EN IEC 62052-11:2021
(Main)Electricity metering equipment - General requirements, tests and test conditions - Part 11: Metering equipment
Electricity metering equipment - 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
IEC 62052-11:2020 spécifie les exigences et essais correspondants, ainsi que leurs conditions appro-priées, pour les essais de type des compteurs d'électricité en courant alternatif et en courant continu. Le présent document décrit les exigences fonctionnelles, mécaniques, électriques et de marquage, les méthodes d'essai et les conditions d'essai, y compris en ce qui concerne l'immunité aux influences externes, couvrant les environnements électromagnétiques et climatiques. Le présent document s'applique aux équipements de comptage de l'électricité conçus pour: • mesurer et piloter l'énergie électrique sur les réseaux électriques (secteur) de tension jusqu'à 1 000 V en courant alternatif ou 1 500 V en courant continu; • avoir tous les éléments fonctionnels, y compris les modules complémentaires, incorporés dans ou formant un boîtier de compteur unique, à l'exception des af-ficheurs; • fonctionner avec des afficheurs intégrés (compteurs électromécaniques ou sta-tiques); • fonctionner avec des afficheurs séparés ou sans afficheur (compteurs sta-tiques); • être installés dans une embase ou un bâti correspondant spécifié; • assurer, en option, des fonctions autres que celles relatives au comptage de l'énergie électrique. Les compteurs conçus pour être utilisés avec des transformateurs de mesure de faible puissance (LPIT, Low Power Instrument Transformer, définis dans la série IEC 61869) ne peuvent être soumis à des essais de conformité au présent document et aux docu-ments pertinents de la série IEC 62053 que si ces compteurs et leurs LPIT sont soumis à l'essai ensemble comme des compteurs à branchement direct. Le présent document ne s'applique pas: • aux compteurs dont la tension phase-neutre déduite des tensions nominales dé-passe 1 000 V en courant alternatif ou 1 500 V en courant continu; • aux compteurs destinés à être connectés à des transformateurs de mesure de faible puissance (LPIT, définis dans la série de normes IEC 61869) lorsqu'ils sont soumis à l'essai sans ces transformateurs; • aux systèmes de comptage comprenant plusieurs dispositifs (sauf des LPIT) physi-quement éloignés les uns des autres; • aux compteurs portatifs; • aux compteurs utilisés dans le matériel roulant, les véhicules, les navires et les avions; • aux équipements de laboratoire et d'essai des compteurs; • aux compteurs étalons de référence; • aux interfaces de communication avec l'élément indicateur du compteur; • aux embases ou bâtis correspondants utilisés pour l'installation des équipements de comptage de l'électricité; • à toute fonction complémentaire assurée par les compteurs d'énergie électrique. Le présent document ne couvre pas les mesures de détection et de prévention des ten-tatives frauduleuses visant à compromettre les performances du compteur (falsification) Cette deuxième édition annule et remplace la première édition parue en 2003, ainsi que son amendement 1:2016. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: voir Annex O.
Oprema za merjenje električne energije - Splošne zahteve, preskusi in preskuševalni pogoji - 11. del: Merilna oprema
Standard IEC 62052-11:2020 (E) določa zahteve in povezane preskuse z ustreznimi pogoji za tipsko preskušanje merilnikov električne energije za izmenični in enosmerni tok. Ta dokument podrobno opisuje funkcionalne, mehanske in električne zahteve ter zahteve glede označevanja, preskusne metode in preskusne pogoje, vključno z odpornostjo na zunanje vplive, ki zajemajo elektromagnetno okolje in podnebje.
Ta dokument se uporablja za opremo za merjenje električne energije, zasnovano:
• za merjenje in nadzor električne energije v električnih omrežjih z napetostjo do 1000 V pri izmeničnem toku ali 1500 V pri enosmernem toku;
• z vsemi funkcionalnimi elementi, vključno z dodatnimi moduli, v enotnem ohišju, razen prikazovalnikov;
• za delovanje z integriranimi prikazovalniki (elektromehanski ali statični merilniki);
• za delovanje z ločenimi prikazovalniki ali brez prikazovalnika (samo statični merilniki);
• za namestitev v določeno ustrezno vtičnico ali stojalo;
• za zagotavljanje dodatnih funkcij po izbiri poleg tistih, ki so namenjene merjenju električne energije.
