Transformers, power supplies, reactors and similar products - EMC requirements

IEC 62041: 2017 is applicable to transformers, reactors and power supply units covered by the IEC 61558 series of standards. This document deals with the electromagnetic compatibility requirements for emission and immunity within the frequency range 0 Hz to 400 GHz. No tests need to be performed at frequencies where no requirements are specified.
This third edition cancels and replaces the second edition published in 2010. It constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
the inclusion of a clause on tests in series production;
the inclusion of a new clause on measurement uncertainly, and
the status of a harmonized standard for this third edition.  It has the status of a product family EMC standard in accordance with IEC Guide 107:2009,
Electromagnetic compatibility – Guide to the drafting of electromagnetic compatibility publications.

Transformateurs, alimentations, bobines d’inductance et produits analogues - Exigences CEM

L'IEC 62041:2017 s’applique aux transformateurs, bobines d’inductance et aux blocs d’alimentation couverts par la série de normes IEC 61558. Le présent document traite des exigences de compatibilité électromagnétique pour l’émission et l’immunité dans la bande de fréquences comprise entre 0 Hz et 400 GHz. Aucun essai n’est nécessaire aux fréquences pour lesquelles aucune exigence n’est spécifiée. Cette troisième édition annule et remplace la deuxième édition parue en 2010. Elle constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l’édition précédente:
ajout d’un article sur les essais de production en série;
ajout d’un nouvel article sur l’incertitude des mesures, et
statut de norme harmonisée pour cette troisième édition.  Elle a le statut d’une norme CEM de famille de produits conformément au Guide IEC 107:2009,
Compatibilité électromagnétique – Guide pour la rédaction des publications sur la compatibilité électromagnétique.
La présente version bilingue (2018-01) correspond à la version anglaise monolingue publiée en 2017-08. La version française de cette norme n'a pas été soumise au vote.

General Information

Status
Published
Publication Date
09-Aug-2017
Current Stage
PPUB - Publication issued
Start Date
10-Aug-2017
Completion Date
10-Aug-2017
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IEC 62041
Edition 3.0 2017-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Transformers, power supplies, reactors and similar products –
EMC requirements
Transformateurs, alimentations, bobines d’inductance et produits analogues –
Exigences CEM
IEC 62041:2017-08(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 62041
Edition 3.0 2017-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Transformers, power supplies, reactors and similar products –
EMC requirements
Transformateurs, alimentations, bobines d’inductance et produits analogues –
Exigences CEM
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.180; 33.100.01 ISBN 978-2-8322-5231-4

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: 3 ----------------------
– 2 – IEC 62041:2017 © IEC 2017
CONTENTS

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

1 Scope .............................................................................................................................. 6

2 Normative references ...................................................................................................... 6

3 Terms, definitions and abbreviations ............................................................................... 8

3.1 Terms and definitions .............................................................................................. 8

3.2 Abbreviations .......................................................................................................... 9

4 General considerations .................................................................................................. 10

4.1 Categories ............................................................................................................ 10

4.2 Measurement uncertainty ...................................................................................... 10

4.3 Routine tests (production tests) ............................................................................ 11

5 Product documentation .................................................................................................. 11

6 Applicability ................................................................................................................... 11

7 Test equipment .............................................................................................................. 12

8 Conditions during testing ............................................................................................... 12

9 Measurement procedures .............................................................................................. 12

9.1 Emission ............................................................................................................... 12

9.2 Immunity ............................................................................................................... 12

10 Performance criteria ...................................................................................................... 13

11 Requirements ................................................................................................................ 14

11.1 Immunity ............................................................................................................... 14

11.2 Emission ............................................................................................................... 14

Annex A (informative) Tables for immunity and emission limits ............................................ 16

Bibliography .......................................................................................................................... 30

Figure 1 – Ports covered by Table A.1 to Table A.16 .............................................................. 9

Table 1 – Additional acceptance limit for statistical determination ......................................... 10

Table 2 – Values of k according to CISPR TR 16-4-3:2004, Table C.1 ................................ 11

Table 3 – Uncertainties for emission tests ............................................................................. 11

