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    I.S. EN 60255-5:2001

    Withdrawn A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

    ELECTRICAL RELAYS - INSULATION COORDINATION FOR MEASURING RELAYS AND PROTECTION EQUIPMENT - REQUIREMENTS AND TESTS

    Available format(s):  Hardcopy, PDF

    Withdrawn date:  08-04-2014

    Language(s):  English

    Published date:  22-06-2001

    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)

    INTRODUCTION
    1 Scope and object
    2 Normative references
    3 Definitions
    4 Insulation coordination
       4.1 Basic principles
       4.2 Voltages and voltage ratings
       4.3 Time under voltage stress
       4.4 Pollution
       4.5 Information to be found on the relay or in the
           operating structures
       4.6 Insulation material
    5 Dimensioning requirements and rules
       5.1 Dimensioning of clearances
       5.2 Dimensioning of creepage distances
       5.3 Requirements for design of solid insulation
    6 Tests and measurements
       6.1 Tests
       6.2 Measurements
    Annex A (informative) Nominal voltages of supply systems
    Annex B (informative) Altitude correction factors
    Annex C (informative) Guidance for impulse voltage tests
    Annex D (informative) Measurement of creepage distances and
             clearances
    Annex ZA (normative) Normative references to international
             publications with their corresponding European
             publications

    Abstract - (Show below) - (Hide below)

    Covers general requirements for the insulation coordination of measuring relays and protection equipment. Also covers guidance for the selection of clearances and creepage distances and other aspects related to the insulation of measuring relays and protection equipment and describes requirements for voltage tests and insulation resistance measurement.

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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 Withdrawn
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