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  • IEC 60989:1991

    View superseded by
    Withdrawn A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
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    Separating transformers, autotransformers, variable transformersand reactors.

    Available format(s):  Hardcopy, PDF, PDF 3 Users, PDF 5 Users, PDF 9 Users

    Withdrawn date:  31-12-2021

    Language(s):  English - French

    Published date:  18-04-1991

    Publisher:  International Electrotechnical Committee

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

    Foreword
    Preface
    General Plan of the Standard
    Chapter I: General Requirements
    1. Scope and object
    2. Definitions
    3. General requirements
    4. General notes on tests
    5. Rating
    6. Classification
    7. Marking
    8. Protection against electric shock
    9. Change of input voltage setting
    10. Output voltage and output current under load
    11. No-load output voltage
    12. Short-circuit voltage
    13. Heating
    14. Short-circuit and overload protection
    15. Mechanical strength
    16. Protection against harmful ingress of water and moisture
    17. Insulation resistance and electric strength
    18. Construction
    19. Components
    20. Internal wiring
    21. Supply connection and external flexible cables and cords
    22. Terminals for external conductors
    23. Provision for protective earthing
    24. Screws and connections
    25. Creepage distances and clearances
    26. Resistance to heat, abnormal heat, fire and tracking
    27. Resistance to rusting
    Appendix I-A - Production tests
    Appendix I-B - Void
    Appendix I-C - Examples of points of application of test
    voltages
    Appendix I-D - Measurement of creepage distances and
    clearances
    Appendix I-E - Examples of points of measurement of
    creepage distances and clearances
    Chapter II: Particular Requirements for Special Separating
    Transformers
    Section One - Control Transformers
    1. Scope and Object
    2. Definitions
    7. Marking
    9. Change of input voltage setting
    10. Output voltage and output current under load
    11. No-load output voltage
    13. Heating
    17. Insulation resistance and electric strength
    25. Creepage distances and clearances
    Section Two - Ignition Transformers for Gas and Oil Burners
    1. Scope and object
    2. Definitions
    4. General notes on tests
    5. Rating
    6. Classification
    7. Marking
    8. Protection against electric shock
    10. Output voltage and output current under load
    11. No-load output voltage
    13. Heating
    14. Short-circuit and overload protection
    16. Protection against harmful ingress of water and moisture
    17. Insulation resistance and electric strength
    18. Construction
    25. Creepage distances and clearances
    Appendix II-B - Void
    Appendix II-B - Measurement of leakage current for ignition
    transformers for gas and oil burners
    Section Three - High Insulation Level Transformers and
    Separating Transformers with Working Voltage Above 1 000 V
    1. Scope and object
    2. Definitions
    7. Marking
    10. Output voltage and output current under load
    11. No-load output voltage
    17. Insulation resistance and electric strength
    25. Creepage distances and clearances
    Section Four - Stray Field Transformers
    Under consideration
    Section Five - Stabilizing Transformers (Current and Voltage
    Types)
    Under consideration
    Chapter III: Particular Requirements for Autotransformers
    1. Scope and object
    2. Definitions
    5. Rating
    7. Marking
    8. Protection against electric shock
    10. Output voltage and output current under load
    17. Insulation resistance and electrical strength
    25. Creepage and clearance distances
    26. Resistance to heat, abnormal heat, fire and tracking
    Appendix III-A - Production tests
    Chapter IV: Supplementary Specifications for Variable
    Transformers
    1. Scope and object
    2. Definitions
    6. Classification
    7. Marking
    8. Protection against electric shock
    10. Output voltage and output current under load
    11. No-load output voltage
    13. Heating
    15. Mechanical strength
    18. Construction
    21. Supply connection and external flexible cables and cords
    25. Creepage distances and clearances
    Appendix IV-A - Tests during production
    Chapter V: Supplementary Particular Requirements for Reactors
    Under consideration
    Figures

    Abstract - (Show below) - (Hide below)

    Applicable to stationary or portable, single-phase or polyphase, air-cooled separating transformers, autotransformers, variable transformers and small reactors, associated or not, having a rated supply voltage not exceeding 1 000 V a.c., a rated no-load or load output voltage not exceeding 15 kV a.c. or d.c. and a rated output not exceeding: - single-phase transformers: 1 kVA - single-phase reactors: 2 kVAR - polyphase transformers: 5 kVA - polyphase reactors: 10 kVAR. Has the status of a group safety publication.

