Electricity metering equipment (a.c.) - General requirements, tests and test conditions - Part 11: Metering equipment

IEC 62052-11:2020 (E) 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.
This document applies to electricity metering equipment designed to:
• measure and control electrical energy on electrical networks (mains) with voltage up to 1 000 V AC, or 1 500 V DC;
• have all functional elements, including add-on modules, enclosed in, or forming a single meter case with exception of indicating displays;
• operate with integrated displays (electromechanical or static meters);
• operate with detached indicating displays, or without an indicating display (static meters only);
• be installed in a specified matching sockets or racks;
• optionally, provide additional functions other than those for measurement of electrical energy.
Meters designed for operation with Low Power Instrument Transformers (LPITs as defined in the IEC 61869 series) may be tested for compliance with this document and the relevant IEC 62053 series documents only if such meters and their LPITs are tested together as directly connected meters.
This document is also applicable to auxiliary input and output circuits, operation indicators, and test outputs of equipment for electrical energy measurement.
This document also covers the common aspects of accuracy testing such as reference conditions, repeatability and measurement of uncertainty.
This document does not apply to:
• meters for which the voltage line-to-neutral derived from nominal voltages exceeds 1 000 V AC, or 1 500 V DC;
• meters intended for connection with low power instrument transformers (LPITs as defined in the IEC 61869 series of standards) when tested without such transformers;
• metering systems comprising multiple devices (except of LPITs) physically remote from one another;
• portable meters;
• meters used in rolling stock, vehicles, ships and airplanes;
• laboratory and meter test equipment;
• reference standard meters;
• data interfaces to the register of the meter;
• matching sockets or racks used for installation of electricity metering equipment;
• any additional functions provided in electrical energy meters.
This document does not cover measures for the detection and prevention of fraudulent attempts to compromise a meter’s performance (tampering).
This second edition cancels and replaces the first edition published in 2003, and its amendment 1:2016. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) Removed all meter safety requirements; the meter safety requirements are covered in IEC 62052-31:2015;
b) Included requirements for meter power consumption and voltage requirements from IEC 62053-61; IEC 62053-61 is withdrawn;
c) Included requirements for meter symbols from IEC 62053-52; IEC 62053-52 is withdrawn;
d) Included requirements for meter pulse output devices from IEC 62053-31; IEC 62053-31 is withdrawn;
e) Added new requirements and tests including: meters with detached indicating displays, and meters without indicating displays, meter sealing provisions; measurement uncertainty and repeatability; time-keeping accuracy; type tes

Elektrizitätszähler - Allgemeine Anforderungen, Prüfungen und Prüfbedingungen - Teil 11: Messeinrichtungen

Équipement de comptage de l'électricité - Exigences générales, essais et conditions d'essai - Partie 11: Équipement de comptage

Oprema za merjenje električne energije - Splošne zahteve, preskusi in preskuševalni pogoji - 11. del: Merilna oprema

General Information

Status
Published
Publication Date
09-May-2021
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
05-May-2021
Due Date
10-Jul-2021
Completion Date
10-May-2021

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SLOVENSKI STANDARD
SIST EN IEC 62052-11:2021
01-junij-2021
Nadomešča:
SIST EN 62052-11:2004
SIST EN 62052-11:2004/A1:2017
SIST EN 62052-11:2004/A1:2017/AC:2018
Oprema za merjenje električne energije - Splošne zahteve, preskusi in
preskuševalni pogoji - 11. del: Merilna oprema

Electricity metering equipment (a.c.) - General requirements, tests and test conditions -

Part 11: Metering equipment
Ta slovenski standard je istoveten z: EN IEC 62052-11:2021
ICS:
17.220.20 Merjenje električnih in Measurement of electrical
magnetnih veličin and magnetic quantities
91.140.50 Sistemi za oskrbo z elektriko Electricity supply systems
SIST EN IEC 62052-11:2021 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN IEC 62052-11:2021
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SIST EN IEC 62052-11:2021
EUROPEAN STANDARD EN IEC 62052-11
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2021
ICS 17.220.20 Supersedes EN 62052-11:2003 and all of its
amendments and corrigenda (if any)
English Version
Electricity metering equipment - General requirements, tests and
test conditions - Part 11: Metering equipment
(IEC 62052-11:2020)

Équipement de comptage de l'électricité - Exigences Elektrizitätszähler - Allgemeine Anforderungen, Prüfungen

générales, essais et conditions d'essai - Partie 11: und Prüfbedingungen - Teil 11: Messeinrichtungen

