Low-voltage switch mode power supplies - Part 3: Electromagnetic compatibility (EMC)

Specifies electromagnetic compatibility (EMC) requirements for power supply units (PSUs) providing d.c. output(s) up to 200 V at a power level of up to 30 kW, operating from a.c. or d.c. source voltages of up to 600 V.

Stromversorgungsgeräte für Niederspannung mit Gleichstromausgang - Teil 3: Elektromagnetische Verträglichkeit (EMV)

Alimentations à découpage basse tension - Partie 3: Compatibilité électromagnétique (CEM)

L'IEC 61204-3:2016 spécifie les exigences de compatibilité électromagnétique (CEM) pour les alimentations à découpage (switch mode power supply - SMPS) alimentées par des sources ne dépassant pas 1 000 V en courant alternatif et 1 500 V en courant continu fournissant un courant alternatif et/ou continu, à l'exception de la ou des sorties de l'onduleur alimentant le réseau en courant alternatif. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: a) modification du titre avec la suppression des termes "sortie continue" et l'ajout des termes "à découpage"; b) modifications dans le domaine d'application: 1.1.1 Matériel couvert par le présent document; c) mise à jour des références normatives pour mentionner les dernières éditions ou les références datées; d) modifications de la formulation et/ou des notes relatives aux exigences du Guide 24 du CENELEC et du Guide 107 de l'IEC; e) révisions des limites relatives aux émissions pour les aligner avec celles des dernières versions des références normatives applicables; f) révisions des exigences relatives à l'immunité pour les aligner avec celles des dernières versions des références normatives applicables; g) correction d'ordre typographiques.

Nizkonapetostni stikalni napajalniki z enosmernim (DC) izhodom - 3. del: Elektromagnetna združljivost (EMC) (IEC 61204-3:2016)

Določa zahteve glede elektromagnetne združljivosti (EMC) za napajalnike (PSU) z enosmernim (DC) izhodom do 200 V pri moči do 30 kW, ki delujejo na dvosmerni ali enosmerni napajalni napetostih do 600 V.

General Information

Status
Published
Publication Date
06-Sep-2018
Technical Committee
Drafting Committee
Current Stage
6060 - Document made available
Due Date
07-Sep-2018
Completion Date
07-Sep-2018

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SLOVENSKI STANDARD
SIST EN IEC 61204-3:2018
01-december-2018
Nadomešča:
SIST EN 61204-3:2002
Nizkonapetostni stikalni napajalniki z enosmernim (DC) izhodom - 3. del:
Elektromagnetna združljivost (EMC) (IEC 61204-3:2016)

Low voltage power supplies, d.c. output - Part 3: Electromagnetic compatibility (EMC)

(IEC 61204-3:2016)
Stromversorgungsgeräte für Niederspannung mit Gleichstromausgang - Teil 3:
Elektromagnetische Verträglichkeit (EMV) (IEC 61204-3:2016)

Alimentations basse tension, sortie continue - Partie 3 : Compatibilité électromagnétique

(CEM) (IEC 61204-3:2016)
Ta slovenski standard je istoveten z: EN IEC 61204-3:2018
ICS:
29.200 Usmerniki. Pretvorniki. Rectifiers. Convertors.
Stabilizirano električno Stabilized power supply
napajanje
33.100.01 Elektromagnetna združljivost Electromagnetic compatibility
na splošno in general
SIST EN IEC 61204-3:2018 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN IEC 61204-3:2018
---------------------- Page: 2 ----------------------
SIST EN IEC 61204-3:2018
EUROPEAN STANDARD EN IEC 61204-3
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2018
ICS 29.200; 33.100 Supersedes EN 61204-3:2000
English Version
Low-voltage switch mode power supplies - Part 3:
Electromagnetic compatibility (EMC)
(IEC 61204-3:2016)

Alimentations à découpage basse tension - Partie 3: Stromversorgungsgeräte für Niederspannung mit

Compatibilité électromagnétique (CEM) Gleichstromausgang - Teil 3: Elektromagnetische

(IEC 61204-3:2016) Verträglichkeit (EMV)
(IEC 61204-3:2016)

This European Standard was approved by CENELEC on 2018-07-09. 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,

Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, 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

© 2018 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN IEC 61204-3:2018 E
---------------------- Page: 3 ----------------------
SIST EN IEC 61204-3:2018
EN IEC 61204-3:2018 (E)
European foreword

The text of document 22E/174/FDIS, future edition 3 of IEC 61204-3, prepared by SC 22E "Stabilized

power supplies" of IEC/TC 22 "Power electronic systems and equipment" was submitted to the IEC-

CENELEC parallel vote and approved by CENELEC as EN IEC 61204-3:2018.
The following dates are fixed:

• latest date by which the document has to be implemented at national (dop) 2019-04-09

level by publication of an identical national standard or by endorsement

• latest date by which the national standards conflicting with the (dow) 2021-07-09

document have to be withdrawn
This document supersedes EN 61204-3:2000.

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.

