IEC 61156-1:2007
(Main)Multicore and symmetrical pair/quad cables for digital communications - Part 1: Generic specification
Multicore and symmetrical pair/quad cables for digital communications - Part 1: Generic specification
IEC 61156-1 is applicable to communication systems such as ISDN, local area networks and data communication systems and specifies the definitions, requirements and test methods of multicore, symmetrical pair and quad cables. It is also applicable to cables used for customer premises wiring. The contents of the corrigendum of August 2015 have been included in this copy.
Câbles multiconducteurs à paires symétriques et quartes pour transmissions numériques - Partie 1: Spécification générique
La CEI 61156-1 est applicable aux systèmes de transmission tels que le RNIS (ISDN), les réseaux locaux et les systèmes de transmissions de données, et spécifie les définitions, les exigences et les méthodes d'essai des câbles multiconducteurs, à paires symétriques et à quartes. Elle est aussi applicable aux câbles utilisés pour le câblage des locaux des clients. Le contenu du corrigendum d'août 2015 a été pris en considération dans cet exemplaire.
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INTERNATIONAL IEC
STANDARD 61156-1
Third edition
2007-06
Multicore and symmetrical pair/quad
cables for digital communications –
Part 1:
Generic specification
Reference number
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,
please contact the address below or your local IEC member National Committee for further information.
IEC Central Office
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CH-1211 Geneva 20
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Email: inmail@iec.ch
Web: www.iec.ch
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
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INTERNATIONAL IEC
STANDARD 61156-1
Third edition
2007-06
Multicore and symmetrical pair/quad
cables for digital communications –
Part 1:
Generic specification
PRICE CODE
Commission Electrotechnique Internationale X
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
For price, see current catalogue
– 2 – 61156-1 © IEC:2007(E)
CONTENTS
FOREWORD.5
1 Scope.7
2 Normative references .7
3 Terms and definitions .9
4 Installation considerations .12
5 Materials and cable construction .12
5.1 General remarks.12
5.2 Cable construction .12
5.2.1 Conductor.12
5.2.2 Insulation.13
5.2.3 Cable element .13
5.2.4 Cable make-up .14
5.2.5 Screening of the cable core .14
5.2.6 Sheath.14
5.2.7 Identification.14
5.2.8 Finished cable .15
6 Characteristics and requirements .15
6.1 General remarks – Test configurations .15
6.2 Electrical characteristics and tests .15
6.2.1 Conductor resistance.15
6.2.2 Resistance unbalance .16
6.2.3 Dielectric strength .16
6.2.4 Insulation resistance.16
6.2.5 Mutual capacitance.16
6.2.6 Capacitance unbalance to earth .16
6.2.7 Transfer impedance.17
6.2.8 Coupling attenuation.17
6.2.9 Current-carrying capacity .17
6.3 Transmission characteristics .17
6.3.1 Velocity of propagation (phase velocity) .17
6.3.2 Phase delay and differential delay (delay skew) .18
6.3.3 Attenuation .18
6.3.4 Unbalance attenuation.21
6.3.5 Near-end crosstalk .26
6.3.6 Far-end crosstalk.27
6.3.7 Alien (exogenous) near-end crosstalk.30
6.3.8 Alien (exogenous) far-end crosstalk.34
6.3.9 Alien (exogenous) crosstalk of bundled cables .34
6.3.10 Mean characteristic impedance and input impedance .35
6.3.11 Return loss .36
6.4 Mechanical and dimensional characteristics and requirements .37
6.4.1 Measurement of dimensions .37
6.4.2 Elongation at break of the conductor .37
6.4.3 Tensile strength of the insulation .37
6.4.4 Elongation at break of the insulation.37
61156-1 © IEC:2007(E) – 3 –
6.4.5 Adhesion of the insulation to the conductor .37
