1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA
2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any
3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-20877-6 SANS 60793-2-30:2008 Edition 2 IEC 60793-2-30:2007 Edition 2SOUTH AFRICAN NATIONAL STANDARD Optical fibres Part 2-30: Product spec
4、ifications Sectional specification for category A3 multimode fibres This national standard is the identical implementation of IEC 60793-2-30:2007 and is adopted with the permission of the International Electrotechnical Commission. WARNING Can only be used in conjunction with SANS 60793-2. Published
5、by Standards South Africa 1 dr lategan road groenkloof private bag x191 pretoria 0001 tel: 012 428 7911 fax: 012 344 1568 international code + 27 12 www.stansa.co.za Standards South Africa This standard may only be used and printed by approved subscription and freemailing clients of the SABS.SANS 60
6、793-2-30:2008 Edition 2 IEC 60793-2-30:2007 Edition 2 Table of changes Change No. Date Scope National foreword This South African standard was approved by National Committee StanSA SC 74A, Communication technology Fibre optics, in accordance with procedures of Standards South Africa, in compliance w
7、ith annex 3 of the WTO/TBT agreement. This SANS document was published in February 2008. This SANS document supersedes SANS 60793-2-30:2002 (edition 1). This standard may only be used and printed by approved subscription and freemailing clients of the SABS. IEC 60793-2-30 Edition 2.0 2007-08 INTERNA
8、TIONAL STANDARD NORME INTERNATIONALE Optical fibres Part 2-30: Product specifications Sectional specification for category A3 multimode fibres Fibres optiques Partie 2-30: Spcifications de produits Spcification intermdiaire pour les fibres multimodales de catgorie A3 INTERNATIONAL ELECTROTECHNICAL C
9、OMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE N ICS 33.180.10 PRICE CODE CODE PRIX ISBN 2-8318-9267-8 SANS 60793-2-30:2008This standard may only be used and printed by approved subscription and freemailing clients of the SABS. 2 60793-2-30 IEC:2007 CONTENTS FOREWORD.3 1 Scope 5 2 Normative re
10、ferences .5 3 Specifications.6 3.1 General .6 3.2 Dimensional requirements .6 3.3 Mechanical requirements.7 3.4 Transmission requirements .7 3.5 Environmental requirements8 Annex A (normative) Family specifications for A3a multimode fibres 9 Annex B (normative) Family specifications for A3b multimod
11、e fibres 10 Annex C (normative) Family specifications for A3c multimode fibres 11 Annex D (normative) Family specifications for A3d multimode fibres13 Bibliography15 Table 1 Relevant dimensional attributes and measurement methods6 Table 2 Dimensional requirements common to category A3 fibres6 Table
12、3 Additional dimensional attributes required in family specifications .7 Table 4 Relevant mechanical attributes and test methods7 Table 5 Mechanical requirements common to category A3 fibres .7 Table 6 Relevant transmission attributes and measurement methods.7 Table 7 Additional transmission attribu
13、tes required in the family specifications 8 Table 8 Relevant environmental attributes and test methods8 Table A.1 Dimensional requirements specific to A3a fibres 9 Table A.2 Mechanical requirements specific to A3a fibres9 Table A.3 Transmission requirements specific to A3a fibres.9 Table B.1 Dimensi
14、onal requirements specific to A3b fibres 10 Table B.2 Mechanical requirements specific to A3b fibres.10 Table B.3 Transmission requirements specific to A3b fibres10 Table C.1 Dimensional requirements specific to A3c fibres 11 Table C.2 Mechanical requirements specific to A3c fibres11 Table C.3 Trans
15、mission requirements specific to A3c fibres11 Table C.4.1 Environmental exposure tests .12 Table C.4.2 Attributes measured12 Table D.1 Dimensional requirements specific to A3d fibres 13 Table D.2 Mechanical requirements specific to A3d fibres13 Table D.3 Transmission requirements specific to A3d fib
16、res 13 Table D.4.1 Environmental exposure tests .14 Table D.4.2 Attributes measured14 SANS 60793-2-30:2008This standard may only be used and printed by approved subscription and freemailing clients of the SABS.60793-2-30 IEC:2007 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ OPTICAL FIBRES Part 2-30
17、: Product specifications Sectional specification for category A3 multimode fibres 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 pro
18、mote 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
