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  • CEI EN 60255-149 : 2014

    Current The latest, up-to-date edition.

    MEASURING RELAYS AND PROTECTION EQUIPMENT - PART 149: FUNCTIONAL REQUIREMENTS FOR THERMAL ELECTRICAL RELAYS

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  01-01-2014

    Publisher:  Comitato Elettrotecnico Italiano

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    Table of Contents - (Show below) - (Hide below)

    FOREWORD
    1. Scope
    2. Normative references
    3. Terms and definitions
    4. Specification of the function
    5. Performance specification
    6. Functional test methodology
    7. Documentation requirements
    Annex A (informative) Simple first-order thermal
            model of electrical equipment
    Annex B (informative) Thermal electrical relays
            which use temperature as setting Parameters
    Bibliography
    Annex ZA (normative) - Normative references to
             international publications with their
             corresponding European publications

    Abstract - (Show below) - (Hide below)

    Describes the minimum requirements for thermal protection relays.

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

    Committee CT 94/95
    Development Note Classificazione CEI 95-24. Supersedes CEI EN 60255-8. (11/2014)
    Document Type Standard
    Publisher Comitato Elettrotecnico Italiano
    Status Current
    Supersedes

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

    IEC 60947-4-1:2009+AMD1:2012 CSV Low-voltage switchgear and controlgear - Part 4-1: Contactors and motor-starters - Electromechanical contactors and motor-starters
    EN 60085:2008 Electrical insulation - Thermal evaluation and designation
    EN 61850-7-4:2010 Communication networks and systems for power utility automation - Part 7-4: Basic communication structure - Compatible logical node classes and data object classes
    IEC 60085:2007 Electrical insulation - Thermal evaluation and designation
    EN 60255-1:2010 Measuring relays and protection equipment - Part 1: Common requirements
    IEC 61850-9-2:2011 Communication networks and systems for power utility automation - Part 9-2: Specific communication service mapping (SCSM) - Sampled values over ISO/IEC 8802-3
    IEC 60947-4-2:2011 Low-voltage switchgear and controlgear - Part 4-2: Contactors and motor-starters - AC semiconductor motor controllers and starters
    IEC 60255-1:1967 Electrical relays - Part 1: Instantaneous all-or-nothing relays
    IEC 61850-7-4:2010 Communication networks and systems for power utility automation - Part 7-4: Basic communication structure - Compatible logical node classes and data object classes
    IEEE C37.96-2012 IEEE Guide for AC Motor Protection
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