Metallic cables and other passive components test methods - Part 4-7: Electromagnetic compatibility (EMC) -Test method for measuring of transfer impedance Z<sub>T</sub> and screening attenuation a<sub>S</sub> or coupling attenuation a<sub>C</sub> of connectors and assemblies - Triaxial tube in tube method

IEC 62153-4-7:2021 is available as IEC 62153-4-7:2021 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 62153-4-7:2021 deals with the triaxial tube in tube method. This triaxial method is suitable to determine the surface transfer impedance and/or screening attenuation and coupling attenuation of mated screened connectors (including the connection between cable and connector) and cable assemblies. This method could also be extended to determine the transfer impedance, coupling or screening attenuation of balanced or multipin connectors and multicore cable assemblies. This third edition cancels and replaces the second edition published in 2015 and its Amendment 1:2018.This edition includes the following significant technical changes with respect to the previous edition:
- Annex E contains informative information about the direct measurement of screening effectiveness of connectors;
- Annex F gives normative information about mixed mode parameters;
- Annex G contains normative information about accessories for measuring coupling attenuation;
- Annex H discusses the low frequency screening attenuation.

Méthodes d’essai des câbles métalliques et autres composants passifs - Partie 4-7: Compatibilité électromagnétique (CEM) - Méthode d’essai pour mesurer l’impédance de transfert, Z<sub>T</sub>,et l’affaiblissement d’écrantage, a<sub>S</sub>,ou l’affaiblissement de couplage, a<sub>C</sub>, des connecteurs et des cordons - Méthode triaxiale en tubes concentriques

IEC 62153-4-7:2021 est disponible sous forme de IEC 62153-4-7:2021 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.
L'IEC 62153-4-7:2021 traite de la méthode triaxiale en tubes concentriques. Cette méthode triaxiale convient pour déterminer l’impédance surfacique de transfert et/ou l’affaiblissement d’écrantage et l’affaiblissement de couplage de connecteurs écrantés et accouplés (y compris la connexion entre le câble et le connecteur) et de cordons. Cette méthode pourrait également être étendue pour déterminer l’impédance de transfert, l’affaiblissement de couplage ou l’affaiblissement d’écrantage de connecteurs symétriques ou à plusieurs broches et de cordons multiconducteurs. Cette troisième édition annule et remplace la deuxième édition parue en 2015, et son Amendement 1:2018. Cette édition inclut les modifications techniques majeures suivantes par rapport à l’édition précédente:
- l’Annexe E contient des informations relatives au mesurage direct de l’efficacité d’écrantage des connecteurs;
- l’Annexe F donne des informations normatives sur les paramètres du mode mixte;
- l’Annexe G contient des informations normatives concernant les accessoires permettant de mesurer l’affaiblissement de couplage;
- l’Annexe H traite de l’affaiblissement d’écrantage à basse fréquence

General Information

Status
Published
Publication Date
22-Jul-2021
Current Stage
PPUB - Publication issued
Start Date
06-Aug-2021
Completion Date
23-Jul-2021
Ref Project

Relations

Buy Standard

Standard
IEC 62153-4-7:2021 RLV - Metallic cables and other passive components test methods - Part 4-7: Electromagnetic compatibility (EMC) -Test method for measuring of transfer impedance Z<sub>T</sub> and screening attenuation a<sub>S</sub> or coupling attenuation a<sub>C</sub> of connectors and assemblies - Triaxial tube in tube method Released:7/23/2021 Isbn:9782832252130
English language
174 pages
sale 15% off
Preview
sale 15% off
Preview
Standard
IEC 62153-4-7:2021 - Metallic cables and other passive components test methods - Part 4-7: Electromagnetic compatibility (EMC) -Test method for measuring of transfer impedance Z<sub>T</sub> and screening attenuation a<sub>S</sub> or coupling attenuation a<sub>C</sub> of connectors and assemblies - Triaxial tube in tube method
English and French language
114 pages
sale 15% off
Preview
sale 15% off
Preview

Standards Content (Sample)


IEC 62153-4-7 ®
Edition 3.0 2021-07
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Metallic communication cables and other passive components test methods –
Part 4-7: Electromagnetic compatibility (EMC) – Test method for measuring
of transfer impedance Z and screening attenuation a or coupling attenuation
T S
a of connectors and assemblies up to and above 3 GHz – Triaxial tube in tube
C
method
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.