Table A.1 – Immunity requirements for enclosure ports for equipment intended for use

in residential, commercial and light-industrial environments according to IEC 61000-6-1 ...... 16

Table A.2 – Immunity requirements for enclosure ports for equipment intended for use

in industrial environments according to IEC 61000-6-2 .......................................................... 17

Table A.3 – Immunity requirements for signal ports for equipment intended for use in

residential, commercial and light-industrial environments according to IEC 61000-6-1 .......... 17

Table A.4 – Immunity requirements for signal ports for equipment intended for use in

industrial environments according to IEC 61000-6-2 ............................................................. 18

Table A.5 – Immunity requirements at input and output DC power ports for equipment

intended for use in residential, commercial and light-industrial environments according

to IEC 61000-6-1 .................................................................................................................. 19

Table A.6 – Immunity requirements at input and output DC power ports for equipment

intended for use in industrial environments according to IEC 61000-6-2................................ 20

Table A.7 – Immunity requirements at input and output AC power ports for equipment

intended for use in residential, commercial and light-industrial environments according

to IEC 61000-6-1 .................................................................................................................. 21

---------------------- Page: 4 ----------------------
IEC 62041:2017 © IEC 2017 – 3 –

Table A.8 – Immunity requirements at input and output AC power ports for equipment

intended for use in industrial environments according to IEC 61000-6-2................................ 22

Table A.9 – Requirements for radiated emissions for equipment intended for use in

residential, commercial and light-industrial environments according to IEC 61000-6-3 .......... 23

Table A.10 – Requirements for radiated emissions ports for equipment intended for

use in industrial environments according to IEC 61000-6-4 ................................................... 25

Table A.11 – Requirements for conducted emissions from AC mains power ports for

equipment intended for use in residential, commercial and light-industrial environments

according to IEC 61000-6-3 .................................................................................................. 27

Table A.12 – Requirements for conducted emissions from AC mains power ports

according to IEC 61000-6-4 .................................................................................................. 27

Table A.13 – Requirements for conducted emissions from AC mains power ports for

equipment intended for use in residential, commercial and light-industrial environments

according to IEC 61000-6-3 .................................................................................................. 28

Table A.14 – Requirements for conducted emissions from AC mains power ports for

equipment intended for use in industrial environments according to IEC 61000-6-4 .............. 28

Table A.15 – Requirements for conducted emissions from signal ports for equipment

intended for use in residential, commercial and light-industrial environments according

to IEC 61000-6-3 .................................................................................................................. 29

Table A.16 – Requirements for conducted emissions from signal ports for equipment

intended for use in industrial environments according to IEC 61000-6-4................................ 29

---------------------- Page: 5 ----------------------
– 4 – IEC 62041:2017 © IEC 2017
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
TRANSFORMERS, POWER SUPPLIES, REACTORS
AND SIMILAR PRODUCTS –
EMC requirements
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 62041 has been prepared by Technical Committee 96:
Transformers, reactors, power supply units and combinations thereof.

This third edition cancels and replaces the second edition published in 2010. It constitutes a

technical revision.

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

edition:
• the inclusion of a clause on tests in series production;
• the inclusion of a new clause on measurement uncertainly, and
• the status of a harmonized standard for this third edition.

It has the status of a product family EMC standard in accordance with IEC Guide 107:2009,

---------------------- Page: 6 ----------------------
IEC 62041:2017 © IEC 2017 – 5 –

Electromagnetic compatibility – Guide to the drafting of electromagnetic compatibility

publications.

This bilingual version (2018-01) corresponds to the monolingual English version, published in

2017-08.
The text of this International Standard is based on the following documents:
FDIS Report on voting
96/465/FDIS 96/467/RVD

Full information on the voting for the approval of this International Standard can be found in

the report on voting indicated in the above table.
The French version of this standard has not been voted upon.

This document has been drafted in accordance with the ISO/IEC Directives, Part 2.

This standard is to be used in conjunction with the IEC 61558 series.
In this standard, the following print types are used:
• requirements proper: in roman type;
• test specifications: in italic type;
• explanatory matter: in smaller roman type.

In the text of this publication, the words in bold are defined in Clause 3 of this document and

in the IEC 61558 series.

