EN IEC 61000-6-4:2019

SLOVENSKI STANDARD
01-november-2019
Nadomešča:
SIST EN 61000-6-4:2007
SIST EN 61000-6-4:2007/A1:2011
Elektromagnetna združljivost (EMC) - 6-4. del: Osnovni (generični) standardi -
Standard oddajanja motenj v industrijskih okoljih
Electromagnetic compatibility (EMC) - Part 6-4: Generic standards - Emission standard
for industrial environments
Elektromagnetische Verträglichkeit (EMV) - Teil 6-4: Fachgrundnormen -
Störaussendung für Industriebereiche
Compatibilité électromagnétique (CEM) - Partie 6-4: Normes génériques - Norme sur
l'émission pour les environnements industriels
Ta slovenski standard je istoveten z: EN IEC 61000-6-4:2019
ICS:
33.100.10 Emisija Emission
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 61000-6-4

NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2019
ICS 33.100.10 Supersedes EN 61000-6-4:2007
English Version
Electromagnetic compatibility (EMC) - Part 6-4: Generic
standards - Emission standard for industrial environments
(IEC 61000-6-4:2018)
Compatibilité électromagnétique (CEM) - Partie 6-4: Elektromagnetische Verträglichkeit (EMV) - Teil 6-4:
Normes génériques - Norme sur l'émission pour les Fachgrundnormen - Störaussendung für Industriebereiche
environnements industriels (IEC 61000-6-4:2018)
(IEC 61000-6-4:2018)
This European Standard was approved by CENELEC on 2018-03-14. 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, 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 61000-6-4:2019 E

European foreword
The text of document CIS/H/339A/FDIS, future edition 3 of IEC 61000-6-4, prepared by IEC/SC H of
CISPR "Limits for the protection of radio services" was submitted to the IEC-CENELEC parallel vote
and approved by CENELEC as EN IEC 61000-6-4:2019.

The following dates are fixed:
(dop) 2020-03-20
• latest date by which the document has to be
implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2022-09-20
standards conflicting with the
document have to be withdrawn
This document supersedes EN 61000-6-4:2007 and EN 61000-6-4:2007/A1:2011.

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, and supports essential requirements of EU Directive(s).

For the relationship with EU Directive(s) see informative Annex ZZ, which is an integral part of this
document.
Endorsement notice
The text of the International Standard IEC 61000-6-4:2018 was approved by CENELEC as a
European Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:

IEC 61000-6-1 NOTE Harmonized as EN 61000-6-1.
IEC 61000-6-3 NOTE Harmonized as EN 61000-6-3.
IEC 61158 (series) NOTE Harmonized as EN 61158 (series).
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 60050-161 1990 International Electrotechnical Vocabulary - -
(IEV) -- Chapter 161: Electromagnetic
compatibility
IEC 61000-4-20 2010 Electromagnetic compatibility (EMC) -- Part EN 61000-4-20 2010
4-20: Testing and measurement
techniques - Emission and immunity
testing in transverse electromagnetic
(TEM) waveguides
CISPR 11 (mod) 2015 Industrial, scientific and medical equipment EN 55011 2016
- Radio-frequency disturbance
characteristics - Limits and methods of
measurement
+ A1 2016  + A1 2017
CISPR 14-1 2016 Electromagnetic compatibility - EN 55014-1 2017
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
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
Dated as no equivalent European Standard exists.
Publication Year Title EN/HD Year
CISPR 16-1-4 2010 Specification for radio disturbance and EN 55016-1-4 2010
immunity measuring apparatus and
methods -- Part 1-4: Radio disturbance and
immunity measuring apparatus - Antennas
and test sites for radiated disturbance
measurements
+ A1 2012  + A1 2012
+ A2 2017  + A2 2017
CISPR 16-1-6 2014 Specification for radio disturbance and EN 55016-1-6 2015
immunity measuring apparatus and
methods -- Part 1-6: Radio disturbance and
immunity measuring apparatus - EMC-
antenna calibration
+ A1 2017  + A1 2017
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
+ A1 2017  + A1 2017
CISPR 16-2-3 2016 Specification for radio disturbance and EN 55016-2-3 2017
immunity measuring apparatus and
methods - Part 2-3: Methods of
measurement of disturbances and
immunity - Radiated disturbance
measurements
CISPR 16-4-2 2011 Specification for radio disturbance and EN 55016-4-2 2011
immunity measuring apparatus and
methods -- Part 4-2: Uncertainties,
statistics and limit modelling -
Measurement instrumentation uncertainty
+ A1 2014  + A1 2014
CISPR 32 2015 Electromagnetic compatibility of multimedia EN 55032 2015
equipment - Emission requirements

