1、BSI Standards PublicationOptical fibre cablesPart 4-10: Aerial optical cables along electrical power lines Family specification for OPGW (Optical Ground Wires)BS EN 60794-4-10:2014National forewordThis British Standard is the UK implementation of EN 60794-4-10:2014. It isidentical to IEC 60794-4-10:
2、2014. It supersedes BS EN 60794-4-10:2007which is withdrawn.The UK participation in its preparation was entrusted by Technical Com-mittee GEL/86, Fibre optics, to Subcommittee GEL/86/1, Optical fibres and cables.A list of organizations represented on this committee can be obtained onrequest to its s
3、ecretary.This publication does not purport to include all the necessary provisions ofa contract. Users are responsible for its correct application. The British Standards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 84822 3ICS 33.180.10Compliance with a British Standard cann
4、ot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 January 2015.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 60794-4-10:2014EUROPEAN STANDARDNORME EUROPENNEEUROP
5、ISCHE NORMEN 60794-4-10 December 2014 ICS 33.180.10 Supersedes EN 60794-4-10:2007 English Version Optical fibre cables - Part 4-10: Family specification - Optical ground wires (OPGW) along electrical power lines (IEC 60794-4-10:2014) Cbles fibres optiques - Partie 4-10: Spcification de famille - Cbl
6、es de garde fibres optiques (OPGW - Optical Ground Wires) le long des lignes lectriques de puissance (CEI 60794-4-10:2014) Lichtwellenleiterkabel - Teil 4-10: Familienspezifikation - OPWG (Optical Ground Wires) Lichtwellenleiter-Erdseile auf Starkstromleitungen (IEC 60794-4-10:2014) This European St
7、andard was approved by CENELEC on 2014-12-03. 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 conce
8、rning 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 me
9、mber into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republ
10、ic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnical Standardization
11、 Comit Europen de Normalisation ElectrotechniqueEuropisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 60794-4-10:2014 E
12、 EN 60794-4-10:2014 - 2 - Foreword The text of document 86A/1594/CDV, future edition 2 of IEC 60794-4-10, 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 60794-4-10:2014. The following dates are fixed: la
13、test date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2015-09-03 latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2017-12-03 This document supersedes EN 6079
14、4-4-10:2007. 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 60794-4-10:
15、2014 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following notes have to be added for the standards indicated: IEC 60794-1-20 NOTE Harmonized as EN 60794-1-20. IEC 60794-1-23 NOTE Harmonized as EN 60794-1-23. ISO 9001 NOTE H
16、armonized as EN ISO 9001. BS EN 60794-4-10:2014- 3 - EN 60794-4-10:2014 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following documents, in whole or in part, are normatively referenced in this document and are indispensab
17、le for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant
18、 EN/HD applies. NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here: www.cenelec.eu. Publication Year Title EN/HD Year IEC 60104 - Aluminium-magnesium-silicon alloy wire for overhead line conductors - - IEC 60304 - Standard colours fo
19、r insulation for low-frequency cables and wires HD 402 S2 - IEC 60793 series Optical fibres EN 60793 series 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 pro
20、cedures - Cut-off wavelength EN 60793-1-44 - IEC 60793-1-48 - Optical fibres - Part 1-48: Measurement methods and test procedures - Polarization mode dispersion EN 60793-1-48 - IEC 60793-2-50 - Optical fibres - Part 2-50: Product specifications - Sectional specification for class B single-mode fibre
21、s EN 60793-2-50 - IEC 60794-1-1 - Optical fibre cables - Part 1-1: Generic specification - General EN 60794-1-1 - IEC 60794-1-21 - 1)Optical fibre cables - Part 1-21: Generic specification - Basic optical cable test procedures - Mechanical tests methods FprEN 60794-1-21 - 1)IEC 60794-1-22 2012 Optic