This document has been prepared under a mandate given to CENELEC by the European

Commission and the European Free Trade Association.
Endorsement notice

The text of the International Standard IEC 61204-3:2016 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 60364-4-41 NOTE Harmonized as HD 60364-4-41.
IEC 60664-1 NOTE Harmonized as EN 60664-1.
IEC 61000-1-2 NOTE Harmonized as EN 61000-1-2.
IEC 61000-3-11 NOTE Harmonized as EN 61000-3-11.
IEC 61558-1 NOTE Harmonized as EN 61558-1.
IEC 62040-1 NOTE Harmonized as EN 62040-1.
ISO/IEC 17025 NOTE Harmonized as EN ISO/IEC 17025.
CISPR 14-1:2005 NOTE Harmonized as EN 55014-1:2006 (not modified).
CISPR 15 NOTE Harmonized as EN 55015.
---------------------- Page: 4 ----------------------
SIST EN IEC 61204-3:2018
EN IEC 61204-3:2018 (E)
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 60050-121 - International Electrotechnical Vocabulary - -
(IEV) -- Part 121: Electromagnetism
IEC 60050-151 - International Electrotechnical Vocabulary - - -
Part 151: Electrical and magnetic devices
IEC 60050-161 - International Electrotechnical Vocabulary - -
(IEV) -- Chapter 161: Electromagnetic
compatibility
IEC 60050-551 - International Electrotechnical Vocabulary - -
(IEV) -- Part 551: Power electronics
IEC 60065 - Audio, video and similar electronic EN 60065 -
apparatus - Safety requirements
IEC 60146-1-1 - Semiconductor convertors - General - -
requirements and line commutated
convertors -- Part 1-1: Specifications of
basic requirements
IEC 60601-1 - Medical electrical equipment - Part 1: EN 60601-1 -
General requirements for basic safety and
essential performance
IEC 60950-1 - Information technology equipment - Safety EN 60950-1 -
- Part 1: General requirements
IEC 61000-3-2 2014 Electromagnetic compatibility (EMC) - Part EN 61000-3-2 2014
3-2: Limits - Limits for harmonic current
emissions (equipment input current - 16 A
per phase)
IEC 61000-3-3 - Electromagnetic compatibility (EMC) - Part EN 61000-3-3 -
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
---------------------- Page: 5 ----------------------
SIST EN IEC 61204-3:2018
EN IEC 61204-3:2018 (E)
IEC 61000-3-12 - Electromagnetic compatibility (EMC) -- Part EN 61000-3-12 -
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 61000-4-2 - Electromagnetic compatibility (EMC) - Part EN 61000-4-2 -
4-2: Testing and measurement techniques
- Electrostatic discharge immunity test
IEC 61000-4-3 - Electromagnetic compatibility (EMC) - Part - -
4-3: Testing and measurement techniques
- Radiated, radio-frequency,
electromagnetic field immunity test
IEC 61000-4-4 - Electromagnetic compatibility (EMC) -- Part EN 61000-4-4 -
4-4: Testing and measurement techniques
- Electrical fast transient/burst immunity
test
IEC 61000-4-5 - Electromagnetic compatibility (EMC) - Part EN 61000-4-5 -
4-5: Testing and measurement techniques
- Surge immunity test
IEC 61000-4-6 - Electromagnetic compatibility (EMC) - Part EN 61000-4-6 -
4-6: Testing and measurement techniques
- Immunity to conducted disturbances,
induced by radio-frequency fields
IEC 61000-4-8 - Electromagnetic compatibility (EMC) -- Part EN 61000-4-8 -
4-8: Testing and measurement techniques
- Power frequency magnetic field immunity
test
IEC 61000-4-11 - Electromagnetic compatibility (EMC) -- Part EN 61000-4-11 -
4-11: Testing and measurement
techniques - Voltage dips, short
interruptions and voltage variations
immunity tests
IEC 61000-6-1 - Electromagnetic compatibility (EMC) - Part EN 61000-6-1 -
6-1: Generic standards - Immunity
standard for residential, commercial and
light-industrial environments
IEC 61000-6-2 - Electromagnetic compatibility (EMC) - Part EN 61000-6-2 -
6-2: Generic standards - Immunity
standard for industrial environments
IEC 61000-6-3 - Electromagnetic compatibility (EMC) -- Part EN 61000-6-3 -
6-3: Generic standards - Emission
standard for residential, commercial and
light-industrial environments
IEC 61000-6-4 - Electromagnetic compatibility (EMC) – Part EN IEC 61000-6-4 -
6-4: Generic standards – Emission
standard for industrial environments
IEC 61010-1 - Safety requirements for electrical EN 61010-1 -
equipment for measurement, control, and
laboratory use - Part 1: General
requirements
IEC 62368-1 - Audio/video, information and EN 62368-1 -
communication technology equipment -
Part 1: Safety requirements
---------------------- Page: 6 ----------------------
SIST EN IEC 61204-3:2018
EN IEC 61204-3:2018 (E)
CISPR 11 - Industrial, scientific and medical equipment EN 55011 -
- Radio-frequency disturbance
characteristics - Limits and methods of
measurement
CISPR 16-1 series Specification for radio disturbance and EN 55016-1 series
immunity measuring apparatus and
methods - Part 1-1: Radio disturbance and
immunity measuring apparatus -
Measuring apparatus
CISPR 16-1-2 2014 Specification for radio disturbance and EN 55016-1-2 2014
immunity measuring apparatus and
methods - Part 1-2: Radio disturbance and
immunity measuring apparatus - Coupling
devices for conducted disturbance
measurements
CISPR 16-1-3 - Specification for radio disturbance and EN 55016-1-3 -
immunity measuring apparatus and
methods -- Part 1-3: Radio disturbance and
immunity measuring apparatus - Ancillary
equipment - Disturbance power
CISPR 16-2-1 2014 Specification for radio disturbance and EN 55016-2-1 2014
immunity measuring apparatus and
methods - Part 2-1: Methods of
measurement of disturbances and
immunity - Conducted disturbance
measurements
CISPR 16-2-2 - Specification for radio disturbance and EN 55016-2-2 -
immunity measuring apparatus and
methods -- Part 2-2: Methods of
measurement of disturbances and
immunity - Measurement of disturbance
power
CISPR 16-2-3 - Specification for radio disturbance and EN 55016-2-3 -
immunity measuring apparatus and
methods - Part 2-3: Methods of
measurement of disturbances and
immunity - Radiated disturbance
measurements
---------------------- Page: 7 ----------------------
SIST EN IEC 61204-3:2018
---------------------- Page: 8 ----------------------
SIST EN IEC 61204-3:2018
IEC 61204-3
Edition 3.0 2016-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Low-voltage switch mode power supplies –
Part 3: Electromagnetic compatibility (EMC)
Alimentations à découpage basse tension –
Partie 3: Compatibilité électromagnétique (CEM)
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.200; 33.100 ISBN 978-2-8322-3689-5

