SIST EN IEC 62153-4-5:2021

Metallic communication cable test methods - Part 4-5: Electromagnetic compatibility (EMC) - Screening or coupling attenuation - Absorbing clamp method (IEC 62153-4-5:2021)

The absorbing clamp method is suitable to determine the screening- or the coupling attenuation of metallic communication cables in the frequency range of 30 MHz to 2400 MHz, depending on the performance of the clamp. It is an alternative method to the the triaxial method of IEC 62153-4-4 or IEC 62153-4-9. Due to the undefined outer circuit of this absorbing clamp method, the test results obtained at different places and laboratories could vary by at least ± 6dB.

Prüfverfahren für metallische Kommunikationskabel - Teil 4-5: Elektromagnetische Verträglichkeit (EMV) - Kopplungsdämpfung oder Schirmdämpfung - Verfahren mit Absorberzangen (IEC 62153-4-5:2021)

Méthodes d'essai des câbles métalliques et autres composants passifs - Partie 4-5: Compatibilité électromagnétique (CEM) - Affaiblissement d'écran ou de couplage - Méthode de la pince absorbante (IEC 62153-4-5:2021)

IEC 62153-4-5:2021 convient pour déterminer l’affaiblissement d’écran ou de couplage de câbles métalliques de communication dans la plage de fréquences de 30 MHz à 1 000 MHz (2 400 MHz), selon les performances de la pince. Il s’agit d’une variante de la méthode triaxiale de l’IEC 62153-4-4 ou de l’IEC 62153-4-9. Étant donné que le circuit externe de cette méthode de la pince absorbante n’est pas défini, les résultats d’essai obtenus dans différents lieux et laboratoires peuvent varier de plus de ±6 dB.
Cette deuxième édition annule et remplace la première édition parue en 2006. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a. réorganisation des articles et des annexes;

b. extension de la plage de fréquences à 2,4 GHz;

c. application d’une procédure d’essai avec symétriseur virtuel et sans symétriseur avec un analyseur de réseau vectoriel (VNA) à plusieurs ports.

Preskusne metode za kovinske komunikacijske kable - 4-5. del: Elektromagnetna združljivost (EMC) - Zaslonsko slabljenje ali sklopno slabljenje - Metoda absorpcijske objemke (IEC 62153-4-5:2021)

General Information

• Status: Published
• Publication Date: 18-Oct-2021
• ICS: 33.100.01 - Electromagnetic compatibility in general
• ICS: 33.120.10 - Coaxial cables. Waveguides
• Technical Committee: MOC - Mobile Communications
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 07-Oct-2021
• Due Date: 12-Dec-2021
• Completion Date: 19-Oct-2021
• Ref Project: EN IEC 62153-4-5:2021 - Metallic communication cable test methods - Part 4-5: Electromagnetic compatibility (EMC) - Screening or coupling attenuation - Absorbing clamp method

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN IEC 62153-4-5:2021
01-december-2021
Preskusne metode za kovinske komunikacijske kable - 4-5. del: Elektromagnetna
združljivost (EMC) - Zaslonsko slabljenje ali sklopno slabljenje - Metoda
absorpcijske objemke (IEC 62153-4-5:2021)
Metallic communication cable test methods - Part 4-5: Electromagnetic compatibility
(EMC) - Screening or coupling attenuation - Absorbing clamp method (IEC 62153-4-
5:2021)
Prüfverfahren für metallische Kommunikationskabel - Teil 4-5: Elektromagnetische
Verträglichkeit (EMV) - Kopplungsdämpfung oder Schirmdämpfung - Verfahren mit
Absorberzangen (IEC 62153-4-5:2021)
Méthodes d'essai des câbles métalliques et autres composants passifs - Partie 4-5:
Compatibilité électromagnétique (CEM) - Affaiblissement d'écran ou de couplage -
Méthode de la pince absorbante (IEC 62153-4-5:2021)
Ta slovenski standard je istoveten z: EN IEC 62153-4-5:2021
ICS:
33.100.01 Elektromagnetna združljivost Electromagnetic compatibility
na splošno in general
33.120.10 Koaksialni kabli. Valovodi Coaxial cables. Waveguides
SIST EN IEC 62153-4-5:2021 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN IEC 62153-4-5:2021

