SIST EN 62153-4-2:2004

Metallic communication cables test methods -- Part 4-2: Electromagnetic compatibility (EMC) - Screening and coupling attenuation - Injection clamp method

describes the injection clamp test method which determines the screening attenuation (as) of coaxial cables and the coupling attenuation (ac) of balanced shielded or unshielded data cables in a frequency range from 30 MHz up to 1 000 MHz and in a dynamic range up to 130 dB.

Prüfverfahren für metallische Kommunikationskabel -- Teil 4-2: Elektromagnetische Verträglichkeit (EMV) - Schirm- und Kopplungsdämpfung - Verfahren mit gespeister Zange

Méthodes d'essai des câbles métalliques de communication -- Partie 4-2: Compatibilité électromagnétique (CEM) - Affaiblissement d'écran et de couplage - Méthode de la pince à injection

décrit la méthode d'essai de la pince à injection qui détermine l'affaiblissement d'écran (as) des câbles coaxiaux et l'affaiblissement de couplage (ac)des câbles de données, blindés symétriques ou non blindés, dans la plage de fréquence de 30 MHz à 1 000 MHz et dans la plage dynamique jusqu'à 130 dB.

Metallic communication cables test methods - Part 4-2: Electromagnetic compatibility (EMC) - Screening and coupling attenuation - Injection clamp method (IEC 62153-4-2:2003)

General Information

• Status: Published
• Publication Date: 31-Mar-2004
• ICS: 33.100.01 - Electromagnetic compatibility in general
• ICS: 33.120.10 - Coaxial cables. Waveguides
• Technical Committee: iTEL - Communication cables
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Apr-2004
• Due Date: 01-Apr-2004
• Completion Date: 01-Apr-2004
• Ref Project: EN 62153-4-2:2004 - Metallic communication cables test methods - Part 4-2: Electromagnetic compatibility (EMC) - Screening and coupling attenuation - Injection clamp method

Standards Content (Sample)

SLOVENSKI SIST EN 62153-4-2:2004

STANDARD
april 2004
Metallic communication cables test methods - Part 4-2: Electromagnetic
compatibility (EMC) - Screening and coupling attenuation - Injection clamp method
(IEC 62153-4-2:2003)
ICS 33.100.01; 33.120.10 Referenčna številka
SIST EN 62153-4-2:2004(en)
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

---------------------- Page: 1 ----------------------

EUROPEAN STANDARD EN 62153-4-2
NORME EUROPÉENNE
EUROPÄISCHE NORM January 2004

ICS 33.100;33.120.10


English version


Metallic communication cables test methods
Part 4-2: Electromagnetic compatibility (EMC) –
Screening and coupling attenuation –
Injection clamp method
(IEC 62153-4-2:2003)


Méthodes d'essai des câbles métalliques Prüfverfahren für metallische
de communication Kommunikationskabel
Partie 4-2: Compatibilité Teil 4-2: Elektromagnetische
électromagnétique (CEM) - Verträglichkeit (EMV) –
Affaiblissement d'écran et de couplage - Schirm- und Kopplungsdämpfung -
Méthode de la pince à injection Verfahren mit gespeister Zange
(CEI 62153-4-2:2003) (IEC 62153-4-2:2003)


This European Standard was approved by CENELEC on 2003-12-01. 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 Central Secretariat 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 Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland
and United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels


© 2004 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 62153-4-2:2004 E

---------------------- Page: 2 ----------------------

EN 62153-4-2:2004 - 2 -
Foreword
The text of document 46A/560/FDIS, future edition 1 of IEC 62153-4-2, prepared by SC 46A, Coaxial
cables, of IEC TC 46, Cables, wires, waveguides, r.f. connectors, r.f. and microwave passive
components and accessories, was submitted to the IEC-CENELEC parallel vote and was approved by
CENELEC as EN 62153-4-2 on 2003-12-01.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2004-09-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2006-12-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 62153-4-2:2003 was approved by CENELEC as a
European Standard without any modification.
__________

---------------------- Page: 3 ----------------------

- 3 - EN 62153-4-2:2004
Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications
The following referenced documents are indispensable for the application 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 When an international publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
Publication Year Title EN/HD Year
1)
IEC 61000-4-6 - Electromagnetic compatibility (EMC) - -
Part 4-6: Testing and measurement
techniques - Immunity to conducted
disturbances, induced by radio-
frequency fields

ITU-T 1996 Transmission aspects of unbalance - -
Recommendation about earth
G.117

ITU-T 1999 Measuring arrangements to assess the - -
Recommendation degree of unbalance about earth
O.9



1)
Undated reference.