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 9 ----------------------
SIST EN IEC 61204-3:2018
– 2 – IEC 61204-3:2016 © IEC 2016
CONTENTS

FOREWORD ........................................................................................................................... 4

1 Scope and object ............................................................................................................. 6

1.1 Scope ..................................................................................................................... 6

1.1.1 Equipment covered by this document ............................................................... 6

1.1.2 Additional requirements ................................................................................... 6

1.1.3 Exclusions ....................................................................................................... 6

1.1.4 Types of power supply ..................................................................................... 7

1.1.5 Configurations and combinations of power supplies ......................................... 7

1.2 Object ..................................................................................................................... 8

2 Normative references ...................................................................................................... 8

3 Terms and definitions .................................................................................................... 10

4 Applicability of tests to different PSU technologies ........................................................ 13

5 General requirements and test conditions ...................................................................... 14

5.1 General requirements ........................................................................................... 14

5.2 Test conditions ..................................................................................................... 14

6 Emission requirements .................................................................................................. 14

6.1 General ................................................................................................................. 14

6.2 Low frequency phenomena (f ≤ 9 kHz; AC input only) .......................................... 14

6.2.1 Commutation notches .................................................................................... 14

6.2.2 Current harmonics and interharmonics .......................................................... 14

6.2.3 Voltage fluctuations and flicker ...................................................................... 15

6.3 High frequency conducted emission ...................................................................... 15

6.3.1 General ......................................................................................................... 15

6.3.2 High frequency conducted emission for input power ports .............................. 15

6.3.3 High frequency conducted emission for DC output power ports ...................... 16

6.4 High frequency radiated emission ......................................................................... 16

6.4.1 General ......................................................................................................... 16

6.4.2 Radiated disturbance measurements ............................................................. 16

6.4.3 Measurement of disturbance power ............................................................... 16

6.4.4 Restrictions for the application of interference power measurement ............... 17

7 Immunity requirements .................................................................................................. 18

7.1 Performance criteria ............................................................................................. 18

7.2 Basic immunity requirements, high frequency disturbances ................................... 18

7.2.1 General ......................................................................................................... 18

7.2.2 Immunity level for residential, commercial and light industrial

environment ................................................................................................... 18

7.2.3 Immunity level for industrial environment ....................................................... 21

8 Power supply families aspects ....................................................................................... 24

9 Statistical aspects ......................................................................................................... 25

10 Safety aspects ............................................................................................................... 25

11 Test report ..................................................................................................................... 25

Annex A (normative) Guidelines on the classification of PSUs ............................................. 26

A.1 General ................................................................................................................. 26

A.2 Stand alone power supplies .................................................................................. 26

A.3 Component power supplies ................................................................................... 26

---------------------- Page: 10 ----------------------
SIST EN IEC 61204-3:2018
IEC 61204-3:2016 © IEC 2016 – 3 –

Annex B (informative) Commutation notches ........................................................................ 28

Annex C (informative) Calculation and simulation of the input current harmonics ................. 29