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SIST EN IEC 62153-4-5:2021


EUROPEAN STANDARD EN IEC 62153-4-5

NORME EUROPÉENNE

EUROPÄISCHE NORM
October 2021
ICS 33.120.10; 33.100.10

English Version
Metallic communication cable test methods - Part 4-5:
Electromagnetic compatibility (EMC) - Screening or coupling
attenuation - Absorbing clamp method
(IEC 62153-4-5:2021)
Méthodes d'essai des câbles métalliques de communication Prüfverfahren für metallische Kommunikationskabel - Teil 4-
- Partie 4-5: Compatibilité électromagnétique (CEM) - 5: Elektromagnetische Verträglichkeit (EMV) -
Affaiblissement d'écran ou de couplage - Méthode de la Kopplungsdämpfung oder Schirmdämpfung - Verfahren mit
pince absorbante Absorberzangen
(IEC 62153-4-5:2021) (IEC 62153-4-5:2021)
This European Standard was approved by CENELEC on 2021-09-30. 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
© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. EN IEC 62153-4-5:2021 E

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SIST EN IEC 62153-4-5:2021
EN IEC 62153-4-5:2021 (E)
European foreword
The text of document 46/819/FDIS, future edition 2 of IEC 62153-4-5, prepared by IEC/TC 46 “Cables,
wires, waveguides, RF connectors, RF and microwave passive components and accessories” was
submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN IEC 62153-4-5:2021.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2022–06–30
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2024–09–30
document have to be withdrawn
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.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 62153-4-5:2021 was approved by CENELEC as a
European Standard without any modification.
In the official version, for Bibliography, the following note has to be added for the standard indicated:
1
IEC 62153-4-3 NOTE Harmonized as EN 62153-4-3

1
To be published. Stage at the time of publication: prEN 62153-4-3:2021.
2

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SIST EN IEC 62153-4-5:2021
EN IEC 62153-4-5:2021 (E)
Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod), the
relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available
here: www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60050-726 - International Electrotechnical Vocabulary - -
(IEV) – Part 726: Transmission lines and
waveguides
IEC/TS 62153-4-1 - Metallic communication cable test methods - -
- Part 4–1: Electromagnetic compatibility
(EMC) - Introduction to electromagnetic
screening measurements
CISPR 16-1-3 2004 Specification for radio disturbance and EN 55016-1-3 2006
immunity measuring apparatus and
methods - Part 1–3: Radio disturbance and
immunity measuring apparatus - Ancillary
equipment - Disturbance power
ITU-T G.117 1996 Transmission aspects of unbalance about - -
earth
ITU-T O.9 1999 Measuring arrangements to assess the - -
degree of unbalance about earth


3

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SIST EN IEC 62153-4-5:2021




IEC 62153-4-5

®


Edition 2.0 2021-08




INTERNATIONAL



STANDARD




NORME


INTERNATIONALE
colour

inside









Metallic communication cable test methods –

Part 4-5: Electromagnetic compatibility (EMC) – Screening or coupling

attenuation – Absorbing clamp method



Méthodes d’essai des câbles métalliques de communication –

Partie 4-5: Compatibilité électromagnétique (CEM) – Affaiblissement d’écran ou


de couplage – Méthode de la pince absorbante













INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE


INTERNATIONALE




ICS 33.100.10; 33.120.10 ISBN 978-2-8322-1013-5




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

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

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

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SIST EN IEC 62153-4-5:2021
– 2 – IEC 62153-4-5:2021 © IEC 2021
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Principles of the test method . 7
5 Equipment . 8
5.1 General . 8
5.2 Balun requirements . 9
5.3 TP connecting unit requirements . 11
5.4 Test sample . 12
5.4.1 Tested cable length . 12
5.4.2 Preparation of test sample . 12
6 Test set-up . 14
6.1 Test set-up calibration . 14
6.2 Composite loss of the test set-up . 14
6.2.1 General . 14
6.2.2 Reflection loss of the absorbing clamp in the calibration set-up . 15
6.3 Attenuation of the measuring set-up . 16
6.4 Insertion loss of the absorbers . 16
6.5 Test set-up arrangement . 17
6.5.1 Test set-up verification . 20
6.6 Pulling force on cable . 20
7 Procedure . 21
7.1 General . 21
7.2 Screening attenuation of coaxial respectively quasi coaxial cables . 22
7.2.1 Matched conditions . 22
7.2.2 Unmatched conditions . 23
7.3 Coupling attenuation of balanced cables . 24
7.3.1 Coupling attenuation measurement with balun . 24
7.3.2 Balunless coupling attenuation measurement − Set-up . 25
7.3.3 Expression of test results . 25
8 Test report . 25
9 Requirement . 26
Annex A (normative) Determination of the impedance of the inner circuit . 27
A.1 Determination of impedance of inner circuit . 27
A.2 Impedance matching device if Z < 50 Ω . 27
1
A.3 Impedance matching device if Z > 50 Ω . 28
1
Annex B (informative) Example of a self-made impedance matching adapter . 29
Annex C (informative) Evaluation of test results for the coupling attenuation of
balanced cables . 31
C.1 Worst case . 31
C.2 Examples . 31
Annex D (informative) Reflection loss of a junction . 34
Annex E (informative) Mixed mode parameters . 36
E.1 Definition of mixed mode S-parameters . 36

