BS EN 60794-2-10:2011 BSI Standards Publication Optical fibre cables Part 2-10: Indoor optical fibre cables — Family specification for simplex and duplex cables NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW raising standards worldwide™ BS EN 60794-2-10:2011 BRITISH STANDARD National foreword This British Standard is the UK implementation of EN 60794-2-10:2011 It is identical to IEC 60794-2-10:2011 It supersedes BS EN 60794-2-10:2003 which is withdrawn The UK participation in its preparation was entrusted to Technical Committee GEL/86/1, Optical fibres and cables A list of organizations represented on this committee can be obtained on request to its secretary This publication does not purport to include all the necessary provisions of a contract Users are responsible for its correct application © BSI 2011 ISBN 978 580 70004 ICS 33.180.10 Compliance with a British Standard cannot confer immunity from legal obligations This British Standard was published under the authority of the Standards Policy and Strategy Committee on November 2011 Amendments issued since publication Date Text affected BS EN 60794-2-10:2011 EUROPEAN STANDARD EN 60794-2-10 NORME EUROPÉENNE October 2011 EUROPÄISCHE NORM ICS 33.180.10 Supersedes EN 60794-2-10:2003 English version Optical fibre cables Part 2-10: Indoor optical fibre cables Family specification for simplex and duplex cables (IEC 60794-2-10:2011) Câbles fibres optiques Partie 2-10: Câbles intérieurs fibres optiques Spécification de famille pour les câbles simplex et duplex (CEI 60794-2-10:2011) Lichtwellenleiterkabel Teil 2-10: LWL-Innenkabel Familienspezifikation für Simplex- und Duplexkabel (IEC 60794-2-10:2011) This European Standard was approved by CENELEC on 2011-09-14 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom CENELEC European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung Management Centre: Avenue Marnix 17, B - 1000 Brussels © 2011 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members Ref No EN 60794-2-10:2011 E BS EN 60794-2-10:2011 EN 60794-2-10:2011 -2- Foreword The text of document 86A/1396/FDIS, future edition of IEC 60794-2-10, 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 60794-2-10:2011 This document supersedes EN 60794-2-10:2003 The main changes with respect to EN 60794-2-10:2003 are as follows: – A new clause has been introduced: Clause – Dimensions – Test conditions and requirements have been made more accurate – The new Subclause 5.5 has been added to give useful figures EN 60794-2-10:2011 is to be used in conjunction with EN 60794-1-1, EN 60794-1-2 and EN 60794-2 The following dates are fixed: • • latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement latest date by which the national standards conflicting with the document have to be withdrawn (dop) 2012-06-14 (dow) 2014-09-14 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent rights Endorsement notice The text of the International Standard IEC 60794-2-10:2011 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 60654-4 NOTE Harmonized as EN 60654-4 IEC 60721-1 NOTE Harmonized as EN 60721-1 IEC 60721-3-3 NOTE Harmonized as EN 60721-3-3 IEC 61000-6-2 NOTE Harmonized as EN 61000-6-2 IEC 61918 NOTE Harmonized as EN 61918 BS EN 60794-2-10:2011 -3- EN 60794-2-10:2011 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following referenced documents are indispensable for the application 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 When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies Publication Year Title EN/HD Year IEC 60304 - Standard colours for insulation for lowfrequency cables and wires HD 402 S2 - IEC 60793-1-20 - Optical fibres Part 1-20: Measurement methods and test procedures - Fibre geometry EN 60793-1-20 - IEC 60793-1-21 - Optical fibres Part 1-21: Measurement methods and test procedures - Coating geometry EN 60793-1-21 - IEC 60793-1-40 - Optical fibres Part 1-40: Measurement methods and test