EN 61000-3-12:2011

Electromagnetic compatibility (EMC) - Part 3-12: Limits - Limits for harmonic currents produced by equipment connected to public low-voltage systems with input current > 16 A and <= 75 A per phase

IEC 61000-3-12:2011 deals with the limitation of harmonic currents injected into the public supply system. The limits given in this International Standard are applicable to electrical and electronic equipment with a rated input current exceeding 16 A and up to and including 75 A per phase, intended to be connected to public low-voltage a.c. distribution systems of the following types: - nominal voltage up to 240 V, single-phase, two or three wires; - nominal voltage up to 690 V, three-phase, three or four wires; - nominal frequency 50 Hz or 60 Hz. Other distribution systems are excluded. The limits given in this edition apply to equipment when connected to 230/400 V, 50 Hz systems. This standard applies to equipment intended to be connected to low-voltage systems interfacing with the public supply at the low-voltage level. It does not apply to equipment intended to be connected only to private low-voltage systems interfacing with the public supply only at the medium- or high-voltage level. This standard defines: a) requirements and emission limits for equipment; b) methods for type tests and simulations. Tests according to this International Standard are type tests of complete pieces of equipment. Conformity with this standard can also be determined by validated simulations. This second edition cancels and replaces the first edition published in 2004 and constitutes a technical revision. The significant technical changes with respect to the previous edition are: - the replacement of the reference fundamental current I1 by the reference current Iref for the calculation of emission limits;
- a new added table of current emission limits (Table 5); - a new added annex (Annex A) to define test conditions for some types of equipment; - Deletion of the former Annexes B (Approximate interpolation formulas) and D (Information on the PWHD factor).

Elektromagnetische Verträglichkeit (EMV) - Teil 3-12: Grenzwerte – Grenzwerte für Oberschwingungsströme, verursacht von Geräten und Einrichtungen mit einem Eingangsstrom > 16A und <= 75A je Leiter, die zum Anschluss an öffentliche Niederspannungsnetze vorgesehen sind

Compatibilité électromagnétique (CEM) - Partie 3-12: Limites - Limites pour les courants harmoniques produits par les appareils connectés aux réseaux publics basse tension ayant un courant appelé > 16 A et <= 75 A par phase

La CEI 61000-3-12:2011 traite de la limitation des courants harmoniques injectés dans le réseau public d'alimentation. Les limites définies dans la présente Norme internationale sont applicables aux appareils électriques et électroniques ayant un courant assigné d'entrée strictement supérieur à 16 A et inférieur ou égal à 75 A par phase, destinés à être connectés aux réseaux publics de distribution en courant alternatif basse tension des types suivants: - tension nominale jusqu'à 240 V, monophasé, deux ou trois conducteurs; - tension nominale jusqu'à 690 V, triphasé, trois ou quatre conducteurs; - fréquence nominale 50 Hz ou 60 Hz. Les autres réseaux de distribution sont exclus. Les limites définies dans la présente édition s'appliquent aux appareils connectés aux réseaux 230/400 V, 50 Hz. La présente norme s'applique aux appareils destinés à être raccordés à des réseaux basse tension connectés au réseau public d'alimentation au niveau basse tension. Elle ne s'applique pas aux appareils destinés à être raccordés uniquement à des réseaux basse tension privés connectés au réseau public d'alimentation seulement au niveau moyenne ou haute tension. Cette norme définit: - les exigences et limites d'émissions pour les appareils; - les méthodes d'essai de type et de simulation. Les essais réalisés conformément à la présente Norme internationale sont des essais de type sur des équipements complets. La conformité à la présente norme peut également être déterminée au moyen de simulations validées. Cette deuxième édition annule et remplace la première édition publiée en 2004 et constitue une révision technique. Les principaux changements techniques par rapport à l'édition précédente sont les suivants: - remplacement du courant fondamental de référence I1 par le courant de référence Iref pour le calcul des limites d'émission; - ajout d'un nouveau tableau de limites de courant d'émission (Tableau 5); - ajout d'une nouvelle annexe (Annexe A) définissant les conditions d'essai pour certains types de matériels; - suppression des anciennes Annexes B (Formules d'interpolation approximatives) and D (Informations sur le facteur PWHD).

Elektromagnetna združljivost (EMC) – 3-12. del: Mejne vrednosti – Mejne vrednosti za harmonske tokove, ki jih povzroča oprema, priključena na nizkonapetostne napajalne sisteme z naznačenim tokom, večjim od 16 A in enakim ali manjšim od 75 A na fazo (IEC 61000-3-12:2011)