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SIST EN IEC 62153-4-5:2021
IEC 62153-4-5:2021 © IEC 2021 – 3 –
E.2 Reference impedance of VNA . 39
Bibliography . 40

Figure 1 – Measurement of near end screening attenuation, principle . 9
Figure 2 – Measurement of near end coupling attenuation with balun . 11
Figure 3 – Balunless measuring of near end coupling attenuation with multiport VNA . 12
Figure 4 – Termination of a screened symmetrical cable . 13
Figure 5 – Preparation of test sample (symmetrical and multi conductor cables) . 13
Figure 6 – Calibration set-up . 15
Figure 7 – Termination during calibration . 15
Figure 8 – Measurement of the insertion loss of an absorber . 17
Figure 9 – Example of screen connections for screened twisted pair cable
measurement . 18
Figure 10 – Test set-up for near end measurement of symmetrical cable . 19
Figure 11 – Measurement of surface wave at near end of sample, principle . 19
Figure 12 – Measurement of surface wave at far end of sample, principle . 20
Figure 13 – Shielding arrangements for a far end measurement. 21
Figure A.1 – Impedance matching for Z <50 Ω . 28
1
Figure A.2 – Impedance matching for Z >50 Ω . 28
1
Figure B.1 – Attenuation and return loss . 29
Figure B.2 – Attenuation and return loss . 30
Figure C.1 – Example measurement of a foil screen symmetrical cable . 31
Figure C.2 – Example measurement of a well screened symmetrical cable . 32
Figure C.3 – Example measurement of a well screened coaxial cable . 32
Figure C.4 – Frequent measurement error of a symmetrical cable . 33
Figure C.5 – Frequent measurement error of a symmetrical cable . 33
Figure D.1 – Source with R and R . 34
i L
Figure E.1 – Common two-port network . 36
Figure E.2 – Common four port network . 36
Figure E.3 – Physical and logical ports of VNA . 37
Figure E.4 – Nomenclature of mixed mode S-parameters . 37
Figure E.5 – Measurement configuration, single ended response . 38
Figure E.6 – Measurement configuration, differential mode response . 38

Table 1 − Balun performance characteristics (30 MHz to 1,0 GHz) . 10
Table 2 − Balun performance characteristics (30 MHz to 2,4 GHz) . 10
Table 3 – TP-connecting unit performance characteristics (30 MHz to 2,4 GHz) . 11

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INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

METALLIC COMMUNICATION CABLE TEST METHODS –

Part 4-5: Electromagnetic compatibility (EMC) –
Screening or coupling attenuation – Absorbing clamp method

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
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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
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3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
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4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
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5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
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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
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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.
IEC 62153-4-5 has been prepared by IEC technical committee 46: Cables, wires, waveguides,
RF connectors, RF and microwave passive components and accessories. It is an International
Standard.
This second edition cancels and replaces the first edition published in 2006. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) reorganisation of clauses and annexes;
b) extension of frequency range to 2,4 GHz;
c) application of a virtual balun respectively balunless test procedure with multiport VNA.

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SIST EN IEC 62153-4-5:2021
IEC 62153-4-5:2021 © IEC 2021 – 5 –
The text of this International Standard is based on the following documents:
FDIS Report on voting
46/819/FDIS 46/829/RVD

Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement,
available at www.iec.ch/members_experts/refdocs. The main document types developed by
IEC are described in greater detail at www.iec.ch/standardsdev/publications.
This standard is intended to be read in conjunction with IEC TS 62153-4-1:2014, which
describes the theoretical background.
A list of all parts in the IEC 62153-4-n series, under the general title: Metallic communication
cable test methods − Electromagnetic Compatibility (EMC) 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.

