IEC 61156-7:2003
(Main)Multicore and symmetrical pair/quad cables for digital communications - Part 7: Symmetrical pair cables with transmission characteristics up to 1 200 MHz - Sectional specification for digital and analog communication cables
Multicore and symmetrical pair/quad cables for digital communications - Part 7: Symmetrical pair cables with transmission characteristics up to 1 200 MHz - Sectional specification for digital and analog communication cables
provides the cable characteristics required by system developers to evaluate new systems as well as to enhance present systems
Câbles multiconducteurs à paires symétriques et quartes pour transmissions numériques - Partie 7: Câbles à paires symétriques avec caractéristiques de transmission jusqu'à 1 200 MHz - Spécification intermédiaire pour câbles de transmissions numériques et analogiques
fournit les caractéristiques de câble prescrites par ceux qui développent les systèmes pour permettre d'évaluer de nouveaux systèmes comme de valoriser les systèmes actuels.
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INTERNATIONAL IEC
STANDARD
61156-7
First edition
2003-05
Multicore and symmetrical pair/quad cables
for digital communications –
Part 7:
Symmetrical pair cables with transmission
characteristics up to 1 200 MHz –
Sectional specification for digital and
analog communication cables
Reference number
Publication numbering
As from 1 January 1997 all IEC publications are issued with a designation in the
60000 series. For example, IEC 34-1 is now referred to as IEC 60034-1.
Consolidated editions
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edition numbers 1.0, 1.1 and 1.2 refer, respectively, to the base publication, the
base publication incorporating amendment 1 and the base publication incorporating
amendments 1 and 2.
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INTERNATIONAL IEC
STANDARD
61156-7
First edition
2003-05
Multicore and symmetrical pair/quad cables
for digital communications –
Part 7:
Symmetrical pair cables with transmission
characteristics up to 1 200 MHz –
Sectional specification for digital and
analog communication cables
IEC 2003 Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
PRICE CODE
Commission Electrotechnique Internationale
M
International Electrotechnical Commission
Международная Электротехническая Комиссия
For price, see current catalogue
– 2 – 61156-7 IEC:2003(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
MULTICORE AND SYMMETRICAL PAIR/QUAD CABLES
FOR DIGITAL COMMUNICATIONS –
Part 7: Symmetrical pair cables with transmission
characteristics up to 1 200 MHz –
Sectional specification for digital and analog
communication cables
FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising all national
electrotechnical committees (IEC National Committees). The object of the 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, the IEC
publishes International Standards. 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. The 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 the 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 National Committees.
3) The documents produced have the form of recommendations for international use and are published in the form of standards,
technical specifications, technical reports or guides and they are accepted by the National Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International Standards
transparently to the maximum extent possible in their national and regional standards. Any divergence between the IEC Standard
and the corresponding national or regional standard shall be clearly indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared
to be in conformity with one of its standards.
6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of patent rights.
The IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61156-7 has been prepared by subcommittee 46C: Wires and
symmetric cables, of 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
46C/573/FDIS 46C/591/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 standard is to be read in conjunction with IEC 61156-1.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
The committee has decided that the contents of this publication will remain unchanged until 2008.
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.
The contents of the corrigendum of September 2003 have been included in this copy.
61156-7 IEC:2003(E) – 3 –
MULTICORE AND SYMMETRICAL PAIR/QUAD CABLES
FOR DIGITAL COMMUNICATIONS –
Part 7: Symmetrical pair cables with transmission
characteristics up to 1 200 MHz –
Sectional specification for digital and analog
communication cables
1 General
1.1 Scope
This sectional specification relates to IEC 61156-1.
The cables described herein may be used for various communication systems as well as for analog
systems, such as video, that exist or are under development and which may use as many as four
pairs simultaneously. In this sense, this sectional specification provides the cable characteristics
required by system developers to evaluate new systems as well as to enhance present systems.
It covers a cable having four individually screened (STP) pairs. The cable may be provided with
a common screen over the cable core.
The transmission characteristics are specified up to a frequency of 1 200 MHz and at a
temperature of 20 °C.
The cables covered by this sectional specification are intended to operate with voltages and
currents normally encountered in communication systems. These cables are not intended to be
used in conjunction with low impedance sources, for example, the electric power supply of public
utility mains.
1.2 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 60189-1:1986, 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 61156-1:2002, Multicore and symmetrical pair/quad cables for digital communications – Part 1:
Generic specification
IEC 61156-7-1, Multicore and symmetrical pair/quad cables for digital communications – Part 7-1:
Symmetrical pair cables with transmission characteristics up to 1 200 MHz – Blank detail
specification for digital and analog communication cables
IEC 62153-4-2, Metallic telecommunication cable test methods – Part 4-2: Screening and coupling
attenuation – Injection clamp method
– 4 – 61156-7 IEC:2003(E)
1.3 Installation considerations
Under consideration.
