IEC 60794 2 Edition 4 0 201 7 06 INTERNATIONAL STANDARD NORME INTERNATIONALE Optical fibre cables – Part 2 Indoor cables – Sectional specification Câbles à fibres optiques – Partie 2 Câbles intérieurs[.]
General
Optical fibre shall be used which meets the requirements of IEC 60793-2 The fibre type shall be agreed between the customer and supplier.
Transmission requirements
The transmission requirements for cabled fibers must adhere to the specifications outlined in IEC 60794-2 (all parts), with specific values potentially negotiated between the customer and supplier Additionally, the attenuation coefficient should be measured following the guidelines of IEC 60793-1-40.
5 Cable elements and cable construction
General
Optical cables consist of multiple components tailored to their design, which considers factors such as application, operating environment, and manufacturing processes Additionally, these cables are engineered to safeguard the fiber during handling and installation.
The materials chosen for a cable element must be compatible with all other elements it contacts A suitable compatibility testing method should be outlined in the relevant family or detail specification.
To ensure compatibility between the fibre coating and the filling compound, it is essential to demonstrate the stability of the coating stripping force after accelerated ageing, following IEC 60794-1-21, method E5 Customers and suppliers may also agree on alternative ageing conditions and testing methods.
Optical elements are essential components of cable cores, consisting of optical fibers that serve as the primary functional unit Each optical element and its individual fibers are distinctly identified as outlined in section 5.1 3.
Testing of cable elements can be conducted on either uncabled components or completed cables Typically, unless stated otherwise, tests are carried out on finished cables This approach applies when the manufacturer of the cable elements also performs the cabling process.
IEC 60794-2:201 7 © IEC 201 7 – 7 – shall be performed on cable elements only if the cable element is supplied by a third party; this does not exclude testing of the finished cable
Testing of elements as defined in the applicable IEC 60794-2 series specification can be used as a guide for internal verification by a manufacturer.
Buffer
The buffer is made from an appropriate material that is applied either loosely or tightly over the coated fiber The spaces between the coated fiber and the loose buffer can be filled with a suitable, easily deformable material Additionally, the dimensions and stripability requirements must adhere to the specifications outlined in IEC 60794-2 (all parts).
Ruggedized fibre element
To enhance protection for one or more fibers, buffered fibers, ribbons, or polymeric tubes, they can be encased within a single sheath made of suitable material This protective structure is often referred to as a "breakout element" or "subcable."
Polymeric tube
When fibers are placed within a tube, they can be packaged as individual primary coated fibers or ribbons, either loosely or tightly This tube construction can be either filled or unfilled and may feature a reinforced composite wall for added strength.
If required, the suitability of the tube shall be determined by an evaluation of its kink resistance in accordance with IEC 60794-1 -23, method G7
If used, the filling compound in the tube shall comply with IEC 60794-1 -23, method G9 The filled tube shall comply with IEC 60794-1 -22, method F9, when tested in tube or cabled form.
Ribbon structure
When deploying fibres as a ribbon, it is essential to adhere to the IEC 60794-1-31 standard Typically, the fibres are organized into units containing two, four, six, eight, twelve, sixteen, or twenty-four fibres each.
Slotted core
The slotted core is created by extruding a specific material that features a predetermined number of slots, arranged in a helical or SZ configuration Each slot accommodates one or more primary coated fibers or optical elements, including ribbons or fiber bundles.
Strength and anti-buckling members
The cable must be engineered with adequate strength members to withstand installation and service conditions, ensuring that the fibers do not experience strain beyond the limits set forth in IEC 60794-1-1:2015, section 3.5.
The strength and anti-buckling components of cables can be made from either metallic or non-metallic materials These components may be positioned within the cable core, beneath the sheath, or integrated into the sheath itself.
1 Under preparation Stage at the time of publication: IEC CD 60494-1 -31 :201 7.
Electrical conductors
Electrical conductors can be categorized as bare or insulated, and they may consist of solid or stranded wires made from materials such as copper, aluminum, or their alloys Additionally, they include twisted pairs of insulated copper wires for balanced signals and coaxial conductors for unbalanced signals.
Lay-up of the cable elements
Optical elements can be arranged in various configurations, including: a) one or more optical elements without stranding; b) multiple homogeneous optical elements using helical or SZ configurations, with ribbon elements stacked; c) optical elements such as buffered fibers, ribbons, or polymeric tubes within a slotted core; d) buffered fibers or ribbons enclosed in a polymeric tube; and e) if necessary, the inclusion of electrical conductors as outlined in section 5.8.