Merilnike, zasnovane za delovanje z instrumentnimi transformatorji majhne moči (LPIT, kot so opredeljeni v skupini standardov IEC 61869), je mogoče preskusiti glede skladnosti s tem dokumentom in ustreznimi dokumenti iz skupine IEC 62053 le, če se takšni merilniki in njihovi instrumentni transformatorji majhne moči preskusijo skupaj kot neposredno povezani merilniki.
Ta dokument se uporablja tudi za pomožna vhodna in izhodna vezja, indikatorje obratovanja in izhode preskusne opreme za merjenje električne energije.
Zajema tudi običajne vidike preskušanja natančnosti, kot so referenčni pogoji, ponovljivost in merjenje negotovosti.
Ta dokument se ne uporablja za:
• merilnike, pri katerih napetost med linijskim in nevtralnim vodnikom, izpeljana iz nazivnih napetosti, presega 1000 V pri izmeničnem toku ali 1500 V pri enosmernem toku;
• merilnike, namenjene za povezavo z instrumentnimi transformatorji majhne moči (LPIT, kot so opredeljeni v skupini standardov IEC 61869), kadar se preskušajo brez takih transformatorjev;
• merilne sisteme, sestavljene iz več naprav (razen LPIT), ki so medsebojno fizično oddaljene;
• prenosne merilnike;
• merilnike, ki se uporabljajo v tirnih vozilih, avtomobilih, ladjah in letalih;
• laboratorijsko in preskusno opremo za merilnike;
• standardne referenčne merilnike;
• podatkovne vmesnike, povezane v register števca;
• ustrezne vtičnice ali stojala, ki se uporabljajo za namestitev opreme za merjenje električne energije;
• vse dodatne funkcije, ki jih zagotavljajo merilniki električne energije.
Ta dokument ne zajema ukrepov za odkrivanje in preprečevanje poskusov goljufije z vplivanjem na delovanje merilnika (nedovoljeno poseganje).
Druga izdaja razveljavlja in nadomešča prvo izdajo, objavljeno leta 2003, in njeno dopolnilo 1:2016. Ta izdaja je tehnično popravljena izdaja.
Ta izdaja v primerjavi s prejšnjo vključuje naslednje pomembne tehnične spremembe:
a) odstranjene so vse varnostne zahteve glede merilnikov; varnostne zahteve za merilnike so zajete v standardu IEC 62052-31:2015;
b) vključene so zahteve glede porabe električne energije merilnika in zahteve glede napetosti iz standarda IEC 62053-61; standard IEC 62053-61 je umaknjen;
c) vključene so zahteve za simbole merilnikov iz standarda IEC 62053-52; standard IEC 62053-52 je umaknjen;
d) vključene so zahteve za merilnike izhodnih impulzov iz standarda IEC 62053-31; standard IEC 62053-31 je umaknjen;
e) dodane so nove zahteve in preskusi, med drugim: merilniki z ločenimi prikazovalniki in merilniki brez prikazovalnika, določbe o plombiranju merilnikov; merilna negotovost in ponovljivost; natančnost merjenja časa; tip tes
General Information
Relations
Overview
EN IEC 62052-11:2021 (identical to IEC 62052-11:2020) sets the general requirements, tests and test conditions for type testing of electricity metering equipment. It covers AC and DC electricity meters designed for networks up to 1 000 V AC or 1 500 V DC, defining functional, mechanical, electrical and marking requirements, together with test methods and environmental/immunity conditions. The standard also addresses common aspects of accuracy testing such as reference conditions, repeatability and measurement uncertainty.
Key topics and technical requirements
- Scope of application: meters with all functional elements enclosed in a single case (except detached displays), meters with integrated or detached displays, and meters installed in matching sockets/racks. Meters that use Low Power Instrument Transformers (LPITs) can be tested under this document only when LPIT and meter are tested together.