22、al fibre cables - Part 1-22: Generic specification - Basic optical cable test procedures - Environmental test methods EN 60794-1-22 2012 1)At draft stage. BS EN 60794-4-10:2014EN 60794-4-10:2014 - 4 - Publication Year Title EN/HD Year IEC 60794-1-24 2014 Optical fibre cables - Part 1-24: Generic spe
23、cification - Basic optical cable test procedures - Electrical test methods EN 60794-1-24 2014 IEC 60794-4 2003 Optical fibre cables - Part 4: Sectional specification - Aerial optical cables along electrical power lines EN 60794-4 2003 IEC 60888 - Zinc-coated steel wires for stranded conductors - - I
24、EC 60889 - Hard-drawn aluminium wire for overhead line conductors EN 60889 - IEC 61089 1991 Round wire concentric lay overhead electrical stranded conductors - - IEC 61232 - Aluminium-clad steel wires for electrical purposes EN 61232 - IEC 61394 - Overhead lines - Requirements for greases for alumin
25、ium, aluminium alloy and steel bare conductors EN 61394 - IEC 61395 - Overhead electrical conductors - Creep test procedures for stranded conductors EN 61395 - BS EN 60794-4-10:2014 2 IEC 60794-4-10:2014 IEC 2014 CONTENTS 1 Scope 6 2 Normative references 6 3 Terms and definitions 7 3.1 Cables 7 3.2
26、Other definitions . 7 4 Optical fibre . 8 4.1 General . 8 4.2 Attenuation . 9 Attenuation coefficient . 9 4.2.1Attenuation uniformity and attenuation discontinuities 9 4.2.24.3 Cut-off wavelength of cabled fibre . 9 4.4 Fibre colouring 9 4.5 Polarization mode dispersion (PMD) . 9 5 Cable element . 9
27、 6 Cable construction . 10 7 Cable design characteristics 10 8 Cable tests 11 8.1 General . 11 8.2 Classification of tests 11 Type tests 11 8.2.1Factory acceptance tests . 12 8.2.2Routine tests . 12 8.2.38.3 Type tests . 12 General . 12 8.3.1Tensile performance 12 8.3.2Stress-strain test . 13 8.3.3B
28、reaking strength test 13 8.3.4Sheave test . 13 8.3.5Aeolian vibration test . 14 8.3.6Creep 14 8.3.7Low frequency vibration test (Galloping test) . 15 8.3.8Temperature cycling 15 8.3.9Water penetration (applicable to optical unit(s) only) 16 8.3.10Short-circuit . 16 8.3.11Lightning test . 16 8.3.128.
29、4 Factory acceptance tests 17 General . 17 8.4.1Typical tests 17 8.4.28.5 Routine tests. 17 General . 17 8.5.1Typical tests 18 8.5.29 Quality assurance 18 Annex A (informative) Packaging and marking . 19 Bibliography 20 BS EN 60794-4-10:2014IEC 60794-4-10:2014 IEC 2014 3 Table 1 Cable design charact
30、eristics 10 Table 2 Lightning test conditions and parameters to be informed in the test report . 17 BS EN 60794-4-10:2014 6 IEC 60794-4-10:2014 IEC 2014 OPTICAL FIBRE CABLES Part 4-10: Family specification Optical ground wires (OPGW) along electrical power lines 1 Scope This part of IEC 60794-4, whi
31、ch is a family specification, covers cable construction, test methods and optical, mechanical, environmental and electrical performance requirements for OPGW (optical ground wire) which is used for the protection of electrical power lines against atmospheric discharges or short-circuits and, at the
32、same time, as a high bandwidth transport media for communications-and-control optical signals. The corresponding environmental declaration may be built according to IEC TR 62839-1. The OPGW is a substitute for a conventional ground-/shield-wire containing optical fibres for control and/or telecommun
33、ication purposes. Usually the fibres are embedded loosely in protective buffer tubes. To fulfil mechanical and electrical requirements; an armouring of one or more layers with aluminium, aluminium alloy, and aluminium clad steel, galvanized steel or a mixture of them is helically stranded. If the co
34、nstruction contains an aluminium tube or an aluminium slotted core, this cross section is considered as a conductive part. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references,
35、 only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60104, Aluminium-magnesium-silicon alloy wire for overhead line conductors IEC 60304, Standard colours for insulation for low-frequency cables and wires IEC
36、60793 (all parts), Optical fibres IEC 60793-1-40, Optical fibres Part 1-40: Measurement methods and test procedures Attenuation IEC 60793-1-44, Optical fibres Part 1-44: Measurement methods and test procedures Cut-off wavelength IEC 60793-1-48, Optical fibres Part 1-48: Measurement methods and test