If required, one or two ripcords may be provided beneath the sheath
If required, the suitability of the ripcord shall be determined by a functional test in accordance with IEC 60794-1 -21 , method E25
The cable core shall be uniformly covered with a protective sheath
If required, the cable shall be marked as agreed between the customer and the manufacturer
Common methods of marking are embossing, sintering, imprinting, hot foil and surface printing by inkjet or laser
The information given in the marking text may include cable length, the number of fibres, fibre type, manufacturer’s name and the production batch identification
The abrasion resistance of the sheath markings shall be demonstrated in accordance with IEC 60794-1 -21 , method E2B
The colour codes for fibre, tube, and sheath, as illustrated in Tables 1 and 2, represent standard identification systems Ultimately, the choice of an acceptable system is determined by mutual agreement between the customer and the manufacturer.
Coding is crucial for the unique identification of each fiber in a cable, typically achieved through the coloring of the fiber coating or buffer The coding scheme generally encompasses the identification of fibers, subunits, and units within the cable structure.
Standard colours shall be a reasonable match to IEC 60304 The colour code sequence shall be agreed between customer and the manufacturer, because it is not specified in IEC 60304
NOTE Colour coding is frequently governed by regional norms At the date of publication it was planned to issue a technical report gathering major colour codes
Unless otherwise specified, fibres in tubes shall be uniquely identified by different colours described in IEC 60304
Unless otherwise specified, subunits and units within the cables shall be uniquely identified
Units and subunits may be polymeric tubes, buffered fibres, ribbons or ruggedized fibre elements
The identification may be done by different colours, printed numbers, printed strings, positional identification, or other methods agreed between customer and manufacturer
In case of different colours of the units or subunits, the colours described in IEC 60304 may be used
Table 1 presents a color code scheme for units in hybrid or composite cables, which can also be applied to identify the color of individual units within a cable.
NOTE The term “hybrid” is used for cables comprising mixed media type, and the term “composite” for cables comprising mixed fibre types
Table 1 – Colour coding scheme for units in hybrid or composite cables (example)
Fibre type IEC 60793-2 category ISO/IEC 1 1 801 category 3
Single-mode fibre B1 , B2 and B6 1 OS1 or OS2 Yellow
Dispersion shifted single- mode fibre B4 and B5 1 None Red or yellow
50 à m core diameter A1 a.1 2 OM1 or OM2 Green
62,5 à m core diameter A1 b 2 OM1 or OM2 Blue
Other media for hybrid cable As agreed between customer and the manufacturer
3 For reference list for multimode fibre, see IEC 60793-2-1 0:201 5, Table H 3
Sheath colour coding is utilized to distinguish between different fibre types in cables or to indicate their specific applications, primarily in indoor cables.
The cable sheath must be color-coded or printed to indicate the fiber type Refer to Table 2 for the fiber types and an example of the color code for cable outer sheaths.
Table 2 – Colour coding of cable outer sheaths (example)
Cables with fibre type IEC 60793-2 category ISO/IEC 1 1 801 category 3
(cabled fibre) Colour of sheath
Single-mode fibre B1 , B2 and B6 1 OS1 or OS2 Yellow
Dispersion shifted single- mode fibre B4 and B5 1 none Red
50 à m core diameter A1 a.1 2 OM1 or OM2 Orange
(heather violet) 4 Multimode fibre with
62,5 à m core diameter A1 b 2 OM1 or OM2 Grey 5
3 For reference list for multimode fibre, see IEC 60793-2-1 0:201 5, Table H 3
4 Sheath of cables with OM4 can be alternatively coloured in turquoise, because it is backward compatible to OM3
5 Sheath of cables with 62, 5 μ m multimode fibre can be alternatively coloured in orange
6 Sheath of cables with 1 00 μ m multimode fibre can be alternatively coloured in orange
Examples are given in the family, detailed or product specifications of IEC 60794-2 (all parts)
Installation and operating conditions shall be agreed between the customer and supplier Guidance is given in IEC TR 62691
General 1 0
Verification of compliance with specification requirements involves conducting tests as outlined in the relevant family or detail specification The appropriate tests are listed in Tables 3 and 4 It is not necessary to perform all tests; instead, the testing frequency should be mutually agreed upon by the customer and the manufacturer.
IEC 60794-1-1 provides guidance on qualification sampling and the interpretation of test results It is essential that the number of tested fibers accurately represents the cable design, and this should be mutually agreed upon by both the customer and the manufacturer.
