• I.S. EN 62020:1999

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

    ELECTRICAL ACCESSORIES - RESIDUAL CURRENT MONITORS FOR HOUSEHOLD AND SIMILAR USES (RCMS)

    Available format(s):  Hardcopy, PDF

    Superseded date:  08-05-2021

    Language(s):  English

    Published date:  01-01-1999

    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 Definitions
        3.1 Definitions relating to currents flowing from
             live parts to earth
        3.2 Definitions relating to the energization of an
             RCM
        3.3 Definitions relating to the operation and to the
             functions of residual current monitors
        3.4 Definitions relating to values and ranges of
             energizing quantities
        3.5 Definitions relating to values and ranges of
             influencing quantities
        3.6 Definitions relating to terminals
        3.7 Conditions of operation
        3.8 Test
    4 Classification
        4.1 According to the method of operation
        4.2 According to the type of installation
        4.3 According to the number of current paths
        4.4 According to the ability to adjust the residual
             operating current
        4.5 According to the possibility of adjusting the
             time-delay
        4.6 According to the protection against external
             influences
        4.7 According to the method of mounting
        4.8 According to the method of connection
        4.9 According to the type of connection of the load
             conductors
        4.10 According to fault indicating means
        4.11 According to ability to directionally discriminate
             between supply side and load side residual currents
    5 Characteristics of RCMs
        5.1 Summary of characteristics
        5.2 Rated quantities and other characteristics
        5.3 Standard and preferred values
        5.4 Coordination with short-circuit protective devices
             (SCPDs) (only valid for RCMs classified according
             to 4.9.2)
    6 Marking and other product information
    7 Standard conditions for operation in service and for
        installation
        7.1 Standard conditions
        7.2 Conditions of installation
    8 Requirements for construction and operation
        8.1 Mechanical design
        8.2 Protection against electric shock
        8.3 Dielectric properties
        8.4 Temperature rise
        8.5 Operating characteristic
        8.6 Directional discrimination
        8.7 Operational endurance
        8.8 Performance at short-circuit currents
        8.9 Resistance to mechanical impact
        8.10 Resistance to heat
        8.11 Resistance to abnormal heat and to fire
        8.12 Test device
        8.13 Correct operation RCMs within the supply voltage
             range
        8.14 Behaviour of RCMs in case of overcurrents in the
             main circuit
        8.15 Resistance of RCMs to unwanted tripping due to
             current surges caused by impulse voltages
        8.16 Behaviour of RCMs in case of earth fault currents
             comprising d.c. components
        8.17 Reliability
        8.18 Electromagnetic compatibility (Based on IEC 61543)
        8.19 Connection of an external current transformer (CT)
    9 Tests
        9.1 General
        9.2 Test conditions
        9.3 Test of indelibility of marking
        9.4 Test of reliability of screws, current-carrying parts
             and connections
        9.5 Test of reliability of terminals for external
             conductors
        9.6 Verification of protection against electric shock
        9.7 Test of dielectric properties
        9.8 Test of temperature rise
        9.9 Verification of operating characteristics
        9.10 Verification of operation endurance
        9.11 Verification of short-circuit withstand capability
        9.12 Verification of resistance to mechanical impact
        9.13 Test of resistance to heat
        9.14 Test of resistance to abnormal heat and to fire
        9.15 Verification of the operation of the test device
             at the limits of rated voltage
        9.16 Verification of limiting values of the non-operating
             current under overcurrent conditions
        9.17 Verification of resistance against unwanted
             operation due to current surges caused by impulse
             voltages
        9.18 Verification of resistance of the insulation against
             impulse voltages
        9.19 Verification of the correct operation at residual
             currents with d.c. components
        9.20 Verification of reliability
        9.21 Verification of ageing of electronic components
        9.22 Verification of EMC requirements
        9.23 Response of the RCM to temporary overvoltages
              on the LV-side, due to fault conditions on the HV-side
    Annex A (normative) Test sequence and number of samples to be
                         submitted for verification of conformity to
                         the standard
    Annex B (normative) Determination of clearances and creepage
                         distances
    Annex ZA (normative) Normative references to international
                         publications and their corresponding European
                         publications
    Figures

    Abstract - (Show below) - (Hide below)

    Applicable residual current monitors having rated voltages not exceeding 440 V a.c. and rated currents not exceeding 125 A for household and similar purposes.