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

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

the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

NOTE The attention of the National Committees is drawn to the fact that equipment manufacturers and testing

organizations may need a transitional period following publication of a new, amended or revised IEC publication in

which to make products in accordance with the new requirements and to equip themselves for conducting new or

revised tests.

It is the recommendation of the committee that the content of this publication be adopted for implementation

nationally not earlier than 12 months or not later than 3 years from the date of publication.

The transitional period is no longer than 3 years after the publication of this standard.

---------------------- Page: 7 ----------------------
– 6 – IEC 62041:2017 © IEC 2017
TRANSFORMERS, POWER SUPPLIES, REACTORS
AND SIMILAR PRODUCTS –
EMC requirements
1 Scope

This document is applicable to transformers, reactors and power supply units covered by the

IEC 61558 series of standards. This document deals with the electromagnetic compatibility

requirements for emission and immunity within the frequency range 0 Hz to 400 GHz. No tests

need to be performed at frequencies where no requirements are specified.

For associated transformers, associated reactors and associated power supply units either

supplied with or incorporated into an appliance or equipment, the relevant EMC standard for

that appliance or equipment applies.

This document covers normal operating conditions only. Other operations of the transformers,

reactors and power supply units (e.g. simulated faults in the electric circuitry for testing

purposes or functional safety due to the effects of the electromagnetic phenomena, or

evaluation of human being for exposure to electromagnetic fields (EMF)) have not been taken

into consideration in this document.

Requirements are specified for each port considered. If requirements are different, the most

severe takes precedence.

This document may also be used as a guide to test transformers, reactors and power supply

units separately before these are incorporated into an appliance or equipment.

NOTE When EUT (Equipment under test) is used, it covers transformers, reactors and power supply units

where applicable.
This document does not apply to:
• uninterruptible power supplies (UPS) covered by IEC 62040 (all parts);
• power supply units covered by IEC 61204,

(i.e. DC-DC converters, DC power and distribution equipment and power supply units for

use in applications covered by IEC 60950-1, IEC 61010-1, IEC 60601-1 and IEC 60065);

• power supplies and converters for use with or in products covered by IEC 61347 (all

parts).
2 Normative references

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.

IEC 60050-161, International Electrotechnical Vocabulary – Chapter 161: Electromagnetic

compatibility

IEC 61000-3-2, Electromagnetic compatibility (EMC) – Part 3-2: Limits – Limits for harmonic

current emissions (equipment input current ≤ 16 A per phase)
---------------------- Page: 8 ----------------------
IEC 62041:2017 © IEC 2017 – 7 –

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

IEC 61000-3-11, Electromagnetic compatibility (EMC) – Part 3-11: Limits – Limitation of

voltage changes, voltage fluctuations and flicker in public low-voltage supply systems –

Equipment with rated current ≤ 75 A and subject to conditional connection

IEC 61000-3-12, 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

IEC 61000-4-2, Electromagnetic compatibility (EMC) – Part 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 4-4: Testing and measurement

techniques – Electrical fast transient/burst immunity test

IEC 61000-4-5, Electromagnetic compatibility (EMC) – Part 4-5: Testing and measurement

techniques – Surge immunity test

IEC 61000-4-6, Electromagnetic compatibility (EMC) – Part 4-6: Testing and measurement

techniques – Immunity to conducted disturbances, induced by radio-frequency fields

IEC 61000-4-11, Electromagnetic compatibility (EMC) – Part 4-11: Testing and measurement

techniques – Voltage dips, short interruptions and voltage variations immunity tests

IEC 61000-4-34, Electromagnetic compatibility (EMC) – Part 4-34: Testing and measurement

techniques – Voltage dips, short interruptions and voltage variations immunity tests for

equipment with input current more than 16 A per phase

IEC 61000-6-1, Electromagnetic compatibility (EMC) – Part 6-1: Generic standards –

Immunity standard for residential, commercial and light-industrial environments

IEC 61000-6-2, Electromagnetic compatibility (EMC) – Part 6-2: Generic standards –

Immunity standard for industrial environments

IEC 61000-6-3, Electromagnetic compatibility (EMC) – Part 6-3: Generic standards –

