IEC 60794-3-11:2010

Optical fibre cables - Part 3-11: Outdoor cables - Product specification for duct, directly buried, and lashed aerial single-mode optical fibre telecommunication cables

IEC 60794-3-11:2010 sets forth technical requirements and characteristics of single-mode optical fibre cables for duct and direct buried installation. This specification includes functional mechanical, environmental and optical requirements, recommended features and test methods for assessing the product against the stated requirements. The requirements of this specification supplement those of IEC 60794-3 and IEC 60794-3-10. The main changes with respect to the previous edition are as follows: - the title of the specification has been updated to include lashed applications; - the fibres specification clause (subclause 5.2.2) has been enlarged to include fibres types B6_a.

Câbles à fibres optiques - Partie 3-11: Câbles extérieurs - Spécification de produit pour les câbles de télécommunication à fibres optiques unimodales, destinés à être installés dans des conduites, directement enterrés et en aériens ligaturés

La CEI 60794-3-11:2010 établit les exigences techniques et les caractéristiques des câbles à fibres optiques unimodales destinés à être installés dans des conduites ou directement enterrés. Cette spécification comprend des exigences fonctionnelles mécaniques, environnementales et optiques, des caractéristiques recommandées et des méthodes d'essai pour l'évaluation des produits par rapport aux exigences établies. Les exigences de la présente spécification complètent celles de la CEI 60794-3 et de la CEI 60794-3-10. Les principales modifications par rapport à l'édition antérieure sont: - le titre de la spécification a été mis à jour pour inclure les applications avec ligatures; - L'article relatif aux spécifications de fibres (paragraphe 5.2.2) a été étendu pour inclure les types de fibres B6_a.

General Information

• Status: Published
• Publication Date: 15-Jun-2010
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 33.180.10 - Fibres and cables
• Technical Committee: SC 86A - Fibres and cables
• Current Stage: PPUB - Publication issued
• Start Date: 30-Jun-2010
• Completion Date: 16-Jun-2010

Relations

• Revises: IEC 60794-3-11:2007 - Optical fibre cables - Part 3-11: Outdoor cables - Detailed specification for duct and directly buried single-mode optical fibre telecommunication cables
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 60794-3-11 ®
Edition 2.0 2010-06
INTERNATIONAL
STANDARD
colour
inside
Optical fibre cables –
Part 3-11: Outdoor cables – Product specification for duct, directly buried, and
lashed aerial single-mode optical fibre telecommunication cables

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.

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About the IEC
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International Standards for all electrical, electronic and related technologies.

About IEC publications
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IEC 60794-3-11 ®
Edition 2.0 2010-06
INTERNATIONAL
STANDARD
colour
inside
Optical fibre cables –
Part 3-11: Outdoor cables – Product specification for duct, directly buried, and
lashed aerial single-mode optical fibre telecommunication cables

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
U
ICS 33.180.10 ISBN 978-2-88910-974-6
– 2 – 60794-3-11 © IEC:2010(E)
CONTENTS
FOREWORD.4
1 Scope.6
2 Normative references .6
3 Terms, definitions and symbols .7
3.1 Terms and definitions .7
3.2 Symbols .7
4 General information.7
4.1 General cable description.7
4.1.1 Characteristics of optical fibre .7
4.1.2 Characteristics of optical fibre cable elements .8
4.1.3 Characteristics of optical fibre cables .8
4.1.4 Environmental and product safety requirements .8
4.2 Optical fibre splice-ability .8
4.3 Testing .9
4.3.1 General .9
4.3.2 No change in attenuation.9
4.3.3 No change in fibre strain.9
5 Requirements for cabled single-mode optical fibres.9
5.1 Fibre materials .9
5.2 Optical requirements .10
5.2.1 General .10
5.2.2 Attenuation coefficient .10
5.2.3 Attenuation discontinuities.11
5.2.4 Cable cut-off wavelength .11
5.2.5 Polarization mode dispersion (PMD) .11
5.2.6 Group index.12
6 Requirements for cable elements .12
6.1 Element design .12
6.1.1 General .12
6.1.2 Modularity .12
6.1.3 Fibre and element identification .12
6.2 Element characteristics .13
6.2.1 Ribbon.13
6.2.2 Tube kinking.13
7 Requirements for optical cables.14
7.1 Cable construction .14
7.1.1 General .14
7.1.2 Cable core.14
7.1.3 Anti-buckling and strength element splicing .14
7.1.4 Cable element stranding.14
7.1.5 Spliced fibres .14
7.1.6 Spare fibres.14
7.1.7 Cable sheath removal.15
7.1.8 Armouring.15
7.2 Sheath marking .15
7.2.1 Sheath marking .15

60794-3-11 © IEC:2010(E) – 3 –
7.2.2 Identification marking .15
7.2.3 Cable length marking.16
7.3 Cable Core Materials.16
7.3.1 Tube filling compound material (if required) .16
7.3.2 Water-blocking material .16
7.3.3 Cable material compatibility.16
7.3.4 Tube material .16
7.4 Cable sheath .17
7.4.1 Sheath material .17
7.4.2 Sheath thickness .17
7.4.3 Outer cable diameter .17
7.4.4 Moisture barrier .17
7.4.5 Rodent resistant barrier .17
7.5 Mechanical requirements.17
7.5.1 General .17
7.5.2 Bend.17
7.5.3 Impact .18
7.5.4 Crush .18
7.5.5 Tensile performance.19
7.5.6 Torsion .20
7.5.7 Repeated bending .20
7.6 Environmental requirements .21
7.6.1 Temperature cycling .21
7.6.2 Stripping force stability of cabled optical fibres .22
7.6.3 Water penetration.23
7.6.4 Environmental impact .23
7.7 Electrical protection.23
8 Quality assurance.23
Annex A (informative) .24
Annex B (informative) .25
Bibliography.27