procedures - Attenuation EN 60793-1-40 - IEC 60793-1-44 - Optical fibres Part 1-44: Measurement methods and test procedures - Cut-off wavelength EN 60793-1-44 - IEC 60793-2 - Optical fibres Part 2: Product specifications - General EN 60793-2 - IEC 60793-2-10 - Optical fibres EN 60793-2-10 Part 2-10: Product specifications - Sectional specification for category A1 multimode fibres - IEC 60793-2-50 - Optical fibres Part 2-50: Product specifications - Sectional specification for class B single-mode fibres EN 60793-2-50 - IEC 60794-1-1 2001 Optical fibre cables Part 1-1: Generic specification - General EN 60794-1-1 2002 IEC 60794-1-2 2003 Optical fibre cables EN 60794-1-2 Part 1-2: Generic specification - Basic optical cable test procedures 2003 IEC 60794-2 - Optical fibre cables EN 60794-2 Part 2: Indoor cables - Sectional specification - IEC 60811-1-1 - Insulating and sheathing materials of electric EN 60811-1-1 and optical cables - Common test methods Part 1-1: General application - Measurement of thickness and overall dimensions - Tests for determining the mechanical properties - BS EN 60794-2-10:2011 –2– 60794-2-10 IEC:2011 CONTENTS FOREWORD Scope Normative references Construction 3.1 General 3.2 Optical fibres and primary coating 3.3 Buffer 3.4 Ruggedised fibre 3.5 Slotted core 3.6 Tube 3.7 Stranded loose tube 3.8 Ribbon structure 3.9 Strength and anti-buckling members 3.10 Ripcord 3.11 Sheath 3.12 Sheath marking 3.13 Identification 3.14 Examples of cable constructions Dimensions – Optical fibres and primary coating Tests 5.1 5.2 5.3 General Dimensions Mechanical requirements 5.3.1 Tensile performance 5.3.2 Crush 5.3.3 Impact 10 5.3.4 Bend 10 5.3.5 Repeated bending 10 5.3.6 Bending under tension 10 5.3.7 Bending at low temperature 10 5.3.8 Flexing 10 5.3.9 Torsion 10 5.3.10 Kink 10 5.4 Environmental requirements 11 5.4.1 Temperature cycling 11 5.5 Transmission requirements 11 5.5.1 Single-mode optical fibres 11 5.5.2 Single-mode dispersion unshifted (B1.1) optical fibre 12 5.5.3 Single-mode dispersion unshifted (B1.3) optical fibre 12 5.5.4 Single-mode (B6_a) optical fibre 12 5.5.5 Single-mode (B6_b) optical fibre 12 5.5.6 Multimode optical fibres 13 5.5.7 Multimode (A1a and A1b) optical fibres 13 5.6 Fire performance 13 Annex A (informative) Examples of some types of cable construction 14 BS EN 60794-2-10:2011 60794-2-10 IEC:2011 –3– Annex B (informative) Family specification of indoor cables – simplex and duplex cables 17 Bibliography 20 Figure A.1 – Simplex loose non-buffered fibre cable 14 Figure A.2 – Simplex ruggedised fibre cable 14 Figure A.3 – Duplex loose non-buffered fibre cable 14 Figure A.4 – Duplex ruggedised fibre cable 15 Figure A.5 – Duplex ruggedised fibre zip cord 15 Figure A.6 – Duplex flat cable 15 Figure A.7 – Duplex round cable 16 Figure A.8 – Simplex and duplex rectangular cables 16 Table – Dimensions of buffered fibres Table – Temperature cycling conditions 11 Table – Common single-mode optical fibre requirements 11 Table – Cabled fibre attenuation requirements for B1.1 optical fibre 12 Table – Cabled fibre attenuation requirements for B1.3 optical fibre 12 Table – Cabled fibre attenuation requirements for B6_a optical fibre 12 Table – Cabled fibre attenuation requirements for B6_b optical fibre 12 Table – Common multimode optical fibre requirements 13 Table – Cabled fibre attenuation requirements for A1a and A1b optical fibres 13 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 BS EN 60794-2-10:2011 –4– 60794-2-10 IEC:2011 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ OPTICAL FIBRE CABLES – Part 2-10: Indoor optical fibre cables – Family specification for simplex and duplex cables 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 nongovernmental 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 60794-2-10 has been prepared by sub-committee 86A: Fibres and cables, of IEC technical committee 86: Fibre optics This second edition cancels