CLC/TC 86A - Optical fibres and optical fibre cables

IEC 60794-2-50: 2020 specifies requirements for simplex and duplex optical fibre cables for use in terminated cable assemblies or for termination with optical fibre passive components. This second edition cancels and replaces the first edition published in 2008. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:  update of the normative references; review and update of parameters and requirements ...view more

IEC 60793-2:2019 is available as IEC 60793-2:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60793-2:2019 contains the general specifications for both multimode and single-mode optical fibres. Sectional specifications for each of the four categories of multimode fibres: A1, A2, A3, and A4 (part of the multimode fibre class A) contain requirements specific to each category. Sectional spec...view more

IEC 60794-1-23:2019 is available as IEC 60794-1-23:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC 60794-1-23:2019 describes test procedures to be used in establishing uniform requirements for the geometrical, material, mechanical, environmental properties of optical fibre cable elements. This document applies to optical fibre cables for use with telecommunication equipment and devices ...view more

IEC 60793-2-10:2017 is applicable to optical fibre sub-categories A1a, A1b, and A1d. These fibres are used or can be incorporated in information transmission equipment and optical fibre cables. Sub-category A1a applies to 50/125 mm graded index fibre. Four bandwidth grades are defined as models A1a.1, A1a.2, A1a.3 and A1a.4. Each of these bandwidth grades is defined for two levels of macrobend loss performance that are distinguished by "a" or "b" suffix. Those models with suffix "a" are specifie...view more

IEC 60794-2-21:2019 is available as IEC 60794-2-21:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60794-2-21:2019 presents the detailed requirements specific to this type of cable to ensure compatibility with the series of International Standards ISO/IEC 11801, Information technology – Generic cabling for customer premises (Parts 1 to 6). The requirements of family specification IEC 607...view more

IEC 60794-2-31:2019 is available as IEC 60794-2-31:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60794-2-31:2019 presents the detailed requirements specific to this type of cable to ensure compatibility with the series of International Standards ISO/IEC 11801, Information technology – Generic cabling for customer premises (Parts 1 to 6). The requirements of family specification IEC 607...view more

IEC 60794-2-11:2019 is available as IEC 60794-2-11:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC 60794-2-11:2019 presents the detailed requirements specific to this type of cable to ensure compatibility with the series of International Standards ISO/IEC 11801, Information technology – Generic cabling for customer premises (Parts 1 to 6). The requirements of family specification IEC 60...view more

This part of IEC 60793 establishes uniform requirements for measuring the attenuation of optical fibre, thereby assisting in the inspection of fibres and cables for commercial purposes. Four methods are described for measuring attenuation, one being that for modelling spectral attenuation: - method A: cut-back; - method B: insertion loss; - method C: backscattering; - method D: modelling spectral attenuation. Methods A to C apply to the measurement of attenuation for all categories of the follow...view more

IEC 60794-2-30:2019 is available as IEC 60794-2-30:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC 60794-2-30:2019 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 ...view more

This part of IEC 60793 provides values of the tensile strength under dynamic loading of optical fibre samples. The method tests individual lengths of uncabled and unbundled glass optical fibre. Sections of fibre are broken with controlled increasing stress or strain that is uniform over the entire fibre length and cross section. The stress or strain is increased at a nominally constant rate until breakage occurs. The distribution of the tensile strength values of a given fibre strongly depends o...view more

This blank detail specification describes parameters that can be considered for simplex and duplex optical fibre cables for use in terminated cable assemblies or for termination with optical fibre passive components.

This part of IEC 60793 is applicable to optical fibre categories B-652, B-653, B-654, B-655, B-656 and B-657. A map illustrating the connection of IEC designations to ITU-T designations is shown in Table 1. These fibres are used or can be incorporated in information transmission equipment and optical fibre cables. Three types of requirements apply to these fibres: - general requirements, as defined in IEC 60793-2; - specific requirements common to the class B single-mode fibres covered in this d...view more

This part of IEC 60793 is intended primarily for testing either fibres as produced by a fibre manufacturer or subsequently overcoated (tight buffered) using various polymers. The test can be performed either on fibres as produced, or after exposure to various environments. This test applies to A1, A2, A3, B and C fibres with a nominal glass dimension of 125 µm. The object of this document is to establish uniform requirements for the mechanical characteristic - coating strippability. This test qu...view more

