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  • BS EN 50470-1 : 2006

    Current The latest, up-to-date edition.

    ELECTRICITY METERING EQUIPMENT (A.C.) - PART 1: GENERAL REQUIREMENTS, TESTS AND TEST CONDITIONS - METERING EQUIPMENT (CLASS INDEXES A, B AND C)

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  01-01-2006

    Publisher:  British Standards Institution

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

    1 Scope
    2 Normative references
    3 Terms and definitions
      3.1 General definitions
      3.2 Definitions related to the functional elements
      3.3 Definitions of mechanical elements
      3.4 Definitions related to insulation
      3.5 Definitions of meter quantities
      3.6 Definitions of influence quantities
      3.7 Definitions of tests
      3.8 Definitions related to electromechanical meters
      3.9 Abbreviations
    4 Standard electrical values
      4.1 Standard reference voltages
      4.2 Standard currents and current ranges
      4.3 Standard reference frequency
    5 Mechanical requirements and tests
      5.1 General mechanical requirements
      5.2 Case
           5.2.1 Requirements
           5.2.2 Mechanical strength tests of meter case
      5.3 Window
      5.4 Terminals - Terminal block(s) - Protective earth
           terminal
      5.5 Terminal cover(s)
      5.6 Clearance and creepage distances
      5.7 Insulating encased meter of protective class II
      5.8 Resistance to heat and fire
      5.9 Protection against penetration of dust and water
      5.10 Display of measured values
      5.11 Output device and operation indicator
           5.11.1 General
           5.11.2 Mechanical and electrical characteristics
           5.11.3 Optical characteristics
      5.12 Marking of meter
           5.12.1 Name-plates
           5.12.2 Connection diagrams and terminal marking
      5.13 Accompanying information
    6 Climatic conditions
      6.1 Temperature ranges
      6.2 Relative humidity
      6.3 Tests of the effect of the climatic environments
           6.3.1 General
           6.3.2 Dry heat test (Test B)
           6.3.3 Cold test (Test A)
           6.3.4 Damp heat cyclic test (Test Db)
           6.3.5 Protection against solar radiation (Test Sa)
    7 Electrical requirements
      7.1 Voltage range
      7.2 Heating
      7.3 Insulation
           7.3.1 Requirements
           7.3.2 General test conditions
           7.3.3 Impulse voltage test
           7.3.4 AC voltage test
      7.4 Electromagnetic compatibility (EMC)
           7.4.1 Electromagnetic environment
           7.4.2 General requirements and test conditions
           7.4.3 Critical change value
           7.4.4 Immunity to voltage dips and short interruptions
           7.4.5 Immunity to electrostatic discharges
           7.4.6 Immunity to radiated RF electromagnetic fields
           7.4.7 Immunity to electrical fast transients/bursts
           7.4.8 Immunity to conducted disturbances, induced by RF
                  fields
           7.4.9 Immunity to surges
           7.4.10 Immunity to damped oscillatory waves
           7.4.11 Immunity to continuous magnetic fields of external
                  origin
           7.4.12 Immunity to power frequency magnetic fields of
                  external origin
           7.4.13 Radio interference suppression
    8 Type test
      8.1 Test conditions
    Annex A (normative) Relationship between ambient air
                           temperature and relative humidity
    Annex B (normative) Optical test output
    Annex C (normative) Voltage waveform for the tests of the
                           effect of voltage dips and short
                           interruptions
    Annex D (informative) Test set-up for electromagnetic
                           compatibility (EMC) tests
    Annex E (normative) Electromagnet for testing the influence
                           of continuous magnetic fields of external
                           origin
    Annex F (informative) Test schedule - Recommended test
                           sequences
    Annex ZZ (informative) Coverage of Essential Requirements of EC
                           Directives
    Index

    Abstract - (Show below) - (Hide below)

    Applies to newly manufactured watt-hour meters, measuring active electrical energy, intended for residential, commercial and light industrial use, for use on 50 Hz electrical networks.