and replaces the first edition published in 2003 It constitutes a technical revision The main changes with respect to the previous edition are as follows: – A new clause has been introduced: Clause – Dimensions – Test conditions and requirements have been made more accurate – The new Subclause 5.5 has been added to give useful figures This standard is to be used in conjunction with IEC 60794-1-1:2008, IEC 60794-1-2:2007 and IEC 60794-2 BS EN 60794-2-10:2011 60794-2-10 IEC:2011 –5– The text of this standard is based on the following documents: FDIS Report on voting 86A/1396/FDIS 86A/1412/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table This publication has been drafted in accordance with the ISO/IEC Directives, Part A list of all parts of 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 publication will remain unchanged until the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data related to the specific publication At this date, the publication 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 BS EN 60794-2-10:2011 –6– 60794-2-10 IEC:2011 OPTICAL FIBRE CABLES – Part 2-10: Indoor optical fibre cables – Family specification for simplex and duplex cables Scope This part of IEC 60794 is a family specification that covers simplex and duplex optical fibre cables for indoor use except for cables used in terminated assemblies specified by IEC 60794-2-50 The requirements of the Sectional specification IEC 60794-2 are applicable to cables covered by this standard For the cables intended for installation in industrial applications specified in ISO/IEC 24702, MICE specifications may be additionally required (see Annex B.2) Normative references The following referenced documents are indispensable for the application 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 They complete the normative references already listed in the generic specification (IEC 60794-1-1, Clause 2, and IEC 60794-1-2, Clause 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 60793-1-21, Optical fibres – Part 1-21: Measurement methods and test procedures – Coating 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 – Cutoff 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 specifications – Sectional specification for class B single-mode fibres IEC 60794-1-1:2008, Optical fibre cables – Part 1-1: Generic specification – General IEC 60794-1-2:2007, Optical fibre cables – Part 1-2: Generic specification – Basic optical cable test procedures IEC 60794-2, Optical fibre cables – Part 2: Indoor cables – Sectional specification BS EN 60794-2-10:2011 –8– 3.6 60794-2-10 IEC:2011 Tube One or two primary coated or buffered fibres are packaged (loosely or not) in a tube construction which may be filled The tube may be reinforced with a composite wall If required the suitability of the tube shall be determined by an evaluation of its kink resistance in accordance with IEC 60794-1-2, Method G7 3.7 Stranded loose tube Cables of this construction are not commonly used 3.8 Ribbon structure Cables of this construction are not commonly used 3.9 Strength and anti-buckling members The cable shall be designed with sufficient strength members to meet installation and service conditions so that the fibres are not subjected to strain in excess of limits agreed between the customer and the supplier The strength and/or anti-buckling member may be either metallic or non-metallic and may be located in the cable core and/or under the sheath and/or in the sheath 3.10 Ripcord Ripcords are not commonly used 3.11 Sheath The cable shall have an overall protective sheath The cable diameter shall be specified in the relevant detail specification (or product specification) 3.12 Sheath marking If required, the cable shall be marked according to the local regulations or the agreement between the customer and the supplier 3.13 Identification In case of duplex cables, the cable design should enable clear polarity identification