IEC publications search - webstore.iec.ch/advsearchform IEC online collection - oc.iec.ch
The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the
variety of criteria (reference number, text, technical publications previews. With a subscription you will always
committee, …). It also gives information on projects, replaced have access to up to date content tailored to your needs.
and withdrawn publications.
Electropedia - www.electropedia.org
IEC Just Published - webstore.iec.ch/justpublished
The world's leading online dictionary on electrotechnology,
Stay up to date on all new IEC publications. Just Published
containing more than 22 000 terminological entries in English
details all new publications released. Available online and
and French, with equivalent terms in 18 additional languages.
once a month by email.
Also known as the International Electrotechnical Vocabulary

(IEV) online.
IEC Customer Service Centre - webstore.iec.ch/csc

If you wish to give us your feedback on this publication or
need further assistance, please contact the Customer Service
Centre: sales@iec.ch.
IEC 62153-4-7 ®
Edition 3.0 2021-07
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Metallic communication cables and other passive components test methods –
Part 4-7: Electromagnetic compatibility (EMC) – Test method for measuring
of transfer impedance Z and screening attenuation a or coupling attenuation
T S
a of connectors and assemblies up to and above 3 GHz – Triaxial tube in tube
C
method
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.100.10; 33.120.10 ISBN 978-2-8322-5213-0
– 2 – IEC 62153-4-7:2021 RLV © IEC 2021
CONTENTS
FOREWORD . 6
INTRODUCTION . 9
1 Scope . 10
2 Normative references. 10
3 Terms and definitions . 11
4 Physical background . 13
5 Principle of the test methods . 13
5.1 General . 13
5.2 Transfer impedance . 14
5.3 Screening attenuation . 14
5.4 Coupling attenuation . 15
6 Test procedure . 16
6.1 General . 16
6.2 Tube in tube procedure . 16
6.3 Test equipment . 17
6.4 Calibration procedure . 18
6.5 Connection between extension tube and device under test . 18
6.6 Dynamic range respectively noise floor . 19
6.7 Impedance matching . 19
6.8 Influence of adapters . 20
7 Sample preparation . 20
7.1 Coaxial connector or device . 20
7.2 Balanced or multiconductor device . 20
7.3 Cable assembly . 22
8 Measurement of transfer impedance . 22
8.1 General . 22
8.2 Principle block diagram of transfer impedance . 22
8.3 Measuring procedure – Influence of connecting cables . 23
8.4 Measuring . 23
8.5 Evaluation of test results . 23
8.6 Test report . 24
9 Screening attenuation . 24
9.1 General . 24
9.2 Impedance matching . 24
9.2.1 General . 24
9.2.2 Evaluation of test results with matched conditions . 25
9.2.3 Measuring with mismatch . 26
9.2.4 Evaluation of test results . 26
9.3 Test report . 26
10 Coupling attenuation . 27
10.1 General . 27
10.2 Procedure for testing connectors . 27
10.3 Procedure for testing cable assemblies . 28
10.4 Balunless procedure .
10.4 Expression of results Evaluation of test results when using a balun . 29

10.5 Evaluation of test results when using a multiport VNA . 30
10.6 Test report . 30
Annex A (normative) Determination of the impedance of the inner circuit . 33
Annex B (informative) Example of a self-made impedance matching adapter . 34
Annex C (informative) Measurements of the screening effectiveness of connectors
and cable assemblies . 36
C.1 General . 36
C.2 Physical basics . 36
C.2.1 General coupling equation . 36
C.2.2 Coupling transfer function . 38
C.3 Triaxial test set-up . 40
C.3.1 General . 40
C.3.2 Measurement of cable assemblies . 41
C.3.3 Measurement of connectors . 42
C.4 Conclusion . 45
Annex D (informative) Influence of contact resistances . 46
Annex E (informative) Direct measurement of screening effectiveness of connectors . 48
E.1 General Scope . 48
E.2 Test set-up. 48
E.3 Construction details of test set-up . 49
Annex F (normative) Mixed mode S-parameters . 51
F.1 General . 51
F.2 Definition of mixed mode S-parameters . 51
F.3 Reference impedance of a VNA . 54
Annex G (normative) Accessories for measuring coupling attenuation . 55
G.1 TP connecting unit . 55
G.2 Termination of the DUT . 55
G.3 Test adapter . 56
G.3.1 General . 56
G.3.2 Direct feeding with coaxial cables . 56
G.3.3 Balanced feeding cable . 57
G.3.4 Movable short circuit . 57
Annex H (informative) Low frequency screening attenuation . 59
Bibliography . 60