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

    Committee PEL/13
    Document Type Standard
    Publisher British Standards Institution
    Status Current

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

    BS 7856:2017 Specification for special design and other features of alternating current watthour meters for active energy for use in the UK (Accuracy Classes A and B)
    13/30281948 DC : 0 BS 7856 - CODE OF PRACTICE FOR SPECIAL DESIGN AND OTHER FEATURES OF ALTERNATING CURRENT WATTHOUR METERS FOR ACTIVE ENERGY (MID ACCURACY CLASSES A AND B) FOR USE IN THE UK
    16/30348626 DC : 0 BS 7856:2017 - SPECIFICATION FOR SPECIAL DESIGN AND OTHER FEATURES OF ALTERNATING CURRENT WATTHOUR METERS FOR ACTIVE ENERGY FOR USE IN THE UK (ACCURACY CLASSES A AND B)
    BS 7856:2013 Code of practice for special design and other features of alternating current watthour meters for active energy (MID accuracy classes A and B) for use in the UK

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

    IEC 61000-4-8 : 2.0 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-8: TESTING AND MEASUREMENT TECHNIQUES - POWER FREQUENCY MAGNETIC FIELD IMMUNITY TEST
    EN 60044-2:1999/A2:2003 INSTRUMENT TRANSFORMERS - PART 2: INDUCTIVE VOLTAGE TRANSFORMERS
    IEC 60038:2009 IEC standard voltages
    EN 62053-31 : 1998 Electricity metering equipment (a.c.) - Particular requirements - Part 31: Pulse output devices for electromechanical and electronic meters (two wires only)
    IEC 60068-2-5:2010 Environmental testing - Part 2-5: Tests - Test Sa: Simulated solar radiation at ground level and guidance for solar radiation testing
    EN 60068-2-75:2014 Environmental testing - Part 2-75: Tests - Test Eh: Hammer tests
    EN 60721-3-1:1997 Classification of environmental conditions - Part 3: Classification of groups of environmental parameters and their severities - Section 1: Storage
    EN 61000-4-1:2007 Electromagnetic compatibility (EMC) - Part 4-1: Testing and measurement techniques - Overview of IEC 61000-4 series
    EN 50470-3:2006 Electricity metering equipment (a.c.) - Part 3: Particular requirements - Static meters for active energy (class indexes A, B and C)
    IEC 61000-4-4 : 3.0EN+(REDLINE+VERSION) ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-4: TESTING AND MEASUREMENT TECHNIQUES - ELECTRICAL FAST TRANSIENT/BURST IMMUNITY TEST
    IEC 60068-2-27:2008 Environmental testing - Part 2-27: Tests - Test Ea and guidance: Shock
    IEC 61000-4-1:2006 Electromagnetic compatibility (EMC) - Part 4-1: Testing and measurement techniques - Overview of IEC 61000-4 series
    EN 60359:2002 Electrical and electronic measurement equipment - Expression of performance
    EN 60085:2008 Electrical insulation - Thermal evaluation and designation
    EN 61000-4-11:2004/A1:2017 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-11: TESTING AND MEASUREMENT TECHNIQUES - VOLTAGE DIPS, SHORT INTERRUPTIONS AND VOLTAGE VARIATIONS IMMUNITY TESTS (IEC 61000-4-11:2004/A1:2017)
    EN 60068-2-1:2007 Environmental testing - Part 2-1: Tests - Test A: Cold
    EN 60068-2-2:2007 Environmental testing - Part 2-2: Tests - Test B: Dry heat
    IEC 61000-4-11:2004+AMD1:2017 CSV Electromagnetic compatibility (EMC) - Part 4-11: Testing and measurement techniques - Voltage dips, short interruptions and voltage variations immunity tests
    IEC 60044-2:1997+AMD1:2000+AMD2:2002 CSV Instrument transformers - Part 2 : Inductive voltage transformers