6.4.6 Elongation at break of the sheath .37
6.4.7 Tensile strength of the sheath .37
6.4.8 Crush test of the cable .37
6.4.9 Impact test of the cable .38
6.4.10 Bending under tension.38
6.4.11 Repeated bending of the cable .40
6.4.12 Tensile performance of the cable.42
6.4.13 Shock test of the cable .42
6.4.14 Bump test of the cable.42
6.4.15 Vibration test of the cable.42
6.5 Environmental characteristics.42
6.5.1 Shrinkage of the insulation .42
6.5.2 Wrapping test of the insulation after thermal ageing .42
6.5.3 Bending test of the insulation at low temperature.42
6.5.4 Elongation at break of the sheath after ageing.42
6.5.5 Tensile strength of the sheath after ageing .42
6.5.6 Sheath pressure test at high temperature .43
6.5.7 Cold bend test of the cable .43
6.5.8 Heat shock test.43
6.5.9 Damp heat steady state.43
6.5.10 Solar radiation .44
6.5.11 Solvents and contaminating fluids.44
6.5.12 Salt mist and sulphur dioxide.44
6.5.13 Water immersion .44
6.5.14 Hygroscopicity.44
6.5.15 Wicking .44
6.5.16 Flame propagation characteristics of a single cable.45
6.5.17 Flame propagation characteristics of bunched cables .45
6.5.18 Halogen gas evolution .45
6.5.19 Smoke generation .45
6.5.20 Toxic gas emission .45
6.5.21 Integrated fire test method for cables in environmental air handling
spaces.45
Bibliography.46
Figure 1 – Test set-up for the measurement of attenuation, velocity of propagation and
phase delay .19
Figure 2 – Test set-up for the measurement of the differential-mode loss of the baluns .22
Figure 3 – Test set-up for the measurement of the common-mode loss of the baluns.23
Figure 4 – Test set-up for unbalance attenuation at near end (TCL).24
Figure 5 – Test set-up for unbalance attenuation at far end (TCTL) .25
Figure 6 – Test set-up for near-end crosstalk.27
Figure 7 – Test set-up for far-end crosstalk.28
Figure 8 – Test set-up for alien (exogenous) near-end crosstalk .31
Figure 9 – Test assembly cross-section; six cables around one cable .33
Figure 10 – Test assembly layout; six cables around one cable .33
– 4 – 61156-1 © IEC:2007(E)
Figure 11 – Test assembly cross-section; four parallel cables.34
Figure 12 – Test assembly on drum; four parallel cables.34
Figure 13 – Test set-up for mean characteristic impedance, input impedance and
return loss .35
Figure 14 – U-bend test configuration .39
Figure 15 – S-bend test configuration .39
Figure 16 – Repeated bending test configuration .41
Figure 17 – Wicking test configuration .45
Table 1 – Test balun performance characteristics .21
61156-1 © IEC:2007(E) – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
MULTICORE AND SYMMETRICAL PAIR/QUAD CABLES
FOR DIGITAL COMMUNICATIONS –
Part 1: Generic specification
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,
...
IEC 61156-1
Edition 3.0 2007-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Multicore and symmetrical pair/quad cables for digital communications –
Part 1: Generic specification
Câbles multiconducteurs à paires symétriques et quartes pour transmissions
numériques –
Partie 1: Spécification générique
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,
please contact the address below or your local IEC member National Committee for further information.
Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite
ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie
et les microfilms, sans l'accord écrit de la CEI ou du Comité national de la CEI du pays du demandeur.
Si vous avez des questions sur le copyright de la CEI ou si vous désirez obtenir des droits supplémentaires sur cette
publication, utilisez les coordonnées ci-après ou contactez le Comité national de la CEI de votre pays de résidence.
IEC Central Office
3, rue de Varembé
CH-1211 Geneva 20
Switzerland
Email: inmail@iec.ch
Web: www.iec.ch
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.