- Excluded items: portable meters, meters for rolling stock/vehicles/ships/airplanes, metering systems with physically remote multiple devices, data interfaces to the register, and measures against tampering.
- Construction & mechanical tests: shock, vibration and environmental tests to verify durability and mechanical integrity.
- Electrical & metrological tests: measurement accuracy, repeatability, measurement uncertainty, power consumption and voltage requirements.
- Environmental and EMC immunity: tests for electromagnetic interference and climatic robustness (references include IEC 61000 series for EMC and IEC 60068 series for environmental testing).
- Displays, pulse I/O and indicators: requirements for integrated and detached displays, electrical and optical pulse outputs, operation indicators and electrical pulse inputs.
- Sealing & installation: sealing provisions for cases, terminals, detached displays and LPIT connections; requirements for installation in sockets/racks.
- Marking, documentation and symbols: meter marking, accuracy class marking, connection diagrams and standardized meter symbols.
- New/updated elements in this edition: removal of safety requirements (now in IEC 62052-31), inclusion of power consumption, meter symbols and pulse output requirements from withdrawn IEC 62053 parts, plus added tests for detached/no-display meters, sealing, measurement uncertainty, repeatability and time-keeping accuracy.
Practical applications - who uses this standard
- Meter manufacturers and designers - to ensure type tests meet international metrological, EMC and environmental requirements.
- Test laboratories and conformity assessors - to create test plans and validate meter compliance for market entry.
- Utilities and grid operators - to specify procurement requirements and evaluate meter performance under network conditions.
- Regulators and metrology institutes - to reference in regulations and conformity schemes for billing accuracy.
Related standards (for testing and interfaces)
- IEC 62052-31 (product safety)
- IEC 62053 series (performance/accuracy for specific meter types)
- IEC 61869 series (LPITs/instrument transformers)
- IEC 61000 series (EMC) and IEC 60068 series (environmental testing)
- IEC 62056/DLMS-COSEM (data exchange)
Keywords: electricity metering equipment, IEC 62052-11, AC meters, type testing, metrological requirements, measurement uncertainty, pulse outputs, EMC immunity, environmental testing.
Frequently Asked Questions
EN IEC 62052-11:2021 is a standard published by CLC. Its full title is "Electricity metering equipment - General requirements, tests and test conditions - Part 11: Metering equipment". This standard covers: 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
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
EN IEC 62052-11:2021 is classified under the following ICS (International Classification for Standards) categories: 17.220.20 - Measurement of electrical and magnetic quantities. The ICS classification helps identify the subject area and facilitates finding related standards.
EN IEC 62052-11:2021 has the following relationships with other standards: It is inter standard links to EN 62052-11:2003, EN 62052-11:2003/A1:2017, EN 62052-11:2003/A1:2017/AC:2018-04, EN IEC 62052-11:2021/A12:2024, EN IEC 62052-11:2021/A11:2022. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN IEC 62052-11:2021 is associated with the following European legislation: EU Directives/Regulations: 2014/30/EU, 2014/32/EU; Standardization Mandates: M/404, M/541, M/552. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
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Standards Content (Sample)
SLOVENSKI STANDARD
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
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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
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.
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
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
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.
