ISO 19642-11:2023
(Main)Road vehicles — Automotive cables — Part 11: Dimensions and requirements for coaxial RF cables with a specified analogue bandwidth up to 6 GHz (20 GHz)
Road vehicles — Automotive cables — Part 11: Dimensions and requirements for coaxial RF cables with a specified analogue bandwidth up to 6 GHz (20 GHz)
This document specifies the dimensions and requirements for coaxial radio frequency (RF) cables with a specified analogue bandwidth up to 6 GHz (for special cases up to 20 GHz) intended for use in road vehicle applications where the nominal system voltage is 30 V a.c. or 60 V d.c.
Véhicules routiers — Câbles automobiles — Partie 11: Dimensions et exigences des câbles RF coaxiaux de bande passante analogique spécifiée jusqu'à 6 GHz (20 GHz)
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INTERNATIONAL ISO
STANDARD 19642-11
First edition
2023-05
Road vehicles — Automotive cables —
Part 11:
Dimensions and requirements for
coaxial RF cables with a specified
analogue bandwidth up to 6 GHz (20
GHz)
Véhicules routiers — Câbles automobiles —
Partie 11: Dimensions et exigences des câbles RF coaxiaux de bande
passante analogique spécifiée jusqu'à 6 GHz (20 GHz)
Reference number
ISO 19642-11:2023(E)
© ISO 2023
---------------------- Page: 1 ----------------------
ISO 19642-11:2023(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2023
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
© ISO 2023 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 19642-11:2023(E)
Contents Page
Foreword . vi
Introduction .vii
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Specifications . 2
4.1 General test conditions . 2
4.2 Voltage rating . 2
4.3 Temperature classes . 2
4.4 Cable construction . 2
4.5 Safety concerns . 2
4.5.1 Core . 2
4.5.2 Dielectric core . 3
4.5.3 Screen . 3
4.5.4 Sheath . 3
4.6 Cable designation . 3
4.7 Testing of representative cable constructions . 3
4.8 Reference and requirements for the tests according ISO 19642-2 . 4
4.9 General remark on requirements . 4
5 Requirements for the conductor and dielectric . 4
5.1 General . 4
5.2 Dimensional tests . . 4
5.2.1 Dielectric core outside diameter . 4
5.2.2 Insulation thickness . 4
5.2.3 Conductor diameter . 4
5.2.4 Cross sectional area . . 4
5.2.5 In-process dielectric outside diameter . 4
5.3 Electrical tests . 5
5.3.1 Conductor resistance . . 5
5.3.2 Determination of temperature coefficients . 5
5.3.3 Withstand voltage . 5
5.3.4 Withstand voltage after environmental testing . 5
5.3.5 Insulation faults . 5
5.3.6 Insulation volume resistivity . 5
5.4 Mechanical tests . 5
5.4.1 Strip force (A) of dielectric . 5
5.4.2 Abrasion test . 5
5.4.3 Breaking force of the finished cable. 5
5.4.4 Cyclic bending test . 6
5.4.5 Flexibility test . 6
5.5 Environmental tests . 6
5.5.1 Test specimen preparation and winding tests . 6
5.5.2 Long term heat ageing, 3 000 h, at temperature class rating . 6
5.5.3 Short term heat ageing, 240 h at temperature class rating + 25 °C . 6
5.5.4 Thermal overload, 6 h at temperature class rating + 50 °C . . 6
5.5.5 Pressure test at high temperature . 6
5.5.6 Shrinkage by heat . 6
5.5.7 Low temperature winding . 6
5.5.8 Cold impact . 6
5.5.9 Temperature and humidity cycling . 6
5.5.10 Resistance to hot water . 6
5.5.11 Resistance to liquid chemicals . 6
iii
© ISO 2023 – All rights reserved
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ISO 19642-11:2023(E)
5.5.12 Durability of cable marking . 6
5.5.13 Stress cracking resistance . 7
5.5.14 Resistance to ozone . 7
5.5.15 Resistance to flame propagation . 7
6 Requirements for the screened and sheathed coaxial RF cable . 7
6.1 General . 7
6.2 Dimensional tests . . 7
6.2.1 Cable outside and inner layer diameters . 7
6.2.2 Ovality of sheath . 7
6.2.3 Thickness of sheath. 7
6.2.4 In-process cable outside diameter . 8
6.2.5 Lay length . 8
6.3 Electrical tests . 8
6.3.1 Electrical continuity . 8
6.3.2 Withstand voltage at final inspection . 8
6.3.3 Screening effectiveness . 8
6.3.4 Sheath fault on screened cables . 9
6.3.5 General information on electrical test setups of unscreened cables . 9
6.3.6 General information on low frequency electrical tests . 9
6.3.7 Resistance unbalance . 10
6.3.8 Capacitance . 10
6.3.9 Inductance . . 10
6.3.10 General information on radio frequency (RF) electrical tests . 10
6.3.11 Velocity of propagation . . 10
6.3.12 Characteristic impedance in frequency domain (CIF). 10
6.3.13 Characteristic impedance in time domain (CIT) . 11
6.3.14 Insertion loss, IL. 11
6.3.15 Return loss, RL .12
