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BS EN IEC 62052-11:2021+A11:2022:2023 Edition

BS EN IEC 62052-11:2021+A11:2022:2023 Edition

$215.11

Electricity metering equipment. General requirements, tests and test conditions – Metering equipment

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BSI 2023 132
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This part of IEC 62052 specifies requirements and associated tests, with their appropriate conditions for type testing of AC and DC electricity meters. This document details functional, mechanical, electrical and marking requirements, test methods, and test conditions, including immunity to external influences covering electromagnetic and climatic environments.

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PDF Pages PDF Title
2 undefined
29 3.1 General definitions
33 3.2 Definitions related to the functional elements
36 3.3 Definitions of meter ports
37 3.4 Definitions of mechanical elements
39 3.5 Definitions related to measurements
42 3.6 Definitions related to external influences
45 3.7 Definition of tests
3.8 Definitions related to electromechanical meters
46 3.9 Definitions related to meter marking and symbols
47 4.1 Voltages
4.1.1 Nominal voltages
Table 1 – Nominal voltages
48 4.1.2 Voltage ranges
4.2 Currents
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
49 4.2.4 Maximum current
4.2.5 Current ranges
4.3 Frequencies
4.3.1 Nominal frequencies
4.3.2 Frequency ranges
4.4 Power consumption
Table 4 – Current ranges
Table 5 – Frequency ranges
50 Table 6 – Maximum power consumption
51 5.1 General
5.2 Mechanical tests
5.2.1 Shock test
52 5.2.2 Vibration test
5.3 Window
5.4 Terminals – Terminal block(s) – Protective conductor terminal
5.5 Sealing provisions
5.5.1 General
5.5.2 Meter case
53 5.5.3 Meter terminals
5.5.4 Sealing of detached indicating displays
5.5.5 Sealing of LPIT connections
54 5.5.6 Sealing of meter configuration
5.6 Display of measured values
5.6.1 General
5.6.2 Meters without indicating displays
5.6.3 Meters with indicating displays
55 5.7 Storage of measured values
5.8 Pulse outputs
5.8.1 General
5.8.2 Optical test output
57 5.8.3 Electrical pulse output
5.8.4 Operation indicator
58 5.9 Electrical pulse inputs
5.9.1 General characteristics
5.9.2 Functional tests of electrical pulse inputs
5.10 Auxiliary power supply
59 6.1 Meter accuracy class marking
6.2 Meter marking
61 Table 7 – Marking and documentation requirements
63 6.3 Connection diagrams and terminal marking
6.4 Symbols
6.4.1 General
64 6.4.2 Symbols for the measuring elements
6.4.3 Symbols for transformer-operated meters
6.4.4 Identification of the displayed information
65 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
66 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
6.5.1 Installation manuals
6.5.2 Instruction for use
7.1 General test conditions
67 Table 9 – Voltage and current balance
Table 10 – Reference conditions
68 7.2 Methods of accuracy verification
7.3 Measurement uncertainty
69 7.4 Meter constant
7.5 Initial start-up of the meter
70 7.6 Test of no-load condition
7.7 Starting current test
71 7.8 Repeatability test
7.9 Limits of error due to variation of the current
Table 11 – Repeatability test points
72 7.10 Limits of error due to influence quantities
7.11 Time-keeping accuracy
8.1 General
8.2 Environmental conditions
8.3 Tests of the effects of the climatic environments
8.3.1 General test requirements
Table 12 – Environmental conditions
73 8.3.2 Acceptance criteria
8.3.3 Dry heat test
8.3.4 Cold test
8.3.5 Damp heat cyclic test
74 8.3.6 Protection against solar radiation
8.4 Durability
9.1 General
75 Table 13 – Summary of the tests of immunity to influence quantities
76 9.2 Acceptance criteria
Table 14 – Summary of the tests of immunity to disturbances
77 9.3 Electromagnetic compatibility (EMC)
9.3.1 General
Table 15 – Acceptance criteria
79 9.3.2 Voltage dips and short interruptions
Table 16 – Voltage dips, short interruptions and voltage variations immunity tests
80 Table 17 – Voltage dips, short interruptions and voltage variations on DC input power port immunity tests
81 9.3.3 Electrostatic discharge immunity test
9.3.4 Radiated, radio-frequency, electromagnetic field immunity test – test without current