Emission standard for residential, commercial and light-industrial environments

IEC 61000-6-4, Electromagnetic compatibility (EMC) – Part 6-4: Generic standards –

Emission standard for industrial environments

IEC 61558 (all parts), Safety of power transformers, power supplies, reactors and similar

products

CISPR 14-1:2016, Electromagnetic compatibility – Requirements for household appliances,

electric tools and similar apparatus – Part 1: Emission

CISPR 16-1-1:2015, Specification for radio disturbance and immunity measuring apparatus

and methods – Part 1-1: Radio disturbance and immunity measuring apparatus – Measuring

apparatus
---------------------- Page: 9 ----------------------
– 8 – IEC 62041:2017 © IEC 2017

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

CISPR 16-1-4:2010, Specification for radio disturbance and immunity measuring apparatus

and methods – Part 1-4: Radio disturbance and immunity measuring apparatus – Antennas

and test sites for radiated disturbance measurements
CISPR 16-1-4:2010/AMD1:2012

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

CISPR 16-2-3:2016, Specification for radio disturbance and immunity measuring apparatus

and methods – Part 2-3: Methods of measurement of disturbances and immunity – Radiated

disturbance measurements

CISPR 16-4-2, Specification for radio disturbance and immunity measuring apparatus and

methods – Part 4-2: Uncertainties, statistics and limit modelling – Measurement
instrumentation uncertainty
CISPR 32:2015, Electromagnetic compatibility of multimedia equipment – Emission
requirements
3 Terms, definitions and abbreviations
3.1 Terms and definitions

For the purposes of this document, the terms and definitions given in IEC 60050-161 and the

following apply.

ISO and IEC maintain terminological databases for use in standardization at the following

addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1.1
equipment under test
transformers, reactors and power supply units where applicable
3.1.2
port

particular interface of the specified EUT with the external electromagnetic environment.

Note 1 to entry: Examples of ports of interest are shown in Figure 1. The enclosure port is the physical boundary

of the equipment (e.g. enclosure). The enclosure port provides for radiated and electrostatic discharge (ESD)

energy transfer, whereas the other ports provide for conducted energy transfer, either by direct injection or by

induction.
Note 2 to entry: In some cases, different ports may be combined.
---------------------- Page: 10 ----------------------
IEC 62041:2017 © IEC 2017 – 9 –
Enclosure port
Signal port AC power port
EUT
DC power port
IEC
Figure 1 – Ports covered by Table A.1 to Table A.16
3.1.3
enclosure port

physical boundary of the EUT which electromagnetic fields may radiate through or impinge on

3.1.4
cable port
port at which a conductor or a cable is connected to the EUT
Note 1 to entry: Examples are signal, control and power ports.
3.1.5
signal port

port at which a conductor or cable intended to carry signals is connected to the EUT

Note 1 to entry: Examples are analogue inputs, outputs and control lines, data busses, communication networks,

etc.
3.1.6
power port

port at which a conductor or cable carrying the primary electrical power needed for the

operation (functioning) of an EUT is connected
3.1.7
public mains network

electricity lines to which all categories of consumers have access and which are operated by

a supply or distribution undertaking for the purpose of supplying electrical energy

3.1.8
low voltage
voltage having a value below a conventionally adopted limit

Note 1 to entry: For the distribution of AC electric power, the upper limit is generally accepted to be 1 000 V.

[SOURCE: IEC 60050-151:2001, 151-15-03]
3.2 Abbreviations
AC Alternating Current
AM Amplitude Modulation
DC Direct Current
EUT Equipment Under Test
FAR Fully Anechoic Room
ISN Impedance Stabilization Network
LV Low Voltage
OATS Open Area Test Site
---------------------- Page: 11 ----------------------
– 10 – IEC 62041:2017 © IEC 2017
SAC Semi Anechoic Chamber
TEM Transverse Electromagnetic Mode
4 General considerations
4.1 Categories

EUT are classified according to the incorporation of components and electronic circuits as

follows:

• category 0: EUT with or without passive protection components and without electronic

circuits,
• category 1: EUT with passive components, and without electronic ci
...

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