IEC GUIDE 107:2014

IEC GUIDE 107 ®
Edition 4.0 2014-07
GUIDE
GUIDE
Electromagnetic compatibility – Guide to the drafting of electromagnetic
compatibility publications
Compatibilité électromagnétique – Guide pour la rédaction des publications
sur la compatibilité électromagnétique

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IEC GUIDE 107 ®
Edition 4.0 2014-07
GUIDE
GUIDE
Electromagnetic compatibility – Guide to the drafting of electromagnetic

compatibility publications
Compatibilité électromagnétique – Guide pour la rédaction des publications

sur la compatibilité électromagnétique

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX U
ICS 33.100 ISBN 978-2-8322-1752-8

– 2 – IEC GUIDE 107:2014 © IEC 2014
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms, definitions and acronyms . 6
3.1 Terms and definitions . 6
3.2 Acronyms . 8
4 General . 9
5 Basic principles . 10
5.1 General . 10
5.2 Emission limits . 10
5.3 Immunity requirements . 10
6 Types of EMC publications . 11
6.1 General . 11
6.2 Basic EMC publications . 11
6.3 Generic EMC standards . 11
6.4 Product family EMC standards . 12
6.4.1 General . 12
6.4.2 Examples of product family EMC standards . 12
6.5 Product EMC standards . 13
6.6 Comments on the application of the different types of EMC publications . 13
7 Subjects of EMC publications . 13
8 Development of EMC publications . 14
8.1 Development of basic EMC publications. 14
8.1.1 General . 14
8.1.2 Procedure to develop basic EMC standards . 14
8.1.3 Contents of basic EMC test and measurement standards . 15
8.2 Development of generic EMC standards . 15
8.3 Development of product family/product EMC standards. 16
8.3.1 General . 16
8.3.2 Contents of product family/product EMC publications . 16
8.3.3 Emission requirements . 16
8.3.4 Immunity requirements . 17
8.4 Regulatory statements . 17
9 Liaison with other organizations . 17
10 Updating of the guide . 17
Annex A (informative) Organization of IEC work on EMC . 18
A.1 Overall organization . 18
A.2 ACEC . 18
A.3 TC 77. 18
A.3.1 Scope of TC 77 . 18
A.3.2 Specific applications . 19
A.4 CISPR . 19
A.4.1 Scope of CISPR. 19
A.4.2 Specific applications . 19
A.5 Product committees . 20

Annex B (informative) Principal electromagnetic disturbances . 21
Annex C (informative) Use of dated and undated references in IEC EMC standards . 23
C.1 Overview. 23
C.2 Recommendation . 23
C.3 Dated references . 23
C.3.1 General . 23
C.3.2 Advantages of dated references . 24
C.3.3 Disadvantages of dated references . 24
C.4 Undated references . 24
C.4.1 General . 24
C.4.2 Advantages of undated references. 24
C.4.3 Disadvantages of undated references . 24
Annex D (informative) Regulatory statements to avoid in EMC standards . 25
Bibliography . 26

Figure 1 – Equipment ports . 8
Figure A.1 – Organization of the technical work of the IEC on EMC . 18

Table 1 – Overview of the subjects of EMC publications . 14
Table B.1 – Principal electromagnetic disturbances . 22

– 4 – IEC GUIDE 107:2014 © IEC 2014
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTROMAGNETIC COMPATIBILITY –
GUIDE TO THE DRAFTING OF ELECTROMAGNETIC
COMPATIBILITY PUBLICATIONS
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.
This fourth edition of IEC Guide 107 has been prepared, in accordance with ISO/IEC
Directives, Part 1, Annex A, by the Advisory Committee on Electromagnetic Compatibility
(ACEC). This is a mandatory guide in accordance with SMB Decision 136/8.
This fourth edition cancels and replaces the third edition, published in 2009. Following the
SMB Decision 136/8, this guide is mandatory. The revision intends to take this into account by
replacing the word “should” by “shall” in several places. Some other minor editoral changes
have also been introduced.
The text of this IEC Guide is based on the following documents:
Four months' vote Report on voting
C/1773/DV C/1791/RV
Full information on the voting for the approval of this Guide 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.