Ta del standarda IEC 61000 obravnava omejitev harmonskih tokov, vnesenih v javno električno omrežje. Mejne vrednosti iz tega mednarodnega standarda veljajo za električno in elektronsko opremo z naznačenim vhodnim tokom nad 16 A in do vključno 75 A po liniji, ki naj bi se priključila na javne nizkonapetostne razdelilne sisteme izmenične napetosti naslednjih vrst:
• z nazivno napetostjo do 240 V, enofazni, z dvema ali tremi vodniki;
• z nazivno napetostjo do 690 V, trifazni, s tremi ali štirimi vodniki;
• z nazivno frekvenco 50 Hz ali 60 Hz.
Drugi razdelilni sistemi so izključeni. Mejne vrednosti iz te izdaje se uporabljajo za opremo,
priključeno na sisteme z napetostjo 230/400 V in frekvenco 50 Hz. Glejte tudi točko 5.
OPOMBA 1: Mejne vrednosti za druge sisteme bodo dodane v prihodnji izdaji tega standarda.
OPOMBA 2: Opremo z naznačenim vhodnim tokom, ki presega 75 A po liniji, je treba upoštevati v zahtevah za harmonske tokove za inštalacije. Glejte standard IEC/TR 61000-3-6 in prihodnji standard IEC/TR 61000-3-14.
Ta standard se uporablja za opremo, ki naj bi se priključila na nizkonapetostne sisteme, ki se povezujejo z javnim omrežjem pri nizki napetosti. Ne uporablja se za opremo,
ki naj bi se priključila le na zasebne nizkonapetostne sisteme, ki se povezujejo z javnim omrežjem le pri srednji ali visoki napetosti.
OPOMBA 3: Področje uporabe tega standarda je omejeno na opremo, priključeno na javne nizkonapetostne sisteme, ker je emisije iz opreme, nameščene v zasebnih nizkonapetostnih sistemih, mogoče združeno nadzorovati na točki skupnega spoja srednje napetosti s postopki, določenimi v standardu IEC/TR 61000-3-6, in/ali s pogodbenimi dogovori med upravljavcem razdelilnega omrežja in odjemalcem. Po pričakovanjih bodo upravljavci zasebnih sistemov upravljali okolje elektromagnetne združljivosti na način, ki zagotavlja skladnost z določbami standarda IEC/TR 61000-3-6 in/ali pogodbenih dogovorov.
OPOMBA 4: Če je oprema namenjena le priključitvi na zasebne sisteme, naj bi proizvajalec to dejstvo zelo jasno navedel v dokumentaciji izdelka.
OPOMBA 5: Profesionalna oprema z vhodnim tokom ≤ 16 A po liniji, ki ni skladna z zahtevami in mejnimi vrednostmi standarda IEC 61000-3-2, se morda sme priključiti na nekatere vrste nizkonapetostnih sistemov, kar velja tudi za opremo z vhodnim tokom > 16 A po liniji, ki ni skladna z zahtevami in mejnimi vrednostmi trenutno veljavnega standarda (glejte dodatek C).
OPOMBA 6: Mejne vrednosti v tem standardu se ne uporabljajo za samostojne harmonske filtre.
Ta standard določa:
a) zahteve in mejne vrednosti emisij za opremo;
b) metode za tipske preskuse in simulacije.
Preskusi v skladu s tem mednarodnim standardom so tipski preskusi popolnih delov opreme.
Skladnost s tem standardom je mogoče določiti tudi z validiranimi simulacijami.

General Information

• Status: Published
• Publication Date: 15-Dec-2011
• Withdrawal Date: 15-Jun-2014
• ICS: 33.100.10 - Emission
• Technical Committee: CLC/TC 210 - Electromagnetic Compatibility (EMC)
• Drafting Committee: IEC/SC 77A - IEC_SC_77A
• Parallel Committee: IEC/SC 77A - IEC_SC_77A
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 16-Dec-2011
• Completion Date: 16-Dec-2011
• Directive: 1999/5/EC - Directive 1999/5/EC of the European Parliament and of the Council of 9 March 1999 on radio equipment and telecommunications terminal equipment and the mutual recognition of their conformity
• Directive: 2004/108/EC - Directive 2004/108/EC of the European Parliament and of the Council of 15 December 2004 on the approximation of the laws of the Member States relating to electromagnetic compatibility and repealing Directive 89/336/EEC
• Directive: 2004/108/EU - DIRECTIVE 2004/108/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 15 December 2004 on the approximation of the laws of the Member States relating to electromagnetic compatibility and repealing Directive 89/336/EEC
• Directive: 2014/30/EU - Directive 2014/30/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to electromagnetic compatibility (recast)
• Directive: 2014/53/EU - Directive 2014/53/EU of The European Parliament and of the Council of 16 April 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of radio equipment and repealing Directive 1999/5/EC
• Mandate: M/490 - Standardisation mandate to the European Standardisation Organisations (ESOs) to support European Smart Grid deployment
• Mandate: M/536 - [C(2015)536] Standardisation request as regards radio equipment in support of Directive 2014/53/EU
• Mandate: M/552 - [C(2016) 7641 final] Standardisation request as regards harmonised standards in support of Directive 2014/30/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to electromagnetic compatibility
• Ref Project: SIST EN 61000-3-12:2012 - Electromagnetic compatibility (EMC) - Part 3-12: Limits - Limits for harmonic currents produced by equipment connected to public low-voltage systems with input current > 16 A and <= 75 A per phase