Annex ZZ
(informative)
Relationship between this European standard and the essential requirements
of Directive 2014/30/EU [2014 OJ L96] aimed to be covered

This European standard has been prepared under the European Commission standardisation request
C(2016) 7641 final of 30.11.2016 , ('M/552'), as regards harmonised standards in support of Directive
2014/30/EU relating to electromagnetic compatibility, to provide one voluntary means of conforming to
essential requirements of Directive 2014/30/EU of the European Parliament and of the Council of 26
February 2014 on the harmonisation of the laws of the Member States relating to electromagnetic
compatibility [2014 OJ L96].
Once this standard is cited in the Official Journal of the European Union under that Directive,
compliance with the normative clauses of this standard given in Table ZZ.1 confers, within the limits of
the scope of this standard, a presumption of conformity with the corresponding essential requirements
of that Directive, and associated EFTA regulations.

Table ZZ.1 – Correspondence between this European standard and the
Essential Requirements set out in Directive 2014/30/EU [2014 OJ L96]

Essential requirements of Clause(s) / sub-clause(s)
Remarks / Notes
Directive 2014/30/EU of this EN
Annex I. 1(a) (electromagnetic 9 Emission requirements The limits apply in combination
disturbances) with the relevant measuring
method and operating
conditions.
WARNING 1: Presumption of conformity stays valid only as long as a reference to this European
standard is maintained in the list published in the Official Journal of the European Union. Users of this
standard should consult frequently the latest list published in the Official Journal of the European
Union.
WARNING 2: Other Union legislation may be applicable to the product(s) falling within the scope of
this standard.
COMMISSION IMPLEMENTING DECISION C(2016) 7641 final of 30.11.2016 on a standardisation request to the
European Committee for Standardisation, to the European Committee for Electrotechnical Standardisation and to the
European Telecommunications Standards Institute as regards harmonised standards in support of Directive 2014/30/EU
of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member
States relating to electromagnetic compatibility.
IEC 61000-6-4 ®
Edition 3.0 2018-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
BASIC EMC PUBLICATION
PUBLICATION FONDAMENTALE EN CEM

Electromagnetic compatibility (EMC) –

Part 6-4: Generic standards – Emission standard for industrial environments

Compatibilité électromagnétique (CEM) –

Partie 6-4: Normes génériques – Norme sur l'émission pour les environnements

industriels
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.100.10 ISBN 978-2-8322-5371-7

– 2 – IEC 61000-6-4:2018 © IEC 2018
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms, definitions and abbreviated terms . 8
3.1 Terms and definitions . 8
3.2 Abbreviated terms . 10
4 Conditions during testing . 11
5 Product documentation . 12
6 Applicability . 12
7 Measurement uncertainty . 12
8 Compliance with this document . 12
9 Emission requirements . 13
Annex A (informative) Testing of DC powered systems . 17
Annex B (informative) Further information on measurements using a FAR . 19
B.1 General . 19
B.2 Analysis . 19
B.2.1 Theoretical analysis of simple radiators . 19
B.2.2 Limitations with the basic model . 20
B.2.3 Measurements on an EUT . 23
B.2.4 Derivation of limits . 24
B.3 Requirements . 24
Bibliography . 26

Figure 1 – Example of ports . 9
Figure B.1 – Geometrical optics model for OATS measurements . 19
Figure B.2 – Field attenuation between two half-wave dipoles above ground plane with
fixed transmit antenna height and variable receive antenna height . 20
Figure B.3 – Equivalent circuit diagram of a typical EUT . 21
Figure B.4 – 10 m distance, horizontal polarization, calculated differences for an
electrically short straight wire above the ground plane on an OATS compared with a
FAR (E – E ) . 21
OATS FAR
Figure B.5 – 10 m distance, vertical polarization, calculated differences for an
electrically short straight wire above the ground plane on an OATS compared with a
FAR (E – E ) . 22
OATS FAR
Figure B.6 – 3 m distance, horizontal polarization, calculated differences for an
electrically short straight wire above the ground plane on an OATS compared with a
FAR (E – E ) . 22
OATS FAR
Figure B.7 – 3 m distance, vertical polarization, calculated differences for an
electrically short straight wire above the ground plane on an OATS compared with a
FAR (E – E ) . 23
OATS FAR
Figure B.8 – Differences of the horizontal polarised emission of the small EUT with
mains lead in the 3 m FARs and on 10 m OATS . 24