Annex D (informative) Special considerations for DC/DC converters .................................... 30

D.1 General ................................................................................................................. 30

D.2 Emission ............................................................................................................... 30

D.3 Immunity ............................................................................................................... 30

Annex E (informative) Critical frequency for high frequency power measurement ................. 33

Annex F (normative) Guidelines on power supply families .................................................... 34

F.1 General ................................................................................................................. 34

F.2 Emission ............................................................................................................... 34

F.3 Immunity performance .......................................................................................... 34

Annex G (informative) Summary of classification of environments and limits ........................ 36

G.1 Residential, commercial and light industrial environment ...................................... 36

G.2 Industrial environment ........................................................................................... 36

G.3 Special applications .............................................................................................. 36

G.4 Special considerations for DC/DC converters ........................................................ 37

Annex H (normative) Emission limits .................................................................................... 38

Bibliography .......................................................................................................................... 40

Figure 1 – Examples of ports ................................................................................................ 11

Figure 2 – Test set-up for the measurement of disturbance power ........................................ 17

Table 1 – Criteria to prove the performance of a PSU against EM disturbances .................... 18

Table 2 – Immunity – Enclosure port – Residential, commercial and light industrial

environment .......................................................................................................................... 19

Table 3 – Immunity – Ports for signal lines and control lines Residential, commercial

and light industrial environment ............................................................................................ 19

Table 4 – Immunity – DC input and output power ports Residential, commercial and

light industrial environment ................................................................................................... 20

Table 5 – Immunity – AC input power ports – Residential, commercial and light

industrial environment ........................................................................................................... 21

Table 6 – Immunity – Enclosure port – Industrial environment ............................................... 22

Table 7 – Immunity – Ports for signal lines and control lines – Industrial environment .......... 22

Table 8 – Immunity – DC input and output power ports – Industrial environment ................... 23

Table 9 – Immunity – AC input power ports – Industrial environment..................................... 24

Table A.1 – Classification of power supplies and the relevant EMC standards ...................... 27

Table D.1 – Immunity – DC input power ports – Input category a .......................................... 31

Table D.2 – Immunity – DC input power ports – Input category b .......................................... 31

Table D.3 – Immunity – Enclosure port – Input categories a and b ........................................ 32

Table H.1 – Limits of mains terminal disturbance voltage (AC input port) ............................. 38

Table H.2 – Limits of mains terminal disturbance voltage (DC input and DC output

power port) ........................................................................................................................... 38

Table H.3 – Limits for electromagnetic radiation/interference power disturbance (all

field strength limits refer to quasi-peak measurements) ........................................................ 39

Table H.4 – Disturbance power limits for the frequency range 30 MHz to 300 MHz ............... 39

---------------------- Page: 11 ----------------------
SIST EN IEC 61204-3:2018
– 4 – IEC 61204-3:2016 © IEC 2016
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
LOW-VOLTAGE SWITCH MODE POWER SUPPLIES –
Part 3: Electromagnetic compatibility (EMC)
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 itself does not provide any attestation of conformity. Independent certification bodies provide conformity

assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any

services carried out by independent certification bodies.

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 61204-3 has been prepared by subcommittee 22E: Stabilized

power supplies, of IEC technical committee 22: Power electronic systems and equipment.

IEC 61204-3 has the status of a product family standard.

This third edition cancels and replaces the second edition published in 2011. This edition

constitutes a technical revision.

This edition includes the following significant technical changes with respect to the previous

edition:

a) the title has been changed by deleting the wording "DC output-" from the title and adding

"switch mode" in the title;
b) changes in the scope: 1.1.1 Equipment covered by this document;

c) update of the normative references to the latest editions or dated references;

---------------------- Page: 12 ----------------------
SIST EN IEC 61204-3:2018
IEC 61204-3:2016 © IEC 2016 – 5 –

d) change of wording or/and notes regarding the requirements of CENELEC Guide 24 and

IEC Guide 107;

e) revision of the emission limits to align with the latest editions of the applicable normative

references;

f) revision of the immunity requirements to align with the latest editions of the applicable

normative references;
g) correction of typographical errors.
The text of this standard is based on the following documents:
FDIS Report on voting
22E/174/FDIS 22E/176/RVD

Full information on the voting for the approval of this document 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.

A list of all parts of IEC 61204 series, under the general title Low-voltage power supplies, d.c.

output, can be found on the IEC website.

Future standards in this series will carry the new general title as cited above. Titles of existing

standards in this series will be updated at the time of the next edition.

The committee has decided that the contents of this publication will remain unchanged until

the stability date indicated on the IEC website under "http://webstore.iec.ch" in the data

related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
---------------------- Page: 13 ----------------------
SIST EN IEC 61204-3:2018
– 6 – IEC 61204-3:2016 © IEC 2016
LOW-VOLTAGE SWITCH MODE POWER SUPPLIES –
Part 3: Electromagnetic compatibility (EMC)
1 Scope and object
1.1 Scope
1.1.1 Equipment covered by this document

This part of IEC 61204 specifies the electromagnetic compatibility (EMC) requirements for

switch mode power supply (SMPS) units supplied by source voltages up to 1 000 V AC or

1 500 V DC providing AC and/or DC output(s), except inverter output(s) establishing AC

mains (see exceptions under 1.1.3.)
NOTE 1 This document by definition covers DC/DC converters.

