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BS EN IEC 62052-11:2021 Electricity metering equipment. General requirements, tests and test conditions - Metering equipment, 2021
- undefined
- Annex ZA(normative)Normative references to international publicationswith their corresponding European publications
- CONTENTS
- FOREWORD
- INTRODUCTION
- 1 Scope
- 2 Normative references
- 3 Terms and definitions [Go to Page]
- 3.1 General definitions
- 3.2 Definitions related to the functional elements
- 3.3 Definitions of meter ports
- 3.4 Definitions of mechanical elements
- 3.5 Definitions related to measurements
- 3.6 Definitions related to external influences
- 3.7 Definition of tests
- 3.8 Definitions related to electromechanical meters
- 3.9 Definitions related to meter marking and symbols
- 4 Nominal electrical values [Go to Page]
- 4.1 Voltages [Go to Page]
- 4.1.1 Nominal voltages
- Tables [Go to Page]
- Table 1 – Nominal voltages [Go to Page]
- 4.1.2 Voltage ranges
- 4.2 Currents [Go to Page]
- 4.2.1 Nominal currents
- 4.2.2 Starting current
- 4.2.3 Minimum current
- Table 2 – Voltage ranges
- Table 3 – Preferred values of nominal currents [Go to Page]
- 4.2.4 Maximum current
- 4.2.5 Current ranges
- 4.3 Frequencies [Go to Page]
- 4.3.1 Nominal frequencies
- 4.3.2 Frequency ranges
- 4.4 Power consumption
- Table 4 – Current ranges
- Table 5 – Frequency ranges
- Table 6 – Maximum power consumption
- 5 Construction requirements [Go to Page]
- 5.1 General
- 5.2 Mechanical tests [Go to Page]
- 5.2.1 Shock test
- 5.2.2 Vibration test
- 5.3 Window
- 5.4 Terminals – Terminal block(s) – Protective conductor terminal
- 5.5 Sealing provisions [Go to Page]
- 5.5.1 General
- 5.5.2 Meter case
- 5.5.3 Meter terminals
- 5.5.4 Sealing of detached indicating displays
- 5.5.5 Sealing of LPIT connections
- 5.5.6 Sealing of meter configuration
- 5.6 Display of measured values [Go to Page]
- 5.6.1 General
- 5.6.2 Meters without indicating displays
- 5.6.3 Meters with indicating displays
- 5.7 Storage of measured values
- 5.8 Pulse outputs [Go to Page]
- 5.8.1 General
- 5.8.2 Optical test output
- 5.8.3 Electrical pulse output
- 5.8.4 Operation indicator
- 5.9 Electrical pulse inputs [Go to Page]
- 5.9.1 General characteristics
- 5.9.2 Functional tests of electrical pulse inputs
- 5.10 Auxiliary power supply
- 6 Meter marking and documentation [Go to Page]
- 6.1 Meter accuracy class marking
- 6.2 Meter marking
- Table 7 – Marking and documentation requirements
- 6.3 Connection diagrams and terminal marking
- 6.4 Symbols [Go to Page]
- 6.4.1 General
- 6.4.2 Symbols for the measuring elements
- 6.4.3 Symbols for transformer-operated meters
- 6.4.4 Identification of the displayed information
- 6.4.5 Marking of the measured quantity
- 6.4.6 Symbols of principal units used for meters (see Table 8)
- Table 8 – Symbols of principal units used for meters [Go to Page]
- 6.4.7 Symbols for auxiliary devices
- 6.4.8 Symbols for details of the suspension of the moving element
- 6.4.9 Symbols for communication ports
- 6.5 Documentation [Go to Page]
- 6.5.1 Installation manuals
- 6.5.2 Instruction for use
- 7 Metrological performance requirements and tests [Go to Page]
- 7.1 General test conditions
- Table 9 – Voltage and current balance
- Table 10 – Reference conditions
- 7.2 Methods of accuracy verification
- 7.3 Measurement uncertainty
- 7.4 Meter constant
- 7.5 Initial start-up of the meter
- 7.6 Test of no-load condition
- 7.7 Starting current test
- 7.8 Repeatability test
- 7.9 Limits of error due to variation of the current
- Table 11 – Repeatability test points
- 7.10 Limits of error due to influence quantities
- 7.11 Time-keeping accuracy
- 8 Climatic requirements [Go to Page]
- 8.1 General
- 8.2 Environmental conditions
- 8.3 Tests of the effects of the climatic environments [Go to Page]
- 8.3.1 General test requirements