Table 1 – Test arrangements of EUT . 11

IEC 61000-6-4:2018 © IEC 2018 – 3 –
Table 2 – Required highest frequency for radiated measurement . 14
Table 3 – Requirements for radiated emissions – enclosure port . 15
Table 4 – Requirements for conducted emissions – low voltage AC mains port . 16
Table 5 – Requirements for conducted emissions – wired network port . 16
Table A.1 – Proposed requirements for conducted emissions – DC power port . 17
Table A.2 – Conducted testing of DC powered equipment . 18
Table B.1 – Proposed requirements for radiated emissions, FAR . 25

– 4 – IEC 61000-6-4:2018 © IEC 2018
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTROMAGNETIC COMPATIBILITY (EMC) –

Part 6-4: Generic standards –
Emission standard for industrial environments

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 61000-6-4 has been prepared by CISPR subcommittee H: Limits
for the protection of radio services.
This third edition cancels and replaces the second edition published in 2006 and
Amendment 1:2010 This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) possible future requirements on DC ports;
b) possible future radiated polarity specific emission limits within a FAR;
c) the definition of which average detector is used for emission measurements at frequencies
above 1GHz and that results using a peak detector are acceptable for all measurements;
d) the definition of different EUT test arrangements.

IEC 61000-6-4:2018 © IEC 2018 – 5 –
The text of this International Standard is based on the following documents:
FDIS Report on voting
CIS/H/339A/FDIS CIS/H/350/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.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
It forms Part 6-4 of the IEC 61000 series of standards. It has the status of a basic EMC
publication in accordance with IEC Guide 107.
A list of all parts in the CISPR 61000 series, published under the general title Electromagnetic
compatibility, can be found on the IEC website.
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.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
– 6 – IEC 61000-6-4:2018 © IEC 2018
INTRODUCTION
IEC 61000 is published in separate parts according to the following structure:
Part 1: General
General considerations (introduction, fundamental principles)
Definitions, terminology
Part 2: Environment
Description of the environment
Classification of the environment
Compatibility levels
Part 3: Limits
Emission limits
Immunity limits (insofar as they do not fall under the responsibility of the product
committees)
Part 4: Testing and measurement techniques
Measurement techniques
Testing techniques
Part 5: Installation and mitigation guidelines
Installation guidelines
Mitigation methods and devices
Part 6: Generic standards
Part 9: Miscellaneous
Each part is further subdivided into several parts published either as International Standards
or technical reports/specifications, some of which have already been published as sections.
Others will be published with the part number followed by a dash and a second number
identifying the subdivision (example: IEC 61000-6-1).

IEC 61000-6-4:2018 © IEC 2018 – 7 –
ELECTROMAGNETIC COMPATIBILITY (EMC) –

Part 6-4: Generic standards –
Emission standard for industrial environments

1 Scope
This part of IEC 61000 for emission requirements applies to electrical and electronic
equipment intended for use within the environment existing at industrial (see 3.1.12) locations.
This document does not apply to equipment that fall within the scope of IEC 61000-6-3.
The environments encompassed by this document cover both indoor and outdoor locations.
Emission requirements in the frequency range 9 kHz to 400 GHz are covered in this document
and have been selected to provide an adequate level of protection of radio reception in the
defined electromagnetic environment. No measurement needs to be performed at frequencies
where no requirement is specified. These requirements are considered essential to provide an
adequate level of protection to radio services.
Not all disturbance phenomena have been included for testing purposes but only those
considered relevant for the equipment intended to operate within the environments included
within this document.
Requirements are specified for each port considered.
This generic EMC emission standard is to be used where no applicable product or product-
family EMC emission standard is available.
NOTE 1 Safety considerations are not covered by this document.
NOTE 2 In special cases, situations will arise where the levels specified in this document will not offer adequate
protection; for example where a sensitive receiver is used in close proximity to an equipment. In these instances,
special mitigation measures may have to be employed.
NOTE 3 Disturbances generated in fault conditions of equipment are not covered by this document.
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 61000-4-20:2010, Electromagnetic compatibility (EMC) – Part 4-20: Testing and
measurement techniques – Emission and immunity testing in transverse electromagnetic
(TEM) waveguide
CISPR 11:2015, Industrial, scientific and medical equipment – Radio-frequency disturbance
characteristics – Limits and methods of measurement
CISPR 11:2015/AMD1:2016
– 8 – IEC 61000-6-4:2018 © IEC 2018
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
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 16-1-4:2010/AMD2:2017
CISPR 16-1-6:2014, Specification for radio disturbance and immunity measuring apparatus
and methods – Part 1-6: Radio disturbance and immunity measuring apparatus – EMC
antenna calibration
CISPR 16-1-6:2014/AMD1:2017
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 16-2-1:2014/AMD1:2017
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 16-4-2:2011, Specification for radio disturbance and immunity measuring apparatus
and methods – Part 4-2: Uncertainties, statistics and limit modelling – Measurement
instrumentation uncertainty
CISPR 16-4-2:2011/AMD1:2014
CISPR 32:2015, Electromagnetic compatibility of multimedia equipment – Emission
requirements
3 Terms, definitions and abbreviated terms
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
port
physical interface of the specified equipment with the external electromagnetic environment
Note 1 to entry: See Figure 1.