Figure 1 – For all cycles except last.21
Figure 2 – Last cycle.21

Table 1 – Requirements for the attenuation coefficient of cabled fibre.10
Table 2 – Colour for individual fibres or units (listed alphabetically) .12
Table A.1 – ITU-T & IEC Cross reference .24
Table B.1 – Dimensional attributes and measurement methods .25
Table B.2 – Mechanical attributes and test methods .26
Table B.3 – Transmission attributes and measurement methods .26
Table B.4 – Environmental exposure tests .26
Table B.5 – Attributes measured during or after environmental exposure .26

– 4 – 60794-3-11 © IEC:2010(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
OPTICAL FIBRE CABLES –
Part 3-11: Outdoor cables –
Product specification for duct, directly buried, and lashed aerial
single-mode optical fibre telecommunication 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
...

IEC 60794-3-11 ®
Edition 2.0 2010-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Optical fibre cables –
Part 3-11: Outdoor cables – Product specification for duct, directly buried, and
lashed aerial single-mode optical fibre telecommunication cables

Câbles à fibres optiques –
Partie 3-11: Câbles extérieurs – Spécification de produit pour les câbles de
télécommunication à fibres optiques unimodales, destinés à être installés dans
des conduites, directement enterrés et en aériens ligaturés

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.

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publication, utilisez les coordonnées ci-après ou contactez le Comité national de la CEI de votre pays de résidence.

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Switzerland
Email: [e-mail]
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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.
 Catalogue of IEC publications: www.iec.ch/searchpub
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It also gives information on projects, withdrawn and replaced publications.
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The world's leading online dictionary of electronic and electrical terms containing more than 20 000 terms and definitions
in English and French, with equivalent terms in additional languages. Also known as the International Electrotechnical
Vocabulary online.
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IEC 60794-3-11 ®
Edition 2.0 2010-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Optical fibre cables –
Part 3-11: Outdoor cables – Product specification for duct, directly buried, and
lashed aerial single-mode optical fibre telecommunication cables

Câbles à fibres optiques –
Partie 3-11: Câbles extérieurs – Spécification de produit pour les câbles de
télécommunication à fibres optiques unimodales, destinés à être installés dans
des conduites, directement enterrés et en aériens ligaturés

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX U
ICS 33.180.10 ISBN 978-2-88910-974-6

– 2 – 60794-3-11 © IEC:2010
CONTENTS
FOREWORD. 4
1  Scope . 6
2  Normative references . 6
3  Terms, definitions and symbols . 7
3.1  Terms and definitions . 7
3.2  Symbols . 7
4  General information . 7
4.1  Overview . 7
4.2  General cable description . 7
4.2.1  Characteristics of optical fibre . 7
4.2.2  Characteristics of optical fibre cable elements . 8
4.2.3  Characteristics of optical fibre cables . 8
4.2.4  Environmental and product safety requirements . 8
4.3  Optical fibre splice-ability . 8
4.4  Testing . 9
4.4.1  General . 9
4.4.2  No change in attenuation . 9
4.4.3  No change in fibre strain . 9
5  Requirements for cabled single-mode optical fibres . 9
5.1  Fibre materials . 9
5.2  Optical requirements . 10
5.2.1  General . 10
5.2.2  Attenuation coefficient . 10
5.2.3  Attenuation discontinuities . 11
5.2.4  Cable cut-off wavelength . 11
5.2.5  Polarization mode dispersion (PMD) . 11
5.2.6  Group index . 12
6  Requirements for cable elements . 12
6.1  Element design . 12
6.1.1  General . 12
6.1.2  Modularity . 12
6.1.3  Fibre and element identification . 12
6.2  Element characteris t ics . 13
6.2.1  Ribbon . 13
6.2.2  Tube kinking . 13
7  Requirements for optical cables . 14
7.1  Cable construction . 14
7.1.1  General . 14
7.1.2  Cable core . 14
7.1.3  Anti-buckling and strength element splicing . 14
7.1.4  Cable element stranding . 14
7.1.5  Spliced fibres . 14
7.1.6  Spare fibres . 14
7.1.7  Cable sheath removal . 15
7.1.8  Armouring . 15

60794-3-11 © IEC:2010 – 3 –
7.2  Marking . 15
7.2.1  Sheath marking . 15
7.2.2  Identification marking . 15
7.2.3  Cable length marking . 16
7.3  Cable core materials . 16
7.3.1  Tube filling compound material (if required) . 16
7.3.2  Water-blocking material . 16
7.3.3  Cable material compatibility . 16
7.3.4  Tube material . 16
7.4  Cable sheath . 17
7.4.1  Sheath material . 17
7.4.2  Sheath thickness . 17
7.4.3  Outer cable diameter . 17
7.4.4  Moisture barrier . 17
7.4.5  Rodent resistant barrier . 17
7.5  Mechanical requirements . 17
7.5.1  General . 17
7.5.2  Bend . 17
7.5.3  Impact . 18
7.5.4  Crush . 18
7.5.5  Tensile performance . 19
7.5.6  Torsion . 20
7.5.7  Repeated bending . 20
7.6  Environmental requirements . 21
7.6.1  Temperature cycling . 21
7.6.2  Stripping force stability of cabled optical fibres . 22
7.6.3  Water penetration . 23
7.6.4  Environmental impact . 23
7.7  Electrical protection . 23
8  Quality assurance . 23
Annex A (informative) Guidan
...