IEC 60793-49:2018 applies only to multimode, graded-index glass-core (category A1) fibres. The test method is commonly used in production and research facilities, but is not easily accomplished in the field. This document describes a method for characterizing the modal structure of a graded-index multimode fibre. This information is useful for assessing the bandwidth performance of a fibre especially when the fibre is intended to support a range of launch conditions, for example, those produced ...view more

NEW!IEC 60794-4-20:2018 is available as IEC 60794-4-20:2018 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60794-4-20:2018 covers optical telecommunication cables, commonly with single-mode fibres used primarily in overhead power lines applications. The cables can also be used in other overhead utility networks, such as for telephony or TV services. Requirements of the sectional specificatio...view more

Specifies the electrical, mechanical and optical requirements and test methods for aerial optical cables including OPGW (optical ground wire), OPPC (optical phase conductor), MASS (metalic aerial self-supported cable), ADSS (all-dielectric self-supporting cable) and OPAC (optical attached cable).

IEC 60794-1-31:2018(E) which is a generic specification, covers optical fibre ribbons. Requirements which are described in this part apply to optical fibre ribbon cables for use with telecommunication equipment and devices employing similar techniques, in particular optical fibre cables in IEC 60794-2 for indoor use and in IEC 60794-3 for outdoor use. Detailed specifications for each application are given in IEC 60794-2 and IEC 60794-3. Keywords: optical fibre ribbons

NEW!IEC 60793-1-54:2018 is available as IEC 60793-1-54:2018 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC 60793-1-54:2018 outlines a method for measuring the steady state response of optical fibres and optical cables exposed to gamma radiation. It can be employed to determine the level of radiation-induced attenuation produced in Class B single-mode or Class A, category A1 and A2 multimode...view more

NEW!IEC 60793-1-45:2017 is available as IEC 60793-1-45:2017 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60793-1-45:2017 establishes uniform requirements for measuring the mode field diameter (MFD) of single-mode optical fibre, thereby assisting in the inspection of fibres and cables for commercial purposes. This second edition cancels and replaces the first edition published in 2001. This...view more

NEW!IEC 60793-1-47:2017 is available as IEC 60793-1-47:2017 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC 60793-1-47:2017 establishes uniform requirements for measuring the macrobending loss of single-mode fibres (class B) at 1 550 nm or 1 625 nm, category A1 multimode fibres at 850 nm or 1 300 nm, and category A3 and A4 multimode fibres at 650 nm, 850 nm or 1 300 nm, thereby assisting in ...view more

NEW!IEC 60794-1-22:2017 is available as IEC 60794-1-22:2017 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60794-1-22:2017 defines test procedures to be used in establishing uniform requirements for the environmental performance of: - optical fibre cables for use with telecommunication equipment and devices employing similar techniques, and - cables having a combination of both optical fibre...view more

Applies to three methods of measuring polarization mode dispersion (PMD). Establishes uniform requirements for measuring the PMD of single-mode optical fibre, thereby assisting in the inspection of fibres and cables for commercial purposes. In this edition, reference to IEC 61282-9 has resulted in the removal of Annexes E, F, G and H as well as the creation of a new Annex E.

IEC 60793-1-33:2017 contains descriptions of the five main test methods for the determination of stress corrosion susceptibility parameters. The object of this document is to establish uniform requirements for the mechanical characteristic of stress corrosion susceptibility for silica-based fibres. Dynamic fatigue and static fatigue tests are used to determine the (dynamic) nd value and (static) ns value of stress corrosion susceptibility parameters. Currently, only the nd-value is assessed agai...view more

IEC 60793-2-10:2017 is applicable to optical fibre sub-categories A1a, A1b, and A1d. These fibres are used or can be incorporated in information transmission equipment and optical fibre cables. Sub-category A1a applies to 50/125 mm graded index fibre. Four bandwidth grades are defined as models A1a.1, A1a.2, A1a.3 and A1a.4. Each of these bandwidth grades is defined for two levels of macrobend loss performance that are distinguished by "a" or "b" suffix. Those models with suffix "a" are specifie...view more

IEC 60794-2:2017 is a sectional specification. It gives the requirements that apply to optical fibre cables for indoor use in communications networks. Other types of applications requiring similar types of cables can be considered. This fourth edition cancels and replaces the third edition published in 2002. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - the specification has been streamline...view more