IEC 61000-6-4:2018 © IEC 2018 – 9 –
EUT
Wired network port Low voltage AC mains port
Enclosure port
DC power port
IEC
Figure 1 – Example of ports
3.1.2
enclosure port
physical boundary of the equipment which electromagnetic fields may radiate through or
impinge on
3.1.3
cable port
port at which a conductor or a cable is connected to the equipment
Note 1 to entry: Examples are signal, wired network, control and power ports.
3.1.4
wired network port
point of connection for voice, data and signalling transfers intended to interconnect widely-
dispersed systems by direct connection to a single-user or multi-user communication network
Note 1 to entry: Examples of these include CATV, PSTN, ISDN, xDSL, LAN and similar networks.
Note 2 to entry: These ports may support screened or unscreened cables and may also carry AC or DC power
where this is an integral part of the telecommunication specification.
Note 3 to entry: A port generally intended for interconnection of components of a system under test (e.g. RS-
232, RS-485, field buses in the scope of IEC 61158, IEEE Standard 1284 (parallel printer), Universal Serial Bus
(USB), IEEE Standard 1394 (“Fire Wire”), etc.) and used in accordance with its functional specifications (e.g. for
the maximum length of cable connected to it), is not considered to be a wired network port.
Note 4 to entry: In previous editions of this document and many product standards, this port was defined as a
telecommunications or network port.
3.1.5
power port
port for the connection of the equipment to the primary electrical power supply
3.1.6
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
3.1.7
low voltage
LV
a set of voltage levels used for the distribution of electricity and whose upper limit is generally
accepted to be 1 000 V AC or 1 500 V DC
[SOURCE: IEC 60050-601:1985, 601-01-26, modified – addition of the words "or 1 500 V DC"]
3.1.8
DC distribution network
local supply network in the infrastructure of a site or building intended for use by one or more
different types of equipment and providing power independent of the public mains network

