EN 61204-3:2000

SLOVENSKI SIST EN 61204-3:2002
prva izdaja
STANDARD
marec 2002
Low-voltage power supplies, d.c. output – Part 3: Electromagnetic compatibility
(EMC) (IEC 61204-3:2000)
ICS 5HIHUHQþQDãWHYLOND
29.200; 33.100.01
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EUROPEAN STANDARD EN 61204-3
NORME EUROPÉENNE
EUROPÄISCHE NORM December 2000

ICS 29.200;33.100
English version
Low voltage power supplies, d.c. output
Part 3: Electromagnetic compatibility (EMC)
(IEC 61204-3:2000)
Alimentations basse tension,  Stromversorgungsgeräte für
sortie continue Niederspannung mit Gleichstromausgang
Partie 3: Compatibilité électromagnétique Teil 3: Elektromagnetische Verträglichkeit
(CEM) (EMV)
(CEI 61204-3:2000) (IEC 61204-3:2000)

This European Standard was approved by CENELEC on 2000-11-01. 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, Czech Republic,
Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway,
Portugal, 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

© 2000 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 61204-3:2000 E
Page 2
Foreword
The text of document 22E/75/FDIS, future edition 1 of IEC 61204-3, prepared by SC 22E, Stabilized
power supplies, of IEC TC 22, Power electronics, was submitted to the IEC-CENELEC parallel vote and
was approved by CENELEC as EN 61204-3 on 2000-11-01.
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) 2001-08-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2003-11-01

Annexes designated "normative" are part of the body of the standard.
Annexes designated "informative" are given for information only.
In this standard, annexes A, F and ZA are normative and annexes B, C, D, E, G, H and I are informative.
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 61204-3:2000 was approved by CENELEC as a European
Standard without any modification.
__________
Page 3
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
This European Standard incorporates by dated or undated reference, provisions from other publications.
These normative references are cited at the appropriate places in the text and the publications are listed
hereafter. For dated references, subsequent amendments to or revisions of any of these publications
apply to this European Standard only when incorporated in it by amendment or revision. For undated
references the latest edition of the publication referred to applies (including amendments).
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 60050-121 1998 International Electrotechnical Vocabulary - -
Part 121: Electromagnetism
IEC 60050-131 1978 Chapter 131: Electric and magnetic circuits - -

IEC 60050-151 1978 Chapter 151: Electrical and magnetic - -
devices
IEC 60050-161 1990 Chapter 161: Electromagnetic compatibility - -

IEC 60050-551 1998 Part 551: Power electronics - -

IEC 60146-1-1 1991 Semiconductor convertors - General EN 60146-1-1 1993
requirements and line commutated
convertors
Part 1-1: Specifications of basic
requirements
IEC 60664-1 (mod) 1992 Insulation coordination for equipment within HD 625.1 S1 1996
low-voltage systems + corr. November 1996
Part 1: Principles, requirements and tests

IEC 61204 (mod) 1993 Low-voltage power supply devices, d.c. EN 61204 1995
output - Performance characteristics and
safety requirements
IEC 61000-3-2 2000 Electromagnetic compatibility (EMC) EN 61000-3-2 2000
(mod) Part 3-2: Limits - Limits for harmonic current
emissions (equipment input current up to
and including 16 A per phase)
IEC 61000-3-3 1994 Part 3-3: Limits - Limitation of voltage EN 61000-3-3 1995
fluctuations and flicker in low-voltage supply + corr. July 1997
systems for equipment with rated current up
to and including 16 A
IEC 61000-4-2 1995 Part 4-2: Testing and measurement EN 61000-4-2 1995
techniques - Electrostatic discharge
immunity test
A1 1998  A1 1998
Page 4
Publication Year Title EN/HD Year
IEC 61000-4-3 1995 Part 4-3: Testing and measurement EN 61000-4-3 1996
(mod) techniques - Radiated, radio-frequency,
electromagnetic field immunity test

IEC 61000-4-4 1995 Part 4-4: Testing and measurement EN 61000-4-4 1995
techniques - Electrical fast transient/burst
immunity test
IEC 61000-4-5 1995 Part 4-5: Testing and measurement EN 61000-4-5 1995
techniques - Surge immunity test