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
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
– 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
IEC 62052-11:2020 © IEC 2020 – 3 –
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
– 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
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-up for EMC tests . 100
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 . 102
Annex H (normative) Test circuit diagrams for testing influence of harmonics and
interharmonics . 103
Annex I (informative) Short time overcurrent test waveform . 109
Annex J (informative) Fast load current variation test . 110
Annex K (normative) Electromagnet for testing the influence of externally produced
magnetic fields. 111
K.1 Permanent magnet for testing the influence of external static magnetic field . 111
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) . 111
Annex L (normative) Test circuit diagram for the test of immunity to earth fault . 113
Annex M (informative) Meter current range . 114
Annex N (informative) Application to Branch Circuit Power Meters . 115
N.1 Overview. 115
N.2 Definitions. 115
N.3 General . 115
N.4 Cross-channel influences . 116
N.5 Channel configuration and sealing for multi-branch meters . 116
N.6 Verification for multi-branch meters . 116
Annex O (informative) Overview of the technical changes . 117
Annex P (informative) Test schedule – Recommended test sequences . 118
Figure A.1 – Test arrangement for the test output . 85
Figure A.2 – Waveform of the optical test output . 85
Figure B.1 – Physical interface of the electrical pulse output . 86
Figure B.2 – Electrical output pulse waveform . 87
Figure B.3 – Pulse output test set-up . 87
Figure B.4 – Pulse input test set-up . 88
Figure C.1 – Output pulse waveform . 90
Figure C.2 – Pulse output test set-up . 90
Figure C.3 – Pulse input test set-up . 91
Figure E.1 – Typical port configuration of a directly connected meter (example) . 97
Figure E.2 – Typical port configuration of a transformer operated meter (example) . 98
Figure E.3 – Typical port configuration of a LPIT operated meter with a detached
indicating display (example) . 98
Figure F.1 – Test set-up for the electrical fast transient/burst immunity test for
transformer oper-ated meters: each port (Mains, CT, HLV, ELV) is tested separately by
adding the coupling device to the respective port . 100
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 . 101
– 6 – IEC 62052-11:2020 © IEC 2020
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) . 102
Figure H.1 – Test circuit diagram (informative, test of influence of interharmonics and
odd harmonics) . 103
Figure H.2 – Burst fired wave-form (interharmonics) . 104
Figure H.3 – Informative distribution of interharmonic content of burst-fired waveform
(the Fourier analysis is not complete) . 104
Figure H.4 – Phase fired waveform (odd harmonics) – 90° fired waveform . 105
Figure H.5 – Informative distribution of harmonic content of 90° phase fired waveform
(the Fourier analysis is not complete) . 105
Figure H.6 – Phase fired waveform (odd harmonics) – 45° fired waveform . 106
Figure H.7 – Phase fired waveform (odd harmonics) – 135° fired waveform . 106
Figure H.8 – Test circuit diagram for half-wave rectification (DC and even harmonics) . 107
Figure H.9 – Half-wave rectified waveform (DC and even harmonics) . 107
Figure H.10 – Informative distribution of harmonic content of half-wave rectified
waveform (the Fourier analysis is not complete) . 108
Figure K.1 – Electromagnet for testing the influence of external static magnetic field
with magneto-motive force of 1 000 At (ampere-turns) . 112
Figure L.1 – Circuit to simulate earth fault condition in phase 1 . 113
Figure L.2 – Voltages at the meter under test . 113
Figure M.1 – Meter current range . 114
Table 1 – Nominal voltages . 35
Table 2 – Voltage ranges . 36
Table 3 – Preferred values of nominal currents . 36
Table 4 – Current ranges . 37
Table 5 – Frequency ranges . 37
Table 6 – Maximum power consumption. 38
Table 7 – Marking and documentation requirements . 49
Table 8 – Symbols of principal units used for meters . 53
Table 9 – Voltage and current balance . 55
Table 10 – Reference conditions . 55
Table 11 – Repeatability test points . 59
Table 12 – Environmental conditions . 60
Table 13 – Summary of the tests of immunity to influence quantities . 63
Table 14 – Summary of the tests of immunity to disturbances . 64
Table 15 – Acceptance criteria . 65
Table 16 – Voltage dips, short interruptions and voltage variations immunity tests . 67
Table 17 – Voltage dips, short interruptions and voltage variations on DC input power
port immunity tests . 68
Table 18 – Surge immunity test voltage . 73
Table 19 – Evaluation of primary meter functions under influence of voltage variation . 79
Table B.1 – Specified operating conditions . 86
Table B.2 – Test of pulse output . 87
Table B.3 – Test of pulse input device . 88
IEC 62052-11:2020 © IEC 2020 – 7 –
Table C.1 – Specified operating conditions . 89
Table C.2 – Test of pulse output device . 91
Table C.3 – Test of pulse input device . 91
Table D.1 – Examples of voltage marking according to network voltage . 92
Table D.2 – Symbols for measuring elements . 92
Table D.3 – Marking of the measured quantity (examples) . 93
Table D.4 – Inscriptions indicating the accuracy class and the meter constant
(examples) . 93
Table D.5 – Symbols for transformer-operated meters (examples) . 94
Table D.6 – Tariff function symbols (examples) . 94
Table D.7 – Symbols for tariff function (examples) . 94
Table D.8 – Symbols for auxiliary devices (examples) . 95
Table D.9 – Symbols for details of the suspension of the moving element (examples) . 95
Table D.10 – Symbols for communication ports (examples) . 96
Table N.1 – Cross-channel influence test conditions for multi-circuit meters . 116
– 8 – IEC 62052-11:2020 © IEC 2020
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRICITY METERING EQUIPMENT –
GENERAL REQUIREMENTS, TESTS AND TEST CONDITIONS –
Part 11: Metering equipment
FOREWORD
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indispensable for the correct application of this pub
...