1.4 Climatic conditions
Under static conditions, the cables shall operate in the temperature range from –20 °C to +60 °C.
The temperature dependence of the cables is specified for screened cables and should be taken
into account for the design of actual cabling systems.
The recommended temperature range during installation should be indicated in the relevant detail
specification.
2 Definitions, materials and cable construction
2.1 Definitions
See 2.1 of IEC 61156-1.
2.2 Materials and cable construction
2.2.1 General remarks
The choice of materials and cable construction shall be suitable for the intended application and
installation of the cable. Particular care shall be taken to meet any special requirements for fire
performance (such as burning properties, smoke generation, evolution of halogen gas, etc.).
A detail specification may be prepared.
2.2.2 Cable construction
The cable construction shall be in accordance with the materials, dimensions and assembly details
given in the relevant detail specification.
2.2.3 Conductor
The conductor shall be a solid annealed copper conductor, in accordance with 2.2.3 of IEC 61156-1,
and shall have a diameter between 0,5 mm and 0,8 mm.
2.2.4 Insulation
The conductor shall be insulated with a suitable thermoplastic material. Examples of suitable
materials are
– polyolefin;
– fluoropolymer;
– low-smoke zero-halogen thermoplastic material.
The insulation may be solid or cellular with or without a solid dielectric skin. The insulation shall
be continuous and shall have a thickness such that the completed cable meets the specified
requirements. The nominal thickness of the insulation shall be compatible with the method of
conductor termination.
2.2.5 Colour code of insulation
The colour code is not specified but shall be indicated in the relevant detail specification. The
colours shall be readily identifiable and shall correspond reasonably with the standard colours
shown in IEC 60304.
NOTE It is acceptable to mark or stripe the "a" wire with the colour of the "b" wire to facilitate pair identification.
61156-7 IEC:2003(E) – 5 –
2.2.6 Cable element
The cable element shall be a tested pair.
2.2.7 Screening of the cable element
The screen for the cable element shall be in accordance with 2.2.7 of IEC 61156-1. If a braid is
used, the minimum braid coverage shall be such as to meet the screening requirements of this
standard. The individual components used to screen the cable element shall be in electrical
contact.
2.2.8 Cable make-up
The core of the cable may be protected by wrappings of a non-hygroscopic tape.
2.2.9 Screening of cable core
A screen for the cable core may be provided. The screen shall be in accordance with 2.2.9 of
IEC 61156-1.
2.2.10 Sheath
The sheath material shall consist of a suitable thermoplastic material.
Examples of suitable materials are
– polyolefin;
– PVC;
– fluoropolymer;
– low-smoke zero-halogen thermoplastic material.
The sheath shall be continuous, having a uniform thickness. A non-metallic ripcord may be
provided. When provided, the ripcord shall be non-hygroscopic.
2.2.11 Colour of sheath
The colour of the sheath is not specified, but it should be stated in the relevant detail specification.
2.2.12 Identification
Each length of cable shall be identified as to the manufacturer and, when indicated in the relevant
detail specification, the year of manufacture, using one of the following methods:
– appropriately coloured threads or tapes;
– with a printed tape;
– printing on the cable core wrapping;
– marking on the sheath.
Additional markings, such as length marking etc., are permitted on the cable sheath. When used,
such markings should be indicated in the relevant detail specification.
2.2.13 Finished cable
The finished cable shall be adequately protected for storage and shipment.
– 6 – 61156-7 IEC:2003(E)
3 Characteristics and requirements
3.1 General remarks
This clause lists the characteristics and minimum requirements of a cable complying with this
specification. Test methods shall be in accordance with Clause 3 of IEC 61156-1. A detail
specification may be prepared to identify a specific product and its performance capabilities (see
Clause 4).
3.2 Electrical characteristics
The tests shall be carried out on a cable length of not less than 100 m, unless otherwise specified.
3.2.1 Conductor resistance
When measured in accordance with 5.1 of IEC 60189-1, the maximum loop-resistance shall not
exceed 17,0 Ω/100 m of cable.
3.2.2 Resistance unbalance
When measured in accordance with 2.1.1 of IEC 61156-1, the resistance unbalance of a pair shall
not exceed 2,0 %.
