique.

    1.2.4  
    Que le matériel à bain d'huile ne sera pas déplacé en service.

    1.2.5  
    Que le matériel à bain d'huile sera monté en position suffisamment horizontale, et que cette disposition sera c ontrôlée durant le service.
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