The EN IEC 62052-11:2021 standard provides a comprehensive framework for the testing and requirements of electricity metering equipment, specifically focusing on AC and DC electricity meters. Its scope is well-defined, addressing a wide range of equipment that is designed to measure and control electrical energy across various electrical networks with voltages up to 1,000 V AC and 1,500 V DC. The standard encapsulates essential functional, mechanical, and electrical requirements necessary for type testing, making it a pivotal reference for manufacturers and regulators in the energy sector. One of the key strengths of this standard is its detailed specification of test methods and conditions, which includes immunity to electromagnetic interference and varying climatic conditions. This ensures that electricity metering equipment can perform reliably under diverse environmental circumstances, ultimately leading to enhanced accuracy in energy measurement. The inclusion of comprehensive definitions for metering equipment, such as requirements for integrated and detached indicating displays, demonstrates the standard’s versatility and applicability to a wide range of operational setups. Moreover, the EN IEC 62052-11:2021 also addresses the common aspects of accuracy testing, laying out parameters for reference conditions, repeatability, and measurement uncertainty. This focus on accuracy is paramount, as precise measurements are crucial for effective energy management and billing practices. By setting clear benchmarks for performance, the standard supports the integrity and reliability of metering systems. The recent revision introduces significant technical changes that strengthen its relevance. It removes outdated safety requirements that are now covered under IEC 62052-31:2015 and includes new mandates related to meter power consumption, voltage specifications, and meter pulse output devices, showcasing a proactive approach to modernized metering technologies. Additionally, the revised standard emphasizes new requirements such as sealing provisions and time-keeping accuracy, which bolster the overall performance and reliability of electricity metering equipment. In summary, the EN IEC 62052-11:2021 standard is crucial for stakeholders in the electricity metering industry, providing essential guidelines that enhance the accuracy, reliability, and adaptability of metering equipment across different applications. Its robust framework, updated technical specifications, and clear operational guidelines make it an indispensable resource for manufacturers, testers, and users in the electrical energy sector.