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METALLIC COMMUNICATION CABLE TEST METHODS –

Part 4-5: Electromagnetic compatibility (EMC) –
Screening or coupling attenuation – Absorbing clamp method



1 Scope
The absorbing clamp method is suitable to determine the screening- or the coupling-
attenuation of metallic communication cables in the frequency range of 30 MHz to 1 000 MHz
(2 400 MHz), depending on the performance of the clamp. It is an alternative method to the
triaxial method of IEC 62153-4-4 or IEC 62153-4-9. Due to the undefined outer circuit of this
absorbing clamp method, the test results obtained at different places and laboratories could
vary by at least ± 6 dB.
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 60050-726, International Electrotechnical Vocabulary (IEV) – Part 726: Transmission
lines and waveguides
IEC TS 62153-4-1, Metallic communication cable test methods – Part 4-1: Electromagnetic
compatibility (EMC) – Introduction to electromagnetic screening measurements
CISPR 16-1-3:2004, Specification for radio disturbance and immunity measuring apparatus
and methods – Part 1-3: Radio disturbance and immunity measuring apparatus – Ancillary
equipment – Disturbance power
ITU-T G.117:1996, Transmission aspects of unbalance about earth
ITU-T O.9:1999, Measuring arrangements to assess the degree of unbalance about earth
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60050-726 and
IEC TS 62153-4-1 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
quasi-coaxial cable
cable construction with two or more inner conductors enclosed by cable screens acting as an
outer conductor, connected together on both ends
Note 1 to entry: Screened balanced or multiconductor cables become a quasi-coaxial system by short circuiting
the inner conductive elements.

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SIST EN IEC 62153-4-5:2021
IEC 62153-4-5:2021 © IEC 2021 – 7 –
4 Principles of the test method
The cable (for unbalanced respectively coaxial cables) or one cable pair (for balanced cables)
is fed with the power P . Due to the electromagnetic coupling between the cable or pair and
1
the environment, surface waves are exited which propagate in both directions along the
screen surface (or the cable surface where there is not a screen). A surface current
transformer is used for picking up the power of the surface waves in combination with an
absorber (usually a ferrite tube) to suppress unwanted common mode currents. These kinds
of combinations are known as absorbing clamps.
On the basis of the peak values of the measured surface currents, it is possible to calculate
the maximum peak power, P , in the secondary system formed by the screen of the cable
2max
(or the cable itself) and the environment.
The logarithmic ratio of the powers P and P is termed screening or coupling attenuation,
1 2max
expressed in dB.
In case of balunless measurement, coupling attenuation is termed by the logarithmic ratio of
the powers P and P .
diff com,max
For unbalanced (coaxial) or quasicoaxial cables, the measurement result is the screening
attenuation. For balanced (symmetrical) cables, we have to consider two cases:
a) disturbing power fed in differential mode: the measurement result is the coupling
attenuation, which is the combined result of both unbalance attenuation and screening
attenuation;
b) disturbing power fed in common mode: the measurement result is the screening
attenuation.
To measure coupling attenuation, a balanced signal is required to feed the balanced pair
under test. This can be achieved by using a two port VNA and a balun to transform
unbalanced (usually 50 Ω) generator signal into the balanced (usually 100 Ω) signal of the
balanced cable.
Another option is the “balun-less” test method by using a 4 port vector network analyser or
similar test equipment. The preferred method is the balunless (virtual balun) method.
The surface current is measured on a swept-frequency basis with a stationary clamp.
Taking into account the maximum effect of either near or far end surface waves, the coupling
(or the screening attenuation a
attenuation a ) is defined by:
c S

P
1
a =10 log (1)

c 10

max PP;
[ ]
2n 2f

where
P is the input power of inner circuit of the sample;
1
P is the maximum near end coupling peak power;
2n
P is the maximum far end coupling peak power.
2f
A detailed description of the physical background of screening attenuation and coupling
attenuation measurement is given in IEC TS 62153-4-1.

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5 Equipment
5.1 General
The test set-up shall have a noise floor at least 6 dB better than the instrument reading
required for the value to be reported. This means, for instance, that a test with an equipment
dynamic range of at least 115 dB is required for measuring coupling attenuation or screening
attenuation up to approximately 90 dB, when the full attenuation of a normal absorbing clamp
and balun or TP-connecting unit (if applicable) are taken into account. The accuracy of any
equipment shall be better than ± 1 dB.
To measure high values of screening and coupling attenuation, in general higher than 80 dB,
it is recommended to carry out the measurements in a screened room (e.g. anechoic
chamber).
The equipment shall be capable of measuring coupling attenuation or screening attenuation in
the full frequency range from 30 MHz to 1 GHz and/or 500 MHz to 2,4 GHz if not specified
otherwise in the relevant cable specification. For measurements at frequencies above 1 GHz,
it is recommended to use the balunless test procedure.
The measurement set-up can be performed using a network analyser or alternatively a
discrete signal generator and selective measuring receiver.
To measure the coupling attenuation as well as t
...