SIST EN IEC 62052-31:2025
(Main)Electricity metering equipment (AC) - General requirements, tests and test conditions - Part 31: Product safety requirements and tests (IEC 62052-31:2024)
Electricity metering equipment (AC) - General requirements, tests and test conditions - Part 31: Product safety requirements and tests (IEC 62052-31:2024)
IEC 62052-31:2024 specifies general safety requirements and associated tests, with their appropriate conditions for type testing of directly connected, transformer-operated or transducer-operated AC and DC electricity meters and load control equipment. 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 communication 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);
• wall-mounted or to be installed in specified matching sockets or racks;
• optionally, provide additional functions other than those for measurement of electrical energy.
This document also applies to transducer-operated meters or meters designed for operation with Low Power Instrument Transformers (LPIT) or sensors (as defined in the IEC 61869 series).
When equipment in scope of this document is designed to be installed in a specified matching socket, then the requirements apply to, and the tests are performed on, equipment installed in its specified matching socket. However, requirements for sockets and inserting / removing the meters from the socket are outside the scope of this document.
This document is also applicable to auxiliary input and output circuits, operation indicators, and test outputs of equipment for electrical energy measurement.
Equipment used in conjunction with equipment for electrical energy measurement and control may need to comply with additional safety requirements. See also Clause 13.
This document does not apply to:
• meters rated to operate with voltage exceeding 1 000 V AC, or 1 500 V DC;
• metering systems comprising multiple devices physically remote from one another;
• portable meters;
• meters used in rolling stock, vehicles, ships and airplanes;
• laboratory and mobile meter test equipment;
• reference standard meters;
• conventional or low power instrument transformers;
• equipment with solid-state or other non-electromechanical supply and load control switches.
The safety requirements of this document are based on the following assumptions:
• metering equipment has been installed correctly;
• metering equipment is used generally by ordinary persons, including meter readers and consumers of electrical energy. In many cases, it is installed in a way that it is freely accessible. Its terminal covers cannot be removed, and its case cannot be opened without removing seals (if present) and using a tool;
• during normal use all terminal covers, covers and barriers providing protection against accessing hazardous live parts are in place;
• for installation, configuration, maintenance and repair it may be necessary to remove terminal cover(s), (a part of) the case or barriers so that hazardous live parts may become accessible. Such activities are performed by skilled persons, who have been suitably trained to be aware of working procedures necessary to ensure safety. Therefore, safety requirements covering these conditions are out of the Scope of this document.
This second edition cancels and replaces the first edition published in 2015. This edition constitutes a technical revision. Please see the foreword of IEC 62052-31 f
Wechselstrom-Elektrizitätszähler - Allgemeine Anforderungen, Prüfungen und Prüfbedingungen - Teil 31: Sicherheitsanforderungen und Prüfungen (IEC 62052-31:2024)
Équipement de comptage de l'électricité (CA) - Exigences générales, essais et conditions d'essai - Partie 31: Exigences et essais sur la sécurité de produit (IEC 62052-31:2024)
IEC 62052-31:2024 spécifie les exigences de sécurité générales et les essais associés, avec leurs conditions appropriées pour les essais de type des compteurs d’électricité en courant alternatif et en courant continu à branchement direct, alimentés par transformateurs ou transducteurs, ainsi que des équipements de pilotage.
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) avec une tension allant jusqu’à 1 000 V en courant alternatif ou 1 500 V en courant continu;
• avoir tous les éléments fonctionnels, y compris les modules de communication complémentaires, incorporés dans ou formant un boîtier de compteur unique, à l’exception des afficheurs;
• fonctionner avec des afficheurs intégrés (compteurs électromécaniques ou statiques);
• fonctionner avec des afficheurs séparés ou sans afficheur (compteurs statiques uniquement);
• être montés au mur ou installés dans une embase ou un bâti correspondant spécifié;
• assurer en option des fonctions autres que celles relatives au comptage de l’énergie électrique.
Le présent document s’applique également aux compteurs alimentés par transducteurs ou aux compteurs conçus pour fonctionner avec des transformateurs de mesure de faible puissance (LPIT) ou des capteurs (tels que ceux définis dans la série IEC 61869).
NOTE 6 Pour les compteurs conçus pour fonctionner avec des LPIT, seule l’unité de comptage est considérée comme un dispositif à basse tension. Si les LPIT sont assignés pour des tensions supérieures à 1 000 V en courant alternatif ou à 1 500 V en courant continu, la combinaison de l’unité de comptage et des LPIT n’est pas un dispositif à basse tension.
Lorsqu’un équipement relevant du domaine d’application du présent document est conçu pour être installé dans une embase correspondante spécifiée, les exigences s’appliquent à l’équipement installé dans son embase correspondante spécifiée et les essais sont réalisés sur cet équipement. Toutefois, les exigences concernant les embases et l’insertion/le retrait des compteurs de l’embase ne font pas partie du domaine d’application du présent document.
Le présent document s’applique également aux circuits auxiliaires d’entrée et de sortie, aux indicateurs de fonctionnement et aux sorties d’essai des équipements de mesure de l’énergie électrique.
Les équipements utilisés conjointement avec des équipements de mesure et de contrôle de l’énergie électrique peuvent devoir se conformer à des exigences de sécurité supplémentaires. Voir aussi l’Article 13.
Le présent document ne s’applique pas:
• aux compteurs assignés pour fonctionner avec une tension dépassant 1 000 V en courant alternatif ou 1 500 V en courant continu;
• aux systèmes de comptage comprenant plusieurs dispositifs physiquement 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 mobiles d’essai de compteurs;
• aux compteurs étalons de référence;
• aux transformateurs de mesure conventionnels ou de faible puissance;
• aux équipements équipés d’auxiliaires de commande d’alimentation et de charge non électromécaniques à semiconducteur ou autres.
Les exigences de sécurité du présent document reposent sur les hypothèses suivantes:
• l’équipement de comptage a été installé correctement;
• l’équipement de comptage est généralemen
Oprema za merjenje električne energije (izmenični tok) - Splošne zahteve, preskusi in pogoji preskušanja - 31. del: Varnostne zahteve in preskusi proizvodov (IEC 62052-31:2024)
Standard IEC 62052-31:2024 določa splošne varnostne zahteve in povezane preskuse z ustreznimi pogoji za tipsko preskušanje neposredno povezanih, transformatorskih ali pretvorniških merilnikov električne energije za izmenični in enosmerni tok. Ta dokument se uporablja za opremo za merjenje električne energije:
• 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 komunikacijskimi 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 stensko namestitev ali namestitev v posebej zasnovano vtičnico ali stojalo;
• za zagotavljanje dodatnih funkcij po izbiri poleg tistih, ki so namenjene merjenju električne energije.
