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    I.S. EN IEC 61557-12:2022

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    Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC - Equipment for testing, measuring or monitoring of protective measures - Part 12: Power metering and monitoring devices (PMD) (IEC 61557-12:2018)

    Available format(s):  Hardcopy, PDF

    Superseded date:  04-02-2022

    Language(s):  English

    Published date:  24-01-2022

    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 Terms, definitions and notations
    4 Requirements
    5 Marking and operating instructions
    6 Tests
    Annex A (informative) Metering, measuring and monitoring applications
    Annex C (informative) Convention about the sign of the power factor
    Annex D (normative) Definitions of minimum, maximum, peak and demand values
    Annex E (informative) Intrinsic uncertainty and operating uncertainty
    Annex F (informative) Recommended sensor classes for the different kinds of PMD
    Annex G (informative) Notion of measurement uncertainty
    Bibliography

    Abstract - (Show below) - (Hide below)

    This part of IEC 61557 specifies requirements for power metering and monitoring devices (PMD) that measure and monitor the electrical quantities within electrical distribution systems, and optionally other external signals.

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

    Committee IEC/TC 85
    Document Type Standard
    Product Note The date of any NSAI previous adoption may not match the date of its original CEN/CENELEC document.
    Publisher National Standards Authority of Ireland
    Status Superseded
    Superseded By
    Supersedes
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