Characterization of cable elements 1 0
The following tests are intended to characterize the different types of cable elements
Table 3 – Characteristic of different types of cable elements
Characteristics Family requirements Test methods Remarks (#)
Bend IEC 60794-1 -23, method G1 Buffered fibre,polymeric tube, ruggedized fibre element
Tube kinking IEC 60794-1 -23, method G7 Bufferd fibre, polymeric tube Compound flow (drip) IEC 60794-1 -21 , method E1 4 Filled polymeric tube Bleeding and evaporation IEC 60794-1 -21 , method E1 5 Filling compound
Optical fibre cable tests 1 1
The following tests are intended to characterize indoor cables, as applicable.
Table 4 – Mechanical, environmental, electrical and dimensional applicable tests
Characteristics Family requirements Test methods Remarks
Sheath abrasion resistance IEC 60794-1 -21 , method E2A
Abrasion resitance of the sheath markings IEC 60794-1 -21 , method E2B
Stripping force stability of cabled optical fibres IEC 60794-1 -21 , method E5A
Ribbon stripping IEC 60794-1 -21 , method E5B Ribbon cables
Bend IEC 60794-1 -21 , method E1 1 Ambient, low and high temperature, as appropriate
Bending under tension IEC 60794-1 -21 , method E1 8A
Sheath pull-off force for patch cords IEC 60794-1 -21 , method E21
Buffered fibre movement under compression for patch cords IEC 60794-1 -21 , method E22
Water penetration IEC 60794-1 -22, method F5 Water-blocked cables Sheath shrinkage for patch cords IEC 60794-1 -22, method F1 1
Temperature cycling for patch cords IEC 60794-1 -22, method F1 2
Measurement of thickness of non-metallic sheath IEC 6081 1 -202
Measurement of overall dimensions IEC 6081 1 -203
Fire performance 1 2
IEC TR 62222 offers essential guidance on the fire performance requirements and testing methods for communication cables used in building installations It addresses common applications and installation practices while assessing potential fire hazards Additionally, the document considers relevant legislation and regulations to ensure compliance and safety.
IEC TR 62222 outlines various IEC fire performance test methods, along with additional tests mandated by local or national regulations The selection of tests and their requirements must be mutually agreed upon by the customer and supplier, considering the fire hazards associated with the intended end-use application of the cable.
Cable shall be supplied on reels or in coils suitably protected for transport, and the cable ends shall be sealed, if necessary, to prevent the ingress of moisture
Manufacturers must implement quality control procedures to ensure their products meet specified requirements If a purchaser wants to define acceptance tests beyond standard quality procedures, it is crucial to establish an agreement with the manufacturer at the time of order placement.
IEC 60794-1 -2, Optical fibre cables – Part 1-2: Generic specification – Basic optical cable test procedures – General and guidance
IEC 60794-1 -31 2 , Optical fibre cables – Part 1-31: Sectional specification for cable element – Optical fibre ribbons
IEC 60794-2-1 0, Optical fibre cables – Part 2-10: Indoor optical fibre cables – Family
IEC 60794-3, Optical fibre cables – Part 3: Outdoor cables – Sectional specification
IEC TR 62222, Fire performance of communication cables installed in buildings
IEC TR 62362, Selection of optical fibre cable specifications relative to mechanical, ingress, climatic or electromagnetic characteristics – Guidance
IEC TR 62691 , Optical fibre cables – Guide to the installation of optical fibre cables
IEC 62807-1 3 , Hybrid cables – Part 1: Hybrid telecommunication cables
2 Under preparation Stage at the time of publication: IEC CD 60794-1 -31 :201 7
3 Under preparation Stage at the time of publication: IEC CCDV 62807-1 :201 7
3 Termes, définitions, symboles et termes abrégés 20
5 Eléments de câble et construction des câbles 20
5.7 Renfort de traction et anti-déformation 22
5.9 Assemblage des éléments de câble 22
5.1 3.4 Codage par couleurs des gaines 24
5.1 4 Exemples de constructions de câble 25
6 Conditions d'installation et de fonctionnement 25
7.2 Caractérisation des éléments de câble 26
7.3 Essais sur les câbles à fibres optiques 26
Tableau 1 – Système de codage par couleurs pour des unités dans des câbles hybrides ou composites (exemple) 24
Tableau 2 – Codage par couleurs des gaines extérieures de câbles (exemple) 25
Tableau 3 – Caractéristiques de différents types d'éléments de câble 26
Tableau 4 – Essais mécaniques, d'environnement, électriques et dimensionnels applicables 27
CÂBLES À FIBRES OPTIQUES – Partie 2: Câbles intérieurs – Spécification intermédiaire
The International Electrotechnical Commission (IEC) is a global standards organization comprising national electrotechnical committees Its primary goal is to promote international cooperation on standardization issues in the fields of electricity and electronics To achieve this, the IEC publishes international standards, technical specifications, technical reports, publicly accessible specifications (PAS), and guides, collectively referred to as "IEC Publications." The development of these publications is entrusted to study committees, which allow participation from any national committee interested in the subject matter Additionally, international, governmental, and non-governmental organizations collaborate with the IEC in its work The IEC also works closely with the International Organization for Standardization (ISO) under conditions established by an agreement between the two organizations.