Figure 1 – Definition of Z . 11
T
Figure 2 – Principle of the test set-up to measure transfer impedance and screening or
coupling attenuation of connectors with tube in tube . 14
Figure 3 – Principle of the test set-up to measure transfer impedance and screening
attenuation of a cable assembly . 17
Figure 4 – Principle set-up for verification test . 19
Figure 5 – Preparation of balanced or multiconductor connectors . 22
Figure 6 – Test set-up (principle) for transfer impedance measurement according to
test method B of IEC 62153-4-3 with load resistor in inner circuit and without damping
resistor in outer circuit . 23
Figure 7 – Measuring the screening attenuation with tube in tube with impedance
matching device . 25
Figure 8 – Measuring the coupling attenuation with tube in tube and balun .

– 4 – IEC 62153-4-7:2021 RLV © IEC 2021
Figure 8 – Coupling attenuation, principle test set-up with 2-port VNA and balun . 28
Figure 9 – Coupling attenuation, principle set-up with multiport VNA and
TP‑connecting unit .
...


IEC 62153-4-7 ®
Edition 3.0 2021-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Metallic cables and other passive components test methods –
Part 4-7: Electromagnetic compatibility (EMC) – Test method for measuring
of transfer impedance Z and screening attenuation a or coupling attenuation
T S
a of connectors and assemblies – Triaxial tube in tube method
C
Méthodes d’essai des câbles métalliques et autres composants passifs –
Partie 4-7: Compatibilité électromagnétique (CEM) – Méthode d’essai pour
mesurer l’impédance de transfert, Z ,et l’affaiblissement d’écrantage, a , ou
T S
l’affaiblissement de couplage, a , des connecteurs et des cordons – Méthode
C
triaxiale en tubes concentriques

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite
ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie
et les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des
questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.

IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.

IEC publications search - webstore.iec.ch/advsearchform IEC online collection - oc.iec.ch
The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the
variety of criteria (reference number, text, technical publications previews. With a subscription you will always
committee, …). It also gives information on projects, replaced have access to up to date content tailored to your needs.
and withdrawn publications.
Electropedia - www.electropedia.org
IEC Just Published - webstore.iec.ch/justpublished
The world's leading online dictionary on electrotechnology,
Stay up to date on all new IEC publications. Just Published
containing more than 22 000 terminological entries in English
details all new publications released. Available online and
and French, with equivalent terms in 18 additional languages.
once a month by email.
Also known as the International Electrotechnical Vocabulary

(IEV) online.
IEC Customer Service Centre - webstore.iec.ch/csc

If you wish to give us your feedback on this publication or
need further assistance, please contact the Customer Service
Centre: sales@iec.ch.
A propos de l'IEC
La Commission Electrotechnique Internationale (IEC) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

A propos des publications IEC
Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possédez l’édition la
plus récente, un corrigendum ou amendement peut avoir été publié.

Recherche de publications IEC - IEC online collection - oc.iec.ch
webstore.iec.ch/advsearchform Découvrez notre puissant moteur de recherche et consultez
La recherche avancée permet de trouver des publications IEC gratuitement tous les aperçus des publications. Avec un
en utilisant différents critères (numéro de référence, texte, abonnement, vous aurez toujours accès à un contenu à jour
comité d’études, …). Elle donne aussi des informations sur adapté à vos besoins.
les projets et les publications remplacées ou retirées.