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IEC 61156-1
Edition 3.0 2007-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Multicore and symmetrical pair/quad cables for digital communications –
Part 1: Generic specification
Câbles multiconducteurs à paires symétriques et quartes pour transmissions
numériques –
Partie 1: Spécification générique
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
X
CODE PRIX
ICS 33.120.20 ISBN 2-8318-9638-X
– 2 – 61156-1 © IEC:2007
CONTENTS
FOREWORD.5
1 Scope.7
2 Normative references .7
3 Terms and definitions .9
4 Installation considerations .12
5 Materials and cable construction .12
5.1 General remarks.12
5.2 Cable construction .12
5.2.1 Conductor.13
5.2.2 Insulation.13
5.2.3 Cable element .13
5.2.4 Cable make-up .14
5.2.5 Screening of the cable core .14
5.2.6 Sheath.14
5.2.7 Identification.15
5.2.8 Finished cable .15
6 Characteristics and requirements .15
6.1 General remarks – Test configurations .15
6.2 Electrical characteristics and tests .16
6.2.1 Conductor resistance.16
6.2.2 Resistance unbalance .16
6.2.3 Dielectric strength .16
6.2.4 Insulation resistance.16
6.2.5 Mutual capacitance.17
6.2.6 Capacitance unbalance to earth .17
6.2.7 Transfer impedance.17
6.2.8 Coupling attenuation.17
6.2.9 Current-carrying capacity.17
6.3 Transmission characteristics .18
6.3.1 Velocity of propagation (phase velocity) .18
6.3.2 Phase delay and differential delay (delay skew) .18
6.3.3 Attenuation .19
6.3.4 Unbalance attenuation.21
6.3.5 Near-end crosstalk .26
6.3.6 Far-end crosstalk.28
6.3.7 Alien (exogenous) near-end crosstalk.31
6.3.8 Alien (exogenous) far-end crosstalk.35
6.3.9 Alien (exogenous) crosstalk of bundled cables .35
6.3.10 Mean characteristic impedance and input impedance .36
6.3.11 Return loss .37
6.4 Mechanical and dimensional characteristics and requirements .38
6.4.1 Measurement of dimensions .38
6.4.2 Elongation at break of the conductor .38
6.4.3 Tensile strength of the insulation .38
6.4.4 Elongation at break of the insulation.38
61156-1 © IEC:2007 – 3 –
6.4.5 Adhesion of the insulation to the conductor .38
6.4.6 Elongation at break of the sheath .38
6.4.7 Tensile strength of the sheath .38
6.4.8 Crush test of the cable .38
6.4.9 Impact test of the cable .39
6.4.10 Bending under tension.39
6.4.11 Repeated bending of the cable .41
6.4.12 Tensile performance of the cable.43
6.4.13 Shock test of the cable .43
6.4.14 Bump test of the cable.43
6.4.15 Vibration test of the cable.43
6.5 Environmental characteristics.43
6.5.1 Shrinkage of the insulation .43
6.5.2 Wrapping test of the insulation after thermal ageing .43
6.5.3 Bending test of the insulation at low temperature.43
6.5.4 Elongation at break of the sheath after ageing.43
6.5.5 Tensile strength of the sheath after ageing .43
6.5.6 Sheath pressure test at high temperature .44
6.5.7 Cold bend test of the cable .44
6.5.8 Heat shock test.44
6.5.9 Damp heat steady state.44
6.5.10 Solar radiation .45
6.5.11 Solvents and contaminating fluids.45
6.5.12 Salt mist and sulphur dioxide.45
6.5.13 Water immersion .45
6.5.14 Hygroscopicity.45
6.5.15 Wicking .45
6.5.16 Flame propagation characteristics of a single cable.46
6.5.17 Flame propagation characteristics of bunched cables .46
6.5.18 Halogen gas evolution .46
6.5.19 Smoke generation .46
6.5.20 Toxic gas emission .46
6.5.21 Integrated fire test method for cables in environmental air handling
spaces.46
Bibliography.47
Figure 1 – Test set-up for the measurement of attenuation, velocity of propagation and
phase delay .19
Figure 2 – Test set-up for the measurement of the differential-mode loss of the baluns .23
Figure 3 – Test set-up for the measurement of the common-mode l
...
IEC 61156-1 ®
Edition 3.1 2009-10
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Multicore and symmetrical pair/quad cables for digital communications –
Part 1: Generic specification
Câbles multiconducteurs à paires symétriques et quartes pour transmissions
numériques –
Partie 1: Spécification générique
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, please contact the address below or
your local IEC member National Committee for further information.
Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite
ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie
et les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des
questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.
IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé Fax: +41 22 919 03 00
CH-1211 Geneva 20 info@iec.ch
Switzerland www.iec.ch
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.