The official decisions or agreements of the IEC on technical matters aim to establish an international consensus on the topics under consideration, as each study committee includes representatives from the relevant national IEC committees.
The IEC publications are issued as international recommendations and are approved by the national committees of the IEC While the IEC makes every reasonable effort to ensure the technical accuracy of its publications, it cannot be held responsible for any misuse or misinterpretation by end users.
To promote international uniformity, IEC National Committees commit to transparently applying IEC Publications in their national and regional documents Any discrepancies between IEC Publications and corresponding national or regional publications must be clearly stated.
The IEC does not issue any conformity certificates itself Instead, independent certification bodies offer compliance assessment services and, in certain sectors, utilize IEC conformity marks The IEC is not responsible for any services provided by these independent certification organizations.
6) Tous les utilisateurs doivent s'assurer qu'ils sont en possession de la dernière édition de cette publication
The IEC, along with its directors, employees, agents, experts, and committee members, shall not be held liable for any injuries, damages, or costs arising from the publication or use of this IEC Publication or any other IEC Publication This includes direct or indirect damages and any associated legal expenses.
8) L'attention est attirée sur les références normatives citées dans cette publication L'utilisation de publications référencées est obligatoire pour une application correcte de la présente publication
It is important to note that some elements of this IEC publication may be subject to patent rights The IEC cannot be held responsible for failing to identify such patent rights or for not disclosing their existence.
La Norme internationale IEC 60794-2 a été établie par le sous-comité 86A: Fibres et câbles, du comité d'études 86 de l’IEC: Fibres optiques
Cette quatrième édition annule et remplace la troisième édition parue en 2002, dont elle constitue une révision technique
This edition includes significant technical modifications compared to the previous version: a) the specification has been streamlined to align with IEC 60794-1-1 and IEC TR 61931; b) the document structure has been aligned with IEC 60794-3, and Article 4 on optical fibers has been added; c) transmission requirements have been included in Article 4; d) electrical conductors and cable assembly elements have been introduced in Article 5 regarding cable elements and construction; e) paragraph 5.1.3 on identification has been divided into three parts: color coding of fibers, color coding of units, and color coding of sheaths; f) color coding proposals have been expanded to account for the latest fiber categories; g) Article 6 on installation and operating conditions has been added; h) testing on cable elements and cables has been simplified by replacing text with tables; i) a bibliography has been included.
Le texte de cette Norme internationale est issu des documents suivants:
Le rapport de vote indiqué dans le tableau ci-dessus donne toute information sur le vote ayant abouti à l'approbation de cette norme
Ce document a été rédigé selon les Directives ISO/IEC, Partie 2
Une liste de toutes les parties de la série IEC 60794, publiées sous le titre général Câbles à fibres optiques, peut être consultée sur le site web de l'IEC
The committee has determined that the content of this document will remain unchanged until the stability date specified on the IEC website at "http://webstore.iec.ch" in relation to the requested document On that date, the document will be updated.
• remplacé par une édition révisée, ou
IMPORTANT – The "colour inside" logo on the cover of this publication signifies that it contains colors essential for a better understanding of its content Users are therefore encouraged to print this publication using a color printer.
CÂBLES À FIBRES OPTIQUES – Partie 2: Câbles intérieurs – Spécification intermédiaire
This section of IEC 60794 serves as an interim specification outlining the requirements for indoor optical fiber cables intended for use in communication networks It may also be relevant to consider other types of applications that require similar cable types.
The following documents referenced in the text contain requirements that are integral to this document For dated references, only the cited edition is applicable For undated references, the latest edition of the referenced document applies, including any amendments.