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

    Development Note For CENELEC adoptions of IEC publications, please check www.iec.ch to be sure that you have any corrigenda that may apply. (01/2017)
    Document Type Standard
    Publisher National Standards Authority of Ireland
    Status Superseded
    Superseded By

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

    CISPR 14-1:2016 Electromagnetic compatibility - Requirements for household appliances, electric tools and similar apparatus - Part 1: Emission
    IEC 60038:2009 IEC standard voltages
    IEC 60695-2-1:1991 FIRE HAZARD TESTING - GLOW-WIRE TEST AND GUIDANCE
    IEC 60050-151:2001 International Electrotechnical Vocabulary (IEV) - Part 151: Electrical and magnetic devices
    IEC 60050-441:1984 International Electrotechnical Vocabulary (IEV) - Part 441: Switchgear, controlgear and fuses
    IEC 61008-1:2010+AMD1:2012+AMD2:2013 CSV Residual current operated circuit-breakers without integral overcurrent protection for household and similar uses (RCCBs) - Part1: General rules
    IEC 60364-5-53:2001+AMD1:2002+AMD2:2015 CSV Electrical installations of buildings - Part 5-53: Selection and erection of electrical equipment - Isolation, switching and control
    IEC 61543:1995 RESIDUAL CURRENT-OPERATED PROTECTIVE DEVICES (RCDS) FOR HOUSEHOLD AND SIMILAR USE - ELECTROMAGNETIC COMPATIBILITY
    IEC 60050-101:1998 International Electrotechnical Vocabulary (IEV) - Part 101: Mathematics
    IEC 60529:1989+AMD1:1999+AMD2:2013 CSV Degrees of protection provided by enclosures (IP Code)
    IEC 60755:2017 General safety requirements for residual current operated protective devices
    IEC 60417-2:1998 Graphical symbols for use on equipment - Part 2: Symbol originals
    IEC 60364-4-443:1995+AMD1:1998 CSV ELECTRICAL INSTALLATIONS OF BUILDINGS - PART 4: PROTECTION FOR SAFETY - CHAPTER 44: PROTECTION AGAINST OVERVOLTAGES - SECTION 443: PROTECTION AGAINST OVERVOLTAGES OF ATMOSPHERIC ORIGIN OR DUE TO SWITCHING
    ISO/IEC Guide 2:2004 Standardization and related activities General vocabulary
    IEC 60664-3:2016 INSULATION COORDINATION FOR EQUIPMENT WITHIN LOW-VOLTAGE SYSTEMS - PART 3: USE OF COATING, POTTING OR MOULDING FOR PROTECTION AGAINST POLLUTION
    IEC 60068-2-28:1990 Environmental testing - Part 2: Tests. Guidance for damp heat tests
    IEC 61557-8:2014 Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 8: Insulation monitoring devices for IT systems
    IEC 60664-1:2007 Insulation coordination for equipment within low-voltage systems - Part 1: Principles, requirements and tests
    EN 60664-3 : 2017 INSULATION COORDINATION FOR EQUIPMENT WITHIN LOW-VOLTAGE SYSTEMS - PART 3: USE OF COATING, POTTING OR MOULDING FOR PROTECTION AGAINST POLLUTION (IEC 60664-3:2016)
    EN 55014-1 : 2017 ELECTROMAGNETIC COMPATIBILITY - REQUIREMENTS FOR HOUSEHOLD APPLIANCES, ELECTRIC TOOLS AND SIMILAR APPARATUS - PART 1: EMISSION (CISPR 14-1:2016 + COR1:2016)
    IEC 60068-2-30:2005 Environmental testing - Part 2-30: Tests - Test Db: Damp heat, cyclic (12 h + 12 h cycle)
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