ISO 19642-12:2023

Road vehicles — Automotive cables — Part 12: Dimensions and requirements for unscreened twisted pair RF cables with a specified analogue bandwidth up to 1 GHz

This document specifies the dimensions and requirements for unscreened single twisted pair RF cables with a specified analogue bandwidth up to 1 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 12: Dimensions et exigences pour les câbles RF en paire torsadée non blindés de bande passante analogique spécifiée jusqu'à 1 GHz

General Information

• Status: Published
• Publication Date: 25-May-2023
• ICS: 43.040.10 - Electrical and electronic equipment
• Technical Committee: ISO/TC 22/SC 32 - Electrical and electronic components and general system aspects
• Drafting Committee: ISO/TC 22/SC 32/WG 4 - Automotive electrical cables
• Current Stage: 6060 - International Standard published
• Start Date: 26-May-2023
• Due Date: 11-Mar-2023
• Completion Date: 26-May-2023

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 19642-12
First edition
2023-05
Road vehicles — Automotive cables —
Part 12:
Dimensions and requirements for
unscreened twisted pair RF cables
with a specified analogue bandwidth
up to 1 GHz
Véhicules routiers — Câbles automobiles —
Partie 12: Dimensions et exigences pour les câbles RF en paire
torsadée non blindés de bande passante analogique spécifiée jusqu'à
1 GHz
Reference number
ISO 19642-12:2023(E)
© ISO 2023

---------------------- Page: 1 ----------------------
ISO 19642-12:2023(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: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
  © ISO 2023 – All rights reserved

---------------------- Page: 2 ----------------------
ISO 19642-12:2023(E)
Contents Page
Foreword . vi
Introduction .vii
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Specifications . 1
4.1 General test conditions . 1
4.2 Safety concerns . 2
4.3 Voltage rating . 2
4.4 Temperature classes . 2
4.5 Cable construction . 2
4.5.1 Single Cores . 2
4.5.2 Twisted pair . 3
4.5.3 Separator . 3
4.5.4 Sheath . 3
4.6 Cable designators . 3
4.7 Representative cable elements testing . 4
4.8 Reference and requirements for the tests. 4
4.9 General remark on requirements . 4
5 Requirements for the cable’s dielectric cores . 4
5.1 General . 4
5.2 Dimensional tests . . 4
5.2.1 Cable outside diameter . 4
5.2.2 Insulation thickness . 5
5.2.3 Conductor diameter . 5
5.2.4 Cross sectional area (CSA) . 5
5.2.5 In-process cable outside diameter . 5
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 . 6
5.4 Mechanical tests . 6
5.4.1 Strip force . 6
5.4.2 Abrasion . 6
5.4.3 Breaking force of the finished cable. 6
5.4.4 Cyclic bending . 6
5.4.5 Flexibility . 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 K . 6
5.5.4 Thermal overload, 6 h at temperature class rating + 50 K . 6
5.5.5 Pressure test at high temperature . 6
5.5.6 Shrinkage by heat . 6
5.5.7 Low temperature winding . 7
5.5.8 Cold impact . 7
5.5.9 Temperature and humidity cycling . 7
5.5.10 Resistance to hot water . 7
5.5.11 Resistance to liquid chemicals . 7
iii
© ISO 2023 – All rights reserved