Équipement de comptage (IEC 62052-11:2020)
(IEC 62052-11:2020)

This European Standard was approved by CENELEC on 2020-08-03. CENELEC members are bound to comply with the CEN/CENELEC

Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC

Management Centre or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation

under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the

same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,

Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the

Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN IEC 62052-11:2021 E
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SIST EN IEC 62052-11:2021
EN IEC 62052-11:2021 (E)
European foreword

The text of document 13/1808/FDIS, future edition 2 of IEC 62052-11, prepared by IEC/TC 13

"Electrical energy measurement and control" was submitted to the IEC-CENELEC parallel vote and

approved by CENELEC as EN IEC 62052-11:2021.
The following dates are fixed:

• latest date by which the document has to be implemented at national (dop) 2021-10-02

level by publication of an identical national standard or by endorsement

• latest date by which the national standards conflicting with the (dow) 2024-04-02

document have to be withdrawn

This document supersedes EN 62052-11:2003 and all of its amendments and corrigenda (if any).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.

This document has been prepared under a mandate given to CENELEC by the European Commission

and the European Free Trade Association.
Endorsement notice

The text of the International Standard IEC 62052-11:2020 was approved by CENELEC as a European

Standard without any modification.
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SIST EN IEC 62052-11:2021
EN IEC 62052-11:2021 (E)
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments)

applies.

NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod), the

relevant EN/HD applies.

NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available

here: www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60038 (mod) 2009 IEC standard voltages EN 60038 2011
IEC 60068-2-1 2007 Environmental testing - Part 2-1: Tests - EN 60068-2-1 2007
Test A: Cold
IEC 60068-2-2 2007 Environmental testing - Part 2-2: Tests - EN 60068-2-2 2007
Test B: Dry heat

IEC 60068-2-5 2018 Environmental testing – Part 2-5: Tests – EN IEC 60068-2-5 2018

Test S: Simulated solar radiation at ground
level and guidance for solar radiation
testing and weathering
IEC 60068-2-6 2007 Environmental testing - Part 2-6: Tests - EN 60068-2-6 2008
Test Fc: Vibration (sinusoidal)

IEC 60068-2-27 2008 Environmental testing - Part 2-27: Tests - EN 60068-2-27 2009

Test Ea and guidance: Shock

IEC 60068-2-30 2005 Environmental testing - Part 2-30: Tests - EN 60068-2-30 2005

Test Db: Damp heat, cyclic (12 h + 12 h
cycle)
IEC 60381-1 1982 Analogue signals for process control HD 452.1 S1 1984
systems. Part 1: Direct current signals
IEC 60404-5 2015 Magnetic materials - Part 5: Permanent EN 60404-5 2015
magnet (magnetically hard) materials -
Methods of measurement of magnetic
properties
IEC 60404-8-1 2015 Magnetic materials - Part 8-1: EN 60404-8-1 2015
Specifications for individual materials -
Magnetically hard materials
IEC 60404-8-4 2013 Magnetic materials - Part 8-4: - -
Specifications for individual materials -
Cold-rolled non-oriented electrical steel
strip and sheet delivered in the fully-
processed state
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SIST EN IEC 62052-11:2021
EN IEC 62052-11:2021 (E)
Publication Year Title EN/HD Year
IEC 60664-1 2007 Insulation coordination for equipment EN 60664-1 2007
within low-voltage systems - Part 1:
Principles, requirements and tests
IEC 60721-1 1990 Classification of environmental conditions - EN 60721-1 1995
Part 1: Environmental parameters and their
severities
IEC 60947-1 2007 Low-voltage switchgear and controlgear - EN 60947-1 2007
Part 1: General rules
+ A1 2010 + A1 2011
+ A2 2014 + A2 2014
IEC 61000-4-2 2008 Electromagnetic compatibility (EMC) - Part EN 61000-4-2 2009
4-2: Testing and measurement techniques
- Electrostatic discharge immunity test
IEC 61000-4-3 2006 Electromagnetic compatibility (EMC) - Part EN 61000-4-3 2006
4-3 : Testing and measurement techniques
- Radiated, radio-frequency,
electromagnetic field immunity test
+ A1 2007 + A1 2008
+ A2 2010 + A2 2010
IEC 61000-4-4 2012 Electromagnetic compatibility (EMC) - Part EN 61000-4-4 2012
4-4: Testing and measurement techniques
- Electrical fast transient/burst immunity
test
IEC 61000-4-5 2017 Electromagnetic compatibility (EMC) - Part - -
4-5: Testing and measurement techniques
- Surge immunity test
IEC 61000-4-6 2013 Electromagnetic compatibility (EMC) - Part EN 61000-4-6 2014
4-6: Testing and measurement techniques
- Immunity to conducted disturbances,
induced by radio-frequency fields
IEC 61000-4-8 2009 Electromagnetic compatibility (EMC) - Part EN 61000-4-8 2010
4-8: Testing and measurement techniques
- Power frequency magnetic field immunity
test