IEC 60794-1-3:2017(E) is a generic specification covering optical cable elements. Requirements which are described in this document apply to elements of optical fibre cables for use with telecommunication equipment and devices employing similar techniques. The elements which are the subject of this document are those which apply to several cable types of IEC 60794 (all parts) and as defined by sectional specifications IEC 60794-2, IEC 60794-3, IEC 60794‑4, and IEC 60794-5. The requirements for c...view more

This part of IEC 60793 is applicable to optical fibre types D1, D2, D3, as described in Table 1. These fibres are polarization-maintaining fibre types, and are used or can be incorporated in information transmission equipment and optical fibre cable. These fibres are available for use in optical transport networks. Three types of requirements apply to these fibres: - general requirements defined in IEC 60793-2; - specific requirements common to the category D polarization-maintaining fibres cove...view more

IEC 60793-1-61: 2017 establishes uniform requirements for measuring the polarization crosstalk of polarization-maintaining (PM) fibres. This document gives two methods for measuring the polarization crosstalk of PM fibres. Method A is the power ratio method, which uses the maximum and minimum values of output power at a specified wavelength, and Method B is the in-line method, which uses an analysis of the Poincaré sphere. Details of each method are described in Clause 6. Crosstalk values obtain...view more

IEC 60793-1-60: 2017 defines test methods for both the phase beat length, and the group beat length. These two parameters are defined differently, and will give different results depending on the type of polarization-maintaining (PM) fibre. The phase beat length is the relevant parameter for the fibres ability to maintain a high extinction ratio. This is described in more details in Annexes A and B.
Keywords: phase beat length, high extinction

NEW!IEC 60793-1-1:2017 is available as IEC 60793-1-1:2017 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 60793-1-1: 2017 lists and gives guidance on the use of documents giving the uniform requirements for measuring and testing optical fibres, thereby assisting in the inspection of fibres and cables for commercial (mostly telecommunications) purposes. The individual measurement and test me...view more

IEC 60794-1-2: 2017 applies to optical fibre cables for use with telecommunications equipment and devices employing similar techniques, and to cables having a combination of both optical fibres and electrical conductors. The prime objective of this document is to provide the end user with an overview about the content of different parts of the IEC 60794-1 series numbered -2X. Table 1 shows the different parts.  Table 1 – Document overview     Test methods  IEC reference    General guidance...view more

IEC 60794-2-22: 2016 is a detail specification and specifies breakout optical cables with multiple simplex fibre cables for termination with connectors. The requirements of the sectional specification IEC 60794-2 are applicable to cables covered by this document. The requirements of the family specification IEC 60794-2-20 are applicable to breakout cables to be installed without terminated connectors. Fan-out kits used for cable systems are not covered by this document. Keywords: breakout optica...view more

IEC 60794-5:2014 which is a sectional specification, specifies the requirements of microduct optical fibre cables, microduct fibre units, microducts and protected microducts for installation by blowing for outdoor and/or indoor use. The microduct optical fibre cables and microduct fibre units utilize the structure of the microduct or protected microducts to support installation and to provide protection over the design lifetime. These products may be used for applications such as communication a...view more

IEC 60794-3-20:2008(E) covers optical self-supporting aerial telecommunication cables. Requirements of the sectional specification IEC 60794-3 for duct, buried and aerial cables are applicable to cables covered by this standard. This second edition cancels and replaces the first edition published in 2002. It constitutes a technical revision. The main changes are listed below: - the fibres specification clause (Clause 5) has been enlarged to include fibre Types B5 and B6.a; - an annex has been ad...view more

This European standard specifies the details for the point of failure, continuity, checking arrangement, test sample, test procedure and test report relevant to optical fibre cables tested as described either in EN 50200 or in EN 50577. The test determines the survival time for circuit integrity of the optical fibre cables when exposed to fire under the conditions either given in EN 50577 or given in EN 50200. EN 50200 is limited to cables with an overall diameter not exceeding 20 mm. This stand...view more

IEC 60793-2:2011 contains the general specifications for both multimode and single-mode optical fibres. Sectional specifications for each of the four categories multimode class: A1, A2, A3, and A4 contain requirements specific to each category. Sectional specifications for each of the two single-mode classes, B and C, contain requirements common to each class. Each sectional specification includes family specifications (in normative annexes) that contain requirements for the applicable category ...view more