3.2.3 Dielectric strength
The test shall be performed on conductor/conductor and conductor/screen with 1,0 kV d.c. for
1 min or, alternately, with 2,5 kV d.c. for 2 s. An a.c. voltage may be used. The a.c. voltage levels
in these cases shall be 0,7 kV a.c. for 1 min or, alternately, 1,7 kV a.c. for 2 s.
NOTE When installed in conjunction with power cables, local regulations may require a higher test voltage.
3.2.4 Insulation resistance
The test shall be performed both on
– conductor/conductor;
– conductor/screen.
The minimum insulation resistance at 20 °C shall not be less than 5 000 MΩ⋅km.
3.2.5 Mutual capacitance
The mutual capacitance is not specified but may be indicated in the relevant detail specification.
3.2.6 Capacitance unbalance pair to ground
The maximum capacitance unbalance pair to ground shall not exceed 1 200 pF/km at a frequency
of 1 kHz.
3.2.7 Transfer impedance
The transfer impedance shal
...
IEC 61156-7
Edition 1.0 2003-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Multicore and symmetrical pair/quad cables for digital communications –
Part 7: Symmetrical pair cables with transmission characteristics up to
1 200 MHz – Sectional specification for digital and analog communication cables
Câbles multiconducteurs à paires symétriques et quartes pour transmissions
numériques –
Partie 7: Câbles à paires symétriques avec caractéristiques de transmission
jusqu’à 1 200 MHz – Spécification intermédiaire pour câbles de transmissions
numériques et analogiques
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IEC 61156-7
Edition 1.0 2003-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Multicore and symmetrical pair/quad cables for digital communications –
Part 7: Symmetrical pair cables with transmission characteristics up to
1 200 MHz – Sectional specification for digital and analog communication cables
Câbles multiconducteurs à paires symétriques et quartes pour transmissions
numériques –
Partie 7: Câbles à paires symétriques avec caractéristiques de transmission
jusqu’à 1 200 MHz – Spécification intermédiaire pour câbles de transmissions
numériques et analogiques
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
N
CODE PRIX
ICS 33.120.20 ISBN 2-8318-7286-3
– 2 – 61156-7 © CEI:2003
COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
____________
CÂBLES MULTICONDUCTEURS À PAIRES SYMÉTRIQUES ET QUARTES
POUR TRANSMISSIONS NUMÉRIQUES –
Partie 7: Câbles à paires symétriques
avec caractéristiques de transmission jusqu’à 1 200 MHz –
Spécification intermédiaire pour câbles de transmissions
numériques et analogiques
AVANT-PROPOS
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l'ensemble des comités électrotechniques nationaux (Comités nationaux de la CEI). La CEI a pour objet de favoriser
la coopération internationale pour toutes les questions de normalisation dans les domaines de l'électricité et de
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avoir identifié de tels droits de propriété et de ne pas avoir signalé leur existence.
La Norme internationale CEI 61156-7 a été établie par le sous-comité 46C: Câbles symétriques et
fils, du comité d'études 46 de la CEI: Câbles, fils, guides d’ondes, connecteurs, composants
passifs pour micro-onde et accessoires.
La présente version bilingue, publiée en 2003-11, correspond à la version anglaise et à son
Corrigendum 1 (2003-09).
Le texte anglais de cette norme est issu des documents 46C/573/FDIS et 46C/591/RVD.
Le rapport de vote 46C/591/RVD donne toute information sur le vote ayant abouti à l'approbation
de cette norme.
61156-7 © IEC:2003 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
MULTICORE AND SYMMETRICAL PAIR/QUAD CABLES
FOR DIGITAL COMMUNICATIONS –
Part 7: Symmetrical pair cables with transmission
characteristics up to 1 200 MHz –
Sectional specification for digital and analog
communication cables
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 61156-7 has been prepared by subcommittee 46C: Wires and
symmetric cables, of IEC technical committee 46: Cables, wires, waveguides, r.f. connectors, r.f.
and microwave passive components and accessories.
This bilingual version, published in 2003-11, corresponds to the English version including its
Corrigendum 1 (2003-09).
The text of this standard is based on the following documents:
FDIS Report on voting
46C/573/FDIS 46C/591/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 – 61156-7 CEI:2003
La version française de cette norme n’a pas été soumise au vote.
Cette norme est à lire conjointement avec la CEI 61156-1.
Cette publication a é
...