for each individual fibre When fibre colouring is used for identification, standard colours shall be used as closely as possible (reasonable match) to IEC 60304 3.14 Examples of cable constructions Examples of some main types of cable construction are shown in Annex A Other configurations are not excluded if they meet the mechanical, environmental and transmission requirements given in this specification Dimensions – Optical fibres and primary coating The dimensions of the individual primary coated fibres in the finished product shall be in accordance with one of the sectional specifications defined in IEC 60793-2 The fibre dimensions (e.g cladding diameter or outer diameter including colouring) shall be verified in accordance with IEC 60793-1-20 or IEC 60793-1-21 BS EN 60794-2-10:2011 60794-2-10 IEC:2011 –9– Tests 5.1 General Compliance with specification requirements shall be verified by carrying out tests selected from the following subclauses It is not intended that all tests shall be carried out; the frequency of testing shall be agreed between customer and supplier Unless otherwise specified, all tests shall be carried out at ambient temperature 5.2 Dimensions The fibre dimensions and tolerances shall be checked in accordance with test method IEC 60793-1-20 or IEC 60793-1-21 The diameter of the buffer and of the cable, as well as the thickness of the sheath, shall be measured in accordance with the methods of IEC 60811-1-1 5.3 Mechanical requirements Some of the following tests can be performed on a short sample length of cable which is still an integral part of a longer length Thus it becomes possible to detect permanent changes in attenuation The maximum value of this attenuation change shall be agreed between customer and supplier 5.3.1 Tensile performance Method: IEC 60794-1-2, E1 Diameter of chuck drums and transfer devices: not less than 250 mm Rate of transfer device: either 100 mm/min or 100 N/min Load: 75 N applied for 10 for simplex cables and normal duplex cables 150 N applied for 10 for duplex cables which consist of independent simplex cables (NOTE 1) NOTE In case of duplex cables including two simplex cables and bearing the applied tensile force by the strength members of each simplex cable, e.g Figures A.5, A.6 (without optional strength member) and A.7, the tensile requirement for the duplex cable shall be double that for the simplex cable The rationale is that those simplex cables may be taken out from the duplex cable and will be independently used NOTE Requirements of tensile load depends on construction of cables Lower values may be adopted for some types of cables e.g small factor simplex cables Length of sample: sufficient to achieve the desired accuracy of measurement of attenuation change and shall be agreed between customer and supplier Requirements: no change in attenuation after the test and there shall be no damage to the cable elements Fibre strain shall not exceed a value agreed upon between customer and supplier 5.3.2 Crush Method: IEC 60794-1-2, E3 Force: 500 N Duration: Length between test locations: 500 mm BS EN 60794-2-10:2011 – 10 – Requirements: NOTE 60794-2-10 IEC:2011 no change in attenuation after the test and there shall be no damage to the cable elements In the case of flat cables the force is applied on the flat sides of the cable 5.3.3 Impact Method: IEC 60794-1-2, E4 Radius of striking surface: 12,5 mm Impact energy: 1,0 J Number of impacts: at least 3, each separated at least 500 mm Requirements: no fibre breakage NOTE In the case of flat cables the force is applied on the flat sides of the cable 5.3.4 Bend Method: IEC 60794-1-2, E11A Mandrel diameter: 60 mm Number of turns: Number of cycles: 10 Requirements: no fibre breakage NOTE In the case of flat cables the force is applied on the flat sides of the cable 5.3.5 Repeated bending None 5.3.6 Bending under tension None 5.3.7 Bending at low temperature None 5.3.8 Flexing None 