Relations

• Replaces: EN 61000-3-12:2005 - Electromagnetic compatibility (EMC) - Part 3-12: Limits - Limits for harmonic currents produced by equipment connected to public low-voltage systems with input current > 16 A and <= 75 A per phase
• Effective Date: 29-Jan-2023
• Amended By: EN 61000-3-12:2011/A1:2024 - Electromagnetic compatibility (EMC) - Part 3-12: Limits - Limits for harmonic currents produced by equipment connected to public low-voltage systems with input current >16 A and ≤ 75 A per phase
• Effective Date: 20-Nov-2018

Standards Content (Sample)

SLOVENSKI STANDARD
01-februar-2012
1DGRPHãþD
SIST EN 61000-3-12:2005
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]DKDUPRQVNHWRNRYHNLMLKSRY]URþDRSUHPDSULNOMXþHQDQDQL]NRQDSHWRVWQH
QDSDMDOQHVLVWHPH]QD]QDþHQLPWRNRPYHþMLPRG$LQ $SROLQLML,(&

Electromagnetic compatibility (EMC) - Part 3-12: Limits - Limits for harmonic currents
produced by equipment connected to public low-voltage systems with input current > 16
A and <= 75 A per phase
(OHNWURPDJQHWLVFKH9HUWUlJOLFKNHLW(097HLO*UHQ]ZHUWHIU
2EHUVFKZLQJXQJVVWU|PHYHUXUVDFKWYRQ*HUlWHQXQG(LQULFKWXQJHQPLWHLQHP
(LQJDQJVVWURP!$XQG”$MH/HLWHUGLH]XP$QVFKOXVVDQ|IIHQWOLFKH
1LHGHUVSDQQXQJVQHW]HYRUJHVHKHQVLQG
Compatibilité électromagnétique (CEM) - Partie 3-12: Limites - Limites pour les courants
harmoniques produits par les appareils connectés aux réseaux publics basse tension
ayant un courant appelé > 16 A et <= 75 A par phase
Ta slovenski standard je istoveten z: EN 61000-3-12:2011
ICS:
33.100.01 Elektromagnetna združljivost Electromagnetic compatibility
na splošno in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 61000-3-12
NORME EUROPÉENNE
December 2011
EUROPÄISCHE NORM
ICS 33.100.10 Supersedes EN 61000-3-12:2005

English version
Electromagnetic compatibility (EMC) -
Part 3-12: Limits -
Limits for harmonic currents produced by equipment connected to public
low-voltage systems with input current > 16 A and ≤ 75 A per phase
(IEC 61000-3-12:2011)
Compatibilité électromagnétique (CEM) - Elektromagnetische Verträglichkeit (EMV)
Partie 3-12: Limites - -
Limites pour les courants harmoniques Teil 3-12: Grenzwerte für
produits par les appareils connectés aux Oberschwingungsströme, verursacht von
réseaux publics basse tension ayant un Geräten und Einrichtungen mit einem
courant appelé > 16 A et ≤ 75 A par phase Eingangsstrom > 16A und ≤ 75A je Leiter,
(CEI 61000-3-12:2011) die zum Anschluss an öffentliche
Niederspannungsnetze vorgesehen sind.
(IEC 61000-3-12:2011)
This European Standard was approved by CENELEC on 2011-06-16. 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, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2011 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61000-3-12:2011 E
Foreword
The text of document 77A/740/FDIS, future edition 2 of IEC 61000-3-12, prepared by SC 77A, "Low
frequency phenomena", of IEC TC 77, "Electromagnetic compatibility" was submitted to the
IEC-CENELEC parallel vote and approved by CENELEC as EN 61000-3-12:2011.
The following dates are fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2012-06-16
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2014-06-16
This European Standard supersedes EN 61000-3-12:2005.
The significant technical changes with respect to EN 61000-3-12:2005 are listed below:
– the reference fundamental current I is replaced by the reference current I for the calculation of
1 ref
emission limits;
– a new table of current emission limits (Table 5) is added;
– a new annex (Annex A) is added to define test conditions for some types of equipment;
– former Annexes B (Approximate interpolation formulas) and D (Information on the PWHD factor) are
deleted.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent
rights.
This European Standard has been prepared under a mandate given to CENELEC by the European
Commission and the European Free Trade Association and covers essential requirements of
EC Directives EMC (2004/108/EC) and RTTED (1999/5/EC).
For the relationship with EU Directive(s) see informative Annex ZZ, which is an integral part of this
document.
__________
Endorsement notice
The text of the International Standard IEC 61000-3-12:2011 was approved by CENELEC as a European
Standard without any modification.
__________
- 3 - EN 61000-3-12:2011
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following referenced documents are indispensable for the application 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  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year

IEC 60038 - IEC standard voltages EN 60038 -

IEC 60050-161 1990 International Electrotechnical Vocabulary - -
+ A1 1997 (IEV) -
+ A2 1998 Chapter 161: Electromagnetic compatibility

