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  • NFC 23 539 : 1981

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    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    ELECTRICAL APPARATUS FOR POTENTIALLY EXPLOSIVE ATMOSPHERES - INTRINSICALLY SAFE ELECTRICAL SYSTEMS "I"

    Available format(s): 

    Superseded date:  01-07-2005

    Language(s): 

    Published date:  12-01-2013

    Publisher:  Association Francaise de Normalisation

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    Document Type Standard
    Publisher Association Francaise de Normalisation
    Status Superseded
    Superseded By

    Standards Referenced By This Book - (Show below) - (Hide below)

    NF EN 50381 : 2004 TRANSPORTABLE VENTILATED ROOMS WITH OR WITHOUT AN INTERNAL SOURCE OF RELEASE
    NF EN 50020 : 2004 ELECTRICAL APPARATUS FOR POTENTIALLY EXPLOSIVE ATMOSPHERES - INTRINSIC SAFETY 'I'
    NF EN 50016 : 2004 ELECTRICAL APPARATUS FOR POTENTIALLY EXPLOSIVE ATMOSPHERES - PRESSURIZED APPARATUS 'P'
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