EN 61000-4-11:2004

SLOVENSKI SIST EN 61000-4-11:2005

STANDARD
junij 2005
Elektromagnetna združljivost (EMC) – 4-11. del: Preskusne in merilne tehnike –
Preskusi odpornosti proti upadom napetosti, kratkotrajnim prekinitvam in
napetostnim kolebanjem (IEC 61000-4-11:2004)
Electromagnetic compatibility (EMC) - Part 4-11: Testing and measurement
techniques - Voltage dips, short interruptions and voltage variations immunity tests
(IEC 61000-4-11:2004)
ICS 33.100.20 Referenčna številka
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

EUROPEAN STANDARD EN 61000-4-11
NORME EUROPÉENNE
EUROPÄISCHE NORM August 2004
ICS 33.100.20 Supersedes EN 61000-4-11:1994 + A1:2001

English version
Electromagnetic compatibility (EMC)
Part 4-11: Testing and measurement techniques -
Voltage dips, short interruptions and voltage variations immunity tests
(IEC 61000-4-11:2004)
Compatibilité électromagnétique (CEM) Elektromagnetische Verträglichkeit (EMV)
Partie 4-11: Techniques d'essai Teil 4-11: Prüf- und Messverfahren -
et de mesure - Prüfungen der Störfestigkeit
Essais d'immunité aux creux de tension, gegen Spannungseinbrüche,
coupures brèves et variations de tension Kurzzeitunterbrechungen
(CEI 61000-4-11:2004) und Spannungsschwankungen
(IEC 61000-4-11:2004)
This European Standard was approved by CENELEC on 2004-06-01. 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 Central Secretariat 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 Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden,
Switzerland and United Kingdom.

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

Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2004 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 61000-4-11:2004 E
Foreword
The text of document 77A/452/FDIS, future edition 2 of IEC 61000-4-11, prepared by SC 77A, Low
frequency phenomena, of IEC TC 77, Electromagnetic compatibility, was submitted to the
IEC-CENELEC parallel vote and was approved by CENELEC as EN 61000-4-11 on 2004-06-01.
This European Standard replaces EN 61000-4-11:1994 + A1:2001.
It constitutes a technical revision in which
1) preferred test values and durations have been added for the different environment classes;
2) the tests for the three-phase systems have been specified.
The following dates were fixed:

– latest date by which the EN has to be implemented

at national level by publication of an identical
(dop) 2005-03-01
national standard or by endorsement

– latest date by which the national standards conflicting
(dow) 2007-06-01
with the EN have to be withdrawn
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 61000-4-11:2004 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 standards
indicated:
IEC 61000-2-4 NOTE Harmonized as EN 61000-2-4:2002 (not modified).
IEC 61000-4-14 NOTE Harmonized as EN 61000-4-14:1999 (not modified).
__________
- 3 - EN 61000-4-11:2004
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 Where an international publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
Publication Year Title EN/HD Year
1)
IEC/TR 61000-2-8 - Electromagnetic compatibility (EMC) - -
Part 2-8: Environment - Voltage dips and
short interruptions on public electric
power supply systems with statistical
measurement results
1)
Undated reference.
INTERNATIONAL IEC
STANDARD 61000-4-11
Second edition
2004-03
BASIC EMC PUBLICATION
Electromagnetic compatibility (EMC) –
Part 4-11:
Testing and measurement techniques –
Voltage dips, short interruptions and
voltage variations immunity tests

 IEC 2004 Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical,
including photocopying and microfilm, without permission in writing from the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
PRICE CODE
U
Commission Electrotechnique Internationale
International Electrotechnical Commission
Международная Электротехническая Комиссия
For price, see current catalogue

61000-4-11  IEC:2004 – 3 –
CONTENTS
FOREWORD.5
INTRODUCTION.9

1 Scope.11
2 Normative references.11
3 Terms and definitions .11
4 General.15
5 Test levels.15
6 Test instrumentation.23
7 Test set-up.27
8 Test procedures.29
9 Evaluation of test results.33
10 Test report.35

Annex A (normative) Test circuit details.37
Annex B (informative) Electromagnetic environment classes.43
Annex C (informative) Test instrumentation .45

Bibliography .51

Figure 1 – Voltage dip - Examples .21
Figure 2 – Short interruption.21
Figure 3 – Voltage variation.23
Figure 4 – Phase-to-neutral and phase-to-phase testing on three-phase systems.33
Figure A.1 – Circuit for determining the inrush current drive capability of the short
interruptions generator .39
Figure A.2 – Circuit for determining the peak inrush current requirement of an EUT .41
Figure C.1 – Schematics of test instrumentation for voltage dips, short interruptions
and voltage variations .47
Figure C.2 – Schematic of test instrumentation for three-phase voltage dips, short
interruptions and voltage variations using power amplifier.49

Table 1 – Preferred test level and durations for voltage dips .17
Table 2 – Preferred test level and durations for short interruptions.17
Table 3 – Timing of short-term supply voltage variations.19
Table 4 – Generator specifications .25

61000-4-11  IEC:2004 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTROMAGNETIC COMPATIBILITY (EMC) –

Part 4-11: Testing and measurement techniques –
Voltage dips, short interruptions and
voltage variations immunity tests

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61000-4-11 has been prepared by subcommittee 77A: Low
frequency phenomena, of IEC technical committee 77: Electromagnetic compatibility.
This second edition cancels and replaces the first edition published in 1994 and its amendment
1 (2000). This second edition constitutes a technical revision in which
1) preferred test values and durations have been added for the different environment classes;
2) the tests for the three-phase systems have been specified.
It forms part 4-11 of IEC 61000. It has the status of a Basic EMC Publication in accordance
with IEC Guide 107.
61000-4-11  IEC:2004 – 7 –
The text of this standard is based on the following documents:
FDIS Report on voting
77A/452/FDIS 77A/455/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
The committee has decided that the contents of this publication will remain unchanged until
2008. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
61000-4-11  IEC:2004 – 9 –
INTRODUCTION
IEC 61000 is published in separate parts according to the following structure:
Part 1: General
General considerat
...