• EN 60255-8 : 1998

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

    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    Superseded date:  01-10-2013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)

    Applies to dependent specified time electrical measuring relays which protect equipment from electrical thermal damage by measuring current flowing in the protected equipment.

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

    Committee BTTF 63-5
    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    Status Superseded
    Superseded By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 - PART 3: 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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