---------------------- Page: 4 ----------------------

NORME CEI
INTERNATIONALE IEC
62153-4-2
INTERNATIONAL
Première édition
STANDARD
First edition
2003-10
Méthodes d'essai des câbles métalliques
de communication –
Partie 4-2:
Compatibilité électromagnétique (CEM) –
Affaiblissement d'écran et de couplage –
Méthode de la pince à injection
Metallic communication cables test methods –
Part 4-2:
Electromagnetic compatibility (EMC) –
Screening and coupling attenuation –
Injection clamp method
© IEC 2003 Droits de reproduction réservés ⎯ Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in any
utilisée sous quelque forme que ce soit et par aucun procédé, form or by any means, electronic or mechanical, including
électronique ou mécanique, y compris la photocopie et les photocopying and microfilm, without permission in writing from
microfilms, sans l'accord écrit de l'éditeur. the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: [phone] Telefax: [phone] E-mail: [e-mail]  Web: www.iec.ch
CODE PRIX
S
Commission Electrotechnique Internationale PRICE CODE
International Electrotechnical Commission
ɆɟɠɞɭɧɚɪɨɞɧɚɹɗɥɟɤɬɪɨɬɟɯɧɢɱɟɫɤɚɹɄɨɦɢɫɫɢɹ
Pour prix, voir catalogue en vigueur
For price, see current catalogue

---------------------- Page: 5 ----------------------

– 3 – 62153-4-2 © IEC:2003
CONTENTS
FOREWORD . 5
1 Scope . 9
2 Normative references. 9
3 Terms, definitions and symbols. 9
3.1 Electrical symbols. 9
3.2 Definitions .11
4 Principle .13
4.1 Injecting mode .13
5 Procedure.15
5.1 Test equipment.15
5.2 Preparation of test sample .17
5.2.1 Effective cable length.17
5.2.2 Total cable length .17
5.2.3 Inner termination of balanced cables.17
5.2.4 Inner termination of coaxial (unbalanced) cables .19
5.2.5 Connection of the screen .19
5.2.6 Height of CUT over the ground plane .19
5.2.7 Termination plates .19
5.2.8 Complete preparation .21
5.3 Calibration procedure .21
5.3.1 Connecting coaxial cables .21
5.3.2 Electromagnetic injection clamp.21
5.3.3 Balun (if applicable) .23
5.4 Measuring procedure .23
6 Evaluation of the test results.25
7 Requirement .25
Figure 1 – Inner system of a screened/unscreened twisted pair cable .27
Figure 2 – Outer system in case of unscreened twisted pair cable.27
Figure 3 – Printed circuit with RF-SMD-resistors for inner system matching .29
Figure 4 – Termination plate for near-end and far-end matching.29
Figure 5 – Termination-plate panel at the near end .31
Figure 6 – Termination-plate panel at the far end .33
Figure 7 – Preparation of test sample.35
Figure 8 – Operational attenuation of connecting coaxial cables .37
Figure 9 – Set-up for reference attenuation a .39
ref
Figure 10 – Set-up for reference attenuation a .39
clamp, ref
Figure 11 – Individual operational attenuation of three (identical) baluns.41
Figure 12 – Two baluns in series for a non-cyclical substitution calibration procedure.41
Figure 13 – Deviation of attenuation as possible error source .43
Figure 14 – Complete test set-up .43
Table 1 – Electrical symbols. 9

---------------------- Page: 6 ----------------------

– 5 – 62153-4-2 © IEC:2003
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
METALLIC COMMUNICATION CABLE TEST METHODS –
Part 4-2: Electromagnetic compatibility (EMC) –
Screening and coupling attenuation –
Injection clamp method
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 provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
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 62153-4-2 has been prepared by subcommittee 46A: Coaxial
cables, of IEC technical committee 46: Cables, wires, waveguides, r.f. connectors, r.f. and
microwave passive components and accessories.
The text of this standard is based on the following documents:
FDIS Report on voting
46A/560/FDIS 46A/578/RVD
Full information on the voting for the approval of this standard 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.

---------------------- Page: 7 ----------------------

– 7 – 62153-4-2 © IEC:2003
The committee has decided that the contents of this publication will remain unchanged until
2008. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.