6.3.16 Unbalance attenuations .12
6.3.17 Near end crosstalk, NEXT .12
6.3.18 Far end crosstalk, FEXT .12
6.3.19 PS alien near end crosstalk, PS ANEXT – exogenous crosstalk .12
6.3.20 PS attenuation to alien far-end crosstalk ratio, PS AACR-F - exogenous
crosstalk . 12
6.4 Mechanical tests . 12
6.4.1 Strip force (C) of sheath .12
6.4.2 Cyclic bending .12
6.4.3 Flexibility .12
6.4.4 Cyclic bending test for RF cables .12
6.4.5 Dynamic bending tests for RF cables . 13
6.4.6 Test for assessment of minimum bending radius.13
6.4.7 Strip force (B) of screen . 14
6.4.8 Abrasion test on sheath . 14
6.5 Environmental tests . 14
6.5.1 Test specimen preparation and winding tests . 14
6.5.2 Long term heat ageing, 3 000 h at temperature class rating . 14
6.5.3 Short term heat ageing, 240 h at temperature class rating + 25 °C .15
6.5.4 Thermal overload, 6 h at temperature class rating + 50 °C . .15
6.5.5 Pressure test at high temperature . 15
6.5.6 Shrinkage of sheath by heat . 15
6.5.7 Low temperature winding . 15
6.5.8 Cold impact . 15
6.5.9 Temperature and humidity cycling . 16
6.5.10 Resistance to liquid chemicals . 16
6.5.11 Durability of sheath marking . 16
6.5.12 Resistance to ozone . 16
6.5.13 Artificial weathering . 16
6.5.14 Resistance to flame propagation . 16
iv
© ISO 2023 – All rights reserved
---------------------- Page: 4 ----------------------
ISO 19642-11:2023(E)
7 Test overview tables .17
8 Preferred cable types .21
8.1 Parameter tables . 21
8.2 Insertion loss IL (tables and diagrams), bending test sequences . 26
8.2.1 CX174a . 26
8.2.2 CX174b .28
8.2.3 CX174c .29
8.2.4 CX174d .30
8.2.5 CX174e . 32
8.2.6 CX58a .34
8.2.7 CX58b . 35
8.2.8 CX58c . 36
8.2.9 CX31a .38
8.2.10 CX44a, CX44b . 39
8.2.11 CX44c .40
8.2.12 CX501a . . 42
8.2.13 CX501b . 43
8.2.14 CX501c .44
8.2.15 CX502a.46
8.2.16 CX502b . 47
8.2.17 CX502c .48
8.2.18 CX502d . 50
8.2.19 CX751a . 51
8.2.20 CX751b . 52
8.2.21 CX751c .54
Bibliography .56
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© ISO 2023 – All rights reserved
---------------------- Page: 5 ----------------------
ISO 19642-11:2023(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO document should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
ISO draws attention to the possibility that the implementation of this document may involve the use
of (a) patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed
patent rights in respect thereof. As of the date of publication of this document, ISO had not received
notice of (a) patent(s) which may be required to implement this document. However, implementers are
cautioned that this may not represent the latest information, which may be obtained from the patent
database available at www.iso.org/patents. ISO shall not be held responsible for identifying any or all
such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to
the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see
www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 32,
Electrical and electronic components and general system aspects.
A list of all parts in the ISO 19642 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
vi
© ISO 2023 – All rights reserved
---------------------- Page: 6 ----------------------
ISO 19642-11:2023(E)
Introduction
This document has been added to existing standards in the ISO 19642 series. It was prepared following
a joint resolution to improve the general structure of the ISO automotive electric cable standards. This
new structure adds more clarity and, by defining a new standard family, opens up the standard for
future amendments.
Many other standards currently refer to ISO 6722-1, ISO 6722-2 and ISO 14572. Therefore, these
standards will stay valid at least until the next scheduled systematic review and will be replaced later
on by the ISO 19642 series.
For new automotive cable projects customers and suppliers are advised on using the ISO 19642 series.
vii
© ISO 2023 – All rights reserved
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INTERNATIONAL STANDARD ISO 19642-11:2023(E)
Road vehicles — Automotive cables —
Part 11:
Dimensions and requirements for coaxial RF cables with a
specified analogue bandwidth up to 6 GHz (20 GHz)
WARNING — The use of this document may involve hazardous materials, operations, and
equipment. This document does not purport to address all of the safety concerns, if any, associated
with its use. It is the responsibility of the user of this document to establish appropriate safety
practices and determine the applicability of regulatory limitations prior to use.
