SIST EN IEC 60794-2-30:2019
(Main)Optical fibre cables - Part 2-30: Indoor cables - Family specification for optical fibre ribbon cables for use in terminated cable assemblies (IEC 60794-2-30:2019)
Optical fibre cables - Part 2-30: Indoor cables - Family specification for optical fibre ribbon cables for use in terminated cable assemblies (IEC 60794-2-30:2019)
This part of IEC 60794 is a family specification which covers indoor optical fibre ribbon cables
for use in terminated cable assemblies. The requirements of the sectional specification
IEC 60794-2 are applicable to cables covered by this document.
The requirements of this document are written to define flat ribbon cables. This document can
be applicable to other cable constructions. Parts of IEC 60794-3 which are applicable for
ribbon tests are the subject of IEC 60794-1-31.
Annex B contains requirements that supersede the normal requirements in case the cables
are intended to be used in installation governed by the MICE table of ISO 11801-3 [4]1.
Lichtwellenleiter - Teil 2-30: LWL-Innenkabel - Familienspezifikation für Lichtwellenleiter-Bandkabel für den Einsatz in konfektionierten Kabeln (IEC 60794-2-30:2019)
Câbles à fibres optiques - Partie 2-30: Câbles intérieurs - Spécification de famille pour les câbles à rubans de fibres optiques utilisés dans les assemblages de câbles (IEC 60794-2-30:2019)connectorisés
IEC 60794-2-30:2019 est disponible sous forme de IEC 60794-2-30:2019 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.
IEC 60794-2-30:2019 est une spécification de famille qui couvre les câbles à rubans de fibres optiques intérieurs pour usage dans les assemblages de câbles connectorisés. Les exigences de la spécification intermédiaire IEC 60794-2 sont applicables aux câbles couverts par le présent document. Les exigences présent document sont écrites pour définir un câble à ruban plat. Le présent document peut être applicable à d’autres constructions de câbles. Les parties de l’IEC 60794-3 qui sont applicables pour les essais de rubans constituent le sujet de l’IEC 60794-1-31. L’Annexe B contient des exigences qui remplacent les exigences normales dans le cas où les câbles sont destinés à être utilisés dans une installation régie par le tableau MICE de l’ISO 11801-3. Cette troisième édition annule et remplace la deuxième édition parue en 2008. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l’édition précédente:
a) retrait de l’Annexe C;
b) référence aux normes les plus récentes relatives aux fibres;
c) référence à l'IEC 60794-1-21, l'IEC 60794-1-22, l'IEC 60794-1-23 et l'IEC 60794-1-24.
La présente norme doit être utilisée conjointement avec l’IEC 60794-1-1, l’IEC 60794-1-2 et l’IEC 60794-2.
Mots-clés: câbles à rubans de fibres optiques intérieurs, câble à ruban plat
Optični kabli - 2-30. del: Notranji kabli - Skupinska specifikacija za trakaste kable iz optičnih vlaken za zaključene kabelske sestave (IEC 60794-2-30:2019)
Ta del standarda IEC 60794 je skupinska specifikacija, ki zajema notranje trakaste kable iz optičnih vlaken za uporabo v zaključenih kabelskih sestavih. Zahteve področne specifikacije IEC 60794-2 se uporabljajo za kable, ki jih zajema ta dokument.
Zahteve tega dokumenta so napisane za določanje ploskih trakastih kablov. Ta dokument je mogoče uporabiti tudi za druge konstrukcije kablov. Deli standarda IEC 60794-3, ki se uporabljajo za preskušanje kablov, so predmet standarda IEC 60794-1-31.
