• I.S. EN 50021:2001

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.


    Available format(s):  Hardcopy, PDF

    Superseded date:  20-10-2003

    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)

    Section One: General
    1 Scope
    2 Normative references
    3 Definitions
    4 General requirements
    Section Two: Requirements for all electrical apparatus
    5 General
    6 Construction
    7 Connection facilities and wiring
    8 Clearances, creepage distances and separations
    9 Electric strength
    Section Three: Supplementary requirements for non-sparking
    10 Rotating machines
    11 Fuses and fuse assemblies
    12 Luminaires
    13 Instruments and low-power apparatus
    14 Current transformers
    15 Plugs and sockets
    16 Cells and batteries
    Section Four: Supplementary requirements for apparatus
    producing arcs, sparks or hot surfaces
    17 General
    18 Enclosed-break devices and non-incendive components
    19 Hermetically sealed device
    20 Sealed device or encapsulated device
    21 Energy-limited apparatus and circuits
    22 Restricted-breathing enclosures
    23 Simplified pressurization
    Section Five: Verification and testing
    24 General
    25 Documents
    26 Type tests
    27 Routine verifications and tests
    Section Six: Marking and documentation
    28 Marking
    29 Documentation
    30 Manufacturer's responsibility
    Annex A (normative) Assessment of energy-limited
    apparatus and circuits by reference curves and tables

    Abstract - (Show below) - (Hide below)

    Gives requirements for the construction, testing and marking for Group 2 electrical apparatus with type of protection "n", intended for use only in areas where explosive atmospheres of gas, vapour and mist are unlikely to occur or if they do occur, are likely to do so infrequently or for a short period only.

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

    Document Type Standard
    Publisher National Standards Authority of Ireland
    Status Superseded
    Superseded By
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