– 10 – IEC 61000-6-4:2018 © IEC 2018
Note 1 to entry: Connection to a remote local battery is not regarded as a DC distribution network, if such a link
comprises only power supply for a single piece of equipment.
3.1.9
low voltage AC mains port
port used to connect to the low voltage AC mains supply network to power the equipment
Note 1 to entry: Equipment with a DC power port is considered low voltage AC mains powered if it is powered
from an AC/DC power converter.
Note 2 to entry: The low voltage AC mains supply could be public or non-public.
3.1.10
highest internal frequency F
x
highest fundamental frequency generated or used within the EUT, or the highest frequency at
which it operates
3.1.11
small equipment
equipment, either positioned on a table top or standing on the floor which, including its cables
fits in a cylindrical test volume of 1,2 m in diameter and 1,5 m above the ground plane
Note 1 to entry: These dimensions are currently under discussion in CISPR.
3.1.12
industrial location
location characterized by a separate power network, supplied from a high- or medium-voltage
transformer, dedicated for the supply of the installation
Note 1 to entry: Industrial locations can generally be described by the existence of an installation with one or
more of the following characteristics:
• items of equipment installed and connected together and working simultaneously;
• significant amount of electrical power generated, transmitted and/or consumed;
• frequent switching of heavy inductive or capacitive loads;
• high currents and associated magnetic fields;
• presence of industrial, high power scientific and medical (ISM) equipment (for example, welding machines).
The electromagnetic environment at an industrial location is predominantly produced by the equipment and
installation present at the location. There are types of industrial locations where some of the electromagnetic
phenomena appear in a more severe degree than in other installations.
Example locations include metalworking, pulp and paper, chemical plants, car production, farm building, high-
voltage areas of airports
Note 2 to entry: The connection between location and electromagnetic environment is given in 3.1.13.
3.1.13
electromagnetic environment
totality of electromagnetic phenomena existing at a given location
Note 1 to entry: In general, the electromagnetic environment is time-dependent and its description may need a
statistical approach.
Note 2 to entry: It is very important not to confuse the electromagnetic environment and the location itself.
[SOURCE IEC 60050-161:1990, 161-01-01, modified – Note 2 to entry has been added.]
3.2 Abbreviated terms
AAN Asymmetric Artificial Network
AC Alternating Current
AMN Artificial Mains Network
IEC 61000-6-4:2018 © IEC 2018 – 11 –
CATV Cable TV network
DC Direct Current
DSL Digital Subscriber Line
EUT Equipment Under Test
FAR Fully Anechoic Room
FSOATS Free Space Open Area Test Site
ISDN Integrated Services Digital Network
ITE Information Technology Equipment
LAN Local Area Network
MME Multi Media Equipment
OATS Open Area Test Site
PSTN Public Switched Telephone Network
SAC Semi Anechoic Chamber
TEM Transverse Electromagnetic Mode
USB Universal Serial Bus
xDSL Generic term for all types of DSL technology
4 Conditions during testing
The EUT shall be tested in the operating mode producing the largest emission in the frequency
band being measured, consistent with normal applications. The configuration of the test
sample shall be varied to achieve maximum emission consistent with typical applications and
installation practice. Pre-testing may be used to reduce test time.
If the EUT is part of a system, or can be connected to associated equipment, the EUT shall be
tested while connected to the minimum representative configuration of associated equipment
necessary to exercise the ports in a similar manner to that described in CISPR 11 or
CISPR 32.
The EUT shall be arranged in accordance with the requirements of Table 1.
Table 1 – Test arrangements of EUT
Intended operational Test arrangement Remarks
arrangement(s) of EUT
Table-top only Table-top
Floor-standing only Floor-standing
Can be floor-standing or table-top Table-top
Rack mounted In a rack or table-top
Other, for example wall mounted, Table-top With normal orientation
ceiling mounted, handheld, body
If the equipment is designed to be
worn
mounted on a ceiling, the downward-
facing portion of the EUT may be
oriented facing upward.
If a physical hazard would be caused by testing the device on a table-top, then it can be tested as floor standing
and the test report shall document the decision and justification.

In cases where a manufacturer's specification requires external filtering and/or shielding
devices or measures that are clearly specified in the user's manual, the test requirements of
this document shall be applied with the specified devices or measures in place.

– 12 – IEC 61000-6-4:2018 © IEC 2018
The configuration and mode of operation during the measurements shall be precisely noted in
the test report. If the EUT has a large number of similar ports or ports with many similar
connections, a sufficient number shall be selected to simulate actual operating conditions and
to ensure that all the different types of termination are covered.
The measurements shall be carried out at one single set of parameters within the operating
ranges of temperature, humidity and atmospheric pressure specified for the product and at the
rated supply voltage, unless otherwise indicated in the basic standard. The relevant
conditions shall be recorded in the test report.
Where applicable, additional information on EUT configuration can be found in CISPR 16-2-1,
CISPR 16-2-3, CISPR 11 or CISPR 32 as referenced in Table 3 to Table 5.
5 Product documentation
The purchaser/user/installer shall be informed within the product documentation if special
measures have to be taken to achieve compliance. One example, would be the need to use
shielded or special cables.
6 Applicability
The application of measurements for emission(s) depends on the particular equipment, its
configuration, its ports, its technology and its operating conditions.
Measurements shall be applied to the relevant ports of the equipment according to the
requirements defined in Table 3 to Table 5. Measurements shall only be carried out where the
relevant ports exist.
It may be determined from consideration of the electrical characteristics and usage of
particular equipment that some of the measurements are inappropriate and therefore
unnecessary. In such a case it is required that the decision and justification not to measure
shall be recorded in the test report.
7 Measurement uncertainty
Where guidance for the calculation of the instrumentation uncertainty of a measurement is
specified in CISPR 16-4-2 this shall be followed, and for these measurements the
determination of compliance with the limits in this document shall take into consideration the
measurement instrumentation uncertainty in accordance with CISPR 16-4-2. Calculations to
determine the measurement result and any adjustment of the test result required when the
test laboratory uncertainty is larger than the value for U given in CISPR 16-4-2 shall be
cispr
included in the test report.
8 Compliance with this document
Where this document gives options for testing particular requirements with a choice of test
methods, compliance can be shown against any of the relevant test methods, using the
specific limits with the restrictions provided in the relevant tables clauses. For example, floor
standing shall be assessed against table clause 3.1, considering table clause 3.2 is limited to
small equipment and table clause 3.3 is limited to table top equipment.
In any situation where it is necessary to retest the equipment the test method originally
chosen shall be used in order to ensure consistency of the results.