– 6 – IEC GUIDE 107:2014 © IEC 2014
ELECTROMAGNETIC COMPATIBILITY –
GUIDE TO THE DRAFTING OF ELECTROMAGNETIC
COMPATIBILITY PUBLICATIONS
1 Scope
This guide describes procedures for the drafting of IEC publications that relate wholly or partly
to electromagnetic compatibility (EMC). They are applied when preparing new
electromagnetic compatibility publications or EMC clauses, as well as when revising existing
publications.
NOTE The IEC Standardization Management Board (SMB) has decided that Guides such as this one can have
mandatory requirements as well as guidance which may or may not be followed. The mandatory requirements in
this Guide are identified by the use of “shall”. Guidance only is identified by statements using the verb “should”.
These procedures are followed in order to ensure that the resulting publications are
consistent with each other and current practice, and to avoid overlapping document scopes.
This guide has been revised in order to align it with the second edition of IEC Guide 108,
which states: “For safety and EMC standards the principles of this guide are addressed by the
specific technical provisions of IEC Guides 104 and 107 respectively.”
Technical committees should consult the documents listed in Clause 2 when preparing EMC
publications or EMC clauses.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and
are indispensable for its application. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 60050 (all parts), International Electrotechnical Vocabulary (available at
http://www.electropedia.org)
IEC TR 61000-2-5, Electromagnetic compatibility (EMC) – Part 2-5: Environment –
Description and classification of electromagnetic environments
3 Terms, definitions and acronyms
3.1 Terms and definitions
For the purposes of this document, the terms and definitions in IEC 60050-161 as well as the
following apply.
3.1.1
electromagnetic compatibility
EMC
ability of an equipment or system to function satisfactorily in its electromagnetic environment
without introducing intolerable electromagnetic disturbances to anything in that environment
[SOURCE: IEC 60050-161:1990, 161-01-07]

3.1.2
EMC committees
in the context of this guide, CISPR and TC 77
3.1.3
(electromagnetic) compatibility level
the specified electromagnetic disturbance level used as a reference level for co-ordination in
the setting of emission and immunity limits
Note 1 to entry: By convention, the compatibility level is chosen so that there is only a small probability that it will
be exceeded by the actual disturbance level. However electromagnetic compatibility is achieved only if emission
and immunity levels are controlled such that, at each location, the disturbance level resulting from the cumulative
emissions is lower than the immunity level for each device, equipment and system situated at this same location.
Note 2 to entry: The compatibility level may be phenomenon, time or location dependent.
[SOURCE: IEC 60050-161:1990/IEC 60050-161:1990/AMD1:1997]
3.1.4
electromagnetic disturbance
any electromagnetic phenomenon which may degrade the performance of a device,
equipment or system, or adversely affect living or inert matter
Note 1 to entry: An electromagnetic disturbance may be an electromagnetic noise, an unwanted signal or a
change in the propagation medium itself.
[SOURCE: IEC 60050-161:1990, 161-01-05]
3.1.5
(electromagnetic) emission
phenomenon by which electromagnetic energy emanates from a source
[SOURCE: IEC 60050-161:1990, 161-01-08]
3.1.6
electromagnetic environment
the totality of electromagnetic phenomena existing at a given location
[SOURCE: IEC 60050-161:1990, 161-01-01, modified – The note in the original definition has
been deleted.]
3.1.7
electromagnetic interference
EMI
degradation of the performance of an equipment, transmission channel or system caused by
an electromagnetic disturbance
Note 1 à l'article: In English, the terms “electromagnetic disturbance” and “electromagnetic interference”
designate respectively the cause and the effect, but they are often used indiscriminately.
[SOURCE: IEC 60050-161:1990, 161-01-06]
3.1.8
high frequency
frequency above 9 kHz
Note 1 to entry: This is a special definition used in IEC EMC publications.

