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BS EN 62020:1999

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by

Electrical accessories. Residual current monitors for household and similar uses (RCMs)

Available format(s)

Hardcopy , PDF

Superseded date

27-04-2021

Superseded by

BS EN IEC 62020-1:2021

Language(s)

English

Published date

29-09-2006

€348.24
Excluding VAT

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

Specification for residual current monitors designed to monitor electrical installations or circuits for the presence of unbalanced earth fault currents.

Committee
PEL/23/1
DevelopmentNote
Supersedes 94/203617 DC. Also numbered as IEC 62020. (09/2005)
DocumentType
Standard
Pages
82
PublisherName
British Standards Institution
Status
Superseded
SupersededBy
Supersedes

BS 7671(2008) : 2018 REQUIREMENTS FOR ELECTRICAL INSTALLATIONS - IET WIRING REGULATIONS
BS 7671(2008) : 2008 REQUIREMENTS FOR ELECTRICAL INSTALLATIONS - IET WIRING REGULATIONS

CISPR 14-1:2016 Electromagnetic compatibility - Requirements for household appliances, electric tools and similar apparatus - Part 1: Emission
IEC 60038:2009 IEC standard voltages
EN 61543:1995/A2:2006 RESIDUAL CURRENT-OPERATED PROTECTIVE DEVICES (RCDS) FOR HOUSEHOLD AND SIMILAR USE - ELECTROMAGNETIC COMPATIBILITY
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
HD 625.1 : 200S1 INSULATION COORDINATION FOR EQUIPMENT WITHIN LOW-VOLTAGE SYSTEMS - PRINCIPLES, REQUIREMENTS AND TESTS
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
HD 472 S1:1989/AC:2013 NOMINAL VOLTAGES FOR LOW-VOLTAGE PUBLIC ELECTRICITY SUPPLY SYSTEMS
HD 323.2.30 : 200S3 BASIC ENVIRONMENTAL TESTING PROCEDURES - PART 2: TESTS - TEST DB AND GUIDANCE: DAMP HEAT, CYCLIC (12 + 12-HOUR CYCLE)
IEC 60050-101:1998 International Electrotechnical Vocabulary (IEV) - Part 101: Mathematics
HD 323.2.28 : 200S1 BASIC ENVIRONMENTAL TESTING PROCEDURES - TESTS - GUIDANCE FOR DAMP HEAT TESTS
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
EN 60695-2-10:2013 Fire hazard testing - Part 2-10: Glowing/hot-wire based test methods - Glow-wire apparatus and common test procedure
IEC 60417-2:1998 Graphical symbols for use on equipment - Part 2: Symbol originals
EN 45020:2006 Standardization and related activities - General vocabulary (ISO/IEC Guide 2:2004)
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
IEC 60051:1973 Recommendations for direct acting indicating electrical measuring instruments and their accessories
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
EN 60529:1991/AC:2016-12 DEGREES OF PROTECTION PROVIDED BY ENCLOSURES (IP CODE) (IEC 60529 EDITION 2.2 CORRIGENDUM 2:2015)
EN 45020 : 2006 STANDARDIZATION AND RELATED ACTIVITIES - GENERAL VOCABULARY
EN 61557-8:2015/AC:2016-06 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 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 60695-2-10:2013 Fire hazard testing - Part 2-10: Glowing/hot-wire based test methods - Glow-wire apparatus and common test procedure
IEC 60664-1:2007 Insulation coordination for equipment within low-voltage systems - Part 1: Principles, requirements and tests
EN 55014-1:2017 Electromagnetic compatibility - Requirements for household appliances, electric tools and similar apparatus - Part 1: Emission
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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