IEC Catalogue - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
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iPad. Vocabulary (IEV) online.
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variety of criteria (reference number, text, technical French extracted from the Terms and Definitions clause of
committee,…). It also gives information on projects, replaced IEC publications issued since 2002. Some entries have been
and withdrawn publications. collected from earlier publications of IEC TC 37, 77, 86 and
CISPR.
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also once a month by email. need further assistance, please contact the Customer Service
Centre: csc@iec.ch.
A propos de l'IEC
La Commission Electrotechnique Internationale (IEC) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.
A propos des publications IEC
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plus récente, un corrigendum ou amendement peut avoir été publié.
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IEC 61156-1 ®
Edition 3.1 2009-10
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Multicore and symmetrical pair/quad cables for digital communications –
Part 1: Generic specification
Câbles multiconducteurs à paires symétriques et quartes pour transmissions
numériques –
Partie 1: Spécification générique
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.120.20 ISBN 978-2-8891-0417-8
– 2 – 61156-1 © IEC:2007+A1:2009
CONTENTS
FOREWORD.5
1 Scope.7
2 Normative references .7
3 Terms and definitions .9
4 Installation considerations .12
5 Materials and cable construction .13
5.1 General remarks.13
5.2 Cable construction .13
5.2.1 Conductor.13
5.2.2 Insulation.13
5.2.3 Cable element .14
5.2.4 Cable make-up .14
5.2.5 Screening of the cable core .14
5.2.6 Sheath.15
5.2.7 Identification.15
5.2.8 Finished cable .15
6 Characteristics and requirements .15
6.1 General remarks – Test configurations .15
6.2 Electrical characteristics and tests .16
6.2.1 Conductor resistance.16
6.2.2 Resistance unbalance .16
6.2.3 Dielectric strength .17
6.2.4 Insulation resistance.17
6.2.5 Mutual capacitance.17
6.2.6 Capacitance unbalance .17
6.2.7 Transfer impedance.18
6.2.8 Coupling attenuation.18
6.2.9 Current-carrying capacity.18
6.3 Transmission characteristics .18
6.3.1 Velocity of propagation (phase velocity) .18
6.3.2 Phase delay and differential delay (delay skew) .19
6.3.3 Attenuation .19
6.3.4 Unbalance attenuation.22
6.3.5 Near-end crosstalk .27
6.3.6 Far-end crosstalk.29
6.3.7 Alien (exogenous) near-end crosstalk.32
6.3.8 Alien (exogenous) far-end crosstalk.37
6.3.9 Alien (exogenous) crosstalk of bundled cables .37
6.3.10 Impedance.38
6.3.11 Return loss .39
6.4 Mechanical and dimensional characteristics and requirements .40
6.4.1 Measurement of dimensions .40
6.4.2 Elongation at break of the conductor .40
6.4.3 Tensile strength of the insulation .40
6.4.4 Elongation at break of the insulation.40
6.4.5 Adhesion of the insulation to the conductor .40
61156-1 © IEC:2007+A1:2009 – 3 –
6.4.6 Elongation at break of the sheath .40
6.4.7 Tensile strength of the sheath .40
6.4.8 Crush test of the cable .40
6.4.9 Impact test of the cable .40
6.4.10 Bending under tension.40
6.4.11 Repeated bending of the cable .43
6.4.12 Tensile performance of the cable.44
6.4.13 Shock test of the cable .44
6.4.14 Bump test of the cable.44
6.4.15 Vibration test of the cable.44
6.5 Environmental characteristics.44
6.5.1 Shrinkage of the insulation .44
6.5.2 Wrapping test of the insulation after thermal ageing .44
6.5.3 Bending test of the insulation at low temperature.45
6.5.4 Elongation at break of the sheath after ageing.45
6.5.5 Tensile strength of the sheath after ageing .45
6.5.6 Sheath pressure test at high temperature .45
6.5.7 Cold bend test of the cable .45
6.5.8 Heat shock test.46
6.5.9 Damp heat steady state.46
6.5.10 Solar radiation .46
6.5.11 Solvents and contaminating fluids.46
6.5.12 Salt mist and sulphur dioxide.46
6.5.13 Water immersion .
...
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