Ta dokument se uporablja tudi za pretvorniške merilnike ali merilnike, zasnovane za delovanje z instrumentnimi transformatorji majhnih moči (LPIT) ali senzorji (kot je opredeljeno v skupini standardov IEC 61869).
Ko je oprema, ki spada na področje uporabe tega dokumenta, zasnovana za namestitev v posebej zasnovano vtičnico, zahteve veljajo za opremo, ko je nameščena v vtičnico in ko se izvedejo preskusi na opremi. Zahteve za vtičnice ter vstavljanje in odstranjevanje merilnikov iz vtičnice ne spadajo na področje uporabe tega dokumenta.
Ta dokument se uporablja tudi za pomožna vhodna in izhodna vezja, indikatorje obratovanja in izhode preskusne opreme za merjenje električne energije.
Oprema, uporabljena skupaj z opremo za merjenje in nadzor električne energije, bo morda morala biti skladna z dodatnimi zahtevami za varnost. Glej tudi točko 13.
Ta dokument se ne uporablja za:
• merilnike za delovanje z nazivno napetostjo nad 1000 V pri izmeničnem toku ali 1500 V pri enosmernem toku;
• sisteme za merjenje, sestavljene iz več naprav, ki so medsebojno fizično oddaljene;
• prenosne merilnike;
• merilnike, ki se uporabljajo v tirnih vozilih, avtomobilih, ladjah in letalih;
• laboratorijsko in mobilno preskusno opremo za merilnike;
• standardne referenčne merilnike;
• konvencionalne transformatorje ali instrumentne transformatorje majhnih moči;
• opremo s polprevodniškim napajanjem ali drugim napajanjem, ki ni elektromehansko, in stikali za nadzor obremenitve.
Varnostne zahteve tega standarda temeljijo na naslednjih predpostavkah:
• oprema za merjenje je bila pravilno nameščena;
• opremo za merjenje na splošno uporabljajo nestrokovnjaki, vključno z odčitovalci števcev in uporabniki električne energije. V številnih primerih je oprema nameščena tako, da je lahko dostopna. Pokrove priključkov je mogoče odstraniti in omarice odpreti samo, če se odstranijo tesnila (če obstajajo), pri čemer je treba uporabiti orodje;
• med običajno uporabo so nameščeni vsi pokrovi priključkov, pokrovi in pregrade, ki zagotavljajo zaščito pred dostopom do nevarnih delov pod napetostjo;
• za namestitev, konfiguracijo, vzdrževanje in popravilo je pokrove priključkov, ohišje (ali del ohišja) ali pregrade morda treba odstraniti, tako da je omogočen dostop do nevarnih delov pod napetostjo. Ta dejanja mora opravljati izkušeno osebje, ki je ustrezno usposobljeno in je seznanjeno z delovnimi postopki, potrebnimi za zagotavljanje varnosti. Varnostne zahteve, ki zajemajo te pogoje, tako ne spadajo na področje uporabe tega dokumenta.
Druga izdaja razveljavlja in nadomešča prvo izdajo, objavljeno leta 2015. Ta izdaja je tehnično popravljena izdaja. Glej uvod standarda IEC 62052-31.
General Information
Relations
Overview
EN IEC 62052-31:2024 - titled Electricity metering equipment - Product safety requirements and tests - is the CLC-endorsed second edition of IEC 62052-31. It specifies general product safety requirements, associated type tests and test conditions for directly connected, transformer‑operated or transducer‑operated AC and DC electricity meters and load‑control equipment. The standard applies to equipment up to 1 000 V AC or 1 500 V DC, including devices with integrated or detached displays, wall‑mounted meters, meters installed in specified sockets/racks, and devices that include add‑on communication modules enclosed in the meter case.
Key Topics
- Scope and applicability: Defines which meter types are covered (directly connected, transformer‑operated, transducer‑operated, LPIT/sensor‑operated) and clear exclusions (portable meters, meters for rolling stock, systems with devices remote from each other, equipment above voltage limits).
- Product safety requirements: Requirements for enclosures, terminal covers, insulation coordination, and protection against accidental access to hazardous live parts under normal use.
- Type tests and test conditions: Procedures and environmental conditions for type testing (normal, extended, extreme), including testing in single‑fault conditions where appropriate.
- Auxiliary circuits and outputs: Safety coverage for auxiliary inputs/outputs, operation indicators and test outputs used with metering equipment.
- Assumptions for safety: Expectations that meters are correctly installed, used by ordinary persons (including meter readers), with protective covers in place; access to live parts during maintenance is assumed to be by skilled persons.
- Marking and information: Requirements for labels, durability of markings and information for selection, installation and commissioning.
Applications and who uses it
EN IEC 62052-31:2024 is intended for:
- Meter manufacturers - for safe product design, internal safety validation and pre‑certification type testing.
- Test laboratories and certification bodies - to perform accredited type tests and safety conformity assessments.
- Utilities and system integrators - to specify compliant meters for distribution networks and smart‑meter deployments.
- Regulatory and procurement teams - to reference product safety requirements in tenders and national adoption (CENELEC implementation). Practical uses include product development, compliance demonstration, supplier evaluation and ensuring safe field operation of meters and load control devices.
Related standards
Relevant companion and referenced standards include IEC 62052-11 (general metering requirements), the IEC 61869 series (instrument transformer definitions and LPITs/sensors), and numerous IEC/EN standards for insulation, EMC and fire‑safety referenced in the normative annex. EN IEC 62052-31:2024 supersedes the 2015 edition and aligns with current CENELEC/IEC safety practice for electricity metering equipment.
Keywords: EN IEC 62052-31:2024, electricity metering equipment, product safety requirements, meter type testing, AC/DC meters, LPIT, transducer‑operated meters, meter safety tests.
