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IEC 60794-2-30
Edition 3.0 2019-03
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Optical fibre cables –
Part 2-30: Indoor cables – Family specification for optical fibre ribbon cables for
use in terminated cable assemblies
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IEC 60794-2-30
Edition 3.0 2019-03
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Optical fibre cables –
Part 2-30: Indoor cables – Family specification for optical fibre ribbon cables for
use in terminated cable assemblies
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.180.10 ISBN 978-2-8322-6684-7
– 2 – IEC 60794-2-30:2019 RLV © IEC 2019
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Construction . 7
4.1 General . 7
4.2 Optical fibres and primary coating . 8
4.3 Buffer . 8
4.4 Ruggedized fibre . 8
4.5 Slotted core . 8
4.6 Tube . 8
4.7 Stranded loose tube . 8
4.8 Ribbon structure . 8
4.9 Strength and anti-buckling members . 8
4.10 Ripcord . 8
4.11 Sheath . 8
4.12 Sheath marking . 9
4.13 Identification . 9
4.14 Example of cable construction . 9
5 Dimensions. 9
5.1 Optical fibres and primary coating . 9
5.2 Ribbon structural geometry . 10
5.3 Optical fibre ribbon cable . 10
6 Tests . 10
6.1 General . 10
6.2 Dimensions . 10
6.3 Mechanical requirements . 11
6.3.1 Cable tensile performance . 11
6.3.2 Cable crush . 11
6.3.3 Cable impact . 11
6.3.4 Cable bending . 11
6.3.5 Cable repeated bending . 11
6.3.6 Cable bending under tension . 12
6.3.7 Cable bending at low temperature . 12
6.3.8 Cable flexing . 12
6.3.9 Cable torsion . 12
6.3.10 Cable kink . 12
6.4 Environmental requirements – Temperature cycling . 12
6.5 Transmission requirements . 13
6.5.1 General . 13
6.5.2 Single mode optical fibres . 13
6.5.3 Single-mode dispersion unshifted optical fibre (B1.1) . 13
6.5.4 Single-mode dispersion unshifted optical fibre (B1.2) . 14
6.5.5 Single-mode dispersion unshifted optical fibre (B1.3) . 14
6.5.6 Single-mode dispersion shifted optical fibre (B2) . 14
6.5.7 Single-mode non-zero dispersion optical fibre (B4) . 14
6.5.8 Single-mode wide band non-zero dispersion optical fibre (B5) . 15
6.5.9 Single-mode bending loss insensitive optical fibre (B6) . 15
6.5.10 Multimode fibres . 15
6.6 Fire performance . 15
Annex A (informative) Example of cable construction . 17
Annex B (informative) Family specification indoor cables – Optical fibre ribbon cables . 18
B.1 Blank detail specification . 18
B.1.1 Cable description . 18
B.1.2 Cable element . 19
B.1.3 Cable construction . 19
B.1.4 Installation and operating conditions . 20
B.1.5 Mechanical, environmental and fire performance tests . 20
B.2 Additional requirements for Cables subject to the MICE environmental
classification (ISO/IEC 24702 ISO 11801-3 and related standards) . 21
Bibliography . 24
Figure 1 – Example of identification by means of colour coding and positioning . 9
Figure A.1 – Example of cross-section of a four-fibre ribbon cable . 17
Table – Specifications for Industrial Premises installations as defined in
ISO/IEC 24702 .
Table 1 – Dimensions of optical fibre ribbon cables . 10
Table 2 – Temperature cycling conditions . 13
Table 3 – Common single-mode fibre requirements . 13
Table 4 – Cabled attenuation requirements for B1.1 optical fibre . 13
Table 5 – Cabled attenuation requirements for B1.2 optical fibre . 14
Table 6 – Cabled attenuation requirements for B1.3 optical fibre . 14
Table 7 – Cabled attenuation requirements for B2 optical fibre . 14
Table 8 – Cabled attenuation requirements for B4 optical fibre . 14
Table 9 – Cabled attenuation requirements for B5 optical fibre . 15
Table 10 – Cabled attenuation requirements for B6 optical fibre . 15
Table 11 – Requirements for multimode optical fibre (A1a and A1b) . 15
Table B.1 – Cable description . 18
Table B.2 – Cable element . 19
Table B.3 – Cable construction . 19
Table B.4 – Installation and operating conditions . 20
Table B.5 – Tests applicable . 21
– 4 – IEC 60794-2-30:2019 RLV © IEC 2019
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
OPTICAL FIBRE CABLES –
Part 2-30: Indoor cables –
Family specification for optical fibre ribbon
cables for use in terminated cable assemblies
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-
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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
Comm
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