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  • EN 60255-8:1998

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    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    Electrical relays - Part 8: Thermal electrical relays

    Available format(s): 

    Superseded date:  01-10-2013

    Language(s): 

    Published date:  13-01-1998

    Publisher:  European Committee for Standards - Electrical

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

    FOREWORD
    PREFACE
    SECTION ONE - GENERAL
    1 Scope and object
    2 Definitions
    SECTION TWO - REQUIREMENTS
    3 Standard values
    4 Accuracy
    SECTION THREE - TEST METHODS
    5 Tests related to operating characteristics and accuracy
    6 Tests for thermal requirements
    Figures
    Appendix A - Characteristic curves, cold curves
    Appendix B - Characteristic curves, hot curves
    Appendix C - Example for determining accuracy
    Annex ZA (normative) Normative references to international
                         publications with their corresponding
                         European publications

    Abstract - (Show below) - (Hide below)

    This edition applies to dependent specified time electrical measuring relays which protect equipment from electrical thermal damage by the measurement of current flowing in protected equipment. States the particular requirements for thermal electrical relays. Is to be read in conjunction with higher level documents in the EN 60255 series.

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    Committee CLC/TC 95X
    Document Type Standard
    Publisher European Committee for Standards - Electrical
    Status Superseded
    Superseded By

    Standards Referenced By This Book - (Show below) - (Hide below)

    I.S. EN 60694:1999 COMMON SPECIFICATIONS FOR HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR STANDARDS
    EN 60694:1996/A2:2001 COMMON SPECIFICATIONS FOR HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR STANDARDS
    BS EN 60255-151:2009 Measuring relays and protection equipment Functional requirements for over/under current protection
    BS EN 61347-2-1 : 2001 LAMP CONTROLGEAR - PART 2-1: PARTICULAR REQUIREMENTS FOR STARTING DEVICES (OTHER THAN GLOW STARTERS)
    I.S. EN 61347-2-1:2004 LAMP CONTROLGEAR - PART 2-1: PARTICULAR REQUIREMENTS FOR STARTING DEVICES (OTHER THAN GLOW STARTERS)
    BS EN 60470:2001 High-voltage alternating current contactors and contactor-based motor starters
    BS EN 60255-3:1998 Electrical relays Single input energizing quantity measuring relays with dependent or independent time
    BS EN 60694:1997 Common specifications for high-voltage switchgear and controlgear standards
    EN 60255-151:2009 Measuring relays and protection equipment - Part 151: Functional requirements for over/under current protection
    EN 61347-2-1:2001/A2:2014 LAMP CONTROLGEAR - PART 2-1: PARTICULAR REQUIREMENTS FOR STARTING DEVICES (OTHER THAN GLOW STARTERS) (IEC 61347-2-1:2000/A2:2013)

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

    EN 60255-6 : 94 AC 95 ELECTRICAL RELAYS - MEASURING RELAYS AND PROTECTION EQUIPMENT
    IEC 60255-6:1988 Electrical relays - Part 6: Measuring relays and protection equipment
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