IEC 61000-4-11 2020 Electromagnetic compatibility (EMC) - Part EN IEC 61000-4-11 2020

4-11: Testing and measurement
techniques - Voltage dips, short
interruptions and voltage variations
immunity tests for equipment with input
current up to 16 A per phase

IEC 61000-4-12 2017 Electromagnetic compatibility (EMC) – Part EN 61000-4-12 2017

4-12: Testing and measurement
techniques – Ring wave immunity test

IEC 61000-4-18 2019 Electromagnetic compatibility (EMC) - Part EN IEC 61000-4-18 2019

4-18: Testing and measurement
techniques - Damped oscillatory wave
immunity test
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SIST EN IEC 62052-11:2021
EN IEC 62052-11:2021 (E)
Publication Year Title EN/HD Year

IEC 61000-4-19 2014 Electromagnetic compatibility (EMC) - Part EN 61000-4-19 2014

4-19: Testing and measurement
techniques - Test for immunity to
conducted, differential mode disturbances
and signalling in the frequency range 2 kHz
to 150 kHz at a.c. power ports

IEC 61000-4-20 2010 Electromagnetic compatibility (EMC) - Part EN 61000-4-20 2010

4-20: Testing and measurement
techniques - Emission and immunity
testing in transverse electromagnetic
(TEM) waveguides

IEC 61000-4-29 2000 Electromagnetic compatibility (EMC) - Part EN 61000-4-29 2000

4-29: Testing and measurement
techniques - Voltage dips, short
interruptions and voltage variations on d.c.
input power port immunity tests
IEC 61869-3 2011 Instrument transformers - Part 3: Additional EN 61869-3 2011
requirements for inductive voltage
transformers
IEC 62052-31 2015 Electricity metering equipment (AC) - EN 62052-31 2016
General requirements, tests and test
conditions - Part 31: Product safety
requirements and tests
IEC 62054-21 2004 Electricity metering (a.c.) - Tariff and load EN 62054-21 2004
control - Part 21: Particular requirements
for time switches
IEC 62056-6-1 2017 Electricity metering data exchange - The EN 62056-6-1 2017
DLMS/COSEM suite - Part 6-1: Object
Identification System (OBIS)

IEC 62056-6-2 2017 Electricity metering data exchange - The EN IEC 62056-6-2 2018

DLMS/COSEM suite - Part 6-2: COSEM
interface classes
IEC 62057-1 - Test equipment, techniques and EN IEC 62057-1 -
procedures for electrical energy meters -
Part 1: Stationary Meter Test Units (MTU)
IEC 62059-32-1 2011 Electricity metering equipment - EN 62059-32-1 2012
Dependability - Part 32-1: Durability -
Testing of the stability of metrological
characteristics by applying elevated
temperature
IEC GUIDE 98-3 - Uncertainty of measurement – Part 3: - -
Guide to the expression of uncertainty in
measurement (GUM:1995)
CISPR 32 2015 Electromagnetic compatibility of multimedia EN 55032 2015
equipment - Emission requirements
- - + A11 2020
Under preparation. Stage at time of preparation: prEN IEC 62057-1.
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SIST EN IEC 62052-11:2021
EN IEC 62052-11:2021 (E)
Publication Year Title EN/HD Year
JCGM 100 2008 Evaluation of measurement data – Guide - -
to the expression of uncertainty in
measurement. (GUM 1995 with minor
corrections)
- - Designation systems for steels – Part 1: EN 10027-1 2016
Steel names
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SIST EN IEC 62052-11:2021
IEC 62052-11
Edition 2.0 2020-06
INTERNATIONAL
STANDARD
Electricity metering equipment – General requirements, tests and test
conditions –
Part 11: Metering equipment
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 17.220.20 ISBN 978-2-8322-8437-7

Warning! Make sure that you obtained this publication from an authorized distributor.