Electropedia - www.electropedia.org
IEC Just Published - webstore.iec.ch/justpublished
Le premier dictionnaire d'électrotechnologie en ligne au
Restez informé sur les nouvelles publications IEC. Just
monde, avec plus de 22 000 articles terminologiques en
Published détaille les nouvelles publications parues.
anglais et en français, ainsi que les termes équivalents dans
Disponible en ligne et une fois par mois par email.
16 langues additionnelles. Egalement appelé Vocabulaire

Electrotechnique International (IEV) en ligne.
Service Clients - webstore.iec.ch/csc
Si vous désirez nous donner des commentaires sur cette
publication ou si vous avez des questions contactez-nous:
sales@iec.ch.
IEC 62153-4-7 ®
Edition 3.0 2021-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Metallic cables and other passive components test methods –

Part 4-7: Electromagnetic compatibility (EMC) – Test method for measuring

of transfer impedance Z and screening attenuation a or coupling attenuation
T S
a of connectors and assemblies – Triaxial tube in tube method
C
Méthodes d’essai des câbles métalliques et autres composants passifs –

Partie 4-7: Compatibilité électromagnétique (CEM) – Méthode d’essai pour

mesurer l’impédance de transfert, Z ,et l’affaiblissement d’écrantage, a , ou
T S
l’affaiblissement de couplage, a , des connecteurs et des cordons – Méthode
C
triaxiale en tubes concentriques

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.100.10; 33.120.10 ISBN 978-2-8322-9988-3

– 2 – IEC 62153-4-7:2021 © IEC 2021
CONTENTS
FOREWORD . 6
INTRODUCTION . 8
1 Scope . 9
2 Normative references. 9
3 Terms and definitions . 10
4 Physical background . 12
5 Principle of the test methods . 12
5.1 General . 12
5.2 Transfer impedance . 13
5.3 Screening attenuation . 13
5.4 Coupling attenuation . 14
6 Test procedure . 15
6.1 General . 15
6.2 Tube in tube procedure . 15
6.3 Test equipment . 16
6.4 Calibration procedure . 16
6.5 Connection between extension tube and device under test . 17
6.6 Dynamic range respectively noise floor . 17
6.7 Impedance matching . 18
6.8 Influence of adapters . 18
7 Sample preparation . 19
7.1 Coaxial connector or device . 19
7.2 Balanced or multiconductor device . 19
7.3 Cable assembly . 21
8 Measurement of transfer impedance . 21
8.1 General . 21
8.2 Principle block diagram of transfer impedance . 21
8.3 Measuring procedure – Influence of connecting cables . 22
8.4 Measuring . 22
8.5 Evaluation of test results . 22
8.6 Test report . 23
9 Screening attenuation . 23
9.1 General . 23
9.2 Impedance matching . 23
9.2.1 General . 23
9.2.2 Evaluation of test results with matched conditions . 24
9.2.3 Measuring with mismatch . 25
9.2.4 Evaluation of test results . 25
9.3 Test report . 25
10 Coupling attenuation . 26
10.1 General . 26
10.2 Procedure for testing connectors . 26
10.3 Procedure for testing cable assemblies . 27
10.4 Evaluation of test results when using a balun . 28
10.5 Evaluation of test results when using a multiport VNA . 28

10.6 Test report . 29
Annex A (normative) Determination of the impedance of the inner circuit . 30
Annex B (informative) Example of a self-made impedance matching adapter . 31
Annex C (informative) Measurements of the screening effectiveness of connectors
and cable assemblies . 33
C.1 General . 33
C.2 Physical basics . 33
C.2.1 General coupling equation . 33
C.2.2 Coupling transfer function . 35
C.3 Triaxial test set-up . 37
C.3.1 General . 37
C.3.2 Measurement of cable assemblies . 38
C.3.3 Measurement of connectors . 39
C.4 Conclusion . 42
Annex D (informative) Influence of contact resistances . 43
Annex E (informative) Direct measurement of screening effectiveness of connectors . 45
E.1 Scope . 45
E.2 Test set-up. 45
E.3 Construction details of test set-up . 46
Annex F (normative) Mixed mode S-parameters . 48
F.1 General . 48
F.2 Definition of mixed mode S-para
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.