NOTE 2 Power supplies can provide accessory AC mains socket outlets, when such outputs are supplied from the

AC mains.

NOTE 3 Ringing generators used in telecoms applications are covered by this document.

This product standard covers both stand alone and component power supply (PSU) units as

defined in this document. It covers PSU units for use in or with IT equipment normally covered

by IEC 60950-1 and/or IEC 62368-1; PSU units for use in or with measurement, control and

laboratory equipment normally covered by IEC 61010-1; PSU units for use in or with medical

equipment – normally covered by IEC 60601-1; PSU units for use in or with audio, video and

similar electronic apparatus – normally covered by IEC 60065 and/or IEC 62368-1. It also

covers DC power
...

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Nizkonapetostni stikalni napajalniki z enosmernim (DC) izhodom - 3. del: Elektromagnetna združljivost (EMC) (IEC 61204-3:2016)Stromversorgungsgeräte für Niederspannung mit Gleichstromausgang - Teil 3: Elektromagnetische Verträglichkeit (EMV) (IEC 61204-3:2016)Alimentations basse tension, sortie continue - Partie 3 : Compatibilité électromagnétique (CEM) (IEC 61204-3:2016)Low voltage power supplies, d.c. output - Part 3: Electromagnetic compatibility (EMC) (IEC 61204-3:2016)33.100.01Elektromagnetna združljivost na splošnoElectromagnetic compatibility in general29.200QDSDMDQMHRectifiers. Convertors. Stabilized power supplyICS:Ta slovenski standard je istoveten z:EN IEC 61204-3:2018SIST EN 61204-3:2018en01-december-2018SIST EN 61204-3:2018SLOVENSKI

STANDARDSIST EN 61204-3:20021DGRPHãþD
SIST EN 61204-3:2018
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN IEC 61204-3
September 2018 ICS 29.200; 33.100
Supersedes
EN 61204-3:2000
English Version

Low-voltage switch mode power supplies - Part 3: Electromagnetic compatibility (EMC) (IEC 61204-3:2016)

Alimentations à découpage basse tension - Partie 3: Compatibilité électromagnétique (CEM) (IEC 61204-3:2016)

Stromversorgungsgeräte für Niederspannung mit Gleichstromausgang - Teil 3: Elektromagnetische Verträglichkeit (EMV) (IEC 61204-3:2016) This European Standard was approved by CENELEC on 2018-07-09. 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, 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 © 2018 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN IEC 61204-3:2018 E SIST EN 61204-3:2018

EN IEC 61204-3:2018 (E) 2 European foreword The text of document 22E/174/FDIS, future edition 3 of IEC 61204-3, prepared by SC 22E "Stabilized power supplies" of IEC/TC 22 "Power electronic systems and equipment" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN IEC 61204-3:2018. The following dates are fixed: • latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2019-04-09 • latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2021-07-09

This document supersedes EN 61204-3:2000. 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.

This document has been prepared under a mandate given to CENELEC by the European Commission and the European Free Trade Association. Endorsement notice The text of the International Standard IEC 61204-3:2016 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 60364-4-41 NOTE Harmonized as HD 60364-4-41. IEC 60664-1 NOTE Harmonized as EN 60664-1. IEC 61000-1-2 NOTE Harmonized as EN 61000-1-2. IEC 61000-3-11 NOTE Harmonized as EN 61000-3-11. IEC 61558-1 NOTE Harmonized as EN 61558-1. IEC 62040-1 NOTE Harmonized as EN 62040-1. ISO/IEC 17025 NOTE Harmonized as EN ISO/IEC 17025. CISPR 14-1:2005 NOTE Harmonized as EN 55014-1:2006 (not modified). CISPR 15 NOTE Harmonized as EN 55015.

SIST EN 61204-3:2018
EN IEC 61204-3:2018 (E) 3 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 60050-121 -

International Electrotechnical Vocabulary (IEV) -- Part 121: Electromagnetism - -

IEC 60050-151 -

International Electrotechnical Vocabulary - Part 151: Electrical and magnetic devices - -

IEC 60050-161 -

International Electrotechnical Vocabulary (IEV) -- Chapter 161: Electromagnetic compatibility - -

IEC 60050-551 -

International Electrotechnical Vocabulary (IEV) -- Part 551: Power electronics - -

IEC 60065 -
Audio, video and similar electronic apparatus - Safety requirements EN 60065 -
IEC 60146-1-1 -

Semiconductor convertors - General requirements and line commutated convertors -- Part 1-1: Specifications of basic requirements - -

IEC 60601-1 -

Medical electrical equipment - Part 1: General requirements for basic safety and essential performance EN 60601-1 -