® Registered trademark of the International Electrotechnical Commission
---------------------- Page: 9 ----------------------
SIST EN IEC 62052-11:2021
– 2 – IEC 62052-11:2020 © IEC 2020
CONTENTS

FOREWORD ........................................................................................................................... 8

INTRODUCTION ................................................................................................................... 10

1 Scope ............................................................................................................................ 13

2 Normative references .................................................................................................... 14

3 Terms and definitions .................................................................................................... 17

3.1 General definitions ................................................................................................ 17

3.2 Definitions related to the functional elements ........................................................ 21

3.3 Definitions of meter ports ...................................................................................... 24

3.4 Definitions of mechanical elements ....................................................................... 25

3.5 Definitions related to measurements ..................................................................... 27

3.6 Definitions related to external influences ............................................................... 30

3.7 Definition of tests .................................................................................................. 33

3.8 Definitions related to electromechanical meters .................................................... 33

3.9 Definitions related to meter marking and symbols ................................................. 34

4 Nominal electrical values ............................................................................................... 35

4.1 Voltages ............................................................................................................... 35

4.1.1 Nominal voltages ........................................................................................... 35

4.1.2 Voltage ranges .............................................................................................. 36

4.2 Currents ................................................................................................................ 36

4.2.1 Nominal currents ........................................................................................... 36

4.2.2 Starting current .............................................................................................. 36

4.2.3 Minimum current ............................................................................................ 36

4.2.4 Maximum current ........................................................................................... 37

4.2.5 Current ranges .............................................................................................. 37

4.3 Frequencies .......................................................................................................... 37

4.3.1 Nominal frequencies ...................................................................................... 37

4.3.2 Frequency ranges .......................................................................................... 37

4.4 Power consumption ............................................................................................... 37

5 Construction requirements ............................................................................................. 39

5.1 General ................................................................................................................. 39

5.2 Mechanical tests ................................................................................................... 39

5.2.1 Shock test ..................................................................................................... 39

5.2.2 Vibration test ................................................................................................. 40

5.3 Window ................................................................................................................. 40

5.4 Terminals – Terminal block(s) – Protective conductor terminal .............................. 40

5.5 Sealing provisions ................................................................................................. 40

5.5.1 General ......................................................................................................... 40

5.5.2 Meter case .................................................................................................... 40

5.5.3 Meter terminals .............................................................................................. 41

5.5.4 Sealing of detached indicating displays ......................................................... 41

5.5.5 Sealing of LPIT connections .......................................................................... 41

5.5.6 Sealing of meter configuration ....................................................................... 42

5.6 Display of measured values .................................................................................. 42

5.6.1 General ......................................................................................................... 42

5.6.2 Meters without indicating displays.................................................................. 42

5.6.3 Meters with indicating displays ...................................................................... 42

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5.7 Storage of measured values ................................................................................. 43

5.8 Pulse outputs ........................................................................................................ 43

5.8.1 General ......................................................................................................... 43

5.8.2 Optical test output ......................................................................................... 43

5.8.3 Electrical pulse output ................................................................................... 45

5.8.4 Operation indicator ........................................................................................ 45

5.9 Electrical pulse inputs ........................................................................................... 46

5.9.1 General characteristics .................................................................................. 46

5.9.2 Functional tests of electrical pulse inputs ....................................................... 46

5.10 Auxiliary power supply .......................................................................................... 46

6 Meter marking and documentation ................................................................................. 47

6.1 Meter accuracy class marking ............................................................................... 47

6.2 Meter marking ....................................................................................................... 47

6.3 Connection diagrams and terminal marking ........................................................... 51

6.4 Symbols ................................................................................................................ 51

6.4.1 General ......................................................................................................... 51

6.4.2 Symbols for the measuring elements ............................................................. 52

6.4.3 Symbols for transformer-operated meters ...................................................... 52

6.4.4 Identification of the displayed information ...................................................... 52

6.4.5 Marking of the measured quantity .................................................................. 53

6.4.6 Symbols of principal units used for meters (see Table 8) ............................... 53

6.4.7 Symbols for auxiliary devices ......................................................................... 54

6.4.8 Symbols for details of the suspension of the moving element ......................... 54

6.4.9 Symbols for communication ports .................................................................. 54

6.5 Documentation ...................................................................................................... 54

6.5.1 Installation manuals ....................................................................................... 54

6.5.2 Instruction for use .......................................................................................... 54

7 Metrological performance requirements and tests .......................................................... 54

7.1 General test conditions ......................................................................................... 54

7.2 Methods of accuracy verification ........................................................................... 56

7.3 Measurement uncertainty ...................................................................................... 56

7.4 Meter constant ...................................................................................................... 57