5.3.9 Torsion Method: IEC 60794-1-2, E7 Number of cycles: Distance between fixed and rotating clamp: 125 x cable diameter but not more than m Tension load: 20 N Requirements: no fibre breakage 5.3.10 Kink Method: IEC 60794-1-2, E10 Minimum loop diameter: 20 times cable diameter Requirement: no kink shall occur BS EN 60794-2-10:2011 60794-2-10 IEC:2011 5.4 – 11 – Environmental requirements 5.4.1 Temperature cycling See Table Method: IEC 60794-1-2, F1 Table – Temperature cycling conditions Low temperature TA High temperature TB a) °C +50 °C b) –5 °C +50 °C c) –20 °C +60 °C d) –45 °C +60 °C NOTE Condition a), b), c) or d) will be selected depending on application and customer requirements, for example condition c) is appropriate for applications to ISO/IEC 11801 Period t : sufficient that the cable has reached, and stabilised to, the specified temperature Number of cycles: Length of sample: sufficient to achieve the desired accuracy of measurement of attenuation Requirement: maximum increase in attenuation to be agreed between customer and supplier 5.5 Transmission requirements The transmission requirements shall be in accordance with one of the sectional specifications defined in IEC 60793-2 and shall be agreed between customer and supplier Maximum cabled fibre attenuation shall comply with this specification NOTE 5.5.1 625 nm performance is optional depending on agreement between customer and supplier Single-mode optical fibres See Table Table – Common single-mode optical fibre requirements Characteristics IEC 60794-2 Clause no Requirements Test Methods Uncabled optical fibre 3.2 IEC 60793-2-50 Cabled fibre cut-off wavelength 4.4 λ cc < λ operational IEC 60793-1-44 Attenuation Discontinuities at 550 nm 4.4 ≤ 0,10 dB IEC 60793-1-40 Remarks BS EN 60794-2-10:2011 – 12 – 5.5.2 60794-2-10 IEC:2011 Single-mode dispersion unshifted (B1.1) optical fibre See Table Table – Cabled fibre attenuation requirements for B1.1 optical fibre Characteristics Attenuation coefficient (cabled fibres) IEC 60794-2 Clause 4.4 Acc DS Test Methods Remarks IEC 60793-1-40 ≤ 1,0 dB/km ≤ 1,0 dB/km ≤ 1,0 dB/km at 310 nm at 550 nm at 625 nm 5.5.3 Requirements Single-mode dispersion unshifted (B1.3) optical fibre See Table Table – Cabled fibre attenuation requirements for B1.3 optical fibre Characteristics Attenuation coefficient (cabled fibres) IEC 60794-2 Clause Requirements 4.4 Acc DS Remarks IEC 60793-1-40 ≤ 1,0 dB/km ≤ 1,0 dB/km ≤ 1,0 dB/km at 310 to 625 nm at 383 nm at 550 nm 5.5.4 Test Methods Single-mode (B6_a) optical fibre See Table Table – Cabled fibre attenuation requirements for B6_a optical fibre Characteristics Attenuation coefficient (cabled fibres) IEC 60794-2 Clause Requirements 4.4 Acc DS Remarks IEC 60793-1-40 ≤ 1,0 dB/km ≤ 1,0 dB/km ≤ 1,0 dB/km at 310 to 625 nm at 383 nm at 550 nm 5.5.5 Test Methods Single-mode (B6_b) optical fibre See Table Table – Cabled fibre attenuation requirements for B6_b optical fibre Characteristics Attenuation coefficient (cabled fibres) at 310 nm at 550 nm at 625 nm IEC 60794-2 Clause 4.4 Requirements Acc DS < 1,0 dB/km < 1,0 dB/km < 1,0 dB/km Test Methods IEC 60793-1-40 Remarks BS EN 60794-2-10:2011 60794-2-10 IEC:2011 5.5.6 – 13 – Multimode optical fibres See Table Table – Common multimode optical fibre requirements Characteristics IEC 60794-2 Clause Requirements Uncabled optical fibre 3.2 IEC 60793-2-10 Attenuation discontinuities at 850 nm and 300 nm 4.4 ≤ 0,10 dB 5.5.7 Test Methods Remarks IEC 60793-1-40 Multimode (A1a and A1b) optical fibres See Table Table – Cabled fibre attenuation requirements for A1a and A1b optical fibres Characteristics Attenuation coefficient (cabled fibres) at 850 nm at 300 nm 5.6 IEC 60794-2 Clause 4.4 Requirements Acc DS Test Methods Remarks IEC 60793-1-40 3,5 dB/km 1,5 dB/km Fire performance IEC/TR 62222 provides guidance and recommendations for the requirements and test methods for the fire performance of communication cables when