• SN EN 62020 : 1998 AMD 1 2005

    Current The latest, up-to-date edition.

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

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    Published date:  12-01-2013

    Publisher:  Swiss Standards

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

    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 EMC requirements
    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 tripping
              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
    Figures
    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 references to international publications
    and their corresponding European publications

    Abstract - (Show below) - (Hide below)

    Applicable to residual current monitors with rated voltages not in excess of 440 V a.c. and rated currents not in excess of 125 A for household and similar purposes.

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

    Document Type Standard
    Publisher Swiss Standards
    Status Current
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