    1989/336/EEC : 1989 COUNCIL DIRECTIVE OF 3 MAY 1989 ON THE APPROXIMATION OF THE LAWS OF THE MEMBER STATES RELATING TO ELECTROMAGNETIC COMPATIBILITY
    IEC 62053-52:2005 Electricity metering equipment (AC) - Particular requirements - Part 52: Symbols
    IEC 60068-2-11:1981 Basic environmental testing procedures - Part 2-11: Tests - Test Ka: Salt mist
    IEC 61000-4-8:2009 Electromagnetic compatibility (EMC) - Part 4-8: Testing and measurement techniques - Power frequency magnetic field immunity test
    IEC 61000-4-4:2012 RLV Electromagnetic compatibility (EMC) - Part 4-4: Testing and measurement techniques - Electrical fast transient/burst immunity test
    EN 61000-4-2:2009 Electromagnetic compatibility (EMC) - Part 4-2: Testing and measurement techniques - Electrostatic discharge immunity test
    IEC 60695-2-11:2014 Fire hazard testing - Part 2-11: Glowing/hot-wire based test methods - Glow-wire flammability test method for end-products (GWEPT)
    IEC 61000-4-12 : 3.0 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-12: TESTING AND MEASUREMENT TECHNIQUES - RING WAVE IMMUNITY TEST
    HD 588.1 : S1 AMD 1 HIGH VOLTAGE TEST TECHNIQUES - GENERAL DEFINITIONS AND TEST REQUIREMENTS
    IEC 62052-11:2003+AMD1:2016 CSV Electricity metering equipment (a.c.) - General requirements, tests and test conditions - Part 11: Metering equipment
    ISO 75-2:2013 Plastics — Determination of temperature of deflection under load — Part 2: Plastics and ebonite
    IEC 62053-31:1998 Electricity metering equipment (a.c.) - Particular requirements - Part 31: Pulse output devices for electromechanical and electronic meters (two wires only)
    IEC 61000-4-6 : 4.0 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-6: TESTING AND MEASUREMENT TECHNIQUES - IMMUNITY TO CONDUCTED DISTURBANCES, INDUCED BY RADIO-FREQUENCY FIELDS
    IEC 61000-4-6:2013 Electromagnetic compatibility (EMC) - Part 4-6: Testing and measurement techniques - Immunity to conducted disturbances, induced by radio-frequency fields
    CISPR 22:2008 Information technology equipment - Radio disturbance characteristics - Limits and methods of measurement
    EN 61000-4-3 : 2006 AMD 2 2010 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-3: TESTING AND MEASUREMENT TECHNIQUES - RADIATED, RADIO-FREQUENCY, ELECTROMAGNETIC FIELD IMMUNITY TEST
    IEC 60085:2007 Electrical insulation - Thermal evaluation and designation
    EN ISO 75-2:2013 Plastics - Determination of temperature of deflection under load - Part 2: Plastics and ebonite (ISO 75-2:2013)
    EN 60068-2-27:2009 Environmental testing - Part 2-27: Tests - Test Ea and guidance: Shock
    EN 55022:2010/AC:2011 INFORMATION TECHNOLOGY EQUIPMENT - RADIO DISTURBANCE CHARACTERISTICS - LIMITS AND METHODS OF MEASUREMENT (CISPR 22:2008)
    EN 62053-52:2005 Electricity metering equipment (AC) - Particular requirements - Part 52: Symbols
    IEC 60529:1989+AMD1:1999+AMD2:2013 CSV Degrees of protection provided by enclosures (IP Code)
    IEC 60044-1:1996+AMD1:2000+AMD2:2002 CSV Instrument transformers - Part 1: Current transformers
    EN 61000-4-8:2010 Electromagnetic compatibility (EMC) - Part 4-8: Testing and measurement techniques - Power frequency magnetic field immunity test
    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 60721-3-2:1997 Classification of environmental conditions - Part 3: Classification of groups of environmental parameters and their severities - Section 2: Transportation