IEC 61156-7 ®
Edition 1.1 2012-12
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Multicore and symmetrical pair/quad cables for digital communications –
Part 7: Symmetrical pair cables with transmission characteristics up to
1 200 MHz – Sectional specification for digital and analog communication cables
Câbles multiconducteurs à paires symétriques et quartes pour transmissions
numériques –
Partie 7: Câbles à paires symétriques avec caractéristiques de transmission
jusqu’à 1 200 MHz – Spécification intermédiaire pour câbles de transmissions
numériques et analogiques
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester.
If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication,
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IEC 61156-7 ®
Edition 1.1 2012-12
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Multicore and symmetrical pair/quad cables for digital communications –
Part 7: Symmetrical pair cables with transmission characteristics up to
1 200 MHz – Sectional specification for digital and analog communication
cables
Câbles multiconducteurs à paires symétriques et quartes pour transmissions
numériques –
Partie 7: Câbles à paires symétriques avec caractéristiques de transmission
jusqu’à 1 200 MHz – Spécification intermédiaire pour câbles de transmissions
numériques et analogiques
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.120.20 ISBN 978-2-8322-0563-1
– 2 – 61156-7 IEC:2003+A1:2012
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
MULTICORE AND SYMMETRICAL PAIR/QUAD CABLES
FOR DIGITAL COMMUNICATIONS –
Part 7: Symmetrical pair cables with transmission
characteristics up to 1 200 MHz –
Sectional specification for digital and analog
communication cables
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 itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services
carried out by independent certification bodies.
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.
This consolidated version of the official IEC Standard and its amendment has been prepared
for user convenience.
IEC 61156-7 edition 1.1 contains the first edition (2003) [documents 46C/573/FDIS and 46C/591/
RVD] and its amendment 1 (2012) [documents 46C/956/CDV and 46C/965/RVC].
A vertical line in the margin shows where the base publication has been modified by
amendment 1. Additions and deletions are displayed in red, with deletions being struck
through.
61156-7 IEC:2003+A1:2012 – 3 –
International Standard IEC 61156-7 has been prepared by subcommittee 46C: Wires and
symmetric cables, of IEC technical committee 46: Cables, wires, waveguides, r.f. connectors, r.f.
and microwave passive components and accessories.
The bilingual version (2003-11) replaces the English version including its Corrigendum 1
(2003-09).
The French version has not been voted upon.
This standard is to be read in conjunction with IEC 61156-1.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
The committee has decided that the contents of the base publication and its amendments 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.
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 publication using a colour printer.
– 4 – 61156-7 IEC:2003+A1:2012
MULTICORE AND SYMMETRICAL PAIR/QUAD CABLES
FOR DIGITAL COMMUNICATIONS –
Part 7: Symmetrical pair cables with transmission
characteristics up to 1 200 MHz –
Sectional specification for digital and analog
communication cables
1 General
1.1 Scope
This sectional specification relates to IEC 61156-1.
The cables described herein may be used for various communication systems as well as for analog
systems, such as video, that exist or are under development and which may use as many as four
pairs simultaneously. In this sense, this sectional specification provides the cable characteristics
required by system developers to evaluate new systems as well as to enhance present systems.
It covers a cable having four individually screened (STP) pairs. The cable may be provided with a
common screen over the cable core.
The transmission characteristics are specified up to a frequency of 1 200 MHz and at a
temperature of 20 °C.
The cables covered by this sectional specification are intended to operate with voltages and
currents normally encountered in communication systems. These cables are not intended to be
used in conjunction with low impedance sources, for example, the electric power supply of public
utility mains.
1.2 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 60189-1:1986, 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 61156-1:2002, Multicore and symmetrical pair/quad cables for digital communications – Part 1:
Generic specification
IEC 61156-7-1, Multicore and symmetrical pair/quad cables for digital communications – Part 7-1:
Symmetrical pair cables with transmission characteristics up to 1 200 MHz – Blank detail
specification for digital and analog communication cables
IEC 62153-4-2, Metallic telecommunication cable test methods – Part 4-2: Electromagnetic
compatibility (EMC) – Screening and coupling attenuation – Injection clamp method
61156-7 IEC:2003+A1:2012 – 5 –
1.3 Installation considerations
Under consideration.
1.4 Climatic conditions
Under static conditions, the cables shall operate in the temperature range from –20 °C to +60 °C.
The temperature dependence of the cables is specified for screened cables and should be taken
into account for the design of actual cabling systems.
The recommended temperature range during installation should be indicated in the relevant detail
specification.
2 Definitions, materials and cable construction
2.1 Definitions
See 2.1 of IEC 61156-1.
2.2 Materials and cable construction
2.2.1 General remarks
The choice of materials and cable construction shall be suitable for the intended application and
installation of the cable. Particular care shall be taken to meet any special requirements for fire
perform
...
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