7.5 Initial start-up of the meter .................................................................................... 57

7.6 Test of no-load condition ....................................................................................... 58

7.7 Starting current test .............................................................................................. 58

7.8 Repeatability test .................................................................................................. 59

7.9 Limits of error due to variation of the current ......................................................... 59

7.10 Limits of error due to influence quantities .............................................................. 60

7.11 Time-keeping accuracy ......................................................................................... 60

8 Climatic requirements .................................................................................................... 60

8.1 General ................................................................................................................. 60

8.2 Environmental conditions ...................................................................................... 60

8.3 Tests of the effects of the climatic environments ................................................... 60

8.3.1 General test requirements ............................................................................. 60

8.3.2 Acceptance criteria ........................................................................................ 61

8.3.3 Dry heat test .................................................................................................. 61

8.3.4 Cold test ........................................................................................................ 61

8.3.5 Damp heat cyclic test .................................................................................... 61

8.3.6 Protection against solar radiation ................................................................... 62

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SIST EN IEC 62052-11:2021
– 4 – IEC 62052-11:2020 © IEC 2020

8.4 Durability .............................................................................................................. 62

9 The effects of external influence quantities and disturbances ........................................ 62

9.1 General ................................................................................................................. 62

9.2 Acceptance criteria ............................................................................................... 64

9.3 Electromagnetic compatibility (EMC) ..................................................................... 65

9.3.1 General ......................................................................................................... 65

9.3.2 Voltage dips and short interruptions ............................................................... 67

9.3.3 Electrostatic discharge immunity test ............................................................. 69

9.3.4 Radiated, radio-frequency, electromagnetic field immunity test – test

without current ............................................................................................... 69

9.3.5 Radiated, radio-frequency, electromagnetic field immunity test – test

with current.................................................................................................... 70

9.3.6 Electrical fast transient/burst immunity test .................................................... 70

9.3.7 Immunity to conducted disturbances, induced by radio-frequency fields ......... 71

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 ........... 71

9.3.9 Surge immunity test ....................................................................................... 72

9.3.10 Ring wave immunity test ................................................................................ 74

9.3.11 Damped oscillatory wave immunity test ......................................................... 74

9.3.12 External static magnetic fields ....................................................................... 75

9.3.13 Power frequency magnetic field immunity test ............................................... 76

9.3.14 Emission requirements .................................................................................. 76

9.4 Tests of immunity to other influence quantities ...................................................... 77

9.4.1 General ......................................................................................................... 77

9.4.2 Harmonics in the current and voltage circuits ................................................. 77

9.4.3 Voltage variation ............................................................................................ 78

9.4.4 Ambient temperature variation ....................................................................... 79

9.4.5 Interruption of phase voltage ......................................................................... 79

9.4.6 Frequency variation ....................................................................................... 80

9.4.7 Reversed phase sequence ............................................................................. 80

9.4.8 Auxiliary voltage variation .............................................................................. 80

9.4.9 Operation of auxiliary devices ........................................................................ 81

9.4.10 Short-time overcurrents ................................................................................. 81

9.4.11 Self-heating ................................................................................................... 82

9.4.12 Fast load current variations ........................................................................... 82

9.4.13 Earth fault ...................................................................................................... 83

10 Type test ....................................................................................................................... 83

10.1 Test conditions ..................................................................................................... 83

10.2 Type test report .................................................................................................... 84

Annex A (normative) Optical test output ............................................................................... 85

Annex B (normative) Class A and class B electrical pulse outputs ....................................... 86

B.1 Electrical characteristics of pulse output ............................................................... 86

B.2 Electrical output pulse waveform ........................................................................... 87

B.3 Test of electrical pulse output ............................................................................... 87

B.4 Test of pulse input ................................................................................................ 87

Annex C (normative) Electrical pulse output for special applications and long

distances according to IEC 60381-1:1982 ............................................................................. 89

C.1 Specified operating conditions and output pulse waveform .................................... 89

C.2 Test of pulse output .............................................................................................. 90

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IEC 62052-11:2020 © IEC 2020 – 5 –

C.3 Test of pulse input ................................................................................................ 91

Annex D (informative) Meter symbols and markings ............................................................. 92

Annex E (informative) Meter ports ........................................................................................ 97

Annex F (informative) Test set
...

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