IEC 61000-2-2 - Electromagnetic compatibility (EMC) - EN 61000-2-2 -
Part 2-2: Environment - Compatibility levels
for low-frequency conducted disturbances and
signalling in public low-voltage power supply
systems
IEC 61000-2-4 - Electromagnetic compatibility (EMC) - EN 61000-2-4 -
Part 2-4: Environment - Compatibility levels in
industrial plants for low-frequency conducted
disturbances
IEC 61000-3-2 - Electromagnetic compatibility (EMC) - EN 61000-3-2 -
Part 3-2: Limits - Limits for harmonic current
emissions (equipment input current ≤ 16 A per
phase)
IEC 61000-4-7 - Electromagnetic compatibility (EMC) - EN 61000-4-7 -
Part 4-7: Testing and measurement
techniques - General guide on harmonics and
interharmonics measurements and
instrumentation, for power supply systems
and equipment connected thereto

Annex ZZ
(informative)
Coverage of Essential Requirements of EU Directives

This European Standard has been prepared under a mandate given to CENELEC by the European
Commission and the European Free Trade Association and within its scope the standard covers
protection requirements of Annex I, Article 1(a) of the EU Directive 2004/108/EC, and essential
requirements of Article 3.1(b) (emission only) of the EU Directive 1999/5/EC.

Compliance with this standard provides presumption of conformity with the specified essential
requirements of the Directives concerned.

NOTE Other requirements and other EU Directives may be applicable to the products falling within the scope of this
standard.
IEC 61000-3-12 ®
Edition 2.0 2011-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electromagnetic compatibility (EMC) –
Part 3-12: Limits – Limits for harmonic currents produced by equipment
connected to public low-voltage systems with input current >16 A and ≤75 A per
phase
Compatibilité électromagnétique (CEM) –
Partie 3-12: Limites – Limites pour les courants harmoniques produits par les
appareils connectés aux réseaux publics basse tension ayant un courant
appelé >16 A et ≤75 A par phase

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX U
ICS 33.100.10 ISBN 978-2-88912-486-2
– 2 – 61000-3-12  IEC:2011
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references. 7
3 Terms and definitions . 7
4 Measurement conditions . 11
4.1 Determination of the reference current . 11
4.2 Harmonic current measurement . 11
4.2.1 General . 11
4.2.2 Measurement procedure . 11
4.2.3 Repeatability . 11
4.2.4 Starting and stopping . 12
4.2.5 Application of limits . 12
4.2.6 Test report . 12
4.2.7 Test observation period. 12
4.3 Equipment consisting of several self-contained items . 12
5 Requirements and limits for equipment . 13
5.1 Control methods . 13
5.2 Limits for emission . 13
6 Product documentation . 17
7 Test and simulation conditions . 17
7.1 General . 17
7.2 Requirements for direct measurement . 17
7.3 Requirements for simulation . 18
7.4 General conditions for test and simulation . 19
Annex A (normative) Type test conditions . 21
Annex B (informative) Illustration of limits for harmonic currents . 23
Annex C (informative) Equipment not complying with the requirements and limits of this
standard . 24
Bibliography . 25

th
Figure 1 – Definition of the 5 harmonic current phase angle (I leads U , α > 0) . 10
5 p1 5
th
Figure 2 – Definition of the 5 harmonic current phase angle (I lags U , α < 0) . 10
5 p1 5
Figure 3 – Flowchart of the application procedure . 16
th
Figure B.1 – Limits of the 5 harmonic current as functions of R . 23
sce
Table 1 – Values of the observation period . 12
Table 2 – Current emission limits for equipment other than balanced three-phase
equipment . 15
Table 3 – Current emission limits for balanced three-phase equipment . 15
Table 4 – Current emission limits for balanced three-phase equipment under specified
conditions (a, b, c) . 15
Table 5 – Current emission limits for balanced three-phase equipment under specified
conditions (d, e, f) . 16

61000-3-12  IEC:2011 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTROMAGNETIC COMPATIBILITY (EMC) –

Part 3-12: Limits –
Limits for harmonic currents produced
by equipment connected to public low-voltage systems
with input current >16 A and ≤75 A per phase

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national
...

SLOVENSKI STANDARD
01-februar-2012
Nadomešča:
SIST EN 61000-3-12:2005
Elektromagnetna združljivost (EMC) – 3-12. del: Mejne vrednosti – Mejne vrednosti
za harmonske tokove, ki jih povzroča oprema, priključena na nizkonapetostne
napajalne sisteme z naznačenim tokom, večjim od 16 A in enakim ali manjšim od
75 A na fazo (IEC 61000-3-12:2011)
Electromagnetic compatibility (EMC) - Part 3-12: Limits - Limits for harmonic currents
produced by equipment connected to public low-voltage systems with input current > 16
A and <= 75 A per phase
Elektromagnetische Verträglichkeit (EMV) - Teil 3-12: Grenzwerte für
Oberschwingungsströme, verursacht von Geräten und Einrichtungen mit einem
Eingangsstrom > 16A und ≤ 75A je Leiter, die zum Anschluss an öffentliche
Niederspannungsnetze vorgesehen sind
Compatibilité électromagnétique (CEM) - Partie 3-12: Limites - Limites pour les courants
harmoniques produits par les appareils connectés aux réseaux publics basse tension
ayant un courant appelé > 16 A et <= 75 A par phase
Ta slovenski standard je istoveten z: EN 61000-3-12:2011
ICS:
33.100.01 Elektromagnetna združljivost Electromagnetic compatibility
na splošno in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 61000-3-12
NORME EUROPÉENNE
December 2011
EUROPÄISCHE NORM
ICS 33.100.10 Supersedes EN 61000-3-12:2005

