IEC 62153-4-16:2016
(Main)Metallic communication cable test methods - Part 4-16: Electromagnetic compatibility (EMC) - Extension of the frequency range to higher frequencies for transfer impedance and to lower frequencies for screening attenuation measurements using the triaxial set-up
Metallic communication cable test methods - Part 4-16: Electromagnetic compatibility (EMC) - Extension of the frequency range to higher frequencies for transfer impedance and to lower frequencies for screening attenuation measurements using the triaxial set-up
IEC 62153-4-16:2016(E) describes a method to extrapolate the test results of transfer impedance to higher frequencies and the test results of screening attenuation to lower frequencies when measured with the triaxial set-up according to IEC 62153-4-3 (method B) respectively IEC 62153-4-4. A similar approach to extrapolate the test results of transfer impedance to higher frequencies was already described in IEC 61196-1:1995 Subclause 12.2. This method is applicable for homogenous screens, i.e. screens having a transfer impedance directly proportional to length. The transfer impedance may have any frequency behaviour, i.e. it could have a behaviour where it does not increase with 20 dB per decade as observed for screens made of a foil and a braid.
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IEC 62153-4-16 ®
Edition 1.0 2016-10
INTERNATIONAL
STANDARD
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Metallic communication cable test methods –
Part 4-16: Electromagnetic compatibility (EMC) – Extension of the frequency
range to higher frequencies for transfer impedance and to lower frequencies for
screening attenuation measurements using the triaxial set-up
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IEC 62153-4-16 ®
Edition 1.0 2016-10
INTERNATIONAL
STANDARD
colour
inside
Metallic communication cable test methods –
Part 4-16: Electromagnetic compatibility (EMC) – Extension of the frequency
range to higher frequencies for transfer impedance and to lower frequencies for
screening attenuation measurements using the triaxial set-up
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.120.10 ISBN 978-2-8322-3707-6
– 2 – IEC 62153-4-16:2016 © IEC 2016
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Acronyms . 5
4 Overview . 6
5 Frequency behaviour of the triaxial set-up . 7
6 Extrapolation of measurement results . 9
7 Determination of the relative dielectric permittivity and impedance . 12
7.1 General . 12
7.2 Influence of the test head . 15
Bibliography . 18
Figure 1 – Simulation of the scattering parameter S (left hand scale) and the
transfer impedance (right hand scale) for a single braid screen. 6
Figure 2 – Magnitude of the frequency behaviour (F) in logarithmic frequency scale for
a coupling length of 0,5 m, respectively 2 m and relative dielectric permittivity of 2,3
and 1,1 for the inner, respectively outer circuit . 9
Figure 3 – Magnitude of the frequency behaviour (F) in linear frequency scale for a
coupling length of 0,5 m, respectively 2 m and relative dielectric permittivity of 2,3 and
1,1 for the inner, respectively outer circuit . 9
Figure 4 – Example for the extrapolation of the transfer impedance of a RG59 type
cable measured with a coupling length of 2 m and assuming relative dielectric
permittivity of 2,3 and 1,1 for the inner, respectively outer circuit . 10
Figure 5 – Example for the extrapolation of the scattering parameter S in logarithmic
frequency scale of a RG59 type cable measured with a coupling length of 0,5 m and
assuming dielectric permittivities of 2,3 and 1,1 for the inner, respectively outer circuit . 11
Figure 6 – Example for the extrapolation of the scattering parameter S in linear
frequency scale of a RG59 type cable measured with a coupling length of 0,5 m and
assuming dielectric permittivities of 2,3 and 1,1 for the inner, respectively outer circuit . 12
Figure 7 – Measurement of S of the outer circuit (tube) having a length of 50 cm . 14
Figure 8 – Example of test head (COMET set-up) . 15
Figure 9 – Example on how to obtain the electrical length of the test head from the S
measurement using a bare copper wire as DUT (COMET set-up) . 16
Figure 10 – Example for an RG58 type cable in 2 m triaxial set-up (COMET) . 17
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
METALLIC COMMUNICATION CABLE TEST METHODS –
Part 4-16: Electromagnetic compatibility (EMC) –
Extension of the frequency range to higher frequencies
for transfer impedance and to lower frequencies for screening
attenuation measurements using the triaxial set-up
FOREWORD
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International Standard IEC 62153-4-16 has been prepared by IEC technical committee 46:
Cables, wires, waveguides, RF connectors, RF and microwave passive components and
accessories.
The text of this standard is based on the following documents:
FDIS Report on voting
46/615/FDIS 46/622/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.
– 4 – IEC 62153-4-16:2016 © IEC 2016
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all 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 website 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.
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METALLIC COMMUNICATION CABLE TEST METHODS –
Part 4-16: Electromagnetic compatibility (EMC) –
Extension of the frequency range to higher frequencies
for transfer impedance and to lower frequencies for screening
attenuation measurements using the triaxial set-up
1 Scope
This part of IEC 62153 describes a method to extrapolate the test results of transfer
impedance to higher frequencies and the test results of screening attenuation to lower
frequencies when measured with the triaxial set-up according to IEC 62153-4-3 (method B)
respectively IEC 62153-4-4. A similar approach to extrapolate the test results of transfer
impedance to higher frequencies was already described in IEC 61196-1:1995 Subclause 12.2.
This method is applicable for homogenous screens, i.e. screens having a transfer impedance
directly proportional to length. The transfer impedance may have any frequency behaviour,
i.e. it could have a behaviour where it does not increase with 20 dB per decade as observed
for screens made of a foil and a braid.
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 TS 62153-4-1:2014, Metallic communication cable test methods – Part 4-1:
Electromagnetic compatibility (EMC) – Introduction to electromagnetic screening
measurements
IEC 62153-4-3, Metallic communication cable test methods – Part 4-3: Electromagnetic
compatibility (EMC) – Surface transfer impedance – Triaxial method
IEC 62153-4-4, Metallic communication cable test methods – Part 4-4: Electromagnetic
compatibility (EMC) – Test method for measuring of the screening attenuation as up to and
above 3 GHz, triaxial method
IEC 61156-1:2007, Multicore and symmetrical pair/quad cables for digital communications –
Part 1: Generic specification
IEC 61156-1:2007/AMD1:2009
IEC TR 62152:2009, Transmission properties of cascaded two-ports or quadripols –
Background of terms and definitio
...
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