Frequently Asked Questions
SIST EN IEC 62052-31:2025 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Electricity metering equipment (AC) - General requirements, tests and test conditions - Part 31: Product safety requirements and tests (IEC 62052-31:2024)". This standard covers: IEC 62052-31:2024 specifies general safety requirements and associated tests, with their appropriate conditions for type testing of directly connected, transformer-operated or transducer-operated AC and DC electricity meters and load control equipment. 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 communication 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); • wall-mounted or to be installed in specified matching sockets or racks; • optionally, provide additional functions other than those for measurement of electrical energy. This document also applies to transducer-operated meters or meters designed for operation with Low Power Instrument Transformers (LPIT) or sensors (as defined in the IEC 61869 series). When equipment in scope of this document is designed to be installed in a specified matching socket, then the requirements apply to, and the tests are performed on, equipment installed in its specified matching socket. However, requirements for sockets and inserting / removing the meters from the socket are outside the scope of this document. This document is also applicable to auxiliary input and output circuits, operation indicators, and test outputs of equipment for electrical energy measurement. Equipment used in conjunction with equipment for electrical energy measurement and control may need to comply with additional safety requirements. See also Clause 13. This document does not apply to: • meters rated to operate with voltage exceeding 1 000 V AC, or 1 500 V DC; • metering systems comprising multiple devices physically remote from one another; • portable meters; • meters used in rolling stock, vehicles, ships and airplanes; • laboratory and mobile meter test equipment; • reference standard meters; • conventional or low power instrument transformers; • equipment with solid-state or other non-electromechanical supply and load control switches. The safety requirements of this document are based on the following assumptions: • metering equipment has been installed correctly; • metering equipment is used generally by ordinary persons, including meter readers and consumers of electrical energy. In many cases, it is installed in a way that it is freely accessible. Its terminal covers cannot be removed, and its case cannot be opened without removing seals (if present) and using a tool; • during normal use all terminal covers, covers and barriers providing protection against accessing hazardous live parts are in place; • for installation, configuration, maintenance and repair it may be necessary to remove terminal cover(s), (a part of) the case or barriers so that hazardous live parts may become accessible. Such activities are performed by skilled persons, who have been suitably trained to be aware of working procedures necessary to ensure safety. Therefore, safety requirements covering these conditions are out of the Scope of this document. This second edition cancels and replaces the first edition published in 2015. This edition constitutes a technical revision. Please see the foreword of IEC 62052-31 f
IEC 62052-31:2024 specifies general safety requirements and associated tests, with their appropriate conditions for type testing of directly connected, transformer-operated or transducer-operated AC and DC electricity meters and load control equipment. 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 communication 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); • wall-mounted or to be installed in specified matching sockets or racks; • optionally, provide additional functions other than those for measurement of electrical energy. This document also applies to transducer-operated meters or meters designed for operation with Low Power Instrument Transformers (LPIT) or sensors (as defined in the IEC 61869 series). When equipment in scope of this document is designed to be installed in a specified matching socket, then the requirements apply to, and the tests are performed on, equipment installed in its specified matching socket. However, requirements for sockets and inserting / removing the meters from the socket are outside the scope of this document. This document is also applicable to auxiliary input and output circuits, operation indicators, and test outputs of equipment for electrical energy measurement. Equipment used in conjunction with equipment for electrical energy measurement and control may need to comply with additional safety requirements. See also Clause 13. This document does not apply to: • meters rated to operate with voltage exceeding 1 000 V AC, or 1 500 V DC; • metering systems comprising multiple devices physically remote from one another; • portable meters; • meters used in rolling stock, vehicles, ships and airplanes; • laboratory and mobile meter test equipment; • reference standard meters; • conventional or low power instrument transformers; • equipment with solid-state or other non-electromechanical supply and load control switches. The safety requirements of this document are based on the following assumptions: • metering equipment has been installed correctly; • metering equipment is used generally by ordinary persons, including meter readers and consumers of electrical energy. In many cases, it is installed in a way that it is freely accessible. Its terminal covers cannot be removed, and its case cannot be opened without removing seals (if present) and using a tool; • during normal use all terminal covers, covers and barriers providing protection against accessing hazardous live parts are in place; • for installation, configuration, maintenance and repair it may be necessary to remove terminal cover(s), (a part of) the case or barriers so that hazardous live parts may become accessible. Such activities are performed by skilled persons, who have been suitably trained to be aware of working procedures necessary to ensure safety. Therefore, safety requirements covering these conditions are out of the Scope of this document. This second edition cancels and replaces the first edition published in 2015. This edition constitutes a technical revision. Please see the foreword of IEC 62052-31 f
SIST EN IEC 62052-31:2025 is classified under the following ICS (International Classification for Standards) categories: 17.220.20 - Measurement of electrical and magnetic quantities; 19.080 - Electrical and electronic testing; 91.140.50 - Electricity supply systems. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN IEC 62052-31:2025 has the following relationships with other standards: It is inter standard links to SIST EN 62052-31:2016. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST EN IEC 62052-31:2025 is associated with the following European legislation: EU Directives/Regulations: 2014/30/EU. 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-februar-2025
Nadomešča:
SIST EN 62052-31:2016
Oprema za merjenje električne energije (izmenični tok) - Splošne zahteve, preskusi
in pogoji preskušanja - 31. del: Varnostne zahteve in preskusi proizvodov (IEC
62052-31:2024)
Electricity metering equipment (AC) - General requirements, tests and test conditions -
Part 31: Product safety requirements and tests (IEC 62052-31:2024)
Wechselstrom-Elektrizitätszähler - Allgemeine Anforderungen, Prüfungen und
Prüfbedingungen - Teil 31: Sicherheitsanforderungen und Prüfungen (IEC 62052-
31:2024)
Équipement de comptage de l'électricité (CA) - Exigences générales, essais et
conditions d'essai - Partie 31: Exigences et essais sur la sécurité de produit (IEC 62052-
31:2024)
Ta slovenski standard je istoveten z: EN IEC 62052-31:2024
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 62052-31
NORME EUROPÉENNE
EUROPÄISCHE NORM December 2024
ICS 19.080; 91.140.50 Supersedes EN 62052-31:2016
English Version
Electricity metering equipment - General requirements, tests and
test conditions - Part 31: Product safety requirements and tests
(IEC 62052-31:2024)
Équipement de comptage de l'électricité - Exigences Wechselstrom-Elektrizitätszähler - Allgemeine
générales, essais et conditions d'essai - Partie 31: Anforderungen, Prüfungen und Prüfbedingungen - Teil 31:
Exigences et essais sur la sécurité de produit Sicherheitsanforderungen und Prüfungen
(IEC 62052-31:2024) (IEC 62052-31:2024)
This European Standard was approved by CENELEC on 2024-11-29. 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,
Türkiye 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
© 2024 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 62052-31:2024 E
European foreword
The text of document 13/1923/FDIS, future edition 2 of IEC 62052-31, prepared by TC 13 "Electrical
energy measurement and control" was submitted to the IEC-CENELEC parallel vote and approved by
CENELEC as EN IEC 62052-31:2024.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2025-12-31
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2027-12-31
document have to be withdrawn
This document supersedes EN 62052-31:2016 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.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 62052-31:2024 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standard indicated:
IEC 60060-1:2010 NOTE Approved as EN 60060-1:2010 (not modified)
IEC 60068-1:2013 NOTE Approved as EN 60068-1:2014 (not modified)
IEC 60079-0:2017 NOTE Approved as EN IEC 60079-0:2018 (not modified) +A11:2024
IEC 60079-11:2023 NOTE Approved as EN IEC 60079-11:2024 (not modified)
IEC 60228:2004 NOTE Approved as EN 60228:2005 (not modified)
IEC 60255-27:2023 NOTE Approved as EN IEC 60255-27:— (not modified)
IEC 60364-1:2005 NOTE Approved as HD 60364-1:2008 +A11:2017
IEC 60364-4-41:2005 NOTE Approved as HD 60364-4-41:2007 +A11:2017 +A12:2019
IEC 60664-3:2016 NOTE Approved as EN 60664-3:2017 (not modified)
IEC 60670-24:2011 NOTE Approved as EN 60670-24:2013 +A11:2023
IEC 60898-1:2015 NOTE Approved as EN 60898-1:2019 +A11:2024
Under preparation. Stage at the time of publication: FprEN IEC 60255-27:2022.