IEC 61000-4-6 1996 Part 4-6: Testing and measurement EN 61000-4-6 1996
techniques - Immunity to conducted
disturbances, induced by radio-frequency
fields
IEC 61000-4-11 1994 Part 4-11: Testing and measurement EN 61000-4-11 1994
techniques - Voltage dips, short
interruptions and voltage variations
immunity tests
CISPR 11 (mod) 1997 Industrial, scientific and medical (ISM) EN 55011 1998
radio-frequency equipment - Radio
disturbance characteristics - Limits and
methods of measurement
CISPR 14-1 2000 Electromagnetic compatibility - EN 55014-1 2000
Requirements for household appliances,
electric tools and similar apparatus
Part 1: Emission
CISPR 16-1 1999 Specification for radio disturbance and - -
immunity measuring apparatus and
methods
Part 1: Radio disturbance and immunity
measuring apparatus
CISPR 22 (mod) 1997 Information technology equipment - Radio EN 55022 1998
disturbance characteristics - Limits and + corr. August 1999
methods of measurement
ISO/IEC Guide 25 1990 General requirements for the competence - -
of calibration and testing laboratories

NORME CEI
INTERNATIONALE IEC
61204-3
INTERNATIONAL
Première édition
STANDARD
First edition
2000-11
Alimentations basse tension, sortie continue –
Partie 3:
Compatibilité électromagnétique (CEM)
Low-voltage power supplies, d.c. output –
Part 3:
Electromagnetic compatibility (EMC)
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utilisée sous quelque forme que ce soit et par aucun procédé, any form or by any means, electronic or mechanical,
électronique ou mécanique, y compris la photocopie et les including photocopying and microfilm, without permission in
microfilms, sans l'accord écrit de l'éditeur. writing from the publisher.
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61204-3  IEC:2000 – 3 –
CONTENTS
Page
FOREWORD . 7
Clause
1 Scope and object . 11
2 Normative references . 13
3 Terms and definitions. 17
4 Applicability of tests to different PSU technologies. 23
5 General requirements and test conditions . 25
5.1 General requirements. 25
5.2 Test conditions. 25
6 Emission requirements . 25
6.1 Limits in defined environments . 25
6.2 Low frequency phenomena (f < 9 kHz; a.c. input only) . 29
6.3 High frequency conducted phenomena . 31
6.4 High frequency radiated phenomena . 31
7 Immunity requirements . 35
7.1 Performance criteria. 35
7.2 Basic immunity requirements, high frequency disturbances. 37
8 Configurations and combinations of power supplies . 47
8.1 Modular PSUs. 47
8.2 Power supply systems. 47
8.3 Power supply installations . 47
8.4 Distributed power supplies . 47
8.5 Power supplies in parallel or in series. 47
9 Power supply families. 47
10 Statistical aspects . 49
11 Safety aspects . 49
12 Test report . 49
Annex A (normative) Guidelines on the classification of PSUs . 51
Annex B (informative) Commutation notches. 55
Annex C (informative) Calculation and simulation of the input current harmonics . 57
Annex D (informative) Special consideration for d.c. inputs . 59
Annex E (informative) Critical frequency for high frequency power measurement. 65
Annex F (normative) Guidelines on power supply families . 67
Annex G (informative) Summary of classification of environments and limits . 71
Annex H (informative) Emission Limits . 73
Annex I (informative) Explanatory remark for applying criterion B for continuous
disturbance phenomena (see 7.1) . 75

61204-3  IEC:2000 – 5 –
Page
Figure 1 – Test set-up for the measurement of disturbance power. 35
Table 1 – Applicability of tests . 23
Table 2 – Criteria to prove the performance of a PSU against EM disturbances . 37
Table 3 – Immunity – Enclosure port . 39
Table 4 – Immunity – Ports for signal lines and control lines. 39
Table 5 – Immunity – DC input and output power ports. 41
Table 6 – Immunity – AC input power ports . 41
Table 7 – Immunity – Enclosure port . 43
Table 8 – Immunity – Ports for signal lines and control lines. 43
Table 9 – Immunity – DC input and output power ports. 45
Table 10 – Immunity – AC input power ports . 45
Table A.1 – Classification of power supplies and the relevant EMC standards . 53
Table D.1 – Immunity – DC input power ports – Input category a). 61
Table D.2 – Immunity – DC input power ports – Input category b). 61
Table D.3 – Immunity – Enclosure port – Input categories a and b. 63
Table G.1 – Summarized classification of environments and limits . 71
Table H.1 – Limits of mains terminal disturbance voltage (a.c. input port). 73
Table H.2 – Limits for electromagnetic radiation/interference power disturbance
(all field strength limits refer to quasi-peak measurements) .
...