IEC 60950-1 -

Information technology equipment - Safety - Part 1: General requirements EN 60950-1 -

IEC 61000-3-2 2014

Electromagnetic compatibility (EMC) - Part 3-2: Limits - Limits for harmonic current emissions (equipment input current - 16 A per phase) EN 61000-3-2 2014

IEC 61000-3-3 -

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 EN 61000-3-3 -

SIST EN 61204-3:2018
EN IEC 61204-3:2018 (E) 4 IEC 61000-3-12 -

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 EN 61000-3-12 -

IEC 61000-4-2 -

Electromagnetic compatibility (EMC) - Part 4-2: Testing and measurement techniques - Electrostatic discharge immunity test EN 61000-4-2 -

IEC 61000-4-3 -

Electromagnetic compatibility (EMC) - Part 4-3: Testing and measurement techniques - Radiated, radio-frequency, electromagnetic field immunity test - -

IEC 61000-4-4 -

Electromagnetic compatibility (EMC) -- Part 4-4: Testing and measurement techniques - Electrical fast transient/burst immunity test EN 61000-4-4 -

IEC 61000-4-5 -

Electromagnetic compatibility (EMC) - Part 4-5: Testing and measurement techniques - Surge immunity test EN 61000-4-5 -

IEC 61000-4-6 -

Electromagnetic compatibility (EMC) - Part 4-6: Testing and measurement techniques - Immunity to conducted disturbances, induced by radio-frequency fields EN 61000-4-6 -

IEC 61000-4-8 -

Electromagnetic compatibility (EMC) -- Part 4-8: Testing and measurement techniques - Power frequency magnetic field immunity test EN 61000-4-8 -

IEC 61000-4-11 -

Electromagnetic compatibility (EMC) -- Part 4-11: Testing and measurement techniques - Voltage dips, short interruptions and voltage variations immunity tests EN 61000-4-11 -

IEC 61000-6-1 -

Electromagnetic compatibility (EMC) - Part 6-1: Generic standards - Immunity standard for residential, commercial and light-industrial environments EN 61000-6-1 -

IEC 61000-6-2 -

Electromagnetic compatibility (EMC) - Part 6-2: Generic standards - Immunity standard for industrial environments EN 61000-6-2 -

IEC 61000-6-3 -

Electromagnetic compatibility (EMC) -- Part 6-3: Generic standards - Emission standard for residential, commercial and light-industrial environments EN 61000-6-3 -

IEC 61000-6-4 -

Electromagnetic compatibility (EMC) – Part 6-4: Generic standards – Emission standard for industrial environments EN IEC 61000-6-4 -

IEC 61010-1 -

Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 1: General requirements EN 61010-1 -

IEC 62368-1 -

Audio/video, information and communication technology equipment - Part 1: Safety requirements EN 62368-1 -

SIST EN 61204-3:2018
EN IEC 61204-3:2018 (E) 5 CISPR 11 -

Industrial, scientific and medical equipment - Radio-frequency disturbance characteristics - Limits and methods of measurement EN 55011 -

CISPR 16-1 series

Specification for radio disturbance and immunity measuring apparatus and methods - Part 1-1: Radio disturbance and immunity measuring apparatus - Measuring apparatus EN 55016-1 series

CISPR 16-1-2 2014

Specification for radio disturbance and immunity measuring apparatus and methods - Part 1-2: Radio disturbance and immunity measuring apparatus - Coupling devices for conducted disturbance measurements EN 55016-1-2 2014

CISPR 16-1-3 -

Specification for radio disturbance and immunity measuring apparatus and methods -- Part 1-3: Radio disturbance and immunity measuring apparatus - Ancillary equipment - Disturbance power EN 55016-1-3 -

CISPR 16-2-1 2014

Specification for radio disturbance and immunity measuring apparatus and methods - Part 2-1: Methods of measurement of disturbances and immunity - Conducted disturbance measurements EN 55016-2-1 2014

CISPR 16-2-2 -

Specification for radio disturbance and immunity measuring apparatus and methods -- Part 2-2: Methods of measurement of disturbances and immunity - Measurement of disturbance power EN 55016-2-2 -

CISPR 16-2-3 -

Specification for radio disturbance and immunity measuring apparatus and methods - Part 2-3: Methods of measurement of disturbances and immunity - Radiated disturbance measurements EN 55016-2-3 -

SIST EN 61204-3:2018
SIST EN 61204-3:2018

IEC 61204-3 Edition 3.0 2016-10 INTERNATIONAL STANDARD NORME INTERNATIONALE Low-voltage switch mode power supplies –

Part 3: Electromagnetic compatibility (EMC)
Alimentations à découpage basse tension –
Partie 3: Compatibilité électromagnétique (CEM)

INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE

ICS 29.200; 33.100
ISBN 978-2-8322-3689-5
® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale ®