IEC 60947-1:2020 NOTE Approved as EN IEC 60947-1:2021 (not modified)
IEC 60990:2016 NOTE Approved as EN 60990:2016 (not modified)
IEC 61051-2:2021 NOTE Approved as EN IEC 61051-2:2021 (not modified)
IEC 61558-1:2017 NOTE Approved as EN IEC 61558-1:2019 (not modified)
IEC 61558-2-16:2021 NOTE Approved as EN IEC 61558-2-16:— (not modified)
IEC 61643-11:2011 NOTE Approved as EN 61643-11:2012 +A11:2018
IEC 61643-311 NOTE Approved as EN 61643-311
IEC 61643-321 NOTE Approved as EN 61643-321
IEC 61643-331:2020 NOTE Approved as EN IEC 61643-331:2020 (not modified)
IEC 61643-341 NOTE Approved as EN IEC 61643-341
IEC 61869 (series) NOTE Approved as EN IEC 61869 (series)
IEC 61869-99:2022 NOTE Approved as EN IEC 61869-99:2022 (not modified)
IEC 62052-21:2004 NOTE Approved as EN 62052-21:2004 (not modified)
IEC 62054-11:2004 NOTE Approved as EN 62054-11:2004 (not modified)
IEC 62054-21:2004 NOTE Approved as EN 62054-21:2004 (not modified)
IEC 62057-1:2023 NOTE Approved as EN IEC 62057-1:2023 (not modified)
IEC 62058-11:2008 NOTE Approved as EN 62058-11:2010 (modified)
IEC 62477-1:2022 NOTE Approved as EN IEC 62477-1:2023 (not modified)
ISO 14971:2019 NOTE Approved as EN ISO 14971:2019 (not modified) +A11:2021
Under preparation. Stage at the time of publication: FprEN IEC 61558-2-16:2021.
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.cencenelec.eu.
Publication Year Title EN/HD Year
IEC 60027-1 1992 Letters symbols to be used in electrical EN 60027-1 2006
technology - Part 1: General
+ A1 1997 - -
+ A2 2005 + A2 2007
IEC 60068-2-75 2014 Environmental testing - Part 2-75: Tests - EN 60068-2-75 2014
Test Eh: Hammer tests
IEC 60068-2-78 2012 Environmental testing - Part 2-78: Tests - EN 60068-2-78 2013
Test Cab: Damp heat, steady state
IEC 60085 2007 Electrical insulation - Thermal evaluation EN 60085 2008
and designation
IEC 60112 2020 Method for the determination of the proof EN IEC 60112 2020
and the comparative tracking indices of
solid insulating materials
IEC 60269-3 (mod) 2010 Low-voltage fuses - Part 3: Supplementary HD 60269-3 2010
requirements for fuses for use by unskilled
persons (fuses mainly for household or
similar applications) - Examples of
standardized systems of fuses A to F
IEC 60332-1-2 2004 Tests on electric and optical fibre cables EN 60332-1-2 2004
under fire conditions - Part 1-2: Test for
vertical flame propagation for a single
insulated wire or cable - Procedure for 1
kW pre-mixed flame
- - + A11 2016
- - + A12 2020
IEC 60332-2-2 2004 Tests on electric and optical fibre cables EN 60332-2-2 2004
under fire conditions - Part 2-2: Test for
vertical flame propagation for a single
small insulated wire or cable - Procedure
for diffusion flame
IEC 60364-4-44 2007 Low-voltage electrical installations - Part 4- HD 60364-4-442 2012
(mod) 44: Protection for safety - Protection
against voltage disturbances and
electromagnetic disturbances
HD 60364-4-444 2010
IEC 60384-14 2023 Fixed capacitors for use in electronic EN IEC 60384-14 2023
equipment - Part 14: Sectional
specification - Fixed capacitors for
electromagnetic interference suppression
and connection to the supply mains
IEC 60417-DB-12M - Graphical symbols for use on equipment - -
IEC 60529 1989 Degrees of protection provided by EN 60529 1991
enclosures (IP Code)
- - + corrigendum May 1993
+ A1 1999 + A1 2000
+ A2 2013 + A2 2013
IEC 60617-DB-12M - Graphical symbols for diagrams - -
IEC 60664-1 2020 Insulation coordination for equipment EN IEC 60664-1 2020
within low-voltage supply systems - Part 1:
Principles, requirements and tests
IEC 60695-2-11 2021 Fire hazard testing - Part 2-11: EN IEC 60695-2-11 2021
Glowing/hot-wire based test methods -
Glow-wire flammability test method for end
products (GWEPT)
IEC 60695-11-10 2013 Fire hazard testing - Part 11-10: Test EN 60695-11-10 2013
flames - 50 W horizontal and vertical flame
test methods
IEC 60721-3-0 2020 Classification of environmental conditions - EN IEC 60721-3-0 2020
Part 3-0: Classification of groups of
environmental parameters and their
severities - Introduction
IEC 60721-3-3 2019 Classification of environmental conditions - EN IEC 60721-3-3 2019
Part 3-3: Classification of groups of
environmental parameters and their
severities - Stationary use at weather
protected locations
IEC 60950-1 2005 Information technology equipment - Safety - -
- Part 1: General requirements
+ A1 2009 - -
+ A2 2013 - -
IEC 61000-4-5 2014 Electromagnetic compatibility (EMC) - Part EN 61000-4-5 2014
4-5: Testing and measurement techniques
- Surge immunity test
+ A1 2017 + A1 2017
IEC 61010-1 2010 Safety requirements for electrical EN 61010-1 2010
equipment for measurement, control, and
laboratory use - Part 1: General
requirements
+ A1 (mod) 2016 + A1 2019
3 4
+ A2 — + A2 —
IEC 61010-2-030 2017 Safety requirements for electrical EN IEC 61010-2- 2021
equipment for measurement, control, and 030
laboratory use - Part 2-030: Particular
requirements for equipment having testing
or measuring circuits
- - + A11 2021
IEC 61032 1997 Protection of persons and equipment by EN 61032 1998
enclosures - Probes for verification
IEC 61180 2016 High-voltage test techniques for low- EN 61180 2016
voltage equipment - Definitions, test and
procedure requirements, test equipment
IEC 61851-23 2014 Electric vehicle conductive charging EN 61851-23 2014
system - Part 23: DC electric vehicle
charging station
IEC 62052-11 2020 Electricity metering equipment - General EN IEC 62052-11 2021
requirements, tests and test conditions -
Part 11: Metering equipment
- - + A11 2022
- - + A12 2024
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 62368-1 2018 Audio/video, information and EN IEC 62368-1 2020
communication technology equipment -
Part 1: Safety requirements
- - + A11 2020
ISO 75-2 2013 Plastics - Determination of temperature of EN ISO 75-2 2013
deflection under load - Part 2: Plastics and
ebonite
ISO 3864-1 2011 Graphical symbols - Safety colours and - -
safety signs - Part 1: Design principles for