Dodatek B vsebuje zahteve, ki nadomeščajo običajne zahteve za kable, ki so namenjeni uporabi v napravi, ki jo določa tabela MICE iz standarda ISO 11801-3 [4]1.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN IEC 60794-2-30:2019
01-julij-2019
Nadomešča:
SIST EN 60794-2-30:2009
Optični kabli - 2-30. del: Notranji kabli - Skupinska specifikacija za trakaste kable iz
optičnih vlaken za zaključene kabelske sestave (IEC 60794-2-30:2019)
Optical fibre cables - Part 2-30: Indoor cables - Family specification for optical fibre
ribbon cables for use in terminated cable assemblies (IEC 60794-2-30:2019)
Lichtwellenleiter - Teil 2-30: LWL-Innenkabel - Familienspezifikation für Lichtwellenleiter-
Bandkabel für den Einsatz in konfektionierten Kabeln (IEC 60794-2-30:2019)
Câbles à fibres optiques - Partie 2-30: Câbles intérieurs - Spécification de famille pour
les câbles à rubans de fibres optiques utilisés dans les assemblages de câbles (IEC
60794-2-30:2019)connectorisés
Ta slovenski standard je istoveten z: EN IEC 60794-2-30:2019
ICS:
33.180.10 (Optična) vlakna in kabli Fibres and cables
SIST EN IEC 60794-2-30:2019 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN IEC 60794-2-30:2019
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SIST EN IEC 60794-2-30:2019
EUROPEAN STANDARD EN IEC 60794-2-30
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2019
ICS 33.180.10 Supersedes EN 60794-2-30:2008
English Version
Optical fibre cables - Part 2-30: Indoor cables - Family
specification for optical fibre ribbon cables for use in terminated
cable assemblies
(IEC 60794-2-30:2019)
Câbles à fibres optiques - Partie 2-30: Câbles intérieurs - Lichtwellenleiter - Teil 2-30: LWL-Innenkabel -
Spécification de famille pour les câbles à rubans de fibres Familienspezifikation für Lichtwellenleiter-Bandkabel für den
optiques utilisés dans les assemblages de câbles Einsatz in konfektionierten Kabeln
connectorisés (IEC 60794-2-30:2019)
(IEC 60794-2-30:2019)
This European Standard was approved by CENELEC on 2019-04-22. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,
Switzerland, Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60794-2-30:2019 E
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SIST EN IEC 60794-2-30:2019
EN IEC 60794-2-30:2019 (E)
European foreword
The text of document 86A/1704/CDV, future edition 3 of IEC 60794-2-30, prepared by SC 86A "Fibres
and cables" of IEC/TC 86 "Fibre optics" was submitted to the IEC-CENELEC parallel vote and
approved by CENELEC as EN IEC 60794-2-30:2019.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2020-01-22
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2022-04-22
document have to be withdrawn
This document supersedes EN 60794-2-30:2008.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Endorsement notice
The text of the International Standard IEC 60794-2-30:2019 was approved by CENELEC as a
European Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards
indicated:
IEC 60794-1-31 NOTE Harmonized as EN IEC 60794-1-31
IEC 60793-1-21 NOTE Harmonized as EN 60793-1-21
IEC 60794-1-24 NOTE Harmonized as EN 60794-1-24
IEC 60811-501 NOTE Harmonized as EN 60811-501
2
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SIST EN IEC 60794-2-30:2019
EN IEC 60794-2-30:2019 (E)
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
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.
NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60304 - Standard colours for insulation for low- HD 402 S2 -
frequency cables and wires
IEC 60793-1-20 - Optical fibres - Part 1-20: Measurement EN 60793-1-20 -
methods and test procedures - Fibre
geometry
IEC 60793-1-40 - Optical fibres - Part 1-40: Attenuation - -
measurement methods
IEC 60793-1-44 - Optical fibres - Part 1-44: Measurement EN 60793-1-44 -
methods and test procedures - Cut-off
wavelength
IEC 60793-2 - Optical fibres - Part 2: Product EN 60793-2 -
specifications - General
IEC 60793-2-10 - Optical fibres - Part 2-10: Product EN 60793-2-10 -
specifications - Sectional specification for
category A1 multimode fibres
IEC 60793-2-50 - Optical fibres - Part 2-50: Product EN IEC 60793-2-50 -
specifications - Sectional specification for
class B single-mode fibres
IEC 60794-1-1 - Optical fibre cables - Part 1-1: Generic EN 60794-1-1 -
specification - General
IEC 60794-1-2 - Optical fibre cables – Part 1-2: Generic EN 60794-1-2 -
specification – Basic optical cable test -
procedures – General guidance
IEC 60794-1-21 - Optical fibre cables - Part 1-21: Generic EN 60794-1-21 -
specification - Basic optical cable test
procedures - Mechanical tests methods
IEC 60794-1-22 - Optical fibre cables - Part 1-22: Generic EN IEC 60794-1-22 -
specification - Basic optical cable test
procedures - Environmental test methods
3
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SIST EN IEC 60794-2-30:2019
EN IEC 60794-2-30:2019 (E)
Publication Year Title EN/HD Year
IEC 60794-1-23 - Optical fibre cables - Part 1-23: Generic EN 60794-1-23 -