IEC 60304, Couleurs de référence de l'enveloppe isolante pour câbles et fils pour basses fréquences
IEC 60793-1 -40, Fibres optiques – Partie 1-40: Méthodes de mesure et procédures d’essai – Affaiblissement
IEC 60793-2, Fibres optiques – Partie 2: Spécifications de produits – Généralités
IEC 60793-2-1 0:201 5, Fibres optiques – Partie 2-10: Spécifications de produits – Spécification intermédiaire pour les fibres multimodales de catégorie A1
IEC 60793-2-50, Fibres optiques – Partie 2-50: Spécifications de produits – Spécification intermédiaire pour les fibres unimodales de classe B
IEC 60794-1 -1 :201 5, Optical fibre cables – Part 1-1: Generic specification – General
IEC 60794-1 -21 , Optical fibre cables – Part 1-21: Generic specification – Basic optical cable test procedures – Mechanical tests methods (disponible en anglais seulement)
IEC 60794-1 -22, Optical fibre cables – Part 1-22: Generic specification – Basic optical cable test procedures – Environmental test methods (disponible en anglais seulement)
IEC 60794-1 -23, Optical fibre cables – Part 1-23: Generic specification – Basic optical cable test procedures – Cable element test methods (disponible en anglais seulement)
IEC 60794-1 -24, Câbles à fibres optiques – Partie 1-24: Spécification générique – Méthodes fondamentales d'essais applicables aux câbles optiques – Méthodes d'essais électriques
IEC 60794-2 (toutes les parties), Câbles à fibres optiques – Partie 2: Câbles intérieurs
IEC 6081 1 -202, Câbles électriques et à fibres optiques – Méthodes d’essai pour les matériaux non métalliques – Partie 202: Essais généraux – Mesure de l'épaisseur des gaines non métalliques
IEC 6081 1 -203, Câbles électriques et à fibres optiques – Méthodes d’essai pour les matériaux non métalliques – Partie 203: Essais généraux – Mesure des dimensions extérieures
IEC TR 61 931 , Fibres optiques – Terminologie
ISO/IEC 1 1 801 , Information technology – Generic cabling for customer premises (disponible en anglais seulement)
3 Termes, définitions, symboles et termes abrégés
Pour les besoins du présent document, les termes, définitions, symboles et termes abrégés de l'IEC 60794-1 -1 et l'IEC TR 61 931 s'appliquent
L'ISO et l'IEC tiennent à jour des bases de données terminologiques destinées à être utilisées en normalisation, consultables aux adresses suivantes:
• IEC Electropedia: disponible à l'adresse http://www.electropedia.org/
• ISO Online browsing platform: disponible à l'adresse http://www.iso.org/obp
Généralités
Les fibres optiques utilisées doivent satisfaire aux exigences de l'IEC 60793-2 Le type de fibre doit faire l’objet d’un accord entre le client et le fournisseur.
Exigences de transmission
The transmission requirements for fiber cables must adhere to the specifications outlined in IEC 60794-2 (all parts), whether they are family, specific, or product standards Specific values may be subject to agreement between the client and the supplier Additionally, linear attenuation must be measured in accordance with IEC 60793-1-40.
5 Eléments de câble et construction des câbles
Généralités
Optical cables typically consist of multiple individual components, tailored to the cable's design based on its application, operational environment, manufacturing processes, and the need to protect the fiber during handling and installation.
The materials used in the composition of a cable element must be selected to ensure compatibility with other components they come into contact with An appropriate compatibility testing method should be outlined in the family or specific specification.
When fibers come into contact with a filling material, it is essential to demonstrate the compatibility of the filling material with the fiber coating This can be achieved by conducting a stripping force stability test after accelerated aging, in accordance with IEC 60794-1-21 method E5 Additional tests and aging conditions may be agreed upon between the client and the supplier.
Optical elements are components of cables that contain optical fibers and are designed to serve as a primary functional unit at the core of the cable They may include any of the cable elements described below.
IEC 60794-2:201 7 © IEC 201 7 – 21 – les fibres placées dans un élément de câble doivent être identifiés de manière unique comme cela est décrit en 5.1 3
Testing can be conducted on cable elements either in the form of unfinished cables or finished cables Unless specified otherwise, tests should be performed on cable elements included in a finished cable This means that testing should only occur on a finished cable when the same manufacturer produces both the cable elements and their assembly to create the final cable Testing on cable elements is only permissible if they are supplied by a third party; however, this does not exclude testing on the finished cable.
