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    I.S. EN 61643-331:2003

    Withdrawn A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

    COMPONENTS FOR LOW-VOLTAGE SURGE PROTECTIVE DEVICES - PART 331: SPECIFICATION FOR METAL OXIDE VARISTORS (MOV)

    Available format(s):  Hardcopy, PDF

    Withdrawn date:  11-01-2021

    Language(s):  English

    Published date:  01-01-2003

    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
    1 Scope
    2 Normative references
    3 Parametric terms, letter symbols and definitions
      3.1 Ratings
      3.2 Characteristics
      3.3 Circuit symbol
    4 Service conditions
      4.1 Normal service conditions
      4.2 Abnormal service conditions
    5 Basic function and MOV component description
    6 Identification
      6.1 Generalities
      6.2 Functional and constructive characteristics
      6.3 Manufacturing inspections
    7 Marking
    8 Testing and measuring methods
      8.1 Standard design test criteria
      8.2 Test conditions
      8.3 Ratings
      8.4 Electrical characteristics
      8.5 Dependability
    9 Fault and failure mode
      9.1 Degradation fault mode
      9.2 Fault-mode determination of rating test failures
    Annex A (normative) MOV testing for IEC 61643-1 surge
            protective devices
    Annex ZA (normative) Normative references to international
             publications with their corresponding European
             publications
    Bibliography

    Abstract - (Show below) - (Hide below)

    Applies for applications up to 1000 V a.c. or 1500 V d.c. in power line, or telecommunication, or signalling circuits.

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

    Development Note For CENELEC adoptions of IEC publications, please check www.iec.ch to be sure that you have any corrigenda that may apply. (01/2017)
    Document Type Standard
    Publisher National Standards Authority of Ireland
    Status Withdrawn

    Standards Referencing This Book - (Show below) - (Hide below)

    HD 323.2.20 : 200S3 BASIC ENVIRONMENTAL TESTING PROCEDURES - TESTS - TEST T - SOLDERING
    IEC 60068-1:2013 Environmental testing - Part 1: General and guidance
    IEC 60068-2-20:2008 Environmental testing - Part 2-20: Tests - Test T: Test methods for solderability and resistance to soldering heat of devices with leads
    EN 60068-1:2014 Environmental testing - Part 1: General and guidance
    IEC 61643-1:2005 Low-voltage surge protective devices - Part 1: Surge protective devices connected to low-voltage power distribution systems - Requirements and tests
    EN 60068-2-29:1993 Environmental testing - Part 2: Tests - Test Eb and guidance: Bump
    EN 60068-2-78:2013 Environmental testing - Part 2-78: Tests - Test Cab: Damp heat, steady state
    EN 60068-2-6:2008 Environmental testing - Part 2-6: Tests - Test Fc: Vibration (sinusoidal)
    IEC 60068-2-29:1987 Environmental testing. Part 2: Tests. Test Eb and guidance: Bump
    IEC 60068-2-14:2009 Environmental testing - Part 2-14: Tests - Test N: Change of temperature
    EN 60068-2-14:2009 Environmental testing - Part 2-14: Tests - Test N: Change of temperature
    IEC 60068-2-52:2017 Environmental testing - Part 2-52: Tests - Test Kb: Salt mist, cyclic (sodium chloride solution)
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