- Table 12 – Environmental conditions [Go to Page]
- 8.3.2 Acceptance criteria
- 8.3.3 Dry heat test
- 8.3.4 Cold test
- 8.3.5 Damp heat cyclic test
- 8.3.6 Protection against solar radiation
- 8.4 Durability
- 9 The effects of external influence quantities and disturbances [Go to Page]
- 9.1 General
- Table 13 – Summary of the tests of immunity to influence quantities
- 9.2 Acceptance criteria
- Table 14 – Summary of the tests of immunity to disturbances
- 9.3 Electromagnetic compatibility (EMC) [Go to Page]
- 9.3.1 General
- Table 15 – Acceptance criteria [Go to Page]
- 9.3.2 Voltage dips and short interruptions
- Table 16 – Voltage dips, short interruptions and voltage variations immunity tests
- Table 17 – Voltage dips, short interruptions and voltage variations on DC input power port immunity tests [Go to Page]
- 9.3.3 Electrostatic discharge immunity test
- 9.3.4 Radiated, radio-frequency, electromagnetic field immunity test – test without current
- 9.3.5 Radiated, radio-frequency, electromagnetic field immunity test – test with current
- 9.3.6 Electrical fast transient/burst immunity test
- 9.3.7 Immunity to conducted disturbances, induced by radio-frequency fields
- 9.3.8 Test for immunity to conducted, differential mode disturbances and signalling in the frequency range 2 kHz to 150 kHz at AC power ports
- 9.3.9 Surge immunity test
- Table 18 – Surge immunity test voltage [Go to Page]
- 9.3.10 Ring wave immunity test
- 9.3.11 Damped oscillatory wave immunity test
- 9.3.12 External static magnetic fields
- 9.3.13 Power frequency magnetic field immunity test
- 9.3.14 Emission requirements
- 9.4 Tests of immunity to other influence quantities [Go to Page]
- 9.4.1 General
- 9.4.2 Harmonics in the current and voltage circuits
- 9.4.3 Voltage variation
- 9.4.4 Ambient temperature variation
- 9.4.5 Interruption of phase voltage
- Table 19 – Evaluation of primary meter functions under influence of voltage variation [Go to Page]
- 9.4.6 Frequency variation
- 9.4.7 Reversed phase sequence
- 9.4.8 Auxiliary voltage variation
- 9.4.9 Operation of auxiliary devices
- 9.4.10 Short-time overcurrents
- 9.4.11 Self-heating
- 9.4.12 Fast load current variations
- 9.4.13 Earth fault
- 10 Type test [Go to Page]
- 10.1 Test conditions
- 10.2 Type test report
- Annexes [Go to Page]
- Annex A (normative) Optical test output
- Figures [Go to Page]
- Figure A.1 – Test arrangement for the test output
- Figure A.2 – Waveform of the optical test output
- Annex B (normative) Class A and class B electrical pulse outputs [Go to Page]
- B.1 Electrical characteristics of pulse output
- Figure B.1 – Physical interface of the electrical pulse output
- Table B.1 – Specified operating conditions [Go to Page]
- B.2 Electrical output pulse waveform
- B.3 Test of electrical pulse output
- B.4 Test of pulse input
- Figure B.2 – Electrical output pulse waveform
- Figure B.3 – Pulse output test set-up
- Table B.2 – Test of pulse output
- Figure B.4 – Pulse input test set-up
- Table B.3 – Test of pulse input device
- Annex C (normative) Electrical pulse output for special applications and long distances according to IEC 60381-1:1982 [Go to Page]
- C.1 Specified operating conditions and output pulse waveform
- Table C.1 – Specified operating conditions [Go to Page]
- C.2 Test of pulse output
- Figure C.1 – Output pulse waveform
- Figure C.2 – Pulse output test set-up [Go to Page]
- C.3 Test of pulse input
- Figure C.3 – Pulse input test set-up
- Table C.2 – Test of pulse output device
- Table C.3 – Test of pulse input device
- Annex D (informative) Meter symbols and markings
- Table D.1 – Examples of voltage marking according to network voltage
- Table D.2 – Symbols for measuring elements
- Table D.3 – Marking of the measured quantity (examples)
- Table D.4 – Inscriptions indicating the accuracy class and the meter constant (examples)