Les essais des éléments définis dans la spécification de la série IEC 60794-2 applicable peuvent servir de guide au fabricant pour effectuer des vérifications internes.
Matelas protecteur
The protective mattress is made from a suitable material that is applied loosely or tightly over the fiber coating Gaps between the underlying fiber and a loose protective mattress can be filled with an appropriate and easily deformable material The dimensional and stripping requirements must comply with the family, specific, or product specifications outlined in EC 60794-2 (all parts).
Elément de fibre renforcé
An additional layer of protection can be applied to one or more fibers, such as protective mattress fibers, ribbons, or polymer tubes, with or without tensile reinforcement, by placing them inside a unique protective sheath made from an adaptive material This component may be referred to as a "burst element" or "cable sub-assembly."
Tube polymère
When fibers are deployed within a tube, one or more primary-coated fibers or ribbons are loosely or tightly arranged inside the tube, which may or may not be filled The tube can also be reinforced with a composite wall.
Si nécessaire, l’aptitude du tube doit être déterminée par une évaluation de sa résistance à la pliure (effet de paille) conformément à la méthode G7 de l'IEC 60794-1 -23
If a filling material is used in the tube, it must comply with the G9 method of IEC 60794-1-23 Additionally, the filled tube must adhere to the F9 method of IEC 60794-1-22 when tested in either tube form or cable form.
Structure en ruban
When fibers are arranged in a ribbon format, it is essential that the ribbon structure complies with IEC 60794-1-31 standards The fibers should be grouped into units typically consisting of two, four, six, eight, twelve, sixteen, or twenty-four fibers each.
Jonc rainuré
The grooved rod is produced by extruding a suitable material with a specific number of notches, resulting in a helical or SZ configuration along the core Each notch accommodates one or more primary-coated fibers or optical elements such as ribbons or fiber bundles.
1 En préparation Stade au moment de la publication: IEC CD 60494-1 -31 :201 7.
Renfort de traction et anti-déformation
In general, the cable must have a sufficient number of reinforcement elements to meet installation and service conditions without subjecting the fibers to stress that exceeds the limits specified in section 3.5 of IEC 60794-1-1:2015.
Reinforcement and anti-deformation elements can be either metallic or non-metallic, and they may be positioned within the core of the cable, beneath the sheath, or within the sheath itself.
Conducteurs électriques
Electrical conductors can be solid or stranded wires, either bare or insulated, made from copper, aluminum, or alloys They include twisted pairs of insulated copper wires for symmetrical signals and coaxial conductors for asymmetrical signals.
Assemblage des éléments de câble
Optical elements, as described in sections 5.2 to 5.8, can be assembled in various configurations: a) one or more optical elements without twisting; b) several homogeneous optical elements arranged in a helical or SZ configuration (ribbon-type elements can be stacked in pairs or more); c) multiple optical elements such as fibers under protective mattresses, ribbons, or grooved polymer tubes; d) several optical elements like fibers under protective mattresses or ribbons within a polymer tube; e) if necessary, electrical conductors as outlined in section 5.8.
Si nécessaire, un ou deux filins de déchirement peuvent être prévus sous la gaine du câble
Si nécessaire, l’aptitude du filin de déchirement doit être déterminée par un essai fonctionnel conformément à la méthode E25 de l'IEC 60794-1 -21
Le cœur du câble doit être recouvert de manière uniforme par une gaine de protection
Si nécessaire, le câble doit être marqué conformément aux décisions prises par accord entre le client et le fabricant
Les méthodes de marquage les plus courantes sont le marquage en relief, par flocage, en creux, par métallisation à chaud et par impression à jet d'encre ou laser
The labeling information may include details such as cable length, number of fibers, fiber type, manufacturer's name, and production lot identification.
La résistance à l'abrasion des marquages effectués sur la gaine doit être démontrée conformément à la méthode E2B de l'IEC 60794-1 -21
The color codes for fibers, tubes, and sheaths presented in Tables 1 and 2 serve as examples of potential reference color identification systems Ultimately, it is the client who determines the acceptable system, based on an agreement between the client and the manufacturer.
Coding is crucial for the unique identification of each fiber within a cable Typically, fiber coding involves coloring the protective coating or sheath of the fibers The coding system employed generally requires the coding of fibers, sub-units, and units located inside the cable.
Reference colors should reasonably align with those specified in IEC 60304 Since the sequence of color codes is not defined in IEC 60304, it must be agreed upon between the client and the manufacturer.
Color coding is often governed by regional standards At the time of publication, there were plans to release a technical report compiling the main color codes.