– 8 – IEC GUIDE 107:2014 © IEC 2014
3.1.9
horizontal standard
standard on fundamental principles, concepts, terminology or technical characteristics,
relevant to a number of technical committees and of crucial importance to ensure the
coherence of the corpus of standardization documents
3.1.10
immunity (to a disturbance)
ability of a device, equipment or system to perform without degradation in the presence of an
electromagnetic disturbance
[SOURCE: IEC 60050-161:1990, 161-01-20]
3.1.11
low frequency
frequency up to and including 9 kHz
Note 1 to entry: This is a special definition used in IEC EMC publications.
3.1.12
port
particular interface of the equipment which couples this equipment with or is influenced by 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 apparatus (e.g. enclosure). The enclosure port provides for radiated and electrostatic discharge (ESD)
energy transfer, whereas the other ports provide for conducted energy transfer.
EUT
Optical fibre port AC mains power port
Enclosure port
RF modulator output
DC network power port
port
Broadcast receiver tuner
port
Antenna
Wired network port
Antenna port
Signal/control port
IEC
Figure 1 – Equipment ports
3.1.13
basic EMC publication
in the context of this guide, a horizontal standard
3.2 Acronyms
ACEC Advisory Committee on Electromagnetic Compatibility

CENELEC European Committee for Electrotechnical Standardization
CIGRE International Conference on Large High Voltage Electric Systems
CISPR International Special Committee on Radio Interference
EMC Electromagnetic compatibility
EMI Electromagnetic Interference
ESD Electrostatic discharge
EURELECTRIC European union of the electricity industry
HEMP High-altitude electromagnetic pulse
HPEM High-power electromagnetics
HV High voltage
IEEE Institute of Electrical and Electronic Engineers
ISO International Organization for Standardization
ITE Information technology equipment
ITU International Telecommunication Union
LV Low voltage
MV Medium voltage
OIML International Organization of Legal Metrology
PLT Power line telecommunications
SMB Standardization Management Board
4 General
Aspects of EMC and methods to achieve it have developed over a long period of time and are
fairly complex subjects. Many IEC technical committees are concerned with general aspects
or with particular aspects relating to specific products.
Work related to EMC has been carried out over many years in the IEC by the International
Special Committee on Radio Interference (CISPR). The CISPR was established in 1934 as a
joint committee of international organizations including the IEC, but became later a special
committee under the sponsorship of the IEC. The scope of the CISPR is given in Annex A.
TC 77 was organized in 1974 as a technical committee of the IEC to cover various aspects of
EMC with the emphasis on dealing with standards. The scope of TC 77 is also given in
Annex A.
CISPR and TC 77 will be referred to in this guide as EMC committees and the organization of
the IEC work on EMC is given in Annex A.
In the context of this guide, EMC covers radiated and conducted phenomena over the entire
frequency range from 0 Hz to 400 GHz (and possibly to higher frequencies) and relates to
phenomena listed in IEC TR 61000-2-5.
The task of the EMC committees in the IEC includes standardization relating to electrical and
electronic equipment, to public and industrial electricity supply systems, and also to
radiocommunication and telecommunications. This may be done in liaison with the relevant
specialized organizations.
EMC requirements have economic and social impact, and this should be recognized in the
development of any standards, which might affect the performance of equipment. Both
inadequate electromagnetic compatibility and the imposition of unnecessary requirements
should be avoided.
– 10 – IEC GUIDE 107:2014 © IEC 2014
EMC work in IEC may also have implications for safety, particularly the effects of
electromagnetic disturbances on the functional safety of equipment. Direct effects on
biological materials are not included, but the measurement of fields, which may produce such
effects, is included.
5 Basic principles
5.1 General
The Advisory Committee on EMC (ACEC) advises the Standardization Management Board
(SMB) with regard to the coordination of IEC work relating to EMC matters in order to avoid
duplication and conflict in IEC standards. This coordination shall relate primarily to
electromagnetic emission, coupling and immunity to disturbances. ACEC will maintain a close
liaison with technical committees dealing with EMC matters including product committees and
EMC committees. ACEC reports to the SMB with recommendations to resolve conflicts as
needed. ACEC is also responsible for maintaining IEC Guide 107.
5.2 Emission limits
TC 77 and CISPR are EMC committees having responsibility for developing emission limits
and emission measurement requirements to achieve EMC. These committees shall take into