- Table D.5 – Symbols for transformer-operated meters (examples)
- Table D.6 – Tariff function symbols (examples)
- Table D.7 – Symbols for tariff function (examples)
- Table D.8 – Symbols for auxiliary devices (examples)
- Table D.9 – Symbols for details of the suspension of the moving element (examples)
- Table D.10 – Symbols for communication ports (examples)
- Annex E (informative) Meter ports
- Figure E.1 – Typical port configuration of a directly connected meter (example)
- Figure E.2 – Typical port configuration of a transformer operated meter (example)
- Figure E.3 – Typical port configuration of a LPIT operated meterwith a detached indicating display (example)
- Annex F (informative) Test set-up for EMC tests
- Figure F.1 – Test set-up for the electrical fast transient/burst immunity test for transformer operated meters: each port (Mains, CT, HLV, ELV) is tested separately by adding the coupling device to the respective port
- Figure F.2 – Test set-up for the electrical fast transient/burst immunity test for directly connected meters: each port (Mains, HLV, ELV) is tested separately by adding the coupling device to the respective port
- Annex G (informative) Test for immunity to conducted, differential mode disturbances and signalling in the frequency range 2 kHz to 150 kHz at AC power ports
- Figure G.1 – Example of a test set-up for immunity to conducted, differential mode disturbances and signalling in the frequency range 2 kHz to 150 kHz at AC power ports (from IEC 61000-4-19: 2014)
- Annex H (normative) Test circuit diagrams for testing influence of harmonics and interharmonics
- Figure H.1 – Test circuit diagram (informative, test of influenceof interharmonics and odd harmonics)
- Figure H.2 – Burst fired wave-form (interharmonics)
- Figure H.3 – Informative distribution of interharmonic content of burst-fired waveform (the Fourier analysis is not complete)
- Figure H.4 – Phase fired waveform (odd harmonics) – 90° fired waveform
- Figure H.5 – Informative distribution of harmonic content of 90° phase fired waveform (the Fourier analysis is not complete)
- Figure H.6 – Phase fired waveform (odd harmonics) – 45° fired waveform
- Figure H.7 – Phase fired waveform (odd harmonics) – 135° fired waveform
- Figure H.8 – Test circuit diagram for half-wave rectification (DC and even harmonics)
- Figure H.9 – Half-wave rectified waveform (DC and even harmonics)
- Figure H.10 – Informative distribution of harmonic content of half-wave rectified waveform (the Fourier analysis is not complete)
- Annex I (informative) Short time overcurrent test waveform
- Annex J (informative) Fast load current variation test
- Annex K (normative) Electromagnet for testing the influence of externallyproduced magnetic fields [Go to Page]
- K.1 Permanent magnet for testing the influence of external static magnetic field
- K.2 Electromagnet for testing the influence of external static magnetic field with magneto-motive force of 1 000 At (ampere-turns) (see Figure K.1)
- Figure K.1 – Electromagnet for testing the influence of external static magnetic field with magneto-motive force of 1 000 At (ampere-turns)
- Annex L (normative) Test circuit diagram for the test of immunity to earth fault
- Figure L.1 – Circuit to simulate earth fault condition in phase 1
- Figure L.2 – Voltages at the meter under test
- Annex M (informative) Meter current range
- Figure M.1 – Meter current range
- Annex N (informative) Application to Branch Circuit Power Meters [Go to Page]
- N.1 Overview
- N.2 Definitions
- N.3 General
- N.4 Cross-channel influences
- N.5 Channel configuration and sealing for multi-branch meters
- N.6 Verification for multi-branch meters
- Table N.1 – Cross-channel influence test conditions for multi-circuit meters
- Annex O (informative) Overview of the technical changes
- Annex P (informative) Test schedule – Recommended test sequences [Go to Page]