IEC 61000-6-4:2018 © IEC 2018 – 13 –
Equipment which fulfils the requirements across the frequency ranges specified in Table 3 to
Table 5 in this document is deemed to fulfil the requirements in the entire frequency range
from 9 kHz to 400 GHz.
Measurements do not need to be performed at frequencies where no limits are specified.
NOTE CISPR TR 16-4-3 provides guidance on the applicability of limits to series produced equipment.
9 Emission requirements
The emission requirements for equipment covered by this document are given on a port by
port basis and defined in Table 3 to Table 5. Annex A is provided for information purposes
only and lists proposed limits for DC power ports.
The measurements shall be conducted in a well-defined and reproducible manner and
performed in any order.
The description of the measurement, the measurement instrumentation, the measurement
methods, and the measurement set-up to be used are given in the standards, which are
referred to in Table 3 to Table 5. These standards are not repeated here, however
modifications or additional information needed for the practical application of the
measurements are given in this document.
The following shall be taken into account during the application of the measurements defined
in Table 3 to Table 5.
• At transitional frequencies, the lower limit applies.
• Where the limit value varies over a given frequency range, it changes linearly with respect
to the logarithm of the frequency.
• The test site shall be validated for the measurement distance chosen.
• Where the table clause defines more than one detector, then the measurements shall be
performed using both types of detector. Results obtained using a peak detector may be
used instead of the other defined detectors.
• Where a different measurement distance is chosen, other than the reference distance
defined in the limit column of Table 3, the limits shall be offset based upon the following
formula:
new limit = defined limit – 20 log (measurement distance/reference distance)
The unit of metres shall be used for distance and dB(µV/m) for the limits.
With regard to each table clause, the measurements shall be performed at only one
distance.
• For radiated emission measurements, Table 2 shows the highest frequency up to which
radiated emission measurements shall be performed based up the value of F .
x
– 14 – IEC 61000-6-4:2018 © IEC 2018
Table 2 – Required highest frequency for radiated measurement
Highest internal frequency Highest measured frequency
(F )
x
F ≤ 108 MHz 1 GHz
x
108 MHz < F ≤ 500 MHz 2 GHz
x
5 GHz
500 MHz < F ≤ 1 GHz
x
F > 1 GHz 5 × F up to a maximum of 6 GHz
x x
NOTE 1 Where the highest internal frequency is not known, tests are performed up to 6 GHz.
is defined in 3.1.10.
NOTE 2 F
x
• For emission measurements above 1 GHz, the peak detector limits shall not be applied to
disturbances produced by arcs or sparks that are high voltage breakdown events. Such
disturbances arise when devices contain or control mechanical switches that control
current in inductors, or when devices contain or control subsystems that create static
electricity (such as paper handling devices). The average limits apply to disturbances from
arcs or sparks, and both peak and average limits will apply to other disturbances from
such devices.
• For radiated emission measurements using a FSOATS, FAR or SAC, the measurement
distance is the horizontal distance between the vertical projections of the calibration point
of the receiving antenna and the boundary of the EUT. The boundary of the EUT is the
smallest imaginary circular periphery around the most compact arrangement of the EUT,
using typical spacing.
• Where this document specifies the use of an average detector, the linear average detector
defined in Clause 6 of CISPR 16-1-1:2015 shall be used.
NOTE In the measurement specifics columns of Table 3 to Table 5, where relevant, the format is as follows:
characte
...