Optical fibre cables - Part 3-70: Outdoor cables - Family specification for outdoor optical fibre cables for rapid/multiple deployment

IEC 60794-3-70:2021 is available as IEC 60794-3-70:2021 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60794-3-70:2021 covers outdoor optical fibre cables intended for rugged terrestrial rapid/multiple deployment. These cables, with enhanced mechanical, environmental and ingress performance can be used wherever a rapid or multiple deployment is relevant (e.g. mobile broadcast units, emergency rescue services, tactical ground-forces, outdoor motion-robotics, mining machinery, temporary repair cables for damaged links, etc.). This second edition cancels and replaces the first edition published in 2016. It constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
- incorporation of the new classification system for optical fibre categories, sub-categories in IEC 60793-2-10;
- incorporation of the new classification system for optical fibre categories, sub-categories and models in IEC 60793-2-50;
- updating of cabled fibre performance categories in alignment with ISO/IEC 11801-1;
- updating of bibliographical references.

General Information

Status
Published
Publication Date
06-Apr-2021
Technical Committee
Current Stage
PPUB - Publication issued
Completion Date
07-Apr-2021
Ref Project

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IEC 60794-3-70:2021 - Optical fibre cables - Part 3-70: Outdoor cables - Family specification for outdoor optical fibre cables for rapid/multiple deployment
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IEC 60794-3-70
Edition 2.0 2021-04
INTERNATIONAL
STANDARD
Optical fibre cables –

Part 3-70: Outdoor cables – Family specification for outdoor optical fibre cables

for rapid/multiple deployment
IEC 60794-3-70:2021-04(en)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 60794-3-70
Edition 2.0 2021-04
INTERNATIONAL
STANDARD
Optical fibre cables –

Part 3-70: Outdoor cables – Family specification for outdoor optical fibre cables

for rapid/multiple deployment
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.180.01; 33.180.10 ISBN 978-2-8322-9655-4

Warning! Make sure that you obtained this publication from an authorized distributor.

® Registered trademark of the International Electrotechnical Commission
---------------------- Page: 3 ----------------------
– 2 – IEC 60794-3-70:2021 © IEC 2021
CONTENTS

FOREWORD ........................................................................................................................... 3

1 Scope .............................................................................................................................. 5

2 Normative references ...................................................................................................... 5

3 Terms and definitions ...................................................................................................... 5

4 General requirements ...................................................................................................... 6

5 Specification for outdoor optical fibre cables for rapid/multiple deployment ...................... 6

5.1 Construction ........................................................................................................... 6

5.1.1 General ........................................................................................................... 6

5.1.2 Rapid/multiple deployment optical fibre cables................................................. 6

5.2 Optical fibres .......................................................................................................... 7

5.3 Secondary coating .................................................................................................. 7

5.4 Outer sheath ........................................................................................................... 7

5.5 Mechanical and environmental tests ....................................................................... 7

6 Testing of rapid/multiple deployment optical fibre cables ................................................. 7

6.1 General ................................................................................................................... 7

6.2 Applicable tests ...................................................................................................... 7

6.3 Tensile performance ............................................................................................... 9

6.4 Abrasion ................................................................................................................. 9

6.5 Crush ...................................................................................................................... 9

6.6 Impact..................................................................................................................... 9

6.7 Ribbon strippability ............................................................................................... 10

6.8 Repeated bending ................................................................................................. 10

6.9 Torsion ................................................................................................................. 10

6.10 Flexing .................................................................................................................. 10

6.11 Kink ...................................................................................................................... 11

6.12 Bend ..................................................................................................................... 11

6.13 Bending under tension .......................................................................................... 11

6.14 Multiple cable coiling and uncoiling performance................................................... 11

6.15 Temperature cycling ............................................................................................. 12

6.16 Water penetration ................................................................................................. 12

6.17 Ageing .................................................................................................................. 12

6.18 UV resistance ....................................................................................................... 12

6.19 External freezing ................................................................................................... 13

6.20 Fibre ribbon separability ....................................................................................... 13

6.21 Tube kinking ......................................................................................................... 13

Annex A (normative) Blank detail specification and minimum requirements .......................... 14

Bibliography .......................................................................................................................... 15

Table 1 – Tests applicable for mechanical and environmental performance of a

rapid/multiple deployment optical fibre cable ........................................................................... 8

Table A.1 – Cable description ............................................................................................... 14

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IEC 60794-3-70:2021 © IEC 2021 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
OPTICAL FIBRE CABLES –
Part 3-70: Outdoor cables – Family specification for outdoor optical
fibre cables for rapid/multiple deployment
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

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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.