English version
Electromagnetic compatibility (EMC) -
Part 3-12: Limits -
Limits for harmonic currents produced by equipment connected to public
low-voltage systems with input current > 16 A and ≤ 75 A per phase
(IEC 61000-3-12:2011)
Compatibilité électromagnétique (CEM) - Elektromagnetische Verträglichkeit (EMV)
Partie 3-12: Limites - -
Limites pour les courants harmoniques Teil 3-12: Grenzwerte für
produits par les appareils connectés aux Oberschwingungsströme, verursacht von
réseaux publics basse tension ayant un Geräten und Einrichtungen mit einem
courant appelé > 16 A et ≤ 75 A par phase Eingangsstrom > 16A und ≤ 75A je Leiter,
(CEI 61000-3-12:2011) die zum Anschluss an öffentliche
Niederspannungsnetze vorgesehen sind.
(IEC 61000-3-12:2011)
This European Standard was approved by CENELEC on 2011-06-16. 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, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2011 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61000-3-12:2011 E
Foreword
The text of document 77A/740/FDIS, future edition 2 of IEC 61000-3-12, prepared by SC 77A, "Low
frequency phenomena", of IEC TC 77, "Electromagnetic compatibility" was submitted to the
IEC-CENELEC parallel vote and approved by CENELEC as EN 61000-3-12:2011.
The following dates are fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2012-06-16
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2014-06-16
This European Standard supersedes EN 61000-3-12:2005.
The significant technical changes with respect to EN 61000-3-12:2005 are listed below:
– the reference fundamental current I is replaced by the reference current I for the calculation of
1 ref
emission limits;
– a new table of current emission limits (Table 5) is added;
– a new annex (Annex A) is added to define test conditions for some types of equipment;
– former Annexes B (Approximate interpolation formulas) and D (Information on the PWHD factor) are
deleted.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent
rights.
This European Standard has been prepared under a mandate given to CENELEC by the European
Commission and the European Free Trade Association and covers essential requirements of
EC Directives EMC (2004/108/EC) and RTTED (1999/5/EC).
For the relationship with EU Directive(s) see informative Annex ZZ, which is an integral part of this
document.
__________
Endorsement notice
The text of the International Standard IEC 61000-3-12:2011 was approved by CENELEC as a European
Standard without any modification.
__________
- 3 - EN 61000-3-12:2011
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following referenced documents are indispensable for the application 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  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year

IEC 60038 - IEC standard voltages EN 60038 -

IEC 60050-161 1990 International Electrotechnical Vocabulary - -
+ A1 1997 (IEV) -
+ A2 1998 Chapter 161: Electromagnetic compatibility

IEC 61000-2-2 - Electromagnetic compatibility (EMC) - EN 61000-2-2 -
Part 2-2: Environment - Compatibility levels
for low-frequency conducted disturbances and
signalling in public low-voltage power supply
systems
IEC 61000-2-4 - Electromagnetic compatibility (EMC) - EN 61000-2-4 -
Part 2-4: Environment - Compatibility levels in
industrial plants for low-frequency conducted
disturbances
IEC 61000-3-2 - Electromagnetic compatibility (EMC) - EN 61000-3-2 -
Part 3-2: Limits - Limits for harmonic current
emissions (equipment input current ≤ 16 A per
phase)
IEC 61000-4-7 - Electromagnetic compatibility (EMC) - EN 61000-4-7 -
Part 4-7: Testing and measurement
techniques - General guide on harmonics and
interharmonics measurements and
instrumentation, for power supply systems
and equipment connected thereto

Annex ZZ
(informative)
Coverage of Essential Requirements of EU Directives

This European Standard has been prepared under a mandate given to CENELEC by the European
Commission and the European Free Trade Association and within its scope the standard covers
protection requirements of Annex I, Article 1(a) of the EU Directive 2004/108/EC, and essential
requirements of Article 3.1(b) (emission only) of the EU Directive 1999/5/EC.

Compliance with this standard provides presumption of conformity with the specified essential
requirements of the Directives concerned.

