prEN IEC 62053-22:2026

• Status: Not Published
• Publication Date: 02-Jan-2028
• ICS: 17.220.20 - Measurement of electrical and magnetic quantities
• Technical Committee: CLC/TC 13 - Equipment for electrical energy measurement and load control
• Current Stage: 4060 - Enquiry results established and sent to TC, SR, BTTF - Enquiry
• Start Date: 28-Aug-2026
• Completion Date: 28-Aug-2026
• Directive: 2014/30/EU - Directive 2014/30/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to electromagnetic compatibility (recast)
• Mandate: M/441 - Standardisation mandate to CEN, CENELEC and ETSI in the field of measuring instruments for the development of an open architecture for utility meters involving communication protocols enabling interoperability
• Mandate: M/552 - [C(2016) 7641 final] Standardisation request as regards harmonised standards in support of Directive 2014/30/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to electromagnetic compatibility
• Ref Project: oSIST prEN IEC 62053-22:2026 - Electricity metering equipment - Particular requirements - Part 22: Static meters for AC active energy (classes 0,1S, 0,2S and 0,5S)

• Revises: EN IEC 62053-22:2021 - Electricity metering equipment - Particular requirements - Part 22: Static meters for AC active energy (classes 0,1S, 0,2S and 0,5S)
• Effective Date: 08-Apr-2025
• Revises: EN IEC 62053-22:2021/A11:2021 - Electricity metering equipment - Particular requirements - Part 22: Static meters for AC active energy (classes 0,1S, 0,2S and 0,5S)
• Effective Date: 08-Apr-2025

prEN IEC 62053-22:2026 is a CLC draft standard in the IEC 62053 series for electricity metering equipment. It specifies particular requirements and type tests for static meters for AC active energy in accuracy classes 0,1S, 0,2S and 0,5S, mainly for manufacturers, test laboratories, certification bodies and buyers who need to check meter design and performance.

What does prEN IEC 62053-22:2026 specify?

prEN IEC 62053-22:2026 applies to transformer-operated and transducer-operated static watt-hour meters for measuring alternating-current active energy in 50 Hz or 60 Hz networks. It is written for type testing, so it is the document used to assess meter design rather than routine field operation.

The standard covers meters for networks up to 1 000 V AC, with all functional elements enclosed in one meter case except the display. It allows integrated or detached displays, or no display, and it also covers meters installed in a specified matching socket or rack.

The document also allows extra functions on the meter, but those extra functions are outside its own requirements. It excludes portable meters, meters for rolling stock, vehicles, ships and airplanes, laboratory and test equipment, reference standard meters, and multi-device systems where devices are physically remote from each other.

Annex	What it covers
Annex A	Informative comparison of relative error limits at reference conditions for classes 0,1S, 0,2S and 0,5S

What are the key requirements of prEN IEC 62053-22:2026?

prEN IEC 62053-22:2026 builds on IEC 62052-11 for general meter requirements, then adds class-specific limits and tests for the higher-accuracy AC active energy meters in this part. In practice, the standard tells you how to rate the meter, how to test it, and what accuracy shifts are acceptable under normal conditions and under disturbances.

Electrical values and operating ranges

Clause 4 sets the standard electrical values, including voltages, currents, frequencies and power consumption. For current, the document uses the concepts of starting, minimum, transitional and maximum current signals, and it gives different relationships for transformer-operated and transducer-operated meters.

For a reader, this matters because the meter design and the test set-up must match the declared current range. If the meter is intended for a transducer interface, the developer must check that the chosen transducer and meter combination supports the expected operating range.

Construction, marking and documentation

Clauses 5 and 6 require the meter construction, marking and documentation rules of IEC 62052-11 to apply. That means the physical build, identification and user documentation are treated as part of the meter’s compliance picture, not as optional extras.

In practice, this is what allows a purchaser or test lab to verify that the meter can be installed and identified correctly and that its declared ratings match its actual configuration.

Accuracy at reference conditions

Clause 7.9 sets the accuracy limits at reference conditions. The meter’s relative error must stay within the limits for its accuracy class, and the limits depend on current signal and phase angle.

For meters that measure energy in both directions, the limits apply in each direction. For meters rated for multiple connection modes, the tested connection mode is the one that supports the accuracy claim, so the test plan must match the intended wiring arrangement.

Influence quantities and disturbance tests

Clause 7.10 limits the error shift caused by influence quantities such as electromagnetic fields, fast transients, harmonics, voltage variation, temperature variation, phase reversal, auxiliary supply variation and short-time overcurrents. The tests are performed one influence at a time while the meter otherwise remains at reference conditions.