IEC 60794-3-70 has been prepared by subcommittee 86A: Fibres and cables, of IEC technical

committee 86: Fibre optics. It is an International Standard.

This second edition cancels and replaces the first edition published in 2016. It constitutes a

technical revision.

This edition includes the following significant technical changes with respect to the previous

edition:

a) incorporation of the new classification system for optical fibre categories, sub-categories in

IEC 60793-2-10;

b) incorporation of the new classification system for optical fibre categories, sub-categories

and models in IEC 60793-2-50;

c) updating of cabled fibre performance categories in alignment with ISO/IEC 11801-1;

d) updating of bibliographical references.
---------------------- Page: 5 ----------------------
– 4 – IEC 60794-3-70:2021 © IEC 2021
The text of this International Standard is based on the following documents:
FDIS Report on voting
86A/2086/FDIS 86A/2091/RVD

Full information on the voting for its approval can be found in the report on voting indicated in

the above table.
The language used for the development of this International Standard is English.

This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in

accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available

at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are

described in greater detail at www.iec.ch/standardsdev/publications.

This International Standard is to be used in conjunction with IEC 60794-1-1, IEC 60794-1-2 and

IEC 60794-3.

A list of all parts in the IEC 60794 series, published under the general title Optical fibre cables,

can be found on the IEC website.

The committee has decided that the contents of this document will remain unchanged until the

stability date indicated on the IEC website under webstore.iec.ch in the data related to the

specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
---------------------- Page: 6 ----------------------
IEC 60794-3-70:2021 © IEC 2021 – 5 –
OPTICAL FIBRE CABLES –
Part 3-70: Outdoor cables – Family specification for outdoor optical
fibre cables for rapid/multiple deployment
1 Scope

This part of IEC 60794 is a family specification that covers outdoor optical fibre cables intended

for rugged terrestrial rapid/multiple deployment. These cables, with enhanced mechanical,

environmental and ingress performance can be used wherever a rapid or multiple deployment

is relevant (e.g. mobile broadcast units, emergency rescue services, tactical ground-forces,

outdoor motion-robotics, mining machinery, temporary repair cables for damaged links, etc.).

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.

IEC 60793-2-10:2019, Optical fibres – Part 2-10: Product specifications – Sectional

specification for category A1 multimode fibres

IEC 60793-2-50:2019, Optical fibres – Part 2-50: Product specifications – Sectional

specification for class B single-mode fibres
IEC 60794-1-1, Optical fibre cables – Part 1-1: Generic specification – General

IEC 60794-1-2, Optical fibre cables – Part 1-2: Generic specification – Basic optical cable test

procedures – General guidance

IEC 60794-1-21:2015, Optical fibre cables – Part 1-21: Generic specification – Basic optical

cable test procedures – Mechanical tests methods
IEC 60794-1-21:2015/AMD1:2020

IEC 60794-1-22:2017, Optical fibre cables – Part 1-22: Generic specification – Basic optical

cable test procedures – Environmental tests methods

IEC 60794-1-23:2019, Optical fibre cables – Part 1-23: Generic specification – Basic optical

cable test procedures – Cable element test methods

IEC 60794-1-215, Optical fibre cables – Part 1-215: Generic specification – Basic optical cable

test procedures – Environmental test methods – Cable external freezing test, Method F15

IEC 60794-3, Optical fibre cables – Part 3: Outdoor cables – Sectional specification

ISO 4892-2, Plastics – Methods of exposure to laboratory light sources – Part 2: Xenon-arc

lamps
3 Terms and definitions
No terms and definitions are listed in this document.
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– 6 – IEC 60794-3-70:2021 © IEC 2021

ISO and IEC maintain terminological databases for use in standardization at the following

addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
4 General requirements

The cable shall comply with the sectional specification, IEC 60794-3, and meet the

requirements which are defined in it.

The optical fibre contained in cables covered by this document shall comply with one of the

following standards, and meet the normative requirements defined within them as applicable:

• IEC 60793-2-10:2019, Annex A (multimode fibre sub-categories A1-OM2, A1-OM3, A1-

OM4, and A1-OM5, fibre models a and b);
• IEC 60793-2-10:2019, Annex B (multimode fibre sub-category A1-OM1);

• IEC 60793-2-50:2019, Annex A (single-mode fibre sub-category B-652.B and B-652.D);

• IEC 60793-2-50:2019, Annex F (single-mode fibre category B-657);
...

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