EN 61000-3-3:2008

SLOVENSKI STANDARD
01-januar-2009
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Electromagnetic compatibility (EMC) - Part 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
Elektromagnetische Verträglichkeit (EMV) -- Teil 3-3: Grenzwerte - Begrenzung von
Spannungsänderungen, Spannungsschwankungen und Flicker in öffentlichen
Niederspannungs-Versorgungsnetzen für Geräte mit einem Bemessungsstrom <= 16 A
je Leiter, die keiner Sonderanschlussbedingung unterliegen
Compatibilité électromagnétique (CEM) - Partie 3-3: Limites - Limitation des variations de
tension, des fluctuations de tension et du papillotement dans les réseaux publics
d'alimentation basse tension, pour les matériels ayant un courant assigné <= 16 A par
phase et non soumis à un raccordement conditionnel
Ta slovenski standard je istoveten z: EN 61000-3-3:2008
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 61000-3-3
NORME EUROPÉENNE
September 2008
EUROPÄISCHE NORM
ICS 33.100.10 Supersedes EN 61000-3-3:1995 + A1:2001 + IS1:2005 + A2:2005

English version
Electromagnetic compatibility (EMC) -
Part 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 61000-3-3:2008)
Compatibilité électromagnétique (CEM) - Elektromagnetische Verträglichkeit (EMV) -
Partie 3-3: Limites - Teil 3-3: Grenzwerte -
Limitation des variations de tension, Begrenzung von Spannungsänderungen,
des fluctuations de tension Spannungsschwankungen und Flicker
et du papillotement dans les réseaux in öffentlichen Niederspannungs-
publics d'alimentation basse tension, Versorgungsnetzen für Geräte
pour les matériels ayant un courant mit einem Bemessungsstrom ≤ 16 A
assigné ≤ 16 A par phase et non soumis je Leiter, die keiner
à un raccordement conditionnel Sonderanschlussbedingung unterliegen
(CEI 61000-3-3:2008) (IEC 61000-3-3:2008)

This European Standard was approved by CENELEC on 2008-09-01. 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, Bulgaria, 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

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

© 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61000-3-3:2008 E
Foreword
The text of document 77A/644/FDIS, future edition 2 of IEC 61000-3-3, 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 61000-3-3 on 2008-09-01.
This European Standard supersedes EN 1000-3-3:1995 + corrigendum July 1997 + A1:2001 + IS1:2005
+ A2:2005.
The following dates were 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) 2009-06-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2011-09-01
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 2004/108/EC and 1999/5/EC. See Annex ZZ.
Annexes ZA and ZZ have been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 61000-3-3:2008 was approved by CENELEC as a European
Standard without any modification.
__________
- 3 - EN 61000-3-3:2008
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 60050-161 1990 International Electrotechnical Vocabulary - -
(IEV) -
Chapter 161: Electromagnetic compatibility

1)
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
1) 2)
IEC 60974-1 - Arc welding equipment - EN 60974-1 2005
Part 1: Welding power sources
IEC 61000-3-2 2005 Electromagnetic compatibility (EMC) - EN 61000-3-2 2006
Part 3-2: Limits - Limits for harmonic current
emissions (equipment input current ≤ 16 A per
phase)
1) 2)
IEC 61000-3-11 - Electromagnetic compatibility (EMC) - EN 61000-3-11 2000
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

1) 2)
IEC 61000-4-15 - Electromagnetic compatibility (EMC) - EN 61000-4-15 1998
Part 4-15: Testing and measurement
techniques - Flickermeter - Functional and
design specifications
1)
Undated reference.
2)
Valid edition at date of issue.

Annex ZZ
(informative)
Coverage of Essential Requirements of EC 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 the
essential requirements as given in Annex I Article 1(a) of the EC Directive 2004/108/EC and the essential
requirements of Article 3.1(b) (emission only) of the EC Directive 1999/5/EC.
Compliance with this standard provides one means of conformity with the specified essential
requirements of the Directives concerned.
WARNING: Other requirements and other EC Directives may be applicable to the products falling within
the scope of this standard.
___________
IEC 61000-3-3
Edition 2.0 2008-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electromagnetic compatibility (EMC) –
Part 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

Compatibilité électromagnétique (CEM) –
Partie 3-3: Limites – Limitation des variations de tension, des fluctuations de
tension et du papillotement dans les réseaux publics d'alimentation basse
tension, pour les matériels ayant un courant assigné ≤16 A par phase et non
soumis à un raccordement conditionnel

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
T
CODE PRIX
ICS 33.100.10 ISBN 2-8318-9831-5

– 2 – 61000-3-3 © IEC:2008
CONTENTS
FOREWORD.3
INTRODUCTION.5
1 Scope.6
2 Normative references.6
3 Definitions.7
4 Assessment of voltage changes, voltage fluctuations and flicker .8
4.1 Assessment of a relative voltage change, "d" .8
4.2 Assessment of the short-term flicker value, P .9
st
4.2.1 Flickermeter.9
4.2.2 Simulation method.9
4.2.3 Analytical method.9
4.2.4 Use of P = 1 curve.10
st
4.3 Assessment of long-term flicker value, P .10
lt
5 Limits.10
6 Test conditions.11
6.1 General.11
6.2 Measurement accuracy.12
6.3 Test supply voltage.12
6.4 Reference impedance.12
6.5 Observation period.12
6.6 General test conditions.13
Annex A (normative) Application of limits and type test conditions
for specific equipment.18
Annex B (normative) Test conditions and procedures for measuring d voltage
max
changes caused by manual switching .25

Figure 1 – Reference network for single-phase and three-phase supplies derived
from a three-phase, four-wire supply.14
Figure 2 – Histogram evaluation of U(t).
Figure 3 – Relative voltage change characteristic .15
Figure 4 – Curve for P =1 for rectangular equidistant voltage changes .16
st
Figure 5 – Shape factors F for double-step and ramp-voltage characteristics.16
Figure 6 – Shape factors F for rectangular and triangular voltage characteristics.17
Figure 7 – Shape factor F for motor-start voltage characteristics
having various front times .17

Table 1 – Assessment method .9
Table A.1 – Electrode parameters.23
Table A.2 – Frequency factor R related to repetition rate "r" .24

61000-3-3 © IEC:2008 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTROMAGNETIC COMPATIBILITY (EMC) –

Part 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
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 Standardizati
...