1 Scope
This document specifies the dimensions and requirements for coaxial radio frequency (R
...
DRAFT INTERNATIONAL STANDARD
ISO/DIS 19642-11
ISO/TC 22/SC 32 Secretariat: JISC
Voting begins on: Voting terminates on:
2022-07-19 2022-10-11
Road vehicles — Automotive cables —
Part 11:
Dimensions and requirements for coaxial RF cables with a
specified analogue bandwidth up to 6 GHz (20 GHz)
Véhicules routiers — Câbles automobiles —
Partie 11: Dimensions et exigences des câbles RF coaxiaux de bande passante analogique spécifiée jusqu'à
6 GHz (20 GHz)
ICS: 43.040.10
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
This document is circulated as received from the committee secretariat.
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 19642-11:2022(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION. © ISO 2022
---------------------- Page: 1 ----------------------
ISO/DIS 19642-11:2022(E)
DRAFT INTERNATIONAL STANDARD
ISO/DIS 19642-11
ISO/TC 22/SC 32 Secretariat: JISC
Voting begins on: Voting terminates on:
2022-06-16 2022-09-08
Road vehicles — Automotive cables —
Part 11:
Dimensions and requirements for coaxial RF cables with a
specified analogue bandwidth up to 6 GHz (20 GHz)
Véhicules routiers — Câbles automobiles —
Partie 11: Dimensions et exigences des câbles RF coaxiaux de bande passante analogique spécifiée jusqu'à
6 GHz (20 GHz)
ICS: 43.040.10
COPYRIGHT PROTECTED DOCUMENT
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
© ISO 2022
THEREFORE SUBJECT TO CHANGE AND MAY
This document is circulated as received from the committee secretariat.
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
NOT BE REFERRED TO AS AN INTERNATIONAL
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on STANDARD UNTIL PUBLISHED AS SUCH.
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
IN ADDITION TO THEIR EVALUATION AS
or ISO’s member body in the country of the requester. BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
ISO copyright office
USER PURPOSES, DRAFT INTERNATIONAL
CP 401 • Ch. de Blandonnet 8
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
CH-1214 Vernier, Geneva
POTENTIAL TO BECOME STANDARDS TO
Phone: +41 22 749 01 11
WHICH REFERENCE MAY BE MADE IN
Reference number
Email: copyright@iso.org
NATIONAL REGULATIONS.
Website: www.iso.org ISO/DIS 19642-11:2022(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
Published in Switzerland
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
ii
© ISO 2022 – All rights reserved
PROVIDE SUPPORTING DOCUMENTATION. © ISO 2022
---------------------- Page: 2 ----------------------
ISO/DIS 19642-11:2022(E)
Contents Page
Foreword . vi
Introduction .vii
1 Scope . 1
2 Normative References .1
3 Terms and definitions . 1
4 Specifications . 2
4.1 General test conditions . 2
4.2 Voltage rating . 2
4.3 Temperature classes . 2
4.4 Cable construction . 2
4.5 Safety concerns . 2
4.5.1 Core . 2
4.5.2 Dielectric core . 3
4.5.3 Screen . 3
4.5.4 Sheath . 3
4.6 Cable designation . 3
4.7 Testing of representative cable constructions . 3
4.8 Reference and requirements for the tests according ISO 19642-2 . 4
4.9 General remark on requirements . 4
5 Requirements for the conductor and dielectric . 4
5.1 General . 4
5.2 Dimensional tests . . 4
5.2.1 Dielectric core outside diameter . 4
5.2.2 Insulation thickness . 4
5.2.3 Conductor diameter . 4
5.2.4 Cross sectional area . . 4
5.2.5 In-process dielectric outside diameter . 4
5.3 Electrical tests . 5
5.3.1 Conductor resistance . . 5
5.3.2 Determination of temperature coefficients . 5
5.3.3 Withstand Voltage . . 5
5.3.4 Withstand voltage after environmental testing . 5
5.3.5 Insulation faults . 5
5.3.6 Insulation volume resistivity . 5
5.4 Mechanical tests . 5
5.4.1 Strip force (A) of dielectric . 5
5.4.2 Abrasion test . 5
5.4.3 Breaking force of the finished cable. 5
5.4.4 Cyclic bending test . 6
5.4.5 Flexibility test . 6
5.5 Environmental tests . 6
5.5.1 Test specimen preparation and winding tests . 6
5.5.2 Long term heat ageing, 3 000 h, at temperature class rating . 6