37、procedures Polarizationn mode dispersion IEC 60793-2-50, Optical fibres Part 2-50: Product specifications Sectional specifications for class B single-mode fibres IEC 60794-1-1, Optical fibre cables Part 1-1: Generic specification General BS EN 60794-4-10:2014IEC 60794-4-10:2014 IEC 2014 7 IEC 60794-
38、1-21, Optical fibre cables Part 1-21: Generic specification Basic optical cable test procedures Mechanical test methods1IEC 60794-1-22:2012, Optical fibre cables Part 1-22: Generic specification Basic optical cable test procedures Environmental test methods IEC 60794-1-24:2014, Optical fibre cables
39、Part 1-24: Generic specification Basic optical cable test procedures Electrical testmethods IEC 60794-4:2003, Optical fibre cables Part 4: Sectional specification Aerial optical cables along electrical power lines IEC 60888, Zin-coated steel wires for stranded conductors IEC 60889, Hard-drawn alumin
40、ium wire for overherad line conductors IEC 61089:1991, Round wire concentric lay overhead electrical stranded conductors IEC 61232, Aluminium-clad steel wires for electrical purposes IEC 61394, Overhead lines Characteristics of greases for aluminium, aluminium alloy and steel bare conductors IEC 613
41、95, Overhead electrical conductors Creep test procedures for stranded conductors 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 Cables 3.1.1optical ground wire OPGW metallic optical cable that has the dual performance functions of a conventi
42、onal ground wire with telecommunication capabilities 3.2 Other definitions 3.2.1rated tensile strength RTS summation of the product of nominal cross-sectional area, nominal tensile strength and stranding factor (minimum 0,9) for each load bearing material in the cable construction Note 1 to entry: S
43、ee Annex A of IEC 60794-4:2003 for details of the recommended method to calculate rated tensile strength of OPGW. 3.2.2creep test test designed to determine the long-term tensile creep characteristics of metallic aerial installed cables _ 1To be published. BS EN 60794-4-10:2014 8 IEC 60794-4-10:2014
44、 IEC 2014 Note 1 to entry: The information derived from this test is used in the sag-tension calculations during the design layout of the OPGW in the electrical system. 3.2.3fittings hardware used for stringing and clipping of OPGW to the structures at the end of the installation procedure Note 1 to
45、 entry: Suspension, dead end, vibration damper and bonding clamps hardware are designed for a specific size and/or type of OPGW cable. 3.2.4optical fibre unit cable element designed to house and to protect the optical fibres from damage due to mechanical, thermal and electrical influences and moistu
46、re penetration Note 1 to entry: Further details are given in Clause 6. 3.2.5maximum allowable ovality MAOC unit or its component that does not exceed the specified value when calculated as (d1 d2)/(d1+ d2) in % where d1is the maximum measured diameter of the cable or the component; d2is the minimum
47、diameter of the cable or the component at the same cross-section as d1. 3.2.6maximum allowable tension MAT maximum tensile load that may be applied to the cable without detriment to the tensile performance requirement Note 1 to entry: Such performances requirements may be optical, fibre strain and m
48、echanical. 3.2.7maximum installation tension MIT maximum recommended stringing tension during installation 3.2.8strain margin commonly referred to as 30 % of proof test level and the basis for defining the MIT and MAT of the optical cable Note 1 to entry: The strain margin (%) is directly related to
49、 the amount of mechanical tension, in N, a specific cable design can sustain without strain on the optical fibres due to cable elongation. 4 Optical fibre 4.1 General Single-mode optical fibres shall be used which meet the requirements of the relevant part of IEC 60793. Fibres other than those specified above can be used, if mutually agreed between the customer and supplier. BS EN 60794-4-10:2014IEC 60794-4-10:2014 IEC 2014 9 4.2 Atte