specification - Basic optical cable test
procedures - Cable element test methods
IEC 60794-2 2017 Optical fibre cables - Part 2: Indoor cables EN 60794-2 2017
- Sectional specification
IEC 60794-3 - Optical fibre cables - Part 3: Outdoor EN 60794-3 -
cables - Sectional specification
IEC 60811-202 - Electric and optical fibre cables - Test EN 60811-202 -
methods for non-metallic materials - Part
202: General tests - Measurement of
thickness of non-metallic sheath
IEC 60811-203 - Electric and optical fibre cables - Test EN 60811-203 -
methods for non-metallic materials - Part
203: General tests - Measurement of
overall dimensions
IEC 60811-504 - Electric and optical fibre cables - Test EN 60811-504 -
methods for non-metallic materials - Part
504: Mechanical tests - Bending tests at
low temperature for insulation and sheaths
4
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SIST EN IEC 60794-2-30:2019
IEC 60794-2-30
®
Edition 3.0 2019-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Optical fibre cables –
Part 2-30: Indoor cables – Family specification for optical fibre ribbon cables for
use in terminated cable assemblies
Câbles à fibres optiques –
Partie 2-30: Câbles intérieurs – Spécification de famille pour les câbles à rubans
de fibres optiques utilisés dans les assemblages de câbles connectorisés
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.180.10 ISBN 978-2-8322-6507-9
Warning! Make sure that you obtained this publication from an authorized distributor.
Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.
® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
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SIST EN IEC 60794-2-30:2019
– 2 – IEC 60794-2-30:2019 © 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 . 7
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 . 8
4.13 Identification . 8
4.14 Example of cable construction . 9
5 Dimensions. 9
5.1 Optical fibres and primary coating . 9
5.2 Ribbon structural geometry . 9
5.3 Optical fibre ribbon cable . 9
6 Tests . 10
6.1 General . 10
6.2 Dimensions . 10
6.3 Mechanical requirements . 10
6.3.1 Cable tensile performance . 10
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 . 11
6.3.7 Cable bending at low temperature . 11
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) . 13
6.5.5 Single-mode dispersion unshifted optical fibre (B1.3) . 14
6.5.6 Single-mode dispersion shifted optical fibre (B2) . 14
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SIST EN IEC 60794-2-30:2019
IEC 60794-2-30:2019 © IEC 2019 – 3 –
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) . 14
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 . 16
Annex B (informative) Family specification indoor cables – Optical fibre ribbon cables . 17
B.1 Blank detail specification . 17
B.1.1 Cable description . 17
B.1.2 Cable element . 18
B.1.3 Cable construction . 18
B.1.4 Installation and operating conditions . 18
B.1.5 Mechanical, environmental and fire performance tests . 19
B.2 Cables subject to the MICE environmental classification (ISO 11801-3 and
related standards) . 19
Bibliography . 21
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 . 16
Table 1 – Dimensions of optical fibre ribbon cables . 10
Table 2 – Temperature cycling conditions . 12
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 . 13
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 . 14
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 . 17
Table B.2 – Cable element . 18
Table B.3 – Cable construction . 18
Table B.4 – Installation and operating conditions . 19
Table B.5 – Tests applicable . 19
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SIST EN IEC 60794-2-30:2019
– 4 – IEC 60794-2-30:2019 © 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-
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.
International Standard IEC 60794-2-30 has been prepared by sub-committee 86A: Fibres and
cables, of IEC technical committee 86: Fibre optics.
This third edition cancels and replaces the second edition published in 2008. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) removal of Annex C;
b) reference to the most recent fibre standards;
c) reference to IEC 60794-1-21, IEC 60794-1-22, IEC 60794-1-23 and IEC 60794-1-24.
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SIST EN IEC 60794-2-30:2019
IEC 60794-2-30:2019 © IEC 2019 – 5 –
This standard is to be used in conjunction with IEC 60794-1-1, IEC 60794-1-2 and
IEC 60794-2.
The text of this International Standard is based on the following documents:
CDV Report on voting
86A/1704/CDV 86A/1808/RVC
Full information on the voting for the approval of this International Standard can be found in
the report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
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 "http://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.
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 document using a
colour printer.