safety signs and safety markings
ISO 7000 2019 Graphical symbols for use on equipment - - -
Registered symbols
Under preparation. Stage at time of publication: IEC 61010-1:2010/A2 (ED.3) CDV.
Under preparation. Stage at time of publication: EN 61010-1:2010/prA2.
IEC 62052-31 ®
Edition 2.0 2024-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electricity metering equipment – General requirements, tests and test
conditions –
Part 31: Product safety requirements and tests
Équipement de comptage de l'électricité – Exigences générales, essais et
conditions d'essai –
Partie 31: Exigences et essais sur la sécurité de produit
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 19.080, 91.140.50 ISBN 978-2-8322-9302-7
– 2 – IEC 62052-31:2024 © IEC 2024
CONTENTS
FOREWORD . 9
INTRODUCTION . 12
1 Scope . 13
1.1 General . 13
1.2 Aspects included in scope . 14
1.3 Aspects excluded from scope . 15
1.4 Verification. 15
1.5 Environmental conditions . 15
1.5.1 Normal environmental conditions . 15
1.5.2 Extended environmental conditions . 16
1.5.3 Extreme environmental conditions . 16
2 Normative references . 17
3 Terms and definitions . 19
3.1 Equipment and states of equipment . 19
3.2 Parts, accessories, and functional elements . 19
3.3 Quantities . 25
3.4 Tests . 28
3.5 Safety terms . 28
3.6 Insulation . 33
3.7 Terms related to switches of metering equipment . 37
4 Tests . 39
4.1 General . 39
4.2 Type test – sequence of tests . 40
4.3 Reference test conditions. 40
4.3.1 Atmospheric conditions . 40
4.3.2 State of the equipment . 41
4.4 Testing in single fault condition . 44
4.4.1 General . 44
4.4.2 Application of fault conditions . 44
4.4.3 Duration of tests . 47
4.4.4 Conformity after application of fault conditions . 47
5 Information and marking requirements . 47
5.1 General . 47
5.2 Labels, signs and signals . 50
5.2.1 General . 50
5.2.2 Durability of markings . 53
5.3 Information for selection . 53
5.3.1 General . 53
5.3.2 General information . 53
5.3.3 Information specific for meters . 54
5.3.4 Information specific for stand-alone tariff and load control equipment . 54
5.3.5 Information related to LCS . 54
5.4 General information for installation and commissioning . 55
5.4.1 General . 55
5.4.2 Handling and mounting . 55
5.4.3 Enclosure . 55
IEC 62052-31:2024 © IEC 2024 – 3 –
5.4.4 Connections . 56
5.4.5 Auxiliary power supply . 58
5.4.6 Supply for external devices . 58
5.4.7 Self-consumption . 59
5.4.8 Commissioning . 59
5.5 General information for use . 59
5.5.1 General . 59
5.5.2 Display, push buttons and other controls . 59
5.5.3 Switches . 60
5.5.4 Connection to user's equipment . 60
5.6 General information for maintenance . 60
5.6.1 Maintenance instructions . 60
5.6.2 Cleaning . 60
5.6.3 Batteries . 60
6 Protection against electrical shock . 61
6.1 General requirements . 61
6.2 Determination of accessible parts . 62
6.2.1 General . 62
6.2.2 Examination . 62
6.2.3 Openings above parts that are hazardous live . 63
6.2.4 Openings for pre-set controls . 63
6.2.5 Wiring terminals . 63
6.3 Limit values for accessible parts . 64
6.3.1 General . 64
6.3.2 Levels in normal condition . 64
6.3.3 Levels in single fault condition . 65
6.4 Primary means of protection (protection against direct contact) . 67
6.4.1 General . 67
6.4.2 Equipment case . 68
6.4.3 Basic insulation . 68
6.4.4 Impedance . 68
6.5 Additional means of protection in case of single fault conditions (protection
against indirect contact) . 68
6.5.1 General . 68
6.5.2 Protective bonding . 69
6.5.3 Supplementary insulation and reinforced insulation . 72
6.5.4 Protective impedance . 73
6.5.5 Automatic disconnection of the supply . 73
6.5.6 Current- or voltage-limiting device . 73
6.6 Connection to external circuits . 74
6.6.1 General . 74
6.6.2 Terminals for external circuits . 74
6.6.3 Terminals for stranded conductors . 74
6.7 Insulation requirements . 75
6.7.1 General – electric stresses, overvoltages and working voltages . 75
6.7.2 The nature of insulation . 78
6.7.3 Insulation requirements for mains circuits . 81
6.7.4 Insulation requirements for non-mains circuits . 90
– 4 – IEC 62052-31:2024 © IEC 2024
6.7.5 Insulation in circuits with special voltage values not addressed in 6.7.3
or 6.7.4 . 97
6.7.6 Reduction of transient overvoltages by the use of overvoltage limiting
devices . 104
6.7.7 Insulation requirements between circuits and parts . 104
6.8 Constructional requirements for protection against electric shock . 108
6.8.1 General . 108
6.8.2 Insulating materials . 108
6.8.3 Color coding . 108
6.8.4 Equipment case . 108
6.8.5 Terminal blocks . 109
6.8.6 Insulating materials of SCS and LCS . 109
6.8.7 Terminals . 110
6.8.8 Requirements for current circuits . 112
6.9 Safety related electrical tests . 119
6.9.1 Overview . 119
6.9.2 Test conditions . 121
6.9.3 Dielectric test methods . 123
6.9.4 Dielectric testing on complete equipment . 126
6.9.5 Dielectric tests on sub-assemblies . 132
6.9.6 Electrical tests on current circuits of directly connected meters without
SCS . 137
6.9.7 Electrical tests on current circuits of directly connected meters with
SCS . 137
6.9.8 Electrical tests on LCS . 144
6.9.9 Cemented joints test . 147
6.9.10 Thermal cycling . 148
7 Protection against mechanical hazards . 148
7.1 General . 148
7.2 Sharp edges . 148
7.3 Provisions for lifting and carrying . 149
7.4 Wall mounting . 149
8 Resistance to mechanical stresses . 150
8.1 General . 150
8.2 Spring hammer test . 150
9 Protection against spread of fire . 150
9.1 General . 150
9.2 Eliminating or reducing the sources of ignition within the equipment . 151
9.3 Containment of fire within the equipment, should it occur . 151
9.3.1 General . 151
9.3.2 Construction requirements . 152
9.4 Limited-energy circuit . 153
9.5 Overcurrent protection . 154
10 Equipment temperature limits and resistance to heat . 154
10.1 Surface temperature limits for protection against burns . 154
10.2 Temperature limits for terminals . 155