NOTE Other requirements and other EU Directives may be applicable to the products falling within the scope of this
standard.
IEC 61000-3-12 ®
Edition 2.0 2011-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electromagnetic compatibility (EMC) –
Part 3-12: Limits – Limits for harmonic currents produced by equipment
connected to public low-voltage systems with input current >16 A and ≤75 A per
phase
Compatibilité électromagnétique (CEM) –
Partie 3-12: Limites – Limites pour les courants harmoniques produits par les
appareils connectés aux réseaux publics basse tension ayant un courant
appelé >16 A et ≤75 A par phase

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX U
ICS 33.100.10 ISBN 978-2-88912-486-2
– 2 – 61000-3-12  IEC:2011
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references. 7
3 Terms and definitions . 7
4 Measurement conditions . 11
4.1 Determination of the reference current . 11
4.2 Harmonic current measurement . 11
4.2.1 General . 11
4.2.2 Measurement procedure . 11
4.2.3 Repeatability . 11
4.2.4 Starting and stopping . 12
4.2.5 Application of limits . 12
4.2.6 Test report . 12
4.2.7 Test observation period. 12
4.3 Equipment consisting of several self-contained items . 12
5 Requirements and limits for equipment . 13
5.1 Control methods . 13
5.2 Limits for emission . 13
6 Product documentation . 17
7 Test and simulation conditions . 17
7.1 General . 17
7.2 Requirements for direct measurement . 17
7.3 Requirements for simulation . 18
7.4 General conditions for test and simulation . 19
Annex A (normative) Type test conditions . 21
Annex B (informative) Illustration of limits for harmonic currents . 23
Annex C (informative) Equipment not complying with the requirements and limits of this
standard . 24
Bibliography . 25

th
Figure 1 – Definition of the 5 harmonic current phase angle (I leads U , α > 0) . 10
5 p1 5
th
Figure 2 – Definition of the 5 harmonic current phase angle (I lags U , α < 0) . 10
5 p1 5
Figure 3 – Flowchart of the application procedure . 16
th
Figure B.1 – Limits of the 5 harmonic current as functions of R . 23
sce
Table 1 – Values of the observation period . 12
Table 2 – Current emission limits for equipment other than balanced three-phase
equipment . 15
Table 3 – Current emission limits for balanced three-phase equipment . 15
Table 4 – Current emission limits for balanced three-phase equipment under specified
conditions (a, b, c) . 15
Table 5 – Current emission limits for balanced three-phase equipment under specified
conditions (d, e, f) . 16

61000-3-12  IEC:2011 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTROMAGNETIC COMPATIBILITY (EMC) –

Part 3-12: Limits –
Limits for harmonic currents produced
by equipment connected to public low-voltage systems
with input current >16 A and ≤75 A per phase

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all n
...

ba
SLOVENSKI SIST EN 61000-3-12
STANDARD  februar 2012
Elektromagnetna združljivost (EMC) – 3-12. del: Mejne vrednosti – Mejne
vrednosti za harmonske tokove, ki jih povzroča oprema, priključena na
nizkonapetostne napajalne sisteme z naznačenim tokom, večjim od 16 A in
enakim ali manjšim od 75 A na fazo (IEC 61000-3-12:2011)

Electromagnetic compatibility (EMC) – Part 3-12: Limits – Limits for harmonic
currents produced by equipment connected to public low-voltage systems with
input current > 16 A and ≤ 75 A per phase

Compatibilité électromagnétique (CEM) – Partie 3-12: Limites – Limites pour les
courants harmoniques produits par les appareils connectés aux réseaux publics
basse tension ayant un courant appelé > 16 A et ≤ 75 A par phase

Elektromagnetische Verträglichkeit (EMV) – Teil 3-12: Grenzwerte für
Oberschwingungsströme, verursacht von Geräten und Einrichtungen mit einem
Eingangsstrom > 16A und ≤ 75A je Leiter, die zum Anschluss an öffentliche
Niederspannungsnetze vorgesehen sind

Referenčna oznaka
ICS 33.100.01 SIST EN 61000-3-12:2012 (sl)

Nadaljevanje na straneh II do III in od 1 do 27

© 2019-11. Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

SIST EN 61000-3-12 : 2012
NACIONALNI UVOD
Standard SIST EN 61000-3-12 (sl), Elektromagnetna združljivost (EMC) – 3-12. del: Mejne vrednosti –
Mejne vrednosti za harmonske tokove, ki jih povzroča oprema, priključena na nizkonapetostne
napajalne sisteme z naznačenim tokom, večjim od 16 A in enakim ali manjšim od 75 A na fazo (IEC
61000-3-12:2011), 2012, ima status slovenskega standarda in je istoveten evropskemu standardu EN
61000-3-12 (en), Electromagnetic compatibility (EMC) – Part 3-12: Limits – Limits for harmonic currents
produced by equipment connected to public low-voltage systems with input current > 16 A and ≤ 75 A
per phase, 2011.
NACIONALNI PREDGOVOR
Evropski standard EN 61000-3-12:2011 je pripravil tehnični odbor Evropskega komiteja za
standardizacijo v elektrotehniki CENELEC CLC/TC 210 Elektromagnetna združljivost (EMC). Slovenski
standard SIST EN 61000-3-12:2012 je prevod evropskega standarda EN 61000-3-12:2011. V primeru
spora glede besedila slovenskega prevoda v tem standardu je odločilen izvirni evropski standard v
angleškem jeziku. Slovensko izdajo standarda je pripravil tehnični odbor SIST/TC EMC
Elektromagnetna združljivost.
Odločitev za privzem tega standarda je v februarju 2012 sprejel tehnični odbor SIST/TC EMC
Elektromagnetna združljivost.
ZVEZA Z NACIONALNIMI STANDARDI