    EN 61000-4-12:2017 Electromagnetic compatibility (EMC) - Part 4-12: Testing and measurement techniques - Ring wave immunity test
    EN 50470-2:2006 Electricity metering equipment (a.c.) - Part 2: Particular requirements - Electromechanical meters for active energy (class indexes A and B)
    IEC 60068-2-2:2007 Environmental testing - Part 2-2: Tests - Test B: Dry heat
    IEC 61000-4-2:2008 Electromagnetic compatibility (EMC) - Part 4-2: Testing and measurement techniques - Electrostatic discharge immunity test
    IEC 61000-4-3:2006+AMD1:2007+AMD2:2010 CSV Electromagnetic compatibility (EMC) - Part 4-3: Testing and measurement techniques - Radiated, radio-frequency, electromagnetic field immunity test
    IEC 60721-3-3:1994+AMD1:1995+AMD2:1996 CSV Classification of environmental conditions - Part 3-3: Classification of groups of environmental parameters and their severities - Stationary use at weatherprotected locations
    EN 60068-2-6:2008 Environmental testing - Part 2-6: Tests - Test Fc: Vibration (sinusoidal)
    IEC 60359:2001 Electrical and electronic measurement equipment - Expression of performance
    IEC 60068-2-75:2014 Environmental testing - Part 2-75: Tests - Test Eh: Hammer tests
    EN 60044-1:1999/A2:2003 INSTRUMENT TRANSFORMERS - PART 1: CURRENT TRANSFORMERS
    EN 61000-4-4:2012 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-4: TESTING AND MEASUREMENT TECHNIQUES - ELECTRICAL FAST TRANSIENT/BURST IMMUNITY TEST (IEC 61000-4-4:2012)
    EN 60068-2-11:1999 Environmental testing - Part 2: Tests - Test Ka: Salt mist
    IEC 60068-2-1:2007 Environmental testing - Part 2-1: Tests - Test A: Cold
    EN 60721-3-2:1997 Classification of environmental conditions - Part 3: Classification of groups of environmental parameters and their severities - Section 2: Transportation
    EN 60529:1991/AC:2016-12 DEGREES OF PROTECTION PROVIDED BY ENCLOSURES (IP CODE) (IEC 60529 EDITION 2.2 CORRIGENDUM 2:2015)
    IEC 60060-1:2010 High-voltage test techniques - Part 1: General definitions and test requirements
    EN 60068-2-5:2011 Environmental testing - Part 2-5: Tests - Test Sa: Simulated solar radiation at ground level and guidance for solar radiation testing
    EN 60068-2-30:2005 Environmental testing - Part 2-30: Tests - Test Db: Damp heat, cyclic (12 h + 12 h cycle)
    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 60050-300:2001 International Electrotechnical Vocabulary (IEV) - Part 300: Electrical and electronic measurements and measuring instruments - Part 311: General terms relating to measurements - Part 312: General terms relating to electrical measurements - Part 313: Types of electrical measuring instruments - Part 314: Specific terms according to the type of instrument
    EN 60695-2-11:2014 Fire hazard testing - Part 2-11: Glowing/hot-wire based test methods - Glow-wire flammability test method for end-products (GWEPT) (IEC 60695-2-11:2014)
    IEC 60721-3-1:1997 Classification of environmental conditions - Part 3 Classification of groups of environmental parameters and their severities - Section 1: Storage
    EN 60721-3-3 : 95 AMD 2 97 CLASSIFICATION OF ENVIRONMENTAL CONDITIONS - CLASSIFICATION OF GROUPS OF ENVIRONMENTAL PARAMETERS AND THEIR SEVERITIES - STATIONARY USE AT WEATHER-PROTECTED LOCATIONS
    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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