---------------------- Page: 8 ----------------------

– 9 – 62153-4-2 © IEC:2003
METALLIC COMMUNICATION CABLE TEST METHODS –
Part 4-2: Electromagnetic compatibility (EMC) –
Screening and coupling attenuation –
Injection clamp method
1 Scope
This part of IEC 62153 describes the injection clamp test method which determines the
screening attenuation (a ) of coaxial cables and the coupling attenuation (a ) of balanced
s c
shielded or unshielded data cables in a frequency range from 30 MHz up to 1 000 MHz and in
a dynamic range up to 130 dB.
NOTE 1 Contrary to the absorbing clamp method, the method described here uses an injection clamp according
to IEC 61000-4-6.
NOTE 2 Due to the low operational attenuation of the injection clamp, the coupling attenuation and the screening
attenuation can be determined in a dynamic range up to 130 dB with common measuring equipment. Using an
amplifier the dynamic range can be additionally improved.
2 Normative references
The following referenced documents are indispensable for the application 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 61000-4-6: Electromagnetic compatibility (EMC) – Part 4-6: Testing and measurement
techniques – Immunity to conducted disturbances, induced by radio-frequency fields
ITU-T Recommendation G.117:1996, Transmission aspects of unbalance about earth
ITU-T Recommendation O.9:1999, Measuring arrangements to assess the degree of
unbalance about earth
3 Terms, definitions and symbols
For the purposes of this document, the following terms, definitions and symbols apply.
3.1 Electrical symbols
Table 1 – Electrical symbols
a Operational attenuation of the balun transformer
balun
a Operational attenuation of the connecting coaxial cables
cable12
a Coupling attenuation
c
a Screening attenuation
s
a Operational attenuation of the test set-up
cal
Operational attenuation of the test set-up for far end
a
cal,far
a
Operational attenuation of the test set-up for near end
cal,near
a Operational attenuation of the clamp
clamp
a Reference attenuation of the clamp during calibration
clamp,ref
a Ferrite common-mode rejection
ferrite

---------------------- Page: 9 ----------------------

– 11 – 62153-4-2 © IEC:2003
a Unbalance attenuation of the balun transformers
nm
a
Unbalance attenuation of the CUT
un
a Operational attenuation of the CUT
CUTlong
a Reference attenuation of the calibration set-up
ref
CUT Cable under test
d Screen diameter
Relative dielectric permittivity of the outer system
ε
r,outer-system
f Frequency
range
h Height of the cable centre above groundplane
P Feeding power into clamp
in,clamp
P
Max. received power at the inner system
1,max
P Received power at the inner system for the near-end position
1,near
P Received power at the inner system for the far-end position
1,far
P
Max. feeding power of the outer system
2com,max
P Feeding power of outer system for the near-end position
2com,near
P Feeding power of outer system for the far-end position
2com,far
R Common-mode impedance
cm
R , R Termination resistors for the inner system
1 2
R
Termination plates (150 Ω in the specified frequency range)
term
Z Characteristic impedance of the inner system
CUT,inn
Z Characteristic impedance of the outer system
CUT,out
Z Input impedance of the clamp (50 Ω)
in,clamp
Z
Output impedance of the clamp (150 Ω)
out,clamp
Z (Z )
Output impedance of the generator (50 Ω)
out,gen o
Z Termination plates (150 Ω in the specified frequency range)
term
3.2 Definitions
3.2.1
inner system
system consisting of the inner conductor and the screen for coaxial lines and of the
differential mode signal-carrying two-core conductor for twisted-pair cables (see Figure 1)
3.2.2
outer system
system consisting of the screen and the surrounding for coaxial lines, and represented by
the common-mode propagation between the two-core conductor and the surrounding for
unscreened twisted-pair cables and by the screen of the CUT and the surrounding
for screened twisted-pair cables (see Figure 2)
3.2.3
screening and coupling attenuation
relation between the transmitted power through the conductor(s) and the maximum radiated
peak power, conducted and generated by the excited common-mode currents or vice versa

---------------------- Page: 10 ----------------------

– 13 – 62153-4-2 © IEC:2003
3.2.4
coupling attenuation for coaxial cables
for coaxial cables coupling attenuation a is the same as screening attenuation a
c s
Taking into account the maximum effect of either near- or far-end surface waves, the coupling
attenuation a or screening attenuation a is specified by
c s
P2com, max
§ ·
a =a =20log
¨ ¸
c s 10
P1,max
© ¹
where
P is the maximum received power at the inner system;
1,max
P is the maximum feeding power of the outer system.
2com,max
3.2.5
coupling attenuation for balanced cables
for screened balanced cables the coupling attenuation a is the sum of screening attenuation
c
a and unbalance attenuation a .
s un
a =a +a
c s un
For unscreened balanced cables the coupling attenuation a is equal to the unbalance
c
attenuation a .
un
a =a
c un
4 Principle
Using an injection clamp according to IEC 61000-4-6, it is equiva
...