10.3 Temperatures of internal parts . 156
10.4 Temperature test . 158
10.5 Resistance to heat . 159
IEC 62052-31:2024 © IEC 2024 – 5 –
10.5.1 Non-metallic enclosures . 159
10.5.2 Insulating materials . 160
11 Protection against penetration of dust and water . 160
11.1 General . 160
11.2 Test for protection against ingress of dust and foreign objects . 161
11.3 Test for protection against ingress of water . 161
12 Protection against liberated gases and substances explosion and implosion . 162
12.1 Batteries and battery charging . 162
12.1.1 Mounting of batteries . 162
12.1.2 Battery circuits . 162
12.1.3 Tests related to batteries and charging circuits . 163
13 Components and sub-assemblies . 164
13.1 General . 164
13.2 Mains transformers tested outside equipment . 165
13.3 Printed wiring boards . 165
13.4 Components bridging insulation . 166
13.5 Surge protective devices (SPDs, transient overvoltage limiting circuits) . 166
13.5.1 General use of SPDs . 166
13.5.2 SPD overheating test . 167
13.6 Capacitors . 167
14 Hazards resulting from application – Reasonably foreseeable misuse . 168
15 Risk assessment . 168
Annex A (normative) Measuring circuits for touch current . 169
A.1 Measuring circuit for AC with frequencies up to 1 MHz and for DC . 169
A.2 Measuring circuits for sinusoidal AC with frequencies up to 100 Hz and for
DC . 170
A.3 Current measuring circuit for electrical burns at high frequencies . 170
A.4 Current measuring circuit for wet location . 171
Annex B (informative) Examples for insulation between parts . 173
B.1 General . 173
B.2 Example of a meter protected by reinforced insulation . 173
B.3 Example of a meter protected by double insulation . 175
Annex C (informative) Examples for directly connected meters equipped with SCS and
LCS . 177
Annex D (normative) Test circuit diagram for the test of long-term overvoltage
withstand . 179
Annex E (normative) Test circuit diagram for short current test on the current circuit of
directly connected meters . 180
Annex F (informative) Examples of voltage tests . 182
F.1 General . 182
F.2 Example of a directly connected meter with SCS . 182
F.3 Example of a transformer operated meter with auxiliary power supply . 186
F.4 Example of an LPCT-operated meter with direct voltage connections . 191
Annex G (normative) Additional AC voltage tests for electromechanical meters . 196
Annex H (normative) Test equipment for cable flexion and pull test . 197
Annex I (normative) Routine tests . 199
I.1 General . 199
I.2 Protective earth . 199
– 6 – IEC 62052-31:2024 © IEC 2024
I.3 High-voltage test for mains circuits . 199
I.4 Mains circuits with voltage-limiting devices . 200
Annex J (informative) Examples of battery protection . 201
Annex K (informative) Transient overvoltage requirements in TC 13 standards . 202
Annex L (informative) Electricity meters in LVDC systems . 203
Annex M (informative) Component standards . 205
Bibliography . 206
Figure 1 – Measurements through openings in enclosures . 63
Figure 2 – Capacitance level versus voltage in normal condition and single fault
condition (see 6.3.2c) and 6.3.3c)) . 66
Figure 3 – Maximum duration of short-term accessible voltages in single fault
condition (see 6.3.3a)) . 67
Figure 4 – Acceptable arrangements of protection means against electric shock . 69
Figure 5 – Examples of binding screw assemblies . 71
Figure 6 – Distance between conductors on an interface between two layers . 88
Figure 7 – Distance between adjacent conductors along an interface of an inner layer . 88
Figure 8 – Distance between adjacent conductors located between the same two
layers. 90
Figure 9 – Example of recurring peak voltage . 102
Figure 10 – Flowchart of safety related electrical tests – part 1 . 120
Figure 11 – Flowchart of safety related electrical tests – part 2 . 121
Figure 12 – Flowchart to explain the requirements for protection against the spread of fire . 151
Figure 13 – Flowchart for conformity options 13.1 a), b), c) and d) . 165
Figure A.1 – Measuring circuit for AC with frequencies up to 1 MHz and for DC . 169
Figure A.2 – Measuring circuits for sinusoidal AC with frequencies up to 100 Hz and for
DC . 170
Figure A.3 – Current measuring circuit for electrical burns . 171
Figure A.4 – Current measuring circuit for wet location . 172
Figure B.1 – Insulation between parts – example of a meter protected by reinforced
insulation . 174
Figure B.2 – Insulation between parts – example of a meter protected by double
insulation . 175
Figure C.1 – Single phase two wire meter with UC2 SCS and 25A LCS . 177
Figure C.2 – Three phase four wire meter with UC2 SCS and 2A ACS . 178
Figure D.1 – Circuit for three-phase four-wire meters to simulate long term
overvoltage, voltage moved to L3. 179
Figure D.2 – Voltages at the meter under test . 179
Figure E.1 – Test circuit for verification of short-time withstand current test on current
circuits with and without SCS (meter example is with SCS) . 180
Figure E.2 – Example of short-circuit carrying test record in the case of a single-pole
equipment on single-phase AC . 181
Figure F.1 – Example terminal arrangement of a directly connected meter with SCS . 182
Figure F.2 – Example terminal arrangement of a transformer operated meter with
auxiliary power supply . 186
Figure F.3 – Example terminal arrangement of a LPCT-operated meter with direct
voltage connections . 191
IEC 62052-31:2024 © IEC 2024 – 7 –
Figure H.1 – Test equipment for cable flexion and pull test (see 6.8.7.3) . 197
Figure J.1 – Non-rechargeable battery protection . 201
Figure J.2 – Rechargeable battery protection . 201
Figure L.1 – Unipolar, balanced and bipolar DC systems . 203
Table 1 – Test copper conductors for current and switch terminals . 43
Table 2 – Information requirements . 48
Table 3 – IEC 60417-DB-12M and ISO 7000:2019 symbols that may be used on
metering equipment . 52
Table 4 – Tightening torque for binding screw assemblies . 72
Table 5 – Multiplication factors for clearance for altitudes up to 5 000 m . 78