This Technical Specification specifies the processes to be employed for the repair of damage to installed optical fibre cabling by reinstatement of the outer sheath or the replacement of an optical fibre cable between existing closures with the objective of restoring its pre-damaged performance and in order to maintain pathway capacity. Interim repair procedures, including temporary and/or partial repairs including the introduction of additional joints of connections, which deliver the minimum f...view more

IEC 60794-3-70:2016 is part of 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 may be used wherever a rapid or multiple deployment is relevant (e.g. mobile broadcast units, emergency rescue services, outdoor motion-robotics, etc.). This publication is to be read in conjunction with IEC 60794-1-1:2015, IEC 60794-1-2:2013 and IEC 60794-3:2014. Key...view more

IEC corrigendum

IEC 60793-2-40:2015(E) is applicable to category A4 optical multimode fibres and the related sub-categories A4a, A4b, A4c, A4d, A4e, A4f, A4g and A4h. These fibres have a plastic core and plastic cladding and may have step-index, multi-step index or graded-index profiles. The fibres are used in information transmission equipment and other applications employing similar light transmitting techniques, and finally in fibre optic cables. Table 1 of this document summarizes some of the salient charac...view more

IEC 60793-2-50:2015 is applicable to optical fibre categories B1.1, B1.2, B1.3, B2, B4, B5 and B6. A map illustrating the connection of IEC designations to ITU-T designations is shown in Annex I. These fibres are used or can be incorporated in information transmission equipment and optical fibre cables. Three types of requirements apply to these fibres: - general requirements, as defined in IEC 60793-2; - specific requirements common to the class B single-mode fibres covered in this standard and...view more

IEC 60793-2-20:2015(E) is applicable to sub-categories A2a, A2b, and A2c. These fibres are used or can be incorporated in information transmission equipment and optical fibre cables (typically up to 2 km). Three types of requirements apply to these fibres: - general requirements as defined in IEC 60793-2; - specific requirements common to the category A2 multimodal fibres covered in this standard and which are given in Clause 3; - particular requirements applicable to individual sub-categories o...view more

IEC 60794-3-21:2015(E) is a product specification. It presents the detailed requirements specific to optical self-supporting aerial telecommunication cables for use in premises cabling to ensure compatibility with ISO/IEC 11801 and ISO/IEC 24702. The requirements of the family specification IEC 60794-3-20 and sectional specification IEC 60794-3 are applicable to cables covered by this standard. This second edition cancels and replaces the first edition published in 2005. This edition constitutes...view more

IEC 60794-1-1:2015(E) is available as IEC 60794-1-1:2015 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC 60794-1-1:2015(E) applies to optical fibre cables for use with communication equipment and devices employing similar techniques and to cables having a combination of both optical fibres and electrical conductors. The object of this standard is to establish uniform generic requirements for...view more

IEC 60793-2-30:2015(E9 is applicable to sub-categories A3a, A3b, A3c, A3d, A3e, A3f and A3g. These fibres are used or can be incorporated in different information transmission equipment, other applications employing similar light transmitting techniques as well as fibre optic cables. Three types of requirements apply to these fibres: - general requirements, as defined in IEC 60793-2; - specific requirements common to the category A3 multimode fibres covered in this standard and which are given i...view more

IEC 60794-1-21:2015(E) applies to optical fibre cables for use with telecommunication equipment and devices employing similar techniques, and to cables having a combination of both optical fibres and electrical conductors. The object of this standard is to define test procedures to be used in establishing uniform requirements for mechanical requirement performance. Throughout this standard the wording "optical cable" may also include optical fibre units, microduct fibre units, etc. General requi...view more

IEC 60793-1-43:2015 establishes uniform requirements for measuring the numerical aperture of optical fibre, thereby assisting in the inspection of fibres and cables for commercial purposes. The numerical aperture (NA) of categories A1, A2, A3 and A4 multimode fibre is an important parameter that describes a fibre's light-gathering ability. It is used to predict launching efficiency, joint loss at splices, and micro/macrobending performance. The numerical aperture is defined by measuring the far-...view more

IEC 60794-3-10:2015 which is part of a family specification, covers optical telecommunication cables to be used in ducts or direct buried applications. The cable may also be used for lashed aerial applications. Requirements of the sectional specification IEC 60794-3 for duct, buried and aerial cables are applicable to cables covered by this standard. This third edition cancels and replaces the second edition published in 2009 and constitutes a technical revision. This edition includes the follow...view more