consideration the needs (e.g. practicality and cost effectiveness with respect to measurement
instrumentation and methods) of the product committees.
TC 77 is responsible for emission in the low frequency range (f ≤ 9 kHz). TC77 is responsible
for emission in the high frequency range (f > 9 kHz) in coordination with CISPR, and for
disturbances not covered by CISPR. To ensure uniformity and to maintain control of the
electromagnetic environment, product committees shall use the emission limits developed by
EMC committees by making reference to the standards of EMC committees. Product
committees are not free to set their own emission limits since there would be no guarantee
that acceptable compatibility levels or disturbance levels would be respected.
CISPR and TC 77 are also responsible for the generic emission standards that may be
applied to those products for which a separate product emission standard is not deemed
necessary.
When the EMC standards developed by EMC committees are not considered suitable for a
particular product or electromagnetic environment, product committees shall seek the
assistance and advice of the EMC committees for any change in the emission limits and/or
measurement requirements.
5.3 Immunity requirements
TC 77 has the responsibility for developing the basic EMC standards for immunity of products.
If product committees intend to require immunity to particular disturbances, they shall refer to
these basic EMC immunity standards for the specification of test techniques. Product
committees are responsible for defining the relevant performance criteria and selecting the
appropriate immunity test levels for their products, taking into account the expected
electromagnetic environment. It is noted that TC 77 is available to the product committees to
provide advice and support in the setting of immunity levels. TC 77 has the responsibility for
developing generic immunity standards, which are available to be used as a guide by the
product committees.
6 Types of EMC publications
6.1 General
EMC publications and standards developed by the IEC including CISPR and other
standardization bodies can broadly be placed in four categories, which are described in the
following subclauses. Lists of current EMC publications defined below are available on the
EMC Zone of the IEC web site under “http://www.iec.ch/emc/”.
6.2 Basic EMC publications
Basic EMC publications give the fundamental principles, concepts, terminology, technical
characteristics and/or test procedures for the achievement of EMC and should be used as
reference documents by technical/product committees. In the context of this guide, basic EMC
publications have the same status as horizontal standards.
Basic EMC publications
a) may be standards, technical specifications or technical reports;
b) are general applicability documents and hence are not dedicated to EMC for specific
product families or products;
c) may concern in particular (but not exclusively):
1) terminology;
2) descriptions of electromagnetic phenomena;
3) specification of compatibility levels;
4) general requirements for the limitation of emission of disturbances;
5) recommendations for test levels with regard to the immunity of the equipment
6) measurement and test equipment;
7) measurement techniques, test techniques and their applicability;
8) descriptions and classification of the electromagnetic environment;
d) should not include prescribed limits, test levels, and specific performance criteria, but may
include guidance on these matters. Prescribed values are covered by the generic, product
family or product standards;
e) shall be identified on the front page by the indication "BASIC EMC PUBLICATION”.
6.3 Generic EMC standards
Generic EMC standards are designed to apply, for a defined electromagnetic environment, to
products for which no dedicated product family EMC/product EMC standards exist. They
specify a set of requirements, test procedures and generalized performance criteria applicable
to such products or systems operating in this electromagnetic environment. If product
committees believe there is a necessity to deviate from the generic EMC standards, they shall
consult with the appropriate EMC committee. Deviations may include test levels,
measurement methods and performance criteria for the particular electromagnetic
environment. See the list below for more information.
Generic EMC standards
a) do not include detailed measurement and test methods, etc., but refer for that purpose to
the basic EMC standards;
b) provide requirements and tests related to emission and immunity, possibly in separate
documents;
c) specify a limited number of emission and immunity tests, maximum emission levels as well
as minimum immunity test levels, in order to achieve a technical/economical optimum;
d) shall be identified on the front page by the indication "GENERIC EMC STANDARD".