S privzemom tega evropskega standarda veljajo za omejeni namen referenčnih standardov vsi
standardi, navedeni v izvirniku, razen tistih, ki so že sprejeti v nacionalno standardizacijo:
SIST EN 60038 Standardne napetosti IEC
SIST IEC 60050-161:1999 Mednarodni elektrotehniški slovar (IEV) – 161. poglavje: Elektromagnetna
združljivost
SIST EN 61000-2-2 Elektromagnetna združljivost (EMC) – Okolje – Nivoji združljivosti za
nizkofrekvenčne prevodne motnje in signaliziranje v javnih
nizkonapetostnih napajalnih sistemih
SIST EN 61000-2-4 Elektromagnetna združljivost (EMC) – 2-4. del: Okolje – Združljivi nivoji za
nizkofrekvenčne motnje v vodnikih v industrijskih objektih
SIST EN 61000-3-2 Elektromagnetna združljivost (EMC) – 3-2. del: Mejne vrednosti – Mejne
vrednosti za oddajanje harmonskih tokov (vhodni tok opreme do vključno
16 A na fazo)
SIST EN 61000-4-7 Elektromagnetna združljivost (EMC) – 4-7. del: Preskusne in merilne
tehnike – Splošno vodilo za meritve in merilno opremo za merjenje
harmonikov in medharmonikov v napajalnih omrežjih in nanje priključeno
opremo
OSNOVA ZA IZDAJO STANDARDA
– EN 61000-3-12:2011
PREDHODNA IZDAJA
– SIST EN 61000-3-12:2005
II
SIST EN 13108-7 : 2017
OPOMBE
– Povsod, kjer se v besedilu standarda uporablja izraz "evropski standard", v SIST EN 61000-3-
12:2012 to pomeni "slovenski standard".

– Nacionalni uvod in nacionalni predgovor nista sestavni del standarda.

– Ta nacionalni dokument je istoveten EN 61000-3-12:2011 in je objavljen z dovoljenjem

CEN-CENELEC
Upravni center
Avenue Marnix 17
B-1000 Bruselj
This national document is identical with EN 61000-3-12:2011 and is published with the permission
of
CEN-CENELEC
Management Centre
Avenue Marnix 17
B -1000 Brussels
III
SIST EN 61000-3-12 : 2012
(prazna stran)
IV
EVROPSKI STANDARD           EN 61000-3-12
EUROPEAN STANDARD
NORME EUROPÉENNE
december 2011
EUROPÄISCHE NORM
ICS 33.100.01 Nadomešča EN 61000-3-12:2005

Slovenska izdaja
Elektromagnetna združljivost (EMC) – 3-12. del: Mejne vrednosti – Mejne
vrednosti za harmonske tokove, ki jih povzroča oprema, priključena na
nizkonapetostne napajalne sisteme z naznačenim tokom, večjim od 16 A
in enakim ali manjšim od 75 A na fazo (IEC 61000-3-12:2011)

Electromagnetic compatibility Compatibilité électromagnétique Elektromagnetische
(EMC) – Part 3-12: Limits – (CEM) – Partie 3-12: Limites – Verträglichkeit (EMV) –
Limits for harmonic currents Limites pour les courants Teil 3-12: Grenzwerte für
produced by equipment harmoniques produits par les Oberschwingungsströme,
connected to public low-voltage appareils connectés aux verursacht von Geräten und
systems with input current réseaux publics basse tension Einrichtungen mit einem
> 16 A and ≤ 75 A per phase ayant un courant appelé Eingangsstrom > 16A und ≤ 75A
> 16 A et ≤ 75 A par phase je Leiter, die zum Anschluss an
öffentliche Niederspannungs-
netze vorgesehen sind
Ta evropski standard je CENELEC sprejel 16. junija 2011. Člani CENELEC morajo izpolnjevati notranje
predpise CEN/CENELEC, s katerimi so predpisani pogoji za privzem tega evropskega standarda na
nacionalno raven brez kakršnihkoli sprememb.

Najnovejši seznami teh nacionalnih standardov z njihovimi bibliografskimi podatki se na zahtevo lahko
dobijo pri Upravnem centru CEN-CENELEC ali kateremkoli članu CENELEC.

Ta evropski standard obstaja v treh uradnih izdajah (angleški, francoski in nemški). Izdaje v drugih
jezikih, ki jih člani CENELEC na lastno odgovornost prevedejo in izdajo ter prijavijo pri Centralnem
sekretariatu, veljajo kot uradne izdaje.

Člani CENELEC so nacionalni elektrotehniški komiteji Avstrije, Belgije, Bolgarije, Hrvaške, Cipra,
Češke, Danske, Estonije, Finske, Francije, Nemčije, Grčije, Madžarske, Islandije, Irske, Italije, Latvije,
Litve, Luksemburga, Malte, Nizozemske, Norveške, Poljske, Portugalske, Romunije, Slovaške,
Slovenije, Španije, Švedske, Švice in Združenega kraljestva.

