EN IEC 61000-3-11:2019

SLOVENSKI STANDARD
01-december-2019
Nadomešča:
SIST EN 61000-3-11:2001
Elektromagnetna združljivost (EMC) - 3-11. del: Mejne vrednosti - Omejitev
vrednosti kolebanja napetosti in flikerja v nizkonapetostnih napajalnih sistemih -
Oprema z naznačenim tokom <= 75 A, priključena pod posebnimi pogoji
Electromagnetic compatibility (EMC) - Part 3-11: Limits - Limitation of voltage changes,
voltage fluctuations and flicker in public low-voltage supply systems - Equipment with
rated current <= 75 A and subject to conditional connection
Elektromagnetische Verträglichkeit (EMV) - Teil 3-11: Grenzwerte - Begrenzung von
Spannungsänderungen, Spannungsschwankungen und Flicker in öffentlichen
Niederspannungs-Versorgungsnetzen - Geräte und Einrichtungen mit einem
Bemessungsstrom <= 75 A, die einer Sonderanschlußbedingung unterliegen
Compatibilité électromagnétique (CEM) - Partie 3-11: Limites - Limitation des variations
de tension, des fluctuations de tension et du papillotement dans les réseaux publics
d'alimentation basse tension - Equipements ayant un courant assigné <= 75 A et soumis
à un raccordement conditionnel
Ta slovenski standard je istoveten z: EN IEC 61000-3-11:2019
ICS:
33.100.10 Emisija Emission
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 61000-3-11

NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2019
ICS 33.100.10 Supersedes EN 61300-3-11:2000 and all of its
amendments and corrigenda (if any)
English Version
Electromagnetic compatibility (EMC) - Part 3-11: Limits -
Limitation of voltage changes, voltage fluctuations and flicker in
public low-voltage supply systems - Equipment with rated current
≤ 75 A and subject to conditional connection
(IEC 61000-3-11:2017)
Compatibilité électromagnétique (CEM) - Partie 3-11: Elektromagnetische Verträglichkeit (EMV) - Teil 3-11:
Limites - Limitation des variations de tension, des Grenzwerte – Begrenzung von Spannungsänderungen,
fluctuations de tension et du papillotement dans les réseaux Spannungsschwankungen und Flicker in öffentlichen
publics d'alimentation basse tension - Équipements ayant Niederspannungs-Versorgungsnetzen für Geräte mit einem
Bemessungsstrom ≤ 75 A je Leiter, die einer
un courant assigné ≤75 A et soumis à un raccordement
conditionnel Sonderanschlussbedingung unterliegen
(IEC 61000-3-11:2017) (IEC 61000-3-11:2017)
This European Standard was approved by CENELEC on 2017-05-26. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 61000-3-11:2019 E

European foreword
The text of document 77A/929/CDV, future edition 2 of IEC 61000-3-11, prepared by SC 77A "EMC -
Low frequency phenomena" of IEC/TC 77 "Electromagnetic compatibility" was submitted to the IEC-
CENELEC parallel vote and approved by CENELEC as EN IEC 61000-3-11:2019.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2020-05-01
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2022-11-01
document have to be withdrawn
This document supersedes EN 61300-3-11:2000 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.
Endorsement notice
The text of the International Standard IEC 61000-3-11:2017 was approved by CENELEC as a
European Standard without any modification.

Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1  Where an International Publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
NOTE 2  Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60050-161 -  International Electrotechnical Vocabulary. - -
Chapter 161: Electromagnetic compatibility
IEC 61000-3-3 2013 Electromagnetic compatibility (EMC) - Part EN 61000-3-3 2013
3-3: Limits - Limitation of voltage changes,
voltage fluctuations and flicker in public
low-voltage supply systems, for equipment
with rated current ≤16 A per phase and
not subject to conditional connection
IEC/TR 60725 -  Consideration of reference impedances - -
and public supply network impedances for
use in determining disturbance
characteristics of electrical equipment
having a rated current =< 75 A per phase

IEC 61000-3-11 ®
Edition 2.0 2017-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electromagnetic compatibility (EMC) –

Part 3-11: Limits – Limitation of voltage changes, voltage fluctuations and flicker

in public low-voltage supply systems – Equipment with rated current ≤75 A and

subject to conditional connection

Compatibilité électromagnétique (CEM) –

Partie 3-11: Limites – Limitation des variations de tension, des fluctuations de

tension et du papillotement dans les réseaux publics d’alimentation basse

tension – Équipements ayant un courant assigné ≤75 A et soumis à un

raccordement conditionnel
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.100.10 ISBN 978-2-8322-4163-9

– 2 – IEC 61000-3-11:2017 © IEC 2017
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Requirements . 7
5 Limits . 8
6 Test, measurement and evaluation procedures . 9
6.1 Overview. 9
6.2 Test and measurement procedures . 9
6.2.1 Test impedance Z . 9
test
6.2.2 Test of equipment against Z . 10
test
6.2.3 Evaluation against Z . 10
ref
6.3 Evaluation and declaration by the manufacturer of the maximum permissible
system impedance . 10
6.3.1 Comparison of calculated and measured emission values with Clause 5
limits to enable a declaration of compliance with IEC 61000-3-3 . 10
6.3.2 Calculation of the maximum permissible system impedance . 10
6.4 Evaluation and declaration by the manufacturer of the minimum permissible
service current capacity . 11
Annex A (informative) Explanation of flicker exponents . 12
A.1 Overview. 12
A.2 Explanation of Clause 6 . 12
Annex B (informative) Flow chart showing the evaluation and test procedures leading
to the connection of equipment . 17

Figure A.1 – Typical motor starting RMS voltage variation plot . 12
Figure A.2 – Visualization of the relationship between items of equipment “n” and P . 15
st
Figure A.3 – Impedance requirements as a function of individual P values and
st@Zref
penetration level n . 16
Figure B.1 – Flow chart showing the evaluation and test procedures leading to the
connection of equipment . 17
Figure B.2 – Reference network for single and three-phase supplies derived from a
three-phase, four-wire supply . 18

Table 1 – Suffixes and their applications . 9

IEC 61000-3-11:2017 © IEC 2017 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTROMAGNETIC COMPATIBILITY (EMC) –

Part 3-11: Limits – Limitation of voltage changes, voltage fluctuations and
flicker in public low-voltage supply systems – Equipment with rated
current ≤75 A and subject to conditional connection

FOREWORD
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