82 9.3.5 Radiated, radio-frequency, electromagnetic field immunity test – test with current
9.3.6 Electrical fast transient/burst immunity test
83 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
84 9.3.9 Surge immunity test
85 Table 18 – Surge immunity test voltage
86 9.3.10 Ring wave immunity test
9.3.11 Damped oscillatory wave immunity test
87 9.3.12 External static magnetic fields
88 9.3.13 Power frequency magnetic field immunity test
9.3.14 Emission requirements
89 9.4 Tests of immunity to other influence quantities
9.4.1 General
9.4.2 Harmonics in the current and voltage circuits
90 9.4.3 Voltage variation
91 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
92 9.4.6 Frequency variation
9.4.7 Reversed phase sequence
9.4.8 Auxiliary voltage variation
93 9.4.9 Operation of auxiliary devices
9.4.10 Short-time overcurrents
94 9.4.11 Self-heating
9.4.12 Fast load current variations
95 9.4.13 Earth fault
10.1 Test conditions
96 10.2 Type test report
97 Annex A (normative) Optical test output
Figure A.1 – Test arrangement for the test output
Figure A.2 – Waveform of the optical test output
98 Annex B (normative) Class A and class B electrical pulse outputs
B.1 Electrical characteristics of pulse output
Figure B.1 – Physical interface of the electrical pulse output
Table B.1 – Specified operating conditions
99 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
100 Figure B.4 – Pulse input test set-up
Table B.3 – Test of pulse input device
101 Annex C (normative) Electrical pulse output for special applications and long distances according to IEC 60381-1:1982
C.1 Specified operating conditions and output pulse waveform
Table C.1 – Specified operating conditions
102 C.2 Test of pulse output
Figure C.1 – Output pulse waveform
Figure C.2 – Pulse output test set-up
103 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
104 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
105 Table D.3 – Marking of the measured quantity (examples)
Table D.4 – Inscriptions indicating the accuracy class and the meter constant (examples)
106 Table D.5 – Symbols for transformer-operated meters (examples)
Table D.6 – Tariff function symbols (examples)
Table D.7 – Symbols for tariff function (examples)
107 Table D.8 – Symbols for auxiliary devices (examples)
Table D.9 – Symbols for details of the suspension of the moving element (examples)
108 Table D.10 – Symbols for communication ports (examples)
109 Annex E (informative) Meter ports
Figure E.1 – Typical port configuration of a directly connected meter (example)
110 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)
112 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
113 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
114 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)
115 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)
116 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)
117 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)
118 Figure H.6 – Phase fired waveform (odd harmonics) – 45° fired waveform
Figure H.7 – Phase fired waveform (odd harmonics) – 135° fired waveform
119 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)
120 Figure H.10 – Informative distribution of harmonic content of half-wave rectified waveform (the Fourier analysis is not complete)
121 Annex I (informative) Short time overcurrent test waveform
122 Annex J (informative) Fast load current variation test
123 Annex K (normative) Electromagnet for testing the influence of externallyproduced magnetic fields
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)
124 Figure K.1 – Electromagnet for testing the influence of external static magnetic field with magneto-motive force of 1 000 At (ampere-turns)
125 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
126 Annex M (informative) Meter current range
Figure M.1 – Meter current range
127 Annex N (informative) Application to Branch Circuit Power Meters
N.1 Overview
N.2 Definitions
N.3 General
128 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
129 Annex O (informative) Overview of the technical changes
130 Annex P (informative) Test schedule – Recommended test sequences

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