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    I.S. EN 50303:2001

    Current The latest, up-to-date edition.

    GROUP 1, CATEGORY M1 EQUIPMENT INTENDED TO REMAIN FUNCTIONAL IN ATMOSPHERES ENDANGERED BY FIREDAMP AND/OR COAL DUST

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  01-01-2001

    Publisher:  National Standards Authority of Ireland

    For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
    Only cited Standards give presumption of conformance to New Approach Directives/Regulations.

    Dates of withdrawal of national standards are available from NSAI.

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    Table of Contents - (Show below) - (Hide below)

    Foreword
    Introduction
    1 Scope
    2 Normative references
    3 Definitions
    4 General
    5 Category M1 equipment having the requisite level of
          protection in the event of two faults occurring
          independently of each other
    6 Category M1 equipment having the requisite level of
          protection using a second independent means
    7 Requirements for Category M1 flammable gas detectors
          with hot wire or hot pellistor sensing heads
    8 Requirements for Category M1 systems
    9 Type testing
    10 Marking requirements
    11 Instructions

    Abstract - (Show below) - (Hide below)

    Covers the design, construction, testing and marking requirements for Group 1, Category M1 equipment intended to remain functional in underground parts of mines, as well as those parts of surface installations of such mines endangered by firedamp and/or coal dust clouds under normal atmospheric conditions of pressures ranging from 0,8 bar to 1,1 bar and temperatures ranging from -20 degree C to +60 degree C.

    General Product Information - (Show below) - (Hide below)

    Document Type Standard
    Publisher National Standards Authority of Ireland
    Status Current
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