This section matters because it shows how stable the meter must remain when real-world disturbances appear on the installation. For buyers and laboratories, it defines which disturbance tests matter and how to judge the metrological shift caused by each one.

Climatic requirements and type testing

Clauses 8, 9 and 10 cover climatic requirements, external influences and type test requirements. The document also points back to IEC 62052-11 for the detailed test conditions and acceptance criteria, and it states that Table 6 of this document is used for acceptance criteria A.

In practice, this means the meter is not only checked for accuracy at nominal conditions, but also for performance under temperature, humidity and other environmental stresses that can appear in service.

What terms does prEN IEC 62053-22:2026 define?

The terms and definitions come from IEC 62052-11, but the following terms are central to understanding this part:

• AC - alternating current, the supply type used by the meters covered by this part.
• AC active energy - the active energy measured in AC networks for billing or energy accounting.
• Transformer-operated meter - a meter intended to work with current transformers or voltage transformers in the measurement chain.
• Transducer-operated meter - a meter intended to work with external transducers, and the standard also allows testing such meters without the transducers.
• Starting current signal - the low current level used to check whether the meter begins to register energy correctly.
• Minimum current signal - the lower operating current level used for accuracy checks near the bottom of the measuring range.
• Transitional current signal - the current point used in this part to separate parts of the accuracy range and to express other current signal levels.
• Type test - the test programme used to verify a meter design before production or approval.

Who uses prEN IEC 62053-22:2026?

prEN IEC 62053-22:2026 is used by meter manufacturers, test laboratories, utilities, metrology authorities and procurement teams. Manufacturers use it to design and declare meters for classes 0,1S, 0,2S and 0,5S.

Test laboratories and certification bodies use it to run type tests, check accuracy and confirm performance under influence quantities. Buyers, quality managers and utility engineers use it to compare meter offerings, write procurement specifications and verify that a meter suits a billing or submetering application.

What changed in prEN IEC 62053-22:2026 from the previous edition?

This third edition cancels and replaces the second edition published in 2020, and it is described as a technical revision. The significant technical changes stated in the document are:

• Normative references were updated.
• Transducer-operated meters were included in the scope, with testing without transducers.
• The transitional current was introduced.
• Starting current, minimum current and maximum current are now expressed as fractions of the transitional current.
• A test for ripple on DC supply voltage was introduced.
• The figures in Annex A were revised.

Which standards are used with prEN IEC 62053-22:2026?

IEC 62052-11 edition 2 CDV:2026 is the normative reference for this part. It supplies the general meter requirements, test conditions, methods and acceptance criteria that prEN IEC 62053-22:2026 builds on.

The introduction also names related parts that are used together with this standard:

Standard	Contribution
IEC 62052-31:2024	Product safety requirements and tests
IEC 62052-41:2022	Energy registration methods and requirements for multi-energy and multi-rate meters
IEC 62053-21 edition 3 CDV:2026	Static meters for AC active energy, classes 0,5, 1 and 2
IEC 62053-23 edition 3 CDV:2026	Static meters for reactive energy
IEC 62053-24 edition 3 CDV:2026	Static meters for fundamental component reactive energy
IEC 62053-41:2021	Static meters for DC energy
IEC 62055-31:2022	Static payment meters for active energy
IEC 62057-1:2023	Stationary meter test units
IEC 62057-3:2024	Automatic meter testing system
IEC 62058-11:2008	General acceptance inspection methods
IEC 62058-31:2008	Acceptance inspection for static meters for active energy
IEC TR 62059-11:2002	General dependability concepts
IEC TR 62059-21:2002	Collection of meter dependability data from the field
IEC 62059-32-1:2011	Stability testing by elevated temperature

What does the prEN IEC 62053-22:2026 document contain?

The document is organized into clauses on scope, normative references, terms and definitions, standard electrical values, construction, marking, accuracy requirements, climatic requirements, external influences and type tests. The accuracy chapter is the core of the document, because it combines reference-condition verification with disturbance and environmental testing.

It includes Tables 1 to 6 for current signals and error limits, and Annex A with two figures that compare relative error limits for the three accuracy classes at reference conditions. For a lab or certification team, these tables and figures are the practical tools used to set up tests, judge pass or fail, and compare class performance.