– 12 – IEC GUIDE 107:2014 © IEC 2014
6.4 Product family EMC standards
6.4.1 General
A product family, for EMC, is a group of similar products for which the same standards can be
applied.
Product family EMC standards define specific emission and immunity requirements as well as
measurement and test procedures dedicated to particular product families. They indicate the
relevant installation and operating conditions. They also give precise performance criteria,
taking into account the purpose of the equipment.
It is recommended that product committees consult the relevant generic EMC standards for
their electromagnetic environment of interest and consider whether those test methods and
levels are adequate for their purposes. If so, the appropriate generic EMC standard should be
referenced. If a product family EMC standard is developed, maintained or revised, the product
committees should apply the basic EMC standards to the extent practicable.
Product family EMC standards
a) may take either the form of a separate publication or the form of one dedicated clause in a
comprehensive product family standard, although a separate publication is preferred;
b) shall refer to the basic EMC standards for instrumentation, measurement and/or test
methods, and test set-ups;
c) if a deviation from the generic standards is needed in exceptional cases, a justification
shall be given in the product family EMC standard, e.g. in an informative annex of the
standard.
NOTE The work for the development of product family EMC standards may be carried out by EMC committees,
product committees or other relevant committees. Two kinds of product family standards for EMC should be
considered:
a) Product family standards with a very wide field of application covering several product committees, in
particular standards relating to emission of disturbances produced by numerous kinds of equipment, e.g.:
– conducted disturbances in the mains network produced by non-linear loads;
– radio frequency disturbances produced by industrial or household equipment.
In view of the necessity of coordinating a great number of product committees, such types of product family
standards are developed by TC 77 or CISPR;
b) Specific product family standards:
Normally the relevant product committees are responsible for the development of these standards. If it is
unclear which committee should be responsible for this work, then ACEC may recommend a committee or
committees to carry out the work. Where a product committee does not have the relevant expertise or capacity,
it shall request ACEC to ask another committee to undertake the work, or to assist them with it.
6.4.2 Examples of product family EMC standards
The following main product families have been identified for EMC (the list is not exhaustive):
a) multimedia equipment including, among others:
– radio and TV receivers and associated equipment;
– information technology equipment (ITE);
– telecommunication equipment (as far as it is within the scope of the IEC);
– power line telecommunications (PLT) terminal equipment;
b) household and commercial equipment (other than ITE);
c) industrial-process measurement and control equipment (other than ITE);
d) traffic and transportation equipment;
e) utilities equipment (electricity, gas, water, etc.);
f) medical equipment;
g) measuring and test equipment;
h) equipment connected to the HV, MV and LV public mains networks.
Further information can be obtained by consulting the product family EMC publications
prepared by EMC committees.
6.5 Product EMC standards
Product EMC standards relate to a particular type of product for which specific conditions
shall be considered. The same rules apply as for the product family EMC standards.
Examples of product EMC standards may be found in the IEC EMC Zone
“http://www.iec.ch/zone/emc/”.
6.6 Comments on the application of the different types of EMC publications
The differences in the applications between these four different types of standards are as
follows.
a) Basic EMC standards relate to general information, to the disturbing phenomena and to
measurement instrumentation and methods/techniques.
b) Generic EMC standards specify a number of disturbances and tests, applicable to
products operating in a given electromagnetic environment. They can be applied to:
1) product families/products operating in the given electromagnetic environment when
there are no specific EMC standards for these product families/products;
2) product families/products when the responsible product committee considers the
requirements of the generic EMC standards sufficient for their product
families/products.
c) Product family/product EMC standards take into account their relevant electromagnetic
environment and installation conditions for determination of appropriate phenomena, test
levels and performance criteria. This should be done by also taking into consideration the
relevant generic EMC standards for the selection of their tests, test levels and
performance criteria. Where a product family/product EMC standard specifies less
stringent test values/levels for a phenomenon or if a phenomenon is only partially covered
(e.g. the product family/product EMC standard only covers a subset of the recommended
frequency range), either a justification or a reference to the relevant requirement in
another EMC standard shall be given in the product family/product EMC standard. Since a
product family/product EMC standard usually gives more specific requirements, it is
generally considered that it takes precedence over the corresponding generic EMC
standard.
7 Subjects of EMC publications
Table 1 below outlines the typical subjects of EMC publications. This list should not be
considered as exhaustive and should be adapted by product committees as appropriate.