installed in buildings The recommendations relate to typical applications and installation practices, and an assessment of the fire hazards presented Account is also taken of applicable legislation and regulation IEC/TR 62222 references several IEC fire performance test methods and also other test methods that may be required by local or National legislation and regulation The tests to be applied, and the requirements, shall be agreed between the customer and supplier taking into account the fire hazard presented by the end use application in which the cable is intended to be used BS EN 60794-2-10:2011 – 14 – 60794-2-10 IEC:2011 Annex A (informative) Examples of some types of cable construction See Figures A.1 to A.8 for examples of types of cable construction The main dimensions shall be agreed between customer and supplier Sheath Strength member embedded in the sheath Primary-coated optical fibre IEC 445/08 Figure A.1 – Simplex loose non-buffered fibre cable Sheath Strength member Buffer Primary coating Fibre IEC 446/08 Figure A.2 – Simplex ruggedised fibre cable Sheath Strength member embedded in the sheath Primary-coated optical fibre IEC 447/08 Figure A.3 – Duplex loose non-buffered fibre cable BS EN 60794-2-10:2011 60794-2-10 IEC:2011 – 15 – Sheath Strength member Buffer Primary coating Fibre IEC 448/08 Figure A.4 – Duplex ruggedised fibre cable Sheath Strength member Buffer Primary coating Fibre IEC 449/08 Figure A.5 – Duplex ruggedised fibre zip cord Optional strength member Strength member Primary coated optical fibre Buffer Sheath Common sheath IEC 450/08 Figure A.6 – Duplex flat cable BS EN 60794-2-10:2011 – 16 – 60794-2-10 IEC:2011 Primary coated optical fibre Buffer Strength member Sheath Common sheath Filler (optional) IEC 451/08 Figure A.7 – Duplex round cable Strength member Primary coated optical fibre Sheath IEC 1760/11 Figure A.8 – Simplex and duplex rectangular cables BS EN 60794-2-10:2011 60794-2-10 IEC:2011 – 17 – Annex B (informative) Family specification of indoor cables – simplex and duplex cables B.1 B.1.1 Blank detail specification Cable description See Table B.1 for cable description Table B.1 – Cable description (1) Prepared by (3) Available from : (2) (4) Document No Issue : Date : : Generic Specification : IEC 60794-1-1 Sectional Specification : IEC 60794-2 (5) Additional references : ISO/IEC 24702 if required (6) Cable description : (7) Cable construction : Optical fibres Range of fibre count Modularity Construction – Optical fibres and primary coating – Strength and anti-buckling members Additional remarks Outer sheath – Material – Min wall thickness Sheath marking – Customer requirement – Identification of manufacturer Fibre identification – (8) Customer requirement Application information : Application (Indoor) Maximum outer diameter (d) or width and height Rated maximum tensile load Minimum bending radius for operation mm N mm or nxd Temperature range : – Transport and storage °C – Installation °C – Operation °C Manufacturing cable length – Typical – Nominal/tolerances : m -0 +1% BS EN 60794-2-10:2011 – 18 – B.1.2 60794-2-10 IEC:2011 Cable element See Table B.2 for cable elements Table B.2 – Cable element Test Methods (12) Remarks (13) Characteristics (9) IEC 60794-2 Clause (10) Family Requirements (11) Optical fibres and primary coating 3.2 Acc DS Buffer 3.3 Acc DS Visual inspection Strength and anti-buckling member 3.9 Acc DS Visual inspection B.1.3 Cable construction See Table B.3 for cable construction Table B.3 – Cable construction Characteristics (9) IEC 60794-2 Clause (10) Cable core Strength member – Longitudinal – Helical 3.9 Family Requirements (11) Test Methods (12) Acc DS visual inspection Acc DS visual inspection Remarks (13) – Embedded in the sheath Sheath – 3.11 Material Acc DS – Minimum sheath thickness Acc DS IEC 60811-1-1 – Width and height Acc DS IEC 60811-1-1 – Optional protection Acc DS – Abrasion resistance Acc DS IEC 60794-1-2 