---------------------- Page: 3 ----------------------
ISO 19642-12:2023(E)
5.5.12 Durability of cable marking . 7
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 finished UTP or JUTP cables . 7
6.1 General . 7
6.2 Dimensional tests . . 7
6.2.1 Cable outside diameter for JUTP cables . 7
6.2.2 Ovality of sheath for JUTP cables. 8
6.2.3 Thickness of sheath for JUTP cables . 8
6.2.4 In-process cable outside diameter for JUTP cables . 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 . 8
6.3.5 General information on electrical test setups of unscreened balanced cables . 8
6.3.6 General information on low frequency electrical tests . 8
6.3.7 Resistance unbalance . 8
6.3.8 Capacitance . 9
6.3.9 Inductance . . 9
6.3.10 General information on radio frequency (RF) electrical tests . 9
6.3.11 Velocity of propagation . . 9
6.3.12 Characteristic impedance in frequency domain (CIF). 10
6.3.13 Characteristic impedance in time domain (CIT) . 10
6.3.14 Insertion loss, IL . 10
6.3.15 Return loss, RL . 10
6.3.16 Unbalance attenuations . 10
6.4 Mechanical tests . 10
6.4.1 Strip force of sheath. 10
6.4.2 Cyclic bending . 11
6.4.3 Flexibility . 11
6.4.4 Cyclic bending test for RF cables . 11
6.4.5 Dynamic bending tests for RF cables . 11
6.4.6 Test for assessment of minimum bending radius. 11
6.4.7 Strip force of screen . 11
6.4.8 Abrasion test of sheath . 11
6.5 Environmental tests . 11
6.5.1 Test specimen preparation and winding tests . 11
6.5.2 Long term heat ageing, 3 000 h at temperature class rating . 11
6.5.3 Short term heat ageing, 240 h at temperature class rating + 25 °C .12
6.5.4 Thermal overload, 6 h at temperature class rating + 50 °C . .12
6.5.5 Pressure test at high temperature .12
6.5.6 Shrinkage by heat of sheath .12
6.5.7 Low temperature winding .12
6.5.8 Cold impact . 12
6.5.9 Temperature and humidity cycling .12
6.5.10 Resistance to liquid chemicals .12
6.5.11 Durability of sheath marking .12
6.5.12 Resistance to ozone .12
6.5.13 Artificial weathering .13
6.5.14 Resistance to flame propagation . 13
7 Test overview tables .13
7.1 Test table for single cores . 13
7.2 Test tables for finished cables . 14
8 Cable types .17
iv
  © ISO 2023 – All rights reserved

---------------------- Page: 4 ----------------------
ISO 19642-12:2023(E)
8.1 Cable parameters . 17
8.2 Application requirements . 19
8.2.1 CAN . 19
8.2.2 CAN FD . 19
8.2.3 FlexRay . 19
8.2.4 100BASE-T1 Ethernet . 21
8.2.5 1000BASE-T1 Ethernet . 25
Annex A (normative) Colour combinations .29
Bibliography .30
v
© ISO 2023 – All rights reserved

---------------------- Page: 5 ----------------------
ISO 19642-12:2023(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 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 19642-12:2023(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

---------------------- Page: 7 ----------------------
INTERNATIONAL STANDARD ISO 19642-12:2023(E)
Road vehicles — Automotive cables —
Part 12:
Dimensions and requirements for unscreened twisted pair
RF cables with a specified analogue bandwidth up to 1 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 unscreened single twisted pair RF cables
with a specified analogue bandwidth up to 1 GHz intended for use in road vehicle applications where
the nominal system voltage is 30 V a.c. or 60 V d.c.
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.
ISO 19642-1, Road vehicles — Automotive cables — Part 1: Terminology and design guidelines
1)
ISO 19642-2:— , Road vehicles — Automotive cables — Part 2: Test methods
ISO 19642-3, Road vehicles — Automotive cables — Part 3: Dimensions and requirements for 30 V a.c. or
60 V d.c. single core copper conductor cables
ISO 21111-8:2022, Road vehicles — In-vehicle Ethernet — Part 8: Electrical 100-Mbit/s Ethernet
transmission media, components and tests
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 19642-1 apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
4 Specifications
4.1 General test conditions
The test conditions of ISO 19642-2 shall apply. The descriptions of the tests are found in ISO 19642-2.
This document only contains requirements and specific remarks. The cables shall be submitted to the
tests as specified in Clause 7.
1) Second edition under preparation. Stage at the time of publication: ISO/PRF 19642-2:2023.
1
© ISO 2023 – All rights reserved

---------------------- Page: 8 ----------------------
ISO 19642-12:2023(E)
The single cores of the UTP cable shall meet the requirements of ISO 19642-3. Dimensions and conductor
definitions may be different, but shall be documented in the test report.
If suppliers and customers agree upon modifications or changes to the methods and requirements, it is
required that all the changes and modifications are clearly documented.
NOTE The clause numbers in this document are aligned with the clause numbers in ISO 19642-2. Test clause
numbers not needed in this document are identified as “Test is not required” or “Test is not possible”.
4.2 Safety concerns
See the “Warning" at the beginning of this document.
4.3 Voltage rating
The voltage rating is established by the rating of the cores 30 V a.c. or 60 V d.c.
4.4 Temperature classes
The temperature class rating is established by the rating(s) of the core and sheath. The rating of the
cable shall be equal to the lowest rating of the core and sheath. For details on temperature classes, see
ISO 19642-1.
4.5 Cable construction
For detailed information on preferred constructions please refer to Table 9 and Table 10. Other
constructions and materials are permissible when agreed between customer and supplier.
4.5.1 Single Cores
4.5.1.1 Conductor
4.5.1.1.1 Conductor material
For conductor materials see ISO 19642-3 and for additional materials see Table 1.
Table 1 — Additional permissible conductor materials
Specification Conductor material
Copper magnesium alloy
(CuMg
...