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

    Development Note Also numbered as BS 7452(1991) (10/2005) Stability Date: 2017. (09/2017)
    Document Type Standard
    Publisher International Electrotechnical Committee
    Status Withdrawn
    Superseded By

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

    IEC 61643-352:2018 Components for low-voltage surge protection - Part 352: Selection and application principles for telecommunications and signalling network surge isolation transformers (SITs)
    CSA C22.2 No. 60730-2-5 : 2014 AUTOMATIC ELECTRICAL CONTROLS FOR HOUSEHOLD AND SIMILAR USE - PART 2-5: PARTICULAR REQUIREMENTS FOR AUTOMATIC ELECTRICAL BURNER CONTROL SYSTEMS
    CSA C22.2 No. 60601.1.1 : 2002 MEDICAL ELECTRICAL EQUIPMENT - PART 1-1: GENERAL REQUIREMENTS FOR SAFETY - COLLATERAL STANDARD: SAFETY REQUIREMENTS FOR MEDICAL ELECTRICAL SYSTEMS
    CSA C22.2 No. 60601.1.1 : 2002 : R2006 MEDICAL ELECTRICAL EQUIPMENT - PART 1-1: GENERAL REQUIREMENTS FOR SAFETY - COLLATERAL STANDARD: SAFETY REQUIREMENTS FOR MEDICAL ELECTRICAL SYSTEMS
    UNE-EN 60335-2-25:2012 Household and similar electrical appliances - Safety - Part 2-25: Particular requirements for microwave ovens, including combination microwave ovens
    14/30297601 DC : 0 BS EN 61643-351 - COMPONENTS FOR LOW-VOLTAGE SURGE PROTECTIVE DEVICES - PART 351: PERFORMANCE REQUIREMENTS AND TEST CIRCUITS FOR LIGHTNING ISOLATION TRANSFORMERS (LIT)
    EN 61643-351:2017 Components for low-voltage surge protective devices - Part 351: Performance requirements and test methods for telecommunications and signalling network surge isolation transformers (SIT)
    BS EN 60335-2-25 : 2012 HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES - SAFETY - PART 2-25: PARTICULAR REQUIREMENTS FOR MICROWAVE OVENS, INCLUDING COMBINATION MICROWAVE OVENS
    ANSI Z21.20 : 2005 : INC : ADD A : 2008 : R2012 AUTOMATIC ELECTRICAL CONTROLS FOR HOUSEHOLD AND SIMILAR USE - PART 2-5: PARTICULAR REQUIREMENTS FOR AUTOMATIC ELECTRICAL BURNER CONTROL SYSTEMS
    ANSI Z21.20 :2005 AUTOMATIC ELECTRICAL CONTROLS FOR HOUSEHOLD AND SIMILAR USE - PART 2-5: PARTICULAR REQUIREMENTS FOR AUTOMATIC ELECTRICAL BURNER CONTROL SYSTEMS
    NF EN 60601-1-1 : 2001 MEDICAL ELECTRICAL EQUIPMENT - PART 1-1: GENERAL REQUIREMENTS FOR SAFETY - COLLATERAL STANDARD: SAFETY REQUIREMENTS FOR MEDICAL ELECTRICAL SYSTEMS
    I.S. EN IEC 61643-352:2018 COMPONENTS FOR LOW-VOLTAGE SURGE PROTECTION - PART 352: SELECTI AND APPLICATION PRINCIPLES FOR TELECOMMUNICATIONS AND SIGNALLIN NETWORK SURGE ISOLATION TRANSFORMERS (SITS)
    IEC 60598-1:2014+AMD1:2017 CSV Luminaires - Part 1: General requirements and tests
    CSA C22.2 No. 601.1.1 : 2000 MEDICAL ELECTRICAL EQUIPMENT - PART 1: GENERAL REQUIREMENTS FOR SAFETY - 1: COLLATERAL STANDARD: SAFETY REQUIREMENTS FOR MEDICAL ELECTRICAL SYSTEMS
    IEC 60335-2-25:2010+AMD1:2014+AMD2:2015 CSV Household and similar electrical appliances - Safety - Part 2-25: Particular requirements for microwave ovens, including combinationmicrowave ovens
    EN 60730-2-5:2015 Automatic electrical controls - Part 2-5: Particular requirements for automatic electrical burner control systems
    UNE-EN 60730-2-5:2015 Automatic electrical controls - Part 2-5: Particular requirements for automatic electrical burner control systems
    BS EN 60335-2-90 : 2006 HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES - SAFETY - PART 2-90: PARTICULAR REQUIREMENTS FOR COMMERCIAL MICROWAVE OVENS
    11/30252002 DC : 0 BS EN 60730-2-5 - AUTOMATIC ELECTRICAL CONTROLS FOR HOUSEHOLD AND SIMILAR USE - PART 2-5: PARTICULAR REQUIREMENTS FOR AUTOMATIC ELECTRICAL BURNER CONTROL SYSTEMS
    BS EN 60601-1-1:2001 Medical electrical equipment. General requirements for safety Collateral standard. Safety requirements for medical electrical systems
    ANSI Z21.20-2005 (R2016) Automatic Gas Ignition Systems and Components