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé. SIST EN 61204-3:2018

– 2 – IEC 61204-3:2016 © IEC 2016 CONTENTS FOREWORD ........................................................................................................................... 4 1 Scope and object ............................................................................................................. 6 1.1 Scope ..................................................................................................................... 6 1.1.1 Equipment covered by this document ............................................................... 6 1.1.2 Additional requirements ................................................................................... 6 1.1.3 Exclusions ....................................................................................................... 6 1.1.4 Types of power supply ..................................................................................... 7 1.1.5 Configurations and combinations of power supplies ......................................... 7 1.2 Object ..................................................................................................................... 8 2 Normative references ...................................................................................................... 8 3 Terms and definitions .................................................................................................... 10 4 Applicability of tests to different PSU technologies ........................................................ 13 5 General requirements and test conditions ...................................................................... 14 5.1 General requirements ........................................................................................... 14 5.2 Test conditions ..................................................................................................... 14 6 Emission requirements .................................................................................................. 14 6.1 General ................................................................................................................. 14 6.2 Low frequency phenomena (f

≤ 9 kHz; AC input only) .......................................... 14 6.2.1 Commutation notches .................................................................................... 14 6.2.2 Current harmonics and interharmonics .......................................................... 14 6.2.3 Voltage fluctuations and flicker ...................................................................... 15 6.3 High frequency conducted emission ...................................................................... 15 6.3.1 General ......................................................................................................... 15 6.3.2 High frequency conducted emission for input power ports .............................. 15 6.3.3 High frequency conducted emission for DC output power ports ...................... 16 6.4 High frequency radiated emission ......................................................................... 16 6.4.1 General ......................................................................................................... 16 6.4.2 Radiated disturbance measurements ............................................................. 16 6.4.3 Measurement of disturbance power ............................................................... 16 6.4.4 Restrictions for the application of interference power measurement ............... 17 7 Immunity requirements .................................................................................................. 18 7.1 Performance criteria ............................................................................................. 18 7.2 Basic immunity requirements, high frequency disturbances ................................... 18 7.2.1 General ......................................................................................................... 18 7.2.2 Immunity level for residential, commercial and light industrial environment ................................................................................................... 18 7.2.3 Immunity level for industrial environment ....................................................... 21 8 Power supply families aspects ....................................................................................... 24 9 Statistical aspects ......................................................................................................... 25 10 Safety aspects ............................................................................................................... 25 11 Test report ..................................................................................................................... 25 Annex A (normative)

Guidelines on the classification of PSUs ............................................. 26 A.1 General ................................................................................................................. 26 A.2 Stand alone power supplies .................................................................................. 26 A.3 Component power supplies ................................................................................... 26 SIST EN 61204-3:2018

IEC 61204-3:2016 © IEC 2016 – 3 – Annex B (informative)

Commutation notches ........................................................................ 28 Annex C (informative)

Calculation and simulation of the input current harmonics ................. 29 Annex D (informative)

Special considerations for DC/DC converters .................................... 30 D.1 General ................................................................................................................. 30 D.2 Emission ............................................................................................................... 30 D.3 Immunity ............................................................................................................... 30 Annex E (informative)

Critical frequency for high frequency power measurement ................. 33 Annex F (normative)

Guidelines on power supply families .................................................... 34 F.1 General ................................................................................................................. 34 F.2 Emission ............................................................................................................... 34 F.3 Immunity performance .......................................................................................... 34 Annex G (informative)

Summary of classification of environments and limits ........................ 36 G.1 Residential, commercial and light industrial environment ...................................... 36 G.2 Industrial environment ........................................................................................... 36 G.3 Special applications .............................................................................................. 36 G.4 Special considerations for DC/DC converters ........................................................ 37 Annex H (normative)

Emission limits .................................................................................... 38 Bibliography .......................................................................................................................... 40

Figure 1 – Examples of ports ................................................................................................ 11 Figure 2 – Test set-up for the measurement of disturbance power ........................................ 17

Table 1 – Criteria to prove the performance of a PSU against EM disturbances .................... 18 Table 2 – Immunity – Enclosure port –

Residential, commercial and light industrial environment .......................................................................................................................... 19 Table 3 – Immunity – Ports for signal lines and control lines Residential, commercial and light industrial environment ............................................................................................ 19 Table 4 – Immunity – DC input and output power ports Residential, commercial and light industrial environment ................................................................................................... 20 Table 5 – Immunity – AC input power ports –

Residential, commercial and light industrial environment ........................................................................................................... 21 Table 6 – Immunity – Enclosure port – Industrial environment ............................................... 22 Table 7 – Immunity – Ports for signal lines and control lines –

Industrial environment .......... 22 Table 8 – Immunity – DC input and output power ports – Industrial environment ................... 23 Table 9 – Immunity – AC input power ports – Industrial environment..................................... 24 Table A.1 – Classification of power supplies and the relevant EMC standards ...................... 27 Table D.1 – Immunity – DC input power ports – Input category a .......................................... 31 Table D.2 – Immunity – DC input power ports – Input category b .......................................... 31 Table D.3 – Immunity – Enclosure port – Input categories a and b ........................................ 32 Table H.1 – Limits of mains terminal disturbance voltage