DRAFT INTERNATIONAL STANDARD
ISO/DIS 19642-12
ISO/TC 22/SC 32 Secretariat: JISC
Voting begins on: Voting terminates on:
2022-06-16 2022-09-08
Road vehicles — Automotive cables —
Part 12:
Dimensions and requirements for unscreened twisted pair
RF cables with a specified analogue bandwidth up to 1 GHz
Véhicules routiers — Câbles automobiles —
Partie 12: Dimensions et exigences pour les câbles RF en paire torsadée non blindés de bande passante
analogique spécifiée jusqu'à 1 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 19642-12:2022(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 19642-12:2022(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2022
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: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
  © ISO 2022 – All rights reserved

---------------------- Page: 2 ----------------------
ISO/DIS 19642-12:2022(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 Safety concerns . 2
4.3 Voltage rating . 2
4.4 Temperature classes . 2
4.5 Cable construction . 2
4.5.1 Single Cores . 2
4.5.2 Twisted pair . 3
4.5.3 Separating element . . 3
4.5.4 Sheath . 3
4.6 Cable designators . 3
4.7 Representative cable elements testing . 4
4.8 Reference and requirements for the tests. 4
4.9 General remark on requirements . 4
5 Requirements for the cable’s dielectric cores . 4
5.1 General . 4
5.2 Dimensional tests . . 4
5.2.1 Cable outside diameter . 4
5.2.2 Insulation thickness . 5
5.2.3 Conductor diameter . 5
5.2.4 Cross sectional area (CSA) . 5
5.2.5 In-process cable outside diameter . 5
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 Breakdown shall not occur. . 5
5.3.5 Insulation faults . 5
5.3.6 Insulation volume resistivity . 6
5.4 Mechanical tests . 6
5.4.1 Strip force . 6
5.4.2 Abrasion . 6
5.4.3 Breaking force of the finished cable. 6
5.4.4 Cyclic bending . 6
5.4.5 Flexibility . 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 K . 6
5.5.4 Thermal overload, 6 h at temperature class rating + 50 K . 6
5.5.5 Pressure test at high temperature . 6
5.5.6 Shrinkage by heat . 6
5.5.7 Low temperature winding . 7
5.5.8 Cold impact . 7
5.5.9 Temperature and humidity cycling . 7
5.5.10 Resistance to hot water . 7
5.5.11 Resistance to liquid chemicals . 7
iii
© ISO 2022 – All rights reserved

---------------------- Page: 3 ----------------------
ISO/DIS 19642-12:2022(E)
5.5.12 Durability of cable marking . 7
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 finished UTP or JUTP cables . 7
6.1 General . 7
6.2 Dimensional tests . . 7
6.2.1 Cable outside diameter for JUTP cables . 7
6.2.2 Ovality of sheath for JUTP cables. 8
6.2.3 Thickness of sheath for JUTP cables . 8
6.2.4 In-process cable outside diameter for JUTP cables . 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 . 8
6.3.5 General information on electrical test setups of unscreened cables . 8
6.3.6 General information on low frequency electrical tests . 8
6.3.7 Resistance unbalance . 8
6.3.8 Capacitance . 9
6.3.9 Inductance . . 9
6.3.10 General information on high (RF) frequency electrical tests . 9
6.3.11 Velocity of Propagation . 9
6.3.12 Characteristic impedance in frequency domain (CIF). 9
6.3.13 Characteristic impedance in time domain (CIT) . 10
6.3.14 Insertion loss, IL. 10
6.3.15 Return loss, RL . 10
6.3.16 Unbalance attenuations . 10
6.4 Mechanical tests . 10
6.4.1 Strip force of sheath. 10
6.4.2 Cyclic bending . 10
6.4.3 Flexibility . 11
6.4.4 Cyclic bending test for RF cables . 11
6.4.5 Dynamic bending tests for RF cables . 11
6.4.6 Test for assessment of minimum bending radius. 11
6.4.7 Strip force of screen . 11
6.4.8 Abrasion test of sheath . 11
6.5 Environmental tests . 11
6.5.1 Test specimen preparation and winding tests . 11
6.5.2 Long term heat ageing, 3 000 h at Temperature class rating . 11
6.5.3 Short term heat ageing, 240 h at Temperature class rating + 25 °C .12
6.5.4 Thermal overload, 6 h at Temperature class rating + 50 K °C.12
6.5.5 Pressure test at high temperature .12
6.5.6 Shrinkage by heat of sheath .12
6.5.7 Low temperature winding .12
6.5.8 Cold impact . 12
6.5.9 Temperature and humidity cycling .12
6.5.10 Resistance to liquid chemicals .12
6.5.11 Durability of sheath marking .12
6.5.12 Resistance to ozone .12
6.5.13 Artificial weathering .13
6.5.14 Resistance to flame propagation . 13
7 Test overview tables .13
7.1 Test table for single cores . 13
7.2 Test tables for finished cables . 14
8 Cable types .16
iv
  © ISO 2022 – All rights reserved