Method E2A – Configuration, dimensions Acc DS visual inspection – Acc DS IEC 60794-1-2 Method E2B Sheath marking Abrasion resistance Cable length 3.12 Steel needle diameter d = 1,0 mm load : N BS EN 60794-2-10:2011 60794-2-10 IEC:2011 B.1.4 – 19 – Installation and operating conditions See Table B.4 for installation and operating conditions Table B.4 – Installation and operating conditions Characteristics (9) IEC 60794-2 Clause (10) Family Requirements (11) Test Methods (12) Acc DS IEC 60794-1-2 Method G1 Remarks (13) General requirements Bend of cable element B.1.5 Mechanical, environmental and fire performance tests See Table B.5 for mechanical, environmental and fire performance tests Table B.5 – Tests applicable Characteristics (9) IEC 60794-2 Clause (10) Family Requirements (11) Test Methods (12) Tensile performance 4.2.1 See 5.2.1 IEC 60794-1-2 Method E1A Crush 4.2.2 See 5.2.2 IEC 60794-1-2 Method E3 Impact 4.2.3 See 5.2.3 IEC 60794-1-2 Method E4 Bending 4.2.4 See 5.2.4 IEC 60794-1-2 Method E11A Repeated bending 4.2.5 See 5.2.5 IEC 60794-1-2 Method E6 Bending at low temperature 4.2.7 See 5.2.7 IEC 60794-1-2 Method E11A Flexing 4.2.8 See 5.2.8 IEC 60794-1-2 Method E8 Torsion 4.2.9 See 5.2.9 IEC 60794-1-2 Method E7 Kink 4.2.10 See 5.2.10 IEC 60794-1-2 Method E10 Temperature cycling 4.3.1 See 5.3.1 IEC 60794-1-2 Method F1 Fire performance 4.5 See 5.5 IEC TR 62222 B.2 Remarks (13) Additional requirements for cables subject to the MICE environmental classification (ISO/IEC 24702 and related standards) Cables intended for installation in conformity with ISO/IEC 24702 and related standards may require the specification of additional tests to ensure their suitability in the applicable environments defined by the Mechanical, Ingress, Climatic and Chemical, and Electromechanical (MICE) classification Such tests are outside of the scope of IEC 60794 cable specifications, and MICE criteria are not part of the requirements for 60794 specifications The MICE tests may be the same as, similar to, or substantially different from, the tests required by IEC 60794 specifications Cables manufactured per IEC 60794 specifications may or may not meet the MICE criteria For supplemental discussion see TR62362 BS EN 60794-2-10:2011 – 20 – 60794-2-10 IEC:2011 Bibliography IEC 60654-4: Operating conditions for industrial-process measurement and control equipment – Part 4: Corrosive and erosive influences IEC 60721-1: Classification of environmental conditions – Part 1: Environmental parameters and their severities IEC 60721-3-3: Classification of environmental conditions – Part 3: Classification of groups of environmental parameters and their severities – Section 3: Stationary use at weatherprotected locations IEC 61000-2-5: Electromagnetic compatibility (EMC) – Part 2-5: Environment – Section 5: Classification of electromagnetic environments Basic EMC publication IEC 61000-6-2: Electromagnetic compatibility (EMC) – Part 6-2: Generic standards – Immunity for industrial environments IEC 61918: Industrial communication networks – Installation of communication networks in industrial premises 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 ISO/IEC 24702: Information technology – Generic cabling – Industrial premises ISO/IEC 11801, Information technology – Generic cabling for customer premises _ This page deliberately left blank British Standards Institution (BSI) BSI is the independent national body responsible for preparing British Standards and other standards-related publications, information and services It presents the UK view on standards in Europe and at the international level It is incorporated by Royal Charter Revisions Information on standards British Standards are updated by amendment or revision Users of British Standards should make sure that they possess the latest amendments or editions It is the constant aim of BSI to improve the 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