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SIST EN IEC 60794-2-30:2019
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OPTICAL FIBRE CABLES –
Part 2-30: Indoor cables –
Family specification for optical fibre ribbon
cables for use in terminated cable assemblies
1 Scope
This part of IEC 60794 is a family specification which covers indoor optical fibre ribbon cables
for use in terminated cable assemblies. The requirements of the sectional specification
IEC 60794-2 are applicable to cables covered by this document.
The requirements of this document are written to define flat ribbon cables. This document can
be applicable to other cable constructions. Parts of IEC 60794-3 which are applicable for
ribbon tests are the subject of IEC 60794-1-31.
Annex B contains requirements that supersede the normal requirements in case the cables
1
are intended to be used in installation governed by the MICE table of ISO 11801-3 [4] .
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.
NOTE These reference complete the normative references already listed in the generic specifications
(IEC 60794-1-1 and IEC 60794-1-2).
IEC 60304, Standard colours for insulation for low-frequency cables and wires
IEC 60793-1-20, Optical fibres – Part 1-20: Measurement methods and test procedures –
Fibre geometry
IEC 60793-1-40, Optical fibres – Part 1-40: Measurement methods and test procedures –
Attenuation
IEC 60793-1-44, Optical fibres – Part 1-44: Measurement methods and test procedures – Cut-
off wavelength
IEC 60793-2, Optical fibres – Part 2: Product specifications – General
IEC 60793-2-10, Optical fibres – Part 2-10: Product specifications – Sectional specification for
category A1 multimode fibres
IEC 60793-2-50, Optical fibres – Part 2-50: Product specification – Sectional specification for
class B single-mode fibres
IEC 60794-1-1, Optical fibre cables – Part 1-1: Generic specification – General
__________
1
Numbers in square brackets refer to the Bibliography.
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SIST EN IEC 60794-2-30:2019
IEC 60794-2-30:2019 © IEC 2019 – 7 –
IEC 60794-1-2, Optical fibre cables – Part 1-2: Generic specification – Basic optical cable test
procedures – General guidance
IEC 60794-1-21, Optical fibre cables – Part 1-21: Generic specification – Basic optical cable
test procedures – Mechanical test methods
IEC 60794-1-22, Optical fibre cables – Part 1-22: Generic specification – Basic optical cable
test procedures – Environmental test methods
IEC 60794-1-23, Optical fibre cables – Part 1-23: Generic specification – Basic optical cable
test procedures – Cable element test methods
IEC 60794-2:2017, Optical fibre cables – Part 2: Indoor cables – Sectional specification
IEC 60794-3, Optical fibre cables – Part 3: Outdoor cables – Sectional specification
IEC 60811-202, Electric and optical fibre cables – Test methods for non-metallic materials –
Part 202: General tests – Measurement of thickness of non-metallic sheath
IEC 60811-203, Electric and optical fibre cables – Test methods for non-metallic materials –
Part 203: General tests – Measurement of overall dimensions
IEC 60811-504, Electric and optical fibre cables – Test methods for non-metallic materials –
Part 504: Mechanical tests – Bending tests at low temperature for insulation and sheaths
3 Terms and definitions
No terms and definitions are listed in this document.
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 Construction
4.1 General
In addition to the constructional requirements in IEC 60794-2, the following considerations
apply to ribbon cables for use in terminated cable assemblies.
The cable shall be designed and manufactured for a predicted operating lifetime of at least
15 years. In this context, the attenuation of the installed cable at the operational wavelength(s)
shall not exceed values agreed between the customer and the supplier. The materials in the
cable shall not present a health hazard within its intended use.
There shall be no fibre splice in a delivery length unless otherwise agreed by the customer
and the supplier.
It shall be possible to identify each individual fibre throughout the length of the cable.
4.2 Optical fibres and primary coating
Category A1 multimode fibres which meet the requirements of IEC 60793-2-10 or categories
B1.1, B1.2, B1.3, B2, B4, B5 and B6 single-mode optical fibres which meet the requirements
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of IEC 60793-2-50 shall be used. The linear coefficient of optical fibre attenuation and
attenuation point discontinuity may be affected by the cable manufacturing process. Maximum
values for these optical characteristics shall be agreed between the customer and the supplier.
4.3 Buffer
None.
4.4 Ruggedized fibre
None.
4.5 Slotted core
None.
4.6 Tube
None.
4.7 Stranded loose tube
None.
4.8 Ribbon structure
The ribbon struct
...
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