– 14 – IEC GUIDE 107:2014 © IEC 2014
Table 1 – Overview of the subjects of EMC publications
General
Scope
Terminology, definitions
Fundamental principles
Environment
Description of the electromagnetic phenomena
Sources and effects of the electromagnetic phenomena
Levels of occurrence – Statistical distribution
Compatibility levels
Classification of the electromagnetic environments
Structure of the equipment
Ports
Emission
Limits
Immunity
Test levels
Performance criteria
Measurement techniques
Instrumentation and procedures
Testing techniques (emission and immunity)
Instrumentation and procedures
Installation guidelines
Mitigation methods and devices
Product safety aspects
Measurement techniques and procedures

8 Development of EMC publications
8.1 Development of basic EMC publications
8.1.1 General
The procedures specified in 8.1.2 and 8.1.3 are intended for the development of basic EMC
publications.
8.1.2 Procedure to develop basic EMC standards
Basic EMC publications (as described in 6.2) are the responsibility of the following
committees:
a) TC 77: "Electromagnetic compatibility" and its subcommittees;
b) CISPR, particularly CISPR subcommittee A: "Radio-interference measurements and
statistical methods".
When developing basic EMC standards, the following steps should be applied.
When a product committee sees the need for a basic EMC standard, it should formally
request, normally by means of a new work item proposal (NP), the appropriate EMC
committee for their consideration of the matter.
The members of ACEC should be informed by means of the NP of the intended basic EMC
publication by the Central Office.
If a product committee comes to the conclusion that a basic EMC standard is not completely
suitable for the product committee's intended application, it should submit to the committee

having developed the basic EMC standard a formal proposal for amendments, together with
technical reasons.
If the EMC committee responsible for the basic EMC standard considers the proposed
amendment or the proposed new subject to be not sufficiently general, the product committee
may introduce, in its own publication, the necessary amendments to the wording of the basic
EMC publication, or the needed specification. Such amendments should be indicated in the
foreword of the product publication (see 6.1.3 of the ISO/IEC Directives, Part 2:2011). In
addition, it is recommended that a cross-reference to the foreword be given in the relevant
clause of the publication.
When it is not clear which EMC committee is appropriate, the product committee should ask
ACEC for a recommendation for decision by the SMB. When an item has a commonality of
interest between CISPR and TC 77, the work should be done in cooperation and a joint task
force may be established for this purpose.
All NPs and subsequent documents concerning a basic EMC publication should include an
indication that the proposed publication is intended to be designated as a basic EMC
publication.
8.1.3 Contents of basic EMC test and measurement standards
As far as possible, the contents of basic EMC standards for tests and measurements should
cover the following items (in one or several documents):
1) Scope
2) Normative references
3) Definitions
4) General considerations
5) Range of test levels for immunity standards
6) Test equipment (including calibration)
7) Test set-up
8) Test procedure (including measurement uncertainty)
9) Evaluation of test results
10) Test report
11) Annexes as appropriate (e.g. rationales for the specifications).
8.2 Development of generic EMC standards
Generic EMC standards, because of their general nature, are the responsibility of the EMC
committees.
Generic EMC standards relate to particular electromagnetic environments of general
importance, such as:
– residential and commercial;
– industrial;
– power stations/substations.
NOTE Some electromagnetic environments may be described by technical specifications in their first editions.
The type of electromagnetic environment should be clarified by examples of relevant sites
(e.g. households, shops, workshops).
The EMC generic standards specify only essential phenomena to be considered and the
relevant tests. However, they include the most important requirements concerning both
emission and immunity
a) in the low frequency range;

– 16 – IEC GUIDE 107:2014 © IEC 2014
b) in the high frequency range.
In view of the possibly wide field of application, generic EMC standards may not always be
readily applied to specific products, hence the development of product family or product EMC
standards may be necessary.
8.3 D
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