(AC input port) ............................. 38 Table H.2 – Limits of mains terminal disturbance voltage

(DC input and DC output power port) ........................................................................................................................... 38 Table H.3 – Limits for electromagnetic radiation/interference power disturbance

(all field strength limits refer to quasi-peak measurements) ........................................................ 39 Table H.4 – Disturbance power limits for the frequency range 30 MHz to 300 MHz ............... 39

SIST EN 61204-3:2018

– 4 – IEC 61204-3:2016 © IEC 2016 INTERNATIONAL ELECTROTECHNICAL COMMISSION ____________

LOW-VOLTAGE SWITCH MODE POWER SUPPLIES –
Part 3: Electromagnetic compatibility (EMC)

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 itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certification bodies. 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 61204-3 has been prepared by subcommittee 22E: Stabilized power supplies, of IEC technical committee 22: Power electronic systems and equipment. IEC 61204-3 has the status of a product family standard. This third edition cancels and replaces the second edition published in 2011. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) the title has been changed by deleting the wording "DC output-" from the title and adding "switch mode" in the title; b) changes in the scope: 1.1.1 Equipment covered by this document; c) update of the normative references to the latest editions or dated references; SIST EN 61204-3:2018

IEC 61204-3:2016 © IEC 2016 – 5 – d) change of wording or/and notes regarding the requirements of CENELEC Guide 24 and IEC Guide 107; e) revision of the emission limits to align with the latest editions of the applicable normative references; f) revision of the immunity requirements to align with the latest editions of the applicable normative references; g) correction of typographical errors. The text of this standard is based on the following documents: FDIS Report on voting 22E/174/FDIS 22E/176/RVD

Full information on the voting for the approval of this document 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. A list of all parts of IEC 61204 series, under the general title Low-voltage power supplies, d.c. output, can be found on the IEC website. Future standards in this series will carry the new general title as cited above. Titles of existing standards in this series will be updated at the time of the next edition. The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to the specific publication. At this date, the publication will be

• reconfirmed, • withdrawn, • replaced by a revised edition, or • amended.
SIST EN 61204-3:2018
– 6 – IEC 61204-3:2016 © IEC 2016 LOW-VOLTAGE SWITCH MODE POWER SUPPLIES –
Part 3: Electromagnetic compatibility (EMC)

1 Scope and object 1.1 Scope 1.1.1 Equipment covered by this document This part of IEC 61204 specifies the electromagnetic compatibility (EMC) requirements for switch mode power supply (SMPS) units supplied by source voltages up to 1 000 V AC or 1 500 V DC providing AC and/or DC output(s), except inverter output(s) establishing AC mains (see exceptions under 1.1.3.) NOTE 1 This document by definition covers DC/DC converters. NOTE 2 Power supplies can provide accessory AC mains socket outlets, when such outputs are supplied from the AC mains. NOTE 3 Ringing generators used in telecoms applications are covered by this document. This product standard covers both stand alone and component power supply (PSU) units as defined in this document. It covers PSU units for use in or with IT equipment normally covered by IEC 60950-1 and/or IEC 62368-1; PSU units for use in or with measurement, control and laboratory equipment normally covered by IEC 61010-1; PSU units for use in or with medical equipment – normally covered by IEC 60601-1; PSU units for use in or with audio, video and similar electronic apparatus – normally covered by IEC 60065 and/or IEC 62368-1. It also covers DC power and distribution equipment and DC/DC converters. Where no standard exist, use of this document for other applications is not precluded. 1.1.2 Additional requirements Requirements additional to those specified in this document may be necessary for • PSUs intended for operation in special environments (for example, extremes of temperature; excessive dust, moisture or vibration; flammable gases; and corrosive or explosive atmospheres); • PSUs intended to be used in vehicles, on board ships or aircraft, or in tropical countries;

• PSUs intended for use where ingress of water is possible. NOTE Attention is drawn to the fact that authorities in some countries impose additional requirements for health, environmental and similar reasons. 1.1.3 Exclusions This document does not apply to • motor-generator sets;

• uninterruptible power supplies (UPS) to IEC 62040-1; • PSUs covered by IEC 61558-1 (i.e. power supply units incorporating safety isolating transformers providing SELV or PELV output(s) in accordance with IEC 60364-4-41) and PSUs for use with household and other consumer products, except those covered by IEC 60065 and IEC 60950-1 and/or IEC 62368-1; • transformers covered by IEC 61558-1; SIST EN 61204-3:2018

IEC 61204-3:2016 © IEC 2016 – 7 – • step-down converters covered by IEC 60146-1-1; • PSUs and converters intended for DC supplied bulb lamps, halogen lamps or LED lamps covered by CISPR 15.

1.1.4 Types of power supply
Two types of power supplies are covered by this document:
a) stand alone (or end-product) power supplies

Power supplies intended for free-standing operation (individual apparatus). This par

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