Table 6 – Overview of clauses specifying requirements for insulations . 81
Table 7 – Nominal / rated voltages and rated impulse voltages . 82
Table 8 – Clearances for mains circuits . 84
Table 9 – Creepage distances for mains circuits . 85
Table 10 – Test voltages for solid insulation in mains circuits . 86
Table 11 – Test voltages for testing long-term stress of solid insulation in mains circuits . 87
Table 12 – Minimum values for distance or thickness of solid insulation in mains circuits . 89
Table 13 – Clearances and test voltages for non-mains circuits derived from mains
circuits of overvoltage category III . 92
Table 14 – Creepage distances for non-mains circuits and functional insulation . 94
Table 15 – Minimum values for distance or thickness (see 6.7.4.4.2 to 6.7.4.4.4) . 96
Table 16 – Clearance values for the calculation of 6.7.5.2 .
...
Die SIST EN IEC 62052-31:2025 ist ein wesentliches Dokument, das die allgemeinen Sicherheitsanforderungen und zugehörigen Tests für elektrische Messgeräte spezifiziert. Dieser Standard ist besonders relevant für direkt angeschlossene sowie transformator- und umwandlungsbetriebene Wechselstrom- (AC) und Gleichstrom- (DC) Messgeräte. Der Umfang dieses Standards ist klar definiert und adressiert Geräte, die zur Messung und Steuerung elektrischer Energie in Netzwerken mit Spannungen bis zu 1.000 V AC oder 1.500 V DC konzipiert sind und verschiedene Funktionalitäten aufweisen. Ein hervorzuhebender Vorteil des Dokuments ist, dass es umfassend die Sicherheitsanforderungen behandelt, die für alle funktionalen Elemente innerhalb der Gehäuse der Messgeräte gelten, einschließlich der add-on Kommunikationsmodule. Dies ist besonders wichtig in einer Zeit, in der die Integration von Zusatzfunktionen in moderne Messgeräte zunehmend an Bedeutung gewinnt. Die klare Definition dieser Anforderungen trägt zur Sicherheit und Zuverlässigkeit der Produkte bei. Das Dokument umfasst auch spezifische Anforderungen an die Installation in entsprechenden Steckdosen oder Racks und sorgt dafür, dass die Tests unter realistischen Bedingungen durchgeführt werden. Diese Maßnahmen gewährleisten nicht nur die Sicherheit während der Nutzung des Geräts, sondern schützen auch vor potenziellen Gefahren bei der Installation und Wartung. Ein weiterer Pluspunkt ist die Berücksichtigung von Transducer-betriebenen Messgeräten oder solchen, die in Verbindung mit Low Power Instrument Transformers (LPIT) oder Sensoren verwendet werden. Damit wird sichergestellt, dass auch technologische Innovationen im Bereich der Messgeräte abgedeckt sind. Zusätzlich stellt der Standard klar, welche Arten von Geräten nicht in den Anwendungsbereich fallen, wie z.B. Portable Meter oder Systeme mit mehreren physisch getrennten Geräten. Diese Exklusionen sind wichtig, um den Fokus auf sicherheitstechnische Aspekte innerhalb des jeweiligen Rahmens zu legen und unnötige Komplikationen zu vermeiden. Die Sicherheitsanforderungen des Standards basieren auf der Annahme, dass das Messgerät korrekt installiert und von geschultem Personal während des Betriebs gewartet wird. Dies ist von zentraler Bedeutung, um potenzielle Risiken, die bei unsachgemäßer Handhabung auftreten können, zu minimieren. Insgesamt stellt die SIST EN IEC 62052-31:2025 sicher, dass die elektrische Messgeräte den höchsten Sicherheitsstandards entsprechen und somit eine wichtige Referenz für Hersteller und Betreiber in der Elektroindustrie darstellen. Der Standard bildet somit eine solide Basis für die Entwicklung sicherer und zuverlässiger Messgeräte, die den aktuellen und zukünftigen Anforderungen des Marktes gerecht werden.
The SIST EN IEC 62052-31:2025 standard serves as a pivotal framework in the domain of electricity metering equipment, with a robust emphasis on safety requirements and testing protocols for devices operating on AC and DC systems. The document meticulously outlines general safety standards applicable to both directly connected meters as well as those that are transformer-operated or utilize transducers. One of the standard's strengths lies in its comprehensive scope, which encompasses a diverse range of electricity metering configurations, including those designed to measure and control electrical energy in networks with voltages up to 1,000 V AC or 1,500 V DC. Additionally, it effectively addresses the safety aspects of various functional elements, including integrated and detached indicating displays and the accommodation of auxiliary circuits, thus ensuring a well-rounded approach to safety assessment. The inclusion of specific provisions for different installations, such as wall-mounted options and compatibility with specified sockets, enhances the standard's relevance to modern metering practices. It also sets clear boundaries on its applicability, expressly excluding high-voltage systems and portable meters, which helps users ascertain its suitability for their devices. Furthermore, the safety requirements are predicated on practical usage scenarios, stipulating that installed metering equipment must be accessible while ensuring that proper protection measures remain in place. This consideration of user experience, especially regarding the accessibility of hazardous live parts, underscores the standard's commitment to fostering a safer environment for both ordinary users and skilled professionals involved in installation and maintenance activities. Overall, the SIST EN IEC 62052-31:2025 standard represents a critical advancement in the field of electricity metering, providing clear guidance for ensuring product safety while accommodating the various functionalities and configurations present in contemporary electricity metering equipment. Its revision from the 2015 edition reflects ongoing improvements and responsiveness to technological advancements and market needs, solidifying its role as a foundational reference for manufacturers and stakeholders in the electricity metering sector.