SLOVENSKI STANDARD
01-julij-2026
Oprema za merjenje električne energije - Posebne zahteve - 22. del: Statični števci
delovne energije (razredi 0,1 S, 0,2 S in 0,5 S)
Electricity metering equipment - Particular requirements - Part 22: Static meters for AC
active energy (classes 0,1S, 0,2S and 0,5S)
Elektrizitätszähler - Besondere Anforderungen - Teil 22: Elektronische
Wirkverbrauchszähler für Wechselstrom der Genauigkeitsklassen 0,1 S, 0,2 S und 0,5 S
équipement de comptage de l'électricité - Exigences particulières - Partie 22: Compteurs
statiques d'énergie active en courant alternatif (classes 0,1 S, 0,2 S et 0,5 S)
Ta slovenski standard je istoveten z: prEN IEC 62053-22:2026
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
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

13/2002/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 62053-22 ED3
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2026-06-05 2026-08-28
SUPERSEDES DOCUMENTS:
13/1949/CD, 13/1996/CC
IEC TC 13 : ELECTRICAL ENERGY MEASUREMENT AND CONTROL
SECRETARIAT: SECRETARY:
Hungary Mr Bela Bodi
OF INTEREST TO THE FOLLOWING COMMITTEES: HORIZONTAL FUNCTION(S):
TC 85,ACEC
ASPECTS CONCERNED:
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft
for Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.
This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of
which they are aware and to provide supporting documentation.
Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some
Countries” clauses to be included should this proposal proceed. Recipients are reminded that the CDV stage is
the final stage for submitting ISC clauses. (SEE AC/22/2007 OR NEW GUIDANCE DOC).

TITLE:
Electricity metering equipment - Particular requirements - Part 22: Static meters for AC active
energy (classes 0,1S, 0,2S and 0,5S)

PROPOSED STABILITY DATE: 2032
NOTE FROM TC/SC OFFICERS:
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IEC CDV 62053-22 © IEC 2026
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IEC CDV 62053-22 © IEC 2026
CONTENTS
CONTENTS . 1
FOREWORD . 3
INTRODUCTION . 6
1 Scope . 8
2 Normative references . 9
3 Terms and definitions . 9
4 Standard electrical values . 10
4.1 Voltages . 10
4.2 Currents . 10
4.2.1 Nominal current signal . 10
4.2.2 Starting current signal . 10
4.2.3 Minimum current signal . 10
4.2.4 Transitional current signal . 10
4.2.5 Maximum current signal . 10
4.3 Frequencies . 11
4.4 Power consumption. 11
5 Construction requirements . 11
6 Meter marking and documentation . 11
7 Accuracy requirements . 11
7.1 General test conditions . 11
7.2 Methods of accuracy verification . 11
7.3 Measurement uncertainty . 11
7.4 Meter constant . 11
7.5 Initial start-up of the meter . 11
7.6 Test of no-load condition . 11
7.7 Starting current test . 12
7.8 Repeatability test . 12
7.9 Limits of error due to variation of the current signal . 12
7.10 Limits of error shift due to influence quantities . 13
7.11 Time-keeping accuracy . 15
8 Climatic requirements . 15
9 The effects of external influences . 15
10 Type test . 15
Annex A (informative) Comparison of relative error limits at reference conditions for
meters of classes 0,1 S, 0,2 S and 0,5 S . 16
Bibliography . 18

Figure A.1 – Comparison of relative error limits for meters of classes 0,1 S, 0,2 S and
0,5 S, with I = 1 A and I = 2 A, at power factor = 1,0 . 16
n max
Figure A.2 – Comparison of relative error limits for meters of classes 0,1 S, 0,2 S, and
0,5 S, with I = 1 A and I = 2 A, at power factor = 0,5 inductive or 0,8 capacitive . 17
n max
Table 1 – Starting current signal . 10
Table 2 – Minimum current signal . 10
Table 3 – Transitional current signal . 10
IEC CDV 62053-22 © IEC 2026
Table 4 – Maximum current signal . 11
Table 5 – Limits of relative error at reference conditions (single-phase meters and
poly-phase meters with balanced loads or single-phase loads) . 12
Table 6 – Limits of relative error shift due to influence quantities . 13

IEC CDV 62053-22 © IEC 2026
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
Electricity metering equipment - Particular requirements -
Part 22: Static meters for AC active energy (classes 0,1S, 0,2S and 0,5S)