Sauf spécification contraire, les fibres placées dans des tubes doivent être identifiées de manière unique par des couleurs différentes décrites dans l'IEC 60304
Sauf indication contraire, les sous-unités et les unités placées dans les câbles doivent être identifiées de manière unique
Les unités et les sous-unités peuvent être des tubes polymères, des fibres sous matelas protecteur, des rubans ou des éléments de fibre renforcés
Identification can be achieved through various methods, including the use of different colors, the printing of numbers, or characters, based on positioning, as well as other techniques agreed upon between the client and the manufacturer.
Si les couleurs des unités ou des sous-unités sont différentes, les couleurs décrites dans l'IEC 60304 peuvent être utilisées
Table 1 provides an example of a color coding system for units in hybrid or composite cables This color code can also be applied to the color coding of a single unit within a cable.
NOTE Le terme "hybride" est utilisé pour les câbles comprenant plusieurs types de supports, et le terme
"composite" est utilisé pour les câbles comprenant plusieurs types de fibres
Tableau 1 – Système de codage par couleurs pour des unités dans des câbles hybrides ou composites (exemple)
Type de fibre Catégorie de l'IEC 60793-2 Catégorie de l'ISO/IEC 1 1 801 3 (fibre câblée)
Fibre unimodale B1 , B2 et B6 1 OS1 ou OS2 Jaune
Fibre unimodale à dispersion décalée B4 et B5 1 Aucune Rouge ou jaune
Fibre multimodale avec diamètre du cœur de
Fibre multimodale avec diamètre du cœur de
Fibre multimodale avec diamètre du cœur de
Fibre multimodale avec diamètre du cœur de
Fibre multimodale avec diamètre du cœur de
Autre support pour câble hybride Selon accord entre le client et le fabricant
3 Une liste de référence des fibres multimodales est donnée dans le Tableau H.3 de l'IEC 60793-2-1 0:201 5
5.1 3.4 Codage par couleurs des gaines
Color coding of cable sheaths can be utilized to identify the types of fibers within the cable or its application This method is most commonly applied to indoor cables.
The cable sheath must feature color coding or an alternative printing that indicates the type of fiber Table 2 provides the types of fibers along with an example of a color code for outdoor cable sheaths.
Tableau 2 – Codage par couleurs des gaines extérieures de câbles (exemple)
Câbles avec type de fibre Catégorie de l'IEC 60793-2 Catégorie de l'ISO/IEC 1 1 801 3 (fibre câblée)
Fibre unimodale B1 , B2 et B6 1 OS1 ou OS2 Jaune
Fibre unimodale à dispersion décalée B4 et B5 1 Aucune Rouge
Fibre multimodale avec diamètre du cœur de
Fibre multimodale avec diamètre du cœur de
Fibre multimodale avec diamètre du cœur de
Fibre multimodale avec diamètre du cœur de
Fibre multimodale avec diamètre du cœur de
3 Une liste de référence des fibres multimodales est donnée dans le Tableau H.3 de l'IEC 60793-2-1 0:201 5
4 En variante, les gaines de câbles OM4 peuvent être de couleur turquoise, parce qu'elles présentent une compatibilité amont avec celles de la catégorie OM3
5 En variante, les gaines de câbles pour fibres multimodales avec un diamètre de cœur de 62,5 μ m peuvent être de couleur orange
6 En variante, les gaines de câbles pour fibres multimodales avec un diamètre de cœur de 1 00 μ m peuvent être de couleur orange
5.1 4 Exemples de constructions de câble
Des exemples sont donnés dans les spécifications de famille, particulière ou de produit de l'IEC 60794-2 (toutes les parties)
6 Conditions d'installation et de fonctionnement
Les conditions d'installation et de fonctionnement doivent faire l'objet d'un accord entre le client et le fournisseur Des préconisations sont données dans l'IEC TR 62691
Généralités
Compliance with the specification requirements must be verified by conducting the necessary tests outlined in the applicable family or specific specification Appropriate tests are detailed in Tables 3 and 4 Not all tests are mandatory; the frequency of testing should be agreed upon between the client and the manufacturer.
The IEC 60794-1-1 provides guidelines for qualification sampling and the interpretation of test results The number of fibers tested must be representative of the cable design and should be agreed upon by both the client and the manufacturer.