    I.S. EN 60601-1-1:2001 MEDICAL ELECTRICAL EQUIPMENT - PART 1-1: GENERAL REQUIREMENTS FOR SAFETY - COLLATERAL STANDARD: SAFETY REQUIREMENTS FOR MEDICAL ELECTRICAL SYSTEMS
    I.S. EN 61643-351:2017 COMPONENTS FOR LOW-VOLTAGE SURGE PROTECTIVE DEVICES - PART 351: PERFORMANCE REQUIREMENTS AND TEST METHODS FOR TELECOMMUNICATIONS AND SIGNALLING NETWORK SURGE ISOLATION TRANSFORMERS (SIT)
    EN IEC 61643-352:2018 Components for low-voltage surge protection - Part 352: Selection and application principles for telecommunications and signalling network surge isolation transformers (SITs)
    I.S. EN 60335-2-25:2012 HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES - SAFETY - PART 2-25: PARTICULAR REQUIREMENTS FOR MICROWAVE OVENS, INCLUDING COMBINATION MICROWAVE OVENS
    IEC 60730-2-5:2013+AMD1:2017 CSV Automatic electrical controls - Part 2-5: Particular requirements for automatic electrical burner control systems
    EN 60335-2-90:2006/A1:2010 HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES - SAFETY - PART 2-90: PARTICULAR REQUIREMENTS FOR COMMERCIAL MICROWAVE OVENS
    CSA E598.1 : 2002 LUMINAIRES - PART 1: GENERAL REQUIREMENTS AND TESTS
    EN 60601-1-1:2001 Medical electrical equipment - Part 1-1: General requirements for safety - Collateral standard: Safety requirements for medical electrical systems
    15/30327106 DC : 0 BS EN 61643-352 - LOW-VOLTAGE SURGE PROTECTIVE COMPONENT - PART 352: LIGHTNING ISOLATION TRANSFORMERS CONNECTED TO TELECOMMUNICATIONS AND SIGNALLING NETWORKS - SELECTION AND APPLICATION PRINCIPLES
    BS EN 60730-2-5:2015 Automatic electrical controls Particular requirements for automatic electrical burner control systems
    CSA C22.2 No. 60601.1.1 : 2002 : R2011 MEDICAL ELECTRICAL EQUIPMENT - PART 1-1: GENERAL REQUIREMENTS FOR SAFETY - COLLATERAL STANDARD: SAFETY REQUIREMENTS FOR MEDICAL ELECTRICAL SYSTEMS
    I.S. EN 60730-2-5:2015 AUTOMATIC ELECTRICAL CONTROLS - PART 2-5: PARTICULAR REQUIREMENTS FOR AUTOMATIC ELECTRICAL BURNER CONTROL SYSTEMS
    CSA E60598.1 : 2016 LUMINAIRES - PART 1: GENERAL REQUIREMENTS AND TESTS
    ANSI Z21.20 : 2005 : INC : ADD A : 2008 AUTOMATIC ELECTRICAL CONTROLS FOR HOUSEHOLD AND SIMILAR USE - PART 2-5: PARTICULAR REQUIREMENTS FOR AUTOMATIC ELECTRICAL BURNER CONTROL SYSTEMS
    BS EN IEC 61643-352:2018 Components for low-voltage surge protection Selection and application principles for telecommunications and signalling network surge isolation transformers (SITs)
    CEI EN 60601-1-1 : 2003 MEDICAL ELECTRICAL EQUIPMENT - PART 1-1: GENERAL REQUIREMENTS FOR SAFETY - COLLATERAL STANDARD: SAFETY REQUIREMENTS FOR MEDICAL ELECTRICAL SYSTEMS
    BS EN 60598-1:2015 Luminaires General requirements and tests
    I.S. EN 60598-1:2015 LUMINAIRES - PART 1: GENERAL REQUIREMENTS AND TESTS
    UNE-EN 60598-1:2015 Luminaires - Part 1: General requirements and tests
    00/565497 DC : DRAFT DEC 2000 BS IEC 60601-1 MEDICAL ELECTRICAL EQUIPMENT - PART 1: GENERAL REQUIREMENTS FOR SAFETY AND ESSENTIAL PERFORMANCE
    IEC 60601-1-1:2000 Medical electrical equipment - Part 1-1: General requirements for safety - Collateral standard: Safety requirements for medical electrical systems
    12/30266672 DC : 0 BS EN 60598-1 ED 8.0 - LUMINAIRES - PART 1: GENERAL REQUIREMENTS AND TESTS
    BS EN 61643-351:2017 Components for low-voltage surge protective devices Performance requirements and test methods for telecommunications and signalling network surge isolation transformers (SIT)
    IEC 61643-351:2016 Components for low-voltage surge protective devices - Part 351: Performance requirements and test methods for telecommunications and signalling network surge isolation transformers (SIT)
    EN 60598-1:2015/A1:2018 LUMINAIRES - PART 1: GENERAL REQUIREMENTS AND TESTS
    I.S. EN 60335-2-90:2006 HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES - SAFETY - PART 2-90: PARTICULAR REQUIREMENTS FOR COMMERCIAL MICROWAVE OVENS
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