CENELEC
Evropski komite za standardizacijo v elektrotehniki
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Upravni center CEN-CENELEC: Avenue Marnix 17, B-1000 Bruselj

© 2011 CENELEC Lastnice avtorskih pravic so vse države članice CENELEC.         Ref. oznaka EN 61000-3-12:2011 E

SIST EN 61000-3-12 : 2012
VSEBINA Stran
Predgovor k mednarodnemu standardu . 6
Uvod . 8
1 Področje uporabe . 9
2 Zveze s standardi . 10
3 Izrazi in definicije . 10
4 Merilni pogoji . 13
4.1 Določitev referenčnega toka . 13
4.2 Meritve harmonskega toka . 14
4.2.1 Splošno . 14
4.2.2 Merilni postopek . 14
4.2.3 Ponovljivost . 14
4.2.4 Začetek in zaustavitev . 14
4.2.5 Uporaba mejnih vrednosti . 14
4.2.6 Poročilo o preskusu . 15
4.2.7 Opazovalno obdobje preskusa . 15
4.3 Oprema, ki je sestavljena iz več samostojnih enot . 15
5 Zahteve in mejne vrednosti za opremo . 15
5.1 Postopki krmiljenja . 15
5.2 Mejne vrednosti oddajanja . 16
6 Dokumentacija o proizvodu . 20
7 Pogoji za preskušanje in simulacijo . 20
7.1 Splošno . 20
7.2 Zahteve za neposredno merjenje . 20
7.3 Zahteve za simulacijo . 21
7.4 Splošne zahteve za preskus in simulacijo . 22
Dodatek A (normativni): Pogoji za preskus tipa . 23
Dodatek B (informativni): Ponazoritev mejnih vrednosti za harmonske toke . 25
Dodatek C (informativni): Oprema, ki ne izpolnjuje zahtev in mejnih vrednosti tega standarda . 26
Literatura  . 27

Slika 1: Določitev faznega kota petega harmonskega toka (I prehiteva U , α > 0) . 13
5 p1 5
Slika 2: Določitev faznega kota petega harmonskega toka (I zaostaja za U , α < 0) . 13
5 p1 5
Slika 3: Diagram poteka postopka uporabe . 19
Slika B.1: Mejne vrednosti petega harmonskega toka kot funkcija R . 25
sce
Preglednica 1: Vrednosti opazovalnega obdobja . 15
Preglednica 2: Oddajne mejne vrednosti toka za opremo, ki ni uravnotežena trifazna oprema  . 18
Preglednica 3: Oddajne mejne vrednosti toka za uravnoteženo trifazno opremo . 18
Preglednica 4: Oddajne mejne vrednosti toka za uravnoteženo trifazno opremo
pod določenimi pogoji (a, b, c) . 18
Preglednica 5: Oddajne mejne vrednosti toka za uravnoteženo trifazno opremo
pod določenimi pogoji (d, e, f) . 19
SIST EN 61000-3-12 : 2012
Predgovor k evropskemu standardu

Besedilo dokumenta 77A/740/FDIS, prihodnje druge izdaje IEC 61000-3-12, ki ga je pripravil pododbor
SC 77A "Nizkofrekvenčni pojavi" pri tehničnem odboru IEC/TC 77 "Elektromagnetna združljivost", je
CENELEC po vzporednem glasovanju v IEC in CENELEC sprejel kot EN 61000-3-12:2011.

Določena sta bila naslednja datuma:
– zadnji datum, do katerega mora EN dobiti status
nacionalnega standarda bodisi z objavo istovetnega besedila
ali z razglasitvijo (dop) 2012-06-16
– zadnji datum, ko je treba razveljaviti nacionalne standarde,
ki so z EN v nasprotju (dow) 2014-06-16
Ta evropski standard nadomešča EN 61000-3-12:2005.

Pomembne tehnične spremembe glede na EN 61000-3-12:2005 so navedene spodaj:

– referenčni temeljni tok I je zamenjan z referenčnim tokom I za izračun oddajnih mejnih vrednosti;
1 ref
– dodana je nova preglednica oddajnih mejnih vrednosti toka (preglednica 5);

– dodan je nov dodatek (dodatek A), ki določa preskusne pogoje za nekatere vrste opreme;

– prejšnja dodatka B (Približne interpolacijske formule) in D (Informacije o faktorju PWHD) sta
izbrisana.
Opozoriti je treba na možnost, da bi lahko bil kateri od elementov tega dokumenta predmet patentnih
pravic. CEN in CENELEC nista odgovorna za identificiranje nobene od teh patentnih pravic.
Ta evropski standard je bil pripravljen v okviru mandata, ki sta ga Evropska komisija in Evropsko
združenje za prosto trgovino dala CENELEC, in podpira bistvene zahteve direktiv EMC (2004/108/ES)
in RTTED (1999/5/ES).
Za zveze z direktivo(-ami) EU glej dodatek ZZ, ki je sestavni del tega dokumenta.

Razglasitvena objava
Besedilo mednarodnega standarda IEC 61000-3-12:2011 je CENELEC odobril kot evropski standard
brez kakršnihk
...