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    I.S. EN 61467:2008

    Current The latest, up-to-date edition.

    INSULATORS FOR OVERHEAD LINES - INSULATOR STRINGS AND SETS FOR LINES WITH A NOMINAL VOLTAGE GREATER THAN 1000 V - AC POWER ARC TESTS

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  01-01-2008

    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 and object
    2 Normative references
    3 Terms and definitions
    4 Symbols and abbreviations
    5 Characteristics of the test current
    6 Supply and return circuit conditions
    7 Tests on insulator sets
       7.1 General remarks
       7.2 Test arrangement
       7.3 Test current
       7.4 Supply and return circuit conditions
       7.5 Arc initiation
       7.6 Ambient conditions
       7.7 Test series and characteristics of the power arcs
    8 Tests on short strings
       8.1 General remark
       8.2 Test arrangement
       8.3 Test current
       8.4 Supply and return circuit conditions
       8.5 Arc initiation
       8.6 Ambient conditions
       8.7 Test series and characteristics of the power arcs
    9 Test report
    10 Evaluation of results
       10.1 General remark
       10.2 Visual examination
       10.3 Porcelain or glass insulators
       10.4 Composite insulators
       10.5 Acceptance criteria
    Annex A (normative) - Examples of test arrangements and
                          practical methods of tower
                          simulation (return circuit)
    Annex B (normative) - Determination of the r.m.s. value
                          of the current
    Annex C (informative) - No-load voltage of the power source
    Annex D (informative) - Power arcs on insulator sets and
                            their true simulation by appropriate
                            positioning of fusible wires
    Annex E (informative) - Wind velocity during power arc tests
    Annex F (informative) - Variation of the fault current magnitude
                            and reasons for the choice of the
                            prescribed test parameters
    Annex G (informative) - Recommendations for the test report
    Annex H (informative) - Sample of a power arc test report
    Bibliography
    Annex ZA (normative) - Normative references to international
                           publications with their corresponding
                           European publications

    Abstract - (Show below) - (Hide below)

    Applicable to insulator strings and sets comprising string insulator units of ceramic material, glass or composite material for use on a.c. overhead lines and traction lines with a nominal voltage above 1000 V and a frequency between 15 Hz and 100 Hz.

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    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 Current

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

    IEC 60826:2017 Design criteria of overhead transmission lines
    IEC 60050-471:2007 International Electrotechnical Vocabulary (IEV) - Part 471: Insulators
    IEC 60383-1:1993 Insulators for overhead lines with a nominal voltage above 1000 V - Part 1: Ceramic or glass insulator units for a.c. systems - Definitions, test methods and acceptance criteria
    IEC TR 60797:1984 Residual strength of string insulator units of glass or ceramic material for overhead lines after mechanical damage of the dielectric
    IEC 60383-2:1993 Insulators for overhead lines with a nominal voltage above 1000 V - Part 2: Insulator strings and insulator sets for a.c. systems - Definitions, test methods and acceptance criteria
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