SIST EN IEC 62052-31:2025 표준은 전기 계량 장비에 대한 포괄적인 안전 요구 사항과 관련된 테스트 및 조건을 제시하고 있습니다. 이 문서는 1,000V AC 또는 1,500V DC 전압에서 작동하는 전기 네트워크에서 전기 에너지를 측정하고 제어하기 위해 설계된 장비에 적용됩니다. 또한 직접 연결된 계량기뿐만 아니라 변압기 또는 변환기 운영 계량기에 대해서도 적용됩니다. 이 표준의 주요 강점 중 하나는 모든 기능 요소가 단일 계량기 케이스에 포함될 수 있도록 하고, 필요에 따라 추가 기능을 제공할 수 있는 장비를 포함한다는 점입니다. 이는 통신 모듈이나 참고 표시기 등을 포함할 수 있어, 사용자의 편의성을 높입니다. 또한, 통합 디스플레이 또는 분리된 표시기와 함께 작동할 수 있는 옵션을 제공하여 다양한 사용 환경을 지원합니다. 이 표준의 적용 범위는 전기 에너지 측정 장비와 관련된 모든 보조 입력 및 출력 회로, 작동 표시기 및 테스트 출력을 포함하므로 그래픽 및 기술적 안전 요구 사항을 구체적으로 정의하여 전기 계량 장비의 전반적인 안전성을 강화합니다. 특히 비상 상황에서도 원활한 작동이 가능하도록 설계됨으로써 사용자 안전을 보장합니다. 또한, SIST EN IEC 62052-31:2025는 특히 일반 소비자 및 계량 독이들이 사용하는 장비에 대한 요구 사항을 명시하고 있어, 장비의 올바른 설치와 사용을 전제로 하고 있습니다. 따라서 이 표준은 기술적인 진전에 따라 처음발행된 2015년 판에서 개선된 내용을 담고 있어 최신 기술 동향을 반영한 점에서도 매우 중요한 의미를 가집니다. 종합적으로 SIST EN IEC 62052-31:2025 표준은 전기 계량 장비의 안전성 및 신뢰성을 높이고, 다양한 설치 환경을 고려해 설계된 점에서 주목할 가치가 있으며, 그 적용 범위와 기술적 요구 사항은 현대 전기 산업에서 필수적인 기준으로 자리잡고 있습니다.
La norme SIST EN IEC 62052-31:2025 définit des exigences de sécurité générales et des tests associés pour les équipements de mesure d'électricité, qu'ils soient directement connectés, opérés par transformateur ou par transducteur. Le champ d'application de cette norme est pertinent pour les dispositifs qui mesurent et contrôlent l'énergie électrique dans des réseaux ayant une tension allant jusqu'à 1 000 V AC ou 1 500 V DC, ce qui couvre une large gamme d'applications industrielles et domestiques. Parmi les points forts de la norme, on note sa capacité à inclure divers éléments fonctionnels au sein d'un boîtier de compteur unique, tout en prévoyant également des options pour les affichages détachés. Cela témoigne d'une flexibilité utile pour différents types d'installations, qu'elles soient murales ou destinées à des emplacements spécifiques. Les exigences relatives aux circuits d'entrée et de sortie auxiliaires ainsi qu'aux indicateurs de fonctionnement et aux sorties de test enrichissent encore sa portée. Cette norme assure également que les équipements de mesure répondent à des normes de sécurité rigoureuses, basées sur la supposition que l'appareil a été installé de manière appropriée et qu’il est généralement utilisé par des personnes ordinaires. Cela renforce la confiance des utilisateurs dans les dispositifs de comptage de l'énergie électrique, en garantissant un niveau de protection contre les parties vivantes dangereuses. Cependant, la norme exclut certains équipements tels que ceux qui fonctionnent à des tensions supérieures et des systèmes de comptage compacts, ce qui peut être considéré comme une limitation. Néanmoins, son orientation sur des applications spécifiques en fait un outil essentiel pour la conformité en matière de sécurité dans des installations standards de mesure d'électricité. En résumé, la norme SIST EN IEC 62052-31:2025 représente une avancée significative dans l'assurance de la sécurité des équipements de mesure électrique, intégrant des exigences claires et pratiques qui répondent aux besoins variés des utilisateurs tout en établissant une base solide pour la conformité réglementaire.
SIST EN IEC 62052-31:2025 は、交流電力計器に関する一般要求事項、試験及び試験条件を定めた標準であり、その中でも特に製品の安全性に関する要求事項と試験を規定しています。この標準は、1000V AC または 1500V DC までの電圧での電気ネットワークにおける電力の測定及び制御を目的とした電力計器に適用されます。 この標準の主な強みは、直接接続型、変圧器駆動型、またはトランスデューサー駆動型の電力量計の安全性を高めることにあります。また、附加通信モジュールを含む全ての機能要素が、指示ディスプレイを除いて一つのメーターケースに内蔵されることを要求します。これは、最新の技術進歩に適応した設計を促進し、ユーザーにとっての安全性を確保するために重要です。 さらに、この文書は、低電力計器変圧器（LPIT）やセンサーと組み合わせて使用されるトランスデューサー駆動型メーターにも適用されるため、広範な適用範囲を持ちます。実際の設置環境に応じた試験条件が明確に規定されており、標準の範囲内で設計された機器はその特定のソケット内での性能と安全性を検証することが可能です。 安全要求は、メーターが正しく設置され、一般の人々が使用することを前提としたものであり、特にメーターの端子カバーやケースに関する安全対策が整備されています。これにより、メーターの使用時における不測の事故を防ぎ、適切な取り扱い方法が特に重視されています。 この標準は、2015年に発行された初版を技術的に改訂したものであり、現在の電力測定機器に対して必要な安全性基準を反映しています。この文書は、安全性を確保するための詳細なガイドラインを提供するだけでなく、業界全体の互換性と信頼性を高める重要な役割を担っています。
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