Caractérisation des éléments de câble
Les essais suivants sont destinés à caractériser les différents types d'éléments de câble
Tableau 3 – Caractéristiques de différents types d'éléments de câble
Caractéristiques Exigences de famille Méthodes d’essais Remarques (#)
The IEC 60794-1 standard outlines various methods for testing fiber optic cables, including method G1, which focuses on the curvature of protective mattress fibers within polymer tubes, and method G7, which addresses the bending effect of the tube Additionally, the standard discusses the flow characteristics of the filling mixture used in these cables.
IEC 60794-1 -21 , méthode E1 4 Tube polymère rempli
Exsudation et évaporation IEC 60794-1 -21 , méthode E1 5 Mélange de remplissage
Essais sur les câbles à fibres optiques
Les essais suivants sont destinés à caractériser les câbles intérieurs, selon le cas.
Tableau 4 – Essais mécaniques, d'environnement, électriques et dimensionnels applicables
Caractéristiques Exigences de famille Méthodes d’essais Remarques
Affaiblissement de fibres câblées IEC 60793-1 -40
Performances en traction IEC 60794-1 -21 , méthode E1
Résistance à l'abrasion de la gaine IEC 60794-1 -21 , méthode E2A
Résistance à l'abrasion des marquages effectués sur la gaine
Stabilité de la force de dénudage des fibres optiques câblées
Dénudabilité du ruban IEC 60794-1 -21 , méthode E5B Câbles à rubans
Flexion des câbles IEC 60794-1 -21 , méthode E8
Pliure (effet de paille) IEC 60794-1 -21 , méthode E1 0
Courbure IEC 60794-1 -21 , méthode E1 1 Température ambiante, faible et élevée, selon le cas
Courbure sous traction IEC 60794-1 -21 , méthode E1 8A
Force d'arrachement de la gaine pour les cordons de brassage
Mouvement des fibres sous matelas protecteur sous l’effet d’une compression pour les cordons de brassage
Cycles de température IEC 60794-1 -22, méthode F1
Pénétration d'eau IEC 60794-1 -22, méthode F5 Câbles étanches à l'eau Rétrécissement de gaine pour les cordons de brassage IEC 60794-1 -22, méthode F1 1
Cycles de température pour les cordons de brassage IEC 60794-1 -22, méthode F1 2
Mesure de l'épaisseur des gaines non métalliques IEC 6081 1 -202
Mesure des dimensions extérieures IEC 6081 1 -203
Comportement au feu
IEC TR 62222 provides guidelines and recommendations regarding the fire performance requirements and testing methods for communication cables installed in buildings These recommendations are associated with typical applications and installation practices, along with a fire risk assessment Additionally, relevant legislation and regulations are also considered.
The IEC TR 62222 references various IEC fire behavior testing methods, along with additional testing procedures that may be mandated by local or national regulations The tests and requirements to be applied should be agreed upon between the client and the supplier, considering the fire risk associated with the final application for which the cable is intended.
The cable must be supplied on properly protected reels or coils for transport, and the ends of the cable should be sealed, if necessary, to prevent moisture ingress.
It is the manufacturer's responsibility to establish a quality assurance system through quality control procedures that ensure the product meets the requirements outlined in this document If the buyer wishes to specify acceptance tests according to different quality procedures, it is crucial that an agreement is reached between the client and the manufacturer at the time of the order.
IEC 60794-1 -2, Câbles à fibres optiques – Partie 1-2: Spécification générique – Procédures fondamentales d’essais des câbles optiques – Lignes directrices générales
IEC 60794-1 -31 2 , Optical fibre cables – Part 1-31: Sectional specification for cable element – Optical fibre ribbons (disponible en anglais seulement)
IEC 60794-2-1 0, Câbles à fibres optiques – Partie 2-10: Câbles intérieurs à fibres optiques – Spécification de famille pour les câbles simplex et duplex
IEC 60794-3, Câbles à fibres optiques – Partie 3: Câbles extérieurs – Spécification intermédiaire
IEC TR 62222, Tenue au feu des câbles de communication installés dans les bâtiments
IEC TR 62362, Selection of optical fibre cable specifications relative to mechanical, ingress, climatic or electromagnetic characteristics – Guidance (disponible en anglais seulement)
IEC TR 62691 , Optical fibre cables – Guide to the installation of optical fibre cables
IEC 62807-1 3 , Hybrid cables – Part 1: Hybrid telecommunication cables (disponible en anglais seulement)
2 En préparation Stade au moment de la publication: IEC CD 60494-1 -31 :201 7
3 En préparation Stade au moment de la publication: IEC CCDV 62807-1 :201 7.