IEC 62153-4-14:2012

IEC 62153-4-14 ®
Edition 1.0 2012-05
INTERNATIONAL
STANDARD
colour
inside
Metallic communication cable test methods –
Part 4-14: Electromagnetic compatibility (EMC) – Coupling attenuation of cable
assemblies (field conditions) absorbing clamp method

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IEC 62153-4-14 ®
Edition 1.0 2012-05
INTERNATIONAL
STANDARD
colour
inside
Metallic communication cable test methods –

Part 4-14: Electromagnetic compatibility (EMC) – Coupling attenuation of cable

assemblies (field conditions) absorbing clamp method

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
P
ICS 33.040.20 ISBN 978-2-83220-086-5

– 2 – 62153-4-14 © IEC:2012(E)
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Test method . 6
4.1 Equipment . 6
4.1.1 General . 6
4.1.2 Balun requirements . 6
4.1.3 Extension cable requirements . 7
4.2 Test sample . 8
4.2.1 General . 8
4.2.2 Tested length . 8
4.2.3 Preparation of test sample . 8
4.3 Calibration procedure . 9
4.4 Test set-up . 9
4.4.1 General . 9
4.4.2 Test set-up verification . 10
4.5 Measuring procedure . 11
4.5.1 General . 11
4.5.2 Example of link measurement . 11
5 Expression of test results . 12
6 Test report. 12
6.1 General . 12
6.2 Evaluation of test results . 13
Bibliography . 16

Figure 1 – Measurement of surface wave at one end of a link or channel . 6
Figure 2 – Termination of link or channel or applied extension cable . 9
Figure 3 – Example of a three-connector link configuration as defined in
ISO/IEC 11801 . 11
Figure 4 – Wall outlet end measurement . 12
Figure 5 – Typical measurement of an unscreened channel – Coupling attenuation,
A is 43 dB . 14
Figure 6 – Typical measurement of a screened balanced channel – Coupling
attenuation, A is 57 dB . 14
Figure 7 – Double wall outlet, right port (without connected screen) – Coupling
attenuation, A is 44,8 dB . 15
Figure 8 – Double wall outlet, left port (with connected screen) – Coupling attenuation,
A is 61,5 dB . 15

Table 1 – Balun performance characteristics . 7

62153-4-14 © IEC:2012(E) – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
METALLIC COMMUNICATION CABLE TEST METHODS –

Part 4-14: Electromagnetic compatibility (EMC) –
Coupling attenuation of cable assemblies
(field conditions) 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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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 62153-4-14 has been prepared by 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
46/400/FDIS 46/415/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.

– 4 – 62153-4-14 © IEC:2012(E)
A list of all the parts in the IEC 62153 series, published under the general title: Metallic
communication cable test methods, can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this standard may be issued at a later date.

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.
62153-4-14 © IEC:2012(E) – 5 –
METALLIC COMMUNICATION CABLE TEST METHODS –

Part 4-14: Electromagnetic compatibility (EMC) –
Coupling attenuation of cable assemblies
(field conditions) absorbing clamp method

1 Scope
This part of IEC 62153 gives the in-field test method that is used to determine the coupling
attenuation for installed links and channels used in analogue and digital communication
systems.
This method is used to determine the attenuation of disturbing power to signal power in a
cabling system, and vice versa. This determines the influence from cabling on the EMC
performance of a system.
NOTE 1 The coupling attenuation of installed links and channels is dependent upon the performance of the
cabling components (balance and screening if applicable), workmanship (especially termination of screens) and
earthing and grounding. This procedure determines the overall effect of these parameters.
NOTE 2 This method cannot be used for verification of compliance with emission and immunity EMC standards
for the complete system, including active components.
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
IEC 61196-1, Coaxial communication cables – Part 1: Generic specification – General,
definitions and requirements
IEC 62153-4-5:2006, Metallic communication cable test methods – Part 4-5: Electromagnetic
Compatibility (EMC) – Coupling or screening attenuation – Absorbing clamp method
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IE
...