La norme EN IEC 62052-11:2021 établit des exigences générales pour les équipements de mesure de l'électricité, ainsi que les tests et conditions d'essai associés. Cette norme s'applique aux compteurs d'électricité destinés à mesurer et à contrôler l'énergie électrique dans des réseaux électriques avec des tensions allant jusqu'à 1 000 V AC ou 1 500 V DC. Elle s'avère cruciale dans le cadre de l'industrialisation et de la régulation des équipements de mesure, garantissant ainsi la précision et la fiabilité des dispositifs de comptage. Parmi les principaux points forts de la norme, on trouve son large éventail d'exigences fonctionnelles, mécaniques et électriques, ainsi qu'une attention particulière portée aux méthodes d'essai et aux conditions d'essai. Ceci inclut l'immunité aux influences externes dans des environnements électromagnétiques et climatiques variés, ce qui est essentiel pour garantir la robustesse des équipements de mesure dans des conditions d'utilisation réelles. La norme souligne également les exigences pour les éléments fonctionnels des compteurs, incluant les modules additionnels et les dispositifs d'affichage intégrés ou détachés. Cela démontre une compréhension approfondie des besoins des utilisateurs tout en favorisant la flexibilité dans la conception des équipements, qui peuvent également fournir des fonctions supplémentaires au-delà de la simple mesure de l'énergie électrique. Un autre aspect pertinent de cette norme est son caractère évolutif, ayant intégré des modifications significatives par rapport à l'édition précédente. Elle supprime des exigences de sécurité des compteurs pour les reformuler dans une autre norme, tout en intégrant de nouvelles réglementations sur la consommation d'énergie des compteurs et sur les dispositifs de sortie de pulse. Ces changements montrent une proactivité dans l'adaptation aux nouvelles technologies et aux besoins du marché. Cependant, la norme ne s'applique pas à certains types de compteurs, tels que ceux dépassant les limites de tension spécifiées ou ceux utilisés dans des systèmes de comptage complexes non adjacents. De plus, elle exclut certaines mesures préventives contre la fraude, ce qui pourrait être un domaine d'amélioration pour les futures révisions. En résumé, la norme EN IEC 62052-11:2021 se positionne comme un cadre de référence incontournable pour la mise en conformité des équipements de mesure de l'électricité, en alliant rigueur technique et adaptabilité. Son importance réside dans la capacité à garantir la précision des mesures, essentielle pour le bon fonctionnement des réseaux électriques modernes.
Die Norm EN IEC 62052-11:2021 stellt einen wesentlichen Rahmen für die Anforderungen an elektrizitätsmessende Geräte dar. Sie umfasst typisierte Tests und Bedingungen für die Typprüfung von Wechselstrom- und Gleichstromzählern bis zu einer Spannung von 1.000 V AC und 1.500 V DC. Die Stärke dieser Norm liegt in ihrer umfassenden Herangehensweise, die sowohl funktionale als auch mechanische, elektrische und kennzeichnende Anforderungen berücksichtigt. Besonders hervorzuheben ist die detaillierte Ausführung der Testmethoden und Testbedingungen, die sicherstellen, dass die Messgeräte auch gegen äußere Einflüsse wie elektromagnetische Störungen und klimatische Bedingungen widerstandsfähig sind. Dies ist von grundlegender Bedeutung für die Zuverlässigkeit und Genauigkeit der Messtechnik in elektrischen Netzwerken. Die Norm ist relevant für eine Vielzahl von Anwendungen, da sie die Betriebsanforderungen für Messgeräte beschreibt, die sowohl mit integrierten als auch mit abgetrennten Anzeigeelementen arbeiten. Darüber hinaus ermöglicht sie zusätzliche Funktionalitäten über die reine Messung elektrischer Energie hinaus, was ihre Anpassungsfähigkeit an verschiedene Anforderungen der Industrie unterstreicht. Ein weiterer wichtiger Aspekt der EN IEC 62052-11:2021 ist die Einbeziehung von Anforderungen an die Genauigkeit der Messungen, einschließlich der Bedingungen für Referenzmessungen, Wiederholbarkeit und Unsicherheitsmessung. Diese Punkte sind entscheidend für die Qualitätssicherung in der Messtechnik und tragen zur Wahrung hoher Standards in der Energieverteilung und -messung bei. Mit der Aktualisierung gegenüber der vorherigen Ausgabe wurden mehrere bedeutende technische Änderungen vorgenommen, darunter die Integration neuer Anforderungen, die jetzt auch Geräte mit abgetrennten Anzeigen und solche ohne Anzeige umfassen. Diese Aspekte erweitern den Anwendungsbereich der Norm und passen sie an die sich verändernden technologischen Bedingungen an. Insgesamt bietet die EN IEC 62052-11:2021 eine solide Grundlagenstruktur für die Entwicklung und Prüfung elektrizitätsmessender Geräte, indem sie klare Anforderungen und Prüfstandards definiert, die für Hersteller und Anwender von größter Bedeutung sind.