5.5.3 Short term heat ageing, 240 h at temperature class rating +25 °C . 6
5.5.4 Thermal overload, 6 h at temperature class rating + 50 °C . . 6
5.5.5 Pressure test at high temperature . 6
5.5.6 Shrinkage by heat . 6
5.5.7 Low temperature winding . 6
5.5.8 Cold impact . 6
5.5.9 Temperature and humidity cycling . 6
5.5.10 Resistance to hot water . 6
5.5.11 Resistance to liquid chemicals . 6
iii
© ISO 2022 – All rights reserved
---------------------- Page: 3 ----------------------
ISO/DIS 19642-11:2022(E)
5.5.12 Durability of cable marking . 6
5.5.13 Stress cracking resistance . 7
5.5.14 Resistance to ozone . 7
5.5.15 Resistance to flame propagation . 7
6 Requirements for the screened and sheathed coaxial RF cable . 7
6.1 General . 7
6.2 Dimensional tests . . 7
6.2.1 Cable outside and inner layer diameters . 7
6.2.2 Ovality of sheath . 7
6.2.3 Thickness of sheath. 7
6.2.4 In-process cable outside diameter . 8
6.2.5 Lay length . 8
6.3 Electrical tests . 8
6.3.1 Electrical continuity . 8
6.3.2 Withstand voltage at final inspection . 8
6.3.3 Screening effectiveness . 8
6.3.4 Sheath fault on screened cables . 9
6.3.5 General information on electrical test setups of unscreened cables . 9
6.3.6 General information on low frequency electrical tests . 9
6.3.7 Resistance unbalance . 10
6.3.8 Capacitance . 10
6.3.9 Inductance . . 10
6.3.10 General information on high (RF) frequency electrical tests . 10
6.3.11 Velocity of Propagation . 10
6.3.12 Characteristic impedance in frequency domain (CIF). 10
6.3.13 Characteristic impedance in time domain (CIT) . 11
6.3.14 Insertion loss, IL. 11
6.3.15 Return loss, RL .12
6.3.16 Unbalance attenuations .12
6.3.17 Near end crosstalk, NEXT .12
6.3.18 Far end crosstalk, FEXT .12
6.3.19 PS alien near end crosstalk, PS ANEXT – exogenous crosstalk .12
6.3.20 PS attenuation to alien crosstalk ratio, far end crosstalk, PS AACR-F -
exogenous crosstalk .12
6.4 Mechanical tests . 12
6.4.1 Strip force (C) of sheath .12
6.4.2 Cyclic bending .12
6.4.3 Flexibility .12
6.4.4 Cyclic bending test for RF cables .12
6.4.5 Dynamic bending tests for RF cables . 13
6.4.6 Test for assessment of minimum bending radius.13
6.4.7 Strip force (B) of screen . 14
6.4.8 Abrasion test on sheath . 14
6.5 Environmental tests . 14
6.5.1 Test specimen preparation and winding tests . 14
6.5.2 Long term heat ageing, 3 000 h at Temperature class rating . 14
6.5.3 Short term heat ageing, 240 h at Temperature class rating + 25 °C .15
6.5.4 Thermal overload, 6 h at Temperature class rating + 50 °C .15
6.5.5 Pressure test at high temperature . 15
6.5.6 Shrinkage of sheath by heat . 15
6.5.7 Low temperature winding . 15
6.5.8 Cold impact . 15
6.5.9 Temperature and humidity cycling . 15
6.5.10 Resistance to liquid chemicals . 16
6.5.11 Durability of sheath marking . 16
6.5.12 Resistance to ozone . 16
6.5.13 Artificial weathering . 16
6.5.14 Resistance to flame propagation . 16
iv
© ISO 2022 – All rights reserved
---------------------- Page: 4 ----------------------
ISO/DIS 19642-11:2022(E)
7 Test overview tables .16
8 Preferred cable types .20
8.1 Parameter Tables . 20
8.2 Insertion loss IL (tables and diagrams), bending test sequences . 24
8.2.1 CX174a . 25
8.2.2 CX174b . 26
8.2.3 CX174c . 26
8.2.4 CX174d . 27
8.2.5 CX174e .28
8.2.6 CX58a .29
8.2.7 CX58b . 29
8.2.8 CX58c . 30
8.2.9 CX31a .30
8.2.10 CX44a, CX44b . 31
8.2.11 CX44c . 32
8.2.12 CX501a . . 32
8.2.13 CX501b . 33
8.2.14 CX501c . 33
8.2.15 CX502a.34
8.2.16 CX502b .34
8.2.17 CX502c . 35
8.2.18 CX502d . 35
8.2.19 CX751a .36
8.2.20 CX751b . 36
8.2.21 CX751c . 37
v
© ISO 2022 – All rights reserved
---------------------- Page: 5 ----------------------
ISO/DIS 19642-11:2022(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to
the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see
www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 32,
Electrical and electronic components and general system aspects.
A list of all parts in the ISO 19642 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete lis
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