IEC 60189-3:2007

INTERNATIONAL IEC
STANDARD 60189-3
Fourth edition
2007-05
Low-frequency cables and wires
with PVC insulation and PVC sheath –
Part 3:
Equipment wires with solid or stranded
conductor wires, PVC insulated, in singles,
pairs and triples
Reference number
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INTERNATIONAL IEC
STANDARD 60189-3
Fourth edition
2007-05
Low-frequency cables and wires
with PVC insulation and PVC sheath –
Part 3:
Equipment wires with solid or stranded
conductor wires, PVC insulated, in singles,
pairs and triples
PRICE CODE
Commission Electrotechnique Internationale M
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
For price, see current catalogue

– 2 – 60189-3 © IEC:2007(E)
CONTENTS
FOREWORD.3

1 Scope.5
2 Normative references .5
3 Terms and definitions .5
4 Wire construction and dimensions .5
4.1 Conductor .5
4.1.1 Conductor material .5
4.1.2 Type of conductor.6
4.1.3 Conductor finish .6
4.1.4 Conductor dimensions .6
4.1.5 Continuity of conductor.6
4.2 Insulation .6
4.2.1 insulation material .6
4.2.2 Insulation thickness .6
4.2.3 Application of the insulation.6
4.2.4 Colour of insulation.7
4.3 Twisting of insulated conductors.8
4.4 Identification of insulated conductors.8
4.5 Delivery.8
5 Mechanical requirements.8
5.1 Conductor .8
5.2 Insulation .9
6 Thermal stability and climatic requirements .9
6.1 Measurement of insulation shrinkage after over-heating of conductor.9
6.2 Resistance to flame propagation .10
6.3 Cold bend test.10
6.4 Heat shock test .10
7 Electrical requirements .10
7.1 Electrical resistance of conductor .10
7.2 Dielectric strength .10
7.3 Insulation resistance .10

Annex A (normative) Single equipment wires .11
Annex B (normative) Equipment wires in pairs and triples .12
Annex C (normative) Calculation of the maximum diameter of insulated conductors.13

Figure 1 – Construction.8

60189-3 © IEC:2007(E) – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
LOW-FREQUENCY CABLES AND WIRES
WITH PVC INSULATION AND PVC SHEATH –

Part 3: Equipment wires with solid or stranded conductor wires,
PVC insulated, in singles, pairs and triples

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
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 60189-3 has been prepared by subcommittee 46C: Wires and
symmetrical cables, of IEC technical committee 46: Cables, wires, waveguides, r.f.
connectors, r.f. and microwave passive components and accessories.
This fourth edition cancels and replaces the third edition published in 1988 and amendment 1
(1989). This edition constitutes a technical revision.
This edition includes an update of the technical characteristics.

– 4 – 60189-3 © IEC:2007(E)
The text of this standard is based on the following documents:
FDIS Report on voting
46C/822/FDIS 46C/830/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.
The list of all the parts of the IEC 60189 series, under the general title Low-frequency cables
and wires with PVC insulation and PVC sheath, can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the maintenance result 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 publication may be issued at a later date.

60189-3 © IEC:2007(E) – 5 –
LOW-FREQUENCY CABLES AND WIRES
WITH PVC INSULATION AND PVC SHEATH –

Part 3: Equipment wires with solid or stranded conductor wires,
PVC insulated, in singles, pairs and triples

1 Scope
This part of IEC 60189 is applicable to equipment wires with solid or stranded conductor,
polyvinyl chloride (PVC) insulated, in singles, pairs and triples to be used for internal wiring of
telecommunication equipment, industrial and consumer electronic equipment.
NOTE It is the responsibility of the manufacturer to establish quality assurance by quality control procedures which
will ensure that the product will meet the requirements of this standard. It is not intended that a complete testing
programme must be carried out on every length of conductor. When the purchaser wishes to specify acceptance
tests or other quality procedures, it is essential that agreement be reached between the purchaser and the
manufacturer by the time of ordering.
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 60028, International standard of resistance for copper
IEC 60189-1:2007, Low-frequency cables and wires with PVC insulation and PVC sheath –
Part 1: General test and measuring methods
IEC 60304, Standard colours for insulation for low-frequency cables and wires
IEC 60344, Guide to the calculation of resistance of plain and coated copper conductors of
low-frequency cables and wires
IEC 60649, Calculation of maximum external diameter of cables for indoor installations
ISO 105 (all parts), A and B textiles – Tests for colour fastness
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60189-1 apply.
4 Wire construction and dimensions
4.1 Conductor
4.1.1 Conductor material
The conductor shall consist of annealed copper, uniform in quality and free from defects. The
properties of the copper shall be in accordance with IEC 60028.

– 6 – 60189-3 © IEC:2007(E)
The three smallest conductors (0,12 mm and 0,15 mm diameter and 0,035 mm cross-
sectional area) shall consist of copper alloy, uniform in quality and free from defects. Copper
alloy may also be used for other small conductor gauges.
4.1.2 Type of conductor
The conductor may be either solid or stranded.
The solid conductor shall consist of a single strand circular in section.
This stranded conductor shall consist of several strands of circular cross-section assembled
either by concentric layer stranding or by bunching, and without insulation between them.
4.1.3 Conductor finish
The conductor may be either plain or tinned.
4.1.4 Conductor dimensions
The solid conductor is de
...