FOREWORD
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The object of IEC is to promote international co-operation on all questions concerning
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced
publications is indispensable for the correct application of this publication.
9) IEC draws attention to the possibility that the implementation of this document may involve
the use of (a) patent(s). IEC takes no position concerning the evidence, validity or applicability
of any claimed patent rights in respect thereof. As of the date of publication of this document,
IEC had not notice of (a) patent(s), which may be required to implement this document.
However, implementers are cautioned that this may not represent the latest information, which
IEC CDV 62053-22 © IEC 2026
may be obtained from the patent database available at https://patents.iec.ch and 9) IEC draws
attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed
patent rights in respect thereof. As of the date of publication of this document, IEC had not
notice of (a) patent(s), which may be required to implement this document. However,
implementers are cautioned that this may not represent the latest information, which may be
obtained from the patent database available at https://patents.iec.ch and www.iso.org/patents .
IEC shall not be held responsible for identifying any or all such patent rights. . IEC shall not be
held responsible for identifying any or all such patent rights.
IEC 62053-22 has been prepared by IEC technical committee 13: Electrical energy
measurement and control. It is an International Standard.
This third edition cancels and replaces the second edition published in 2020. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) Normative references have been updated;
b) Transducer-operated meters included in scope (tested without transducers);
c) The transitional current has been introduced;
d) The starting current, minimum current and maximum current have been expressed as
fractions of the transitional current;
e) The test "Ripple on DC supply voltage" has been introduced;
f) Figures in Annex A have been revised.
The text of this International Standard is based on the following documents:
Draft Report on voting
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English [change
language if necessary].
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
A list of all parts in the IEC 62053 series, published under the general title Electricity metering
equipment – Particular requirements, can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
– reconfirmed,
– withdrawn, or
– revised.
NOTE The attention of National Committees is drawn to the fact that equipment manufacturers and testing
organizations may need a transitional period following publication of a new, amended or revised IEC publication in
IEC CDV 62053-22 © IEC 2026
which to make products in accordance with the new requirements and to equip themselves for conducting new or
revised tests.
It is the recommendation of the committee that the content of this publication be adopted for implementation nationally
not earlier than 2 years from the date of publication.
IEC CDV 62053-22 © IEC 2026
INTRODUCTION
This part of IEC 62053 is to be used with relevant parts of the IEC 62052, IEC 62058 and
IEC 62059 series, Electricity metering equipment, with the IEC 62055 series, Electricity
metering – Payment systems and with the IEC 62057 series, Electrical energy meters:
IEC 62052-11 edition 2 CDV:2026 , Electricity metering equipment – General requirements,
tests and test conditions – Part 11: Metering equipment
IEC 62052-31:2024, Electricity metering equipment – General requirements, tests and test
conditions – Part 31: Product safety requirements and tests
IEC 62052-41:2022, Electricity metering equipment – General requirements, tests and test
conditions – Part 41: Energy registration methods and requirements for multi-energy and multi-
rate meters
IEC 62053-21 edition 3 CDV :2026, Electricity metering equipment – Particular requirements –
Part 21: Static meters for AC active energy (classes 0,5, 1 and 2)
IEC 62053-23 edition 3 CDV :2026, Electricity metering equipment – Particular requirements –
Part 23: Static meters for reactive energy (classes 2 and 3)
IEC 62053-24 edition 3 CDV :2026, Electricity metering equipment – Particular requirements –
Part 24: Static meters for fundamental component reactive energy (classes 0,5 S, 1 S, 1, 2 and
3)
IEC 62053-41:2021, Electricity metering equipment – Particular requirements – Part 41: Static
meters for DC energy (classes 0,5 and 1)
IEC 62055-31:2022, Electricity metering – Payment systems – Part 31: Particular requirements
– Static payment meters for active energy (classes 1 and 2)
IEC 62057-1:2023, Electrical energy meters – Test equipment, techniques and procedures –
Part 1: Stationary meter test units (MTUs)
IEC 62057-3:2024, Electrical energy meters – Test equipment, techniques and procedures –
Part 3: Automatic meter testing system (AMTS)
IEC 62058-11:2008, Electricity metering equipment (AC) – Acceptance inspection – Part 11:
General acceptance inspection methods
IEC 62058-31:2008, Electricity metering equipment (AC) – Acceptance inspection – Part 31:
Particular requirements for static meters for active energy (classes 0,2 S, 0,5 S, 1 and 2)
IEC TR 62059-11:2002, Electricity metering equipment – Dependability – Part 11: General
concepts
IEC TR 62059-21:2002, Electricity metering equipment – Dependability – Part 21: Collection of
meter dependability data from the field
IEC 62059-32-1:2011, Electricity metering equipment – Dependability – Part 32-1: Durability –
Testing of the stability of metrological characteristics by applying elevated temperature
This part is a standard for type testing electricity meters. It covers the particular requirements
for meters, being used indoors and outdoors in large quantities worldwide. It does not deal with
special implementations (such as metering-part and/or displays in separate housings).
IEC CDV 62053-22 © IEC 2026
This document is intended to be used in conjunction with IEC 62052-11 edition 2 CDV:2026
and with IEC 62052-31:2024. When any requirement in this document concerns an item already
covered in IEC 62052-11 edition 2 CDV:20
...