SIST EN IEC 62052-11:2021は、電力計測機器に関する一般的要件、試験、試験条件を定める重要なドキュメントです。この標準は、交流および直流の電力メーターに関する要件と関連試験を包括的にカバーしており、その適用範囲は、電圧が最大1,000V ACまたは1,500V DCの電力ネットワーク上で電気エネルギーを測定・制御するために設計された機器に及びます。 この標準の強みは、機能的、機械的、電気的要件やマーキング要件を詳細に規定している点です。また、外部影響からの耐性を含む試験方法や試験条件も掘り下げており、電磁環境や気候環境に対する適応性を確保しています。特に、統合表示装置を持つメーターや、離れた表示装置を持つメーター、または表示装置を持たないメーター（静的メーター）の操作要件を整理しています。 さらに、低電力計測変圧器（LPIT）を使用するメーターに関する試験要件や、精度試験に関する一般的な側面（基準条件、再現性、不確かさの測定）にも触れています。この標準は、電力計測の高度化に伴う新たな要求事項を取り入れており、例えば、表示装置が分離されているメーターや、表示装置を持たないメーターに関する新しい試験要求が追加されています。 標準はまた、2003年に発行された初版の改訂版であり、技術的な改正を反映しています。特に、メーターの安全要件がIEC 62052-31:2015に移行されることで、より専門的かつ一貫した対応が可能になりました。 SIST EN IEC 62052-11:2021は、電力メーターが直面する現在の技術的および規制の要求に適合しており、電気エネルギーの計測に関与するすべての関係者にとって、重要な参照基準となっています。
SIST EN IEC 62052-11:2021 문서는 전기계량기 장비의 일반 요구사항, 시험 및 시험 조건을 규정하고 있습니다. 이 표준은 교류 및 직류 전기 미터의 형식 시험을 위한 요구사항과 해당 시험 조건을 자세히 설명하며, 기능적, 기계적, 전기적 및 마킹 요구사항을 포함합니다. 또한 전자기 및 기후 환경을 포함한 외부 영향을 견디는 능력에 대한 테스트 방법과 조건도 포함되어 있습니다. 이 표준의 주요 강점 중 하나는 전기 네트워크(전압 최대 1,000 V AC 또는 1,500 V DC)에 대한 전기 에너지를 측정하고 제어하는 장비에 적용된다는 점입니다. 모든 기능 요소가 단일 미터 케이스로 형성되며, 추가 모듈이 포함될 수 있는지 여부를 명시합니다. 또한 통합 디스플레이 또는 분리된 표시 장치를 가진 전자기계적 또는 정지 미터의 요구사항을 다루고 있어 다양한 설치 환경에서도 유연하게 작동할 수 있습니다. 이 표준은 전기 에너지 측정을 위한 보조 입력 및 출력 회로, 동작 표시기, 시험 출력을 포함하여 관련 장비의 여러 측면을 포괄합니다. 정밀도 테스트와 관련한 공통 사항들, 즉 기준 조건, 반복성, 불확실성 측정도 다루므로, 전기계량기 장비의 전반적인 성능과 정확성을 보장하는 데 기여합니다. 또한, 이 문서는 이전 버전에서 두드러진 기술적 변화를 반영하고 있으며, 전기계량기의 안전 요구사항을 제거한 점과 무전력 기호 및 펄스 출력 장치에 대한 요구사항을 포함하여 기술 변경사항을 명시하고 있습니다. 이는 사용자의 요구와 전기 뱅크 통신의 변화에 보다 적합한 기준을 제공하는 데 중점을 두고 있습니다. 최종적으로 SIST EN IEC 62052-11:2021 표준은 전기계량기 장비에 대한 포괄적이고 현대적인 요구사항을 규정하여 전기 에너지 측정의 정확성과 안정성을 보장하며, 관련 시스템 및 장비의 일관성 있는 성능을 유지하는 데 중심적인 역할을 합니다.
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