---------------------- Page: 4 ----------------------
ISO/DIS 19642-12:2022(E)
8.1 Cable parameters . 16
8.2 Application requirements . 19
8.2.1 CAN . 19
8.2.2 CAN FD . 19
8.2.3 FlexRay . 19
8.2.4 100BASE-T1 Ethernet .20
8.2.5 1000BASE-T1 Ethernet . 23
Annex A (normative) Colour combinations .27
v
© ISO 2022 – All rights reserved

---------------------- Page: 5 ----------------------
ISO/DIS 19642-12:2022(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 listing of these bodies can be found at www.iso.org/members.html.
vi
  © ISO 2022 – All rights reserved

---------------------- Page: 6 ----------------------
ISO/DIS 19642-12:2022(E)
Introduction
This document 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. So 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 2022 – All rights reserved

---------------------- Page: 7 ----------------------
DRAFT INTERNATIONAL STANDARD ISO/DIS 19642-12:2022(E)
Road vehicles — Automotive cables —
Part 12:
Dimensions and requirements for unscreened twisted pair
RF cables with a specified analogue bandwidth up to 1 GHz
WARNING — The use of this International Standard may involve hazardous materials,
operations, and equipment. This standard 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 standard to establish
appropriate safety practices and determine the applicability of regulatory limitations prior to
use.
1 Scope
This International Standard specifies the dimensions and requirements for unscreened single twisted
pair RF cables with a specified analogue bandwidth up to 1 GHz intended for use in road vehicle
applications where the nominal system voltage is 30 V a.c. or 60 V d.c.
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.
ISO 19642-1, Road vehicles — Automotive cables — Terminology and design guidelines
ISO 19642-2, Road vehicles — Automotive cables — Test methods
ISO 19642-3, Road vehicles — Automotive cables — Part 3: Dimensions and requirements for 30 V a.c. or
60 V d.c. single core copper conductor cables
ISO 21111-8, Road vehicles — In-vehicle Ethernet — Part 8: Electrical 100-Mbit/s Ethernet transmission
media, components and tests
ASTM B 452, Standard Specification for Copper-Clad Steel Wire for Electronic Application
ASTM B 105, Standard Specification for Hard-Drawn Copper Alloy Wires for Electric Conductors
PD CEN/TS 13388 Copper and copper alloys. Compendium of compositions and products
3 Terms and definitions
See ISO 19642-1.
1
© ISO 2022 – All rights reserved

---------------------- Page: 8 ----------------------
ISO/DIS 19642-12:2022(E)
4 Specifications
4.1 General test conditions
The test conditions of ISO 19642-2 shall apply. The descriptions of the tests are found in ISO 19642-2.
This part only contains requirements and specific remarks. The cables shall be submitted to the tests
as specified in “7. Test overview tables” of this document.
Note 1 The single cores of the UTP cable shall meet the requirements of ISO 19642-3. Dimensions and
conductor definition may be different, but must be documented in the test report.
Note 2 If suppliers and customers agree upon modifications or changes to the methods and requirements, it
is required that all the changes and modifications are clearly documented.
Note 3 The paragraph numbers in this part are aligned with the paragraph numbers in ISO 19642-2 “Test
methods”. Paragraph numbers not required in this part are intentionally omitted.
4.2 Safety concerns
See the “Warning" at the beginning of this document.
4.3 Voltage rating
The voltage rating is established by the rating of the cores 30 V a.c. or 60 V d.c.
4.4 Temperature classes
The temperature class rating is established by the rating(s) of the core and sheath. The rating of the
cable shall be equal to the lowest rating of the core and sheath. For details on temperature classes see
ISO 19642-1.
4.5 Cable construction
For detailed information on preferred constructions please refer to Table 9 and Table 10. Other
constructions and materials are permissible when agreed between customer and supplier.
4.5.1 Single Cores
4.5.1.1 Conductor
4.5.1.1.1 Conductor material
For conductor materials see ISO 1964
...