19、 (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non- governmental organizations liaising with the IEC al
20、so 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 poss
21、ible, 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. Wh
22、ile 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
23、 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 provides no marking procedure to ind
24、icate its approval and cannot be rendered responsible for any equipment declared to be in conformity with an IEC Publication. 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 includin
25、g 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
26、 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 eleme
27、nts 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 60793-2-30 has been prepared by subcommittee 86A: Fibres and cables, of IEC technical committee 86: Fibre optics. This second e
28、dition cancels and replaces the first edition, published in 2002. It constitutes a technical revision. The main changes from the previous edition are: the addition of tensile strength requirement; the removal of water immersion requirement; the addition of environmental requirements. SANS 60793-2-30
29、:2008This standard may only be used and printed by approved subscription and freemailing clients of the SABS. 4 60793-2-30 IEC:2007 The text of this standard is based on the following documents: CDV Report on voting 86A/1130/CDV 86A/1150/RVC Full information on the voting for the approval of this st
30、andard 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 2. A list of all parts of the IEC 60793 series, published under the general title Optical fibres, can be found on the IEC website. The committee
31、 has decided that the contents of this publication will remain unchanged until the maintenance result 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
32、edition, or amended. SANS 60793-2-30:2008This standard may only be used and printed by approved subscription and freemailing clients of the SABS.60793-2-30 IEC:2007 5 OPTICAL FIBRES Part 2-30: Product specifications Sectional specification for category A3 multimode fibres 1 Scope This part of IEC 60
33、793-2 is applicable to optical fibre types A3a, A3b, A3c, and A3d. These fibres are used or can be incorporated in information transmission equipment and optical fibre cables (typically up to 1 km). Three types of requirements apply to these fibres: general requirements, as defined in IEC 60793-2; s
34、pecific requirements common to the category A3 multimodal fibres covered in this standard and which are given in Clause 3; particular requirements applicable to individual fibre types or specific applications (e.g. automotive or industrial applications), which are defined in the normative family spe
35、cification annexes. 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. IEC 60
36、793-1-20, 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 60793-1-22, Optical fibres Part 1-22: Measurement methods and test procedures Length measurement IEC 60793
37、-1-30, Optical fibres Part 1-30: Measurement methods and test procedures Fibre proof test IEC 60793-1-31, Optical fibres Part 1-31: Measurement methods and test procedures Tensile strength IEC 60793-1-40, Optical fibres Part 1-40: Measurement methods and test procedures Attenuation IEC 60793-1-41, O
38、ptical fibres Part 1-41: Measurement methods and test procedures Bandwidth IEC 60793-1-46, Optical fibres Part 1-46: Measurement methods and test procedures Monitoring of changes in optical transmittance IEC 60793-1-50, Optical fibres Part 1-50: Measurement methods and test procedures Damp heat (ste
39、ady state) SANS 60793-2-30:2008This standard may only be used and printed by approved subscription and freemailing clients of the SABS. 6 60793-2-30 IEC:2007 IEC 60793-1-51, Optical fibres Part 1-51: Measurement methods and test procedures Dry heat IEC 60793-1-52, Optical fibres Part 1-52: Measureme
40、nt methods and test procedures Change of temperature IEC 60793-2, Optical fibres Part 2: Product specifications General 3 Specifications 3.1 General The fibre shall consist of a glass core and a plastic cladding in accordance with 4.2 of IEC 60793-2. 3.2 Dimensional requirements Relevant dimensional
41、 attributes and measurement methods are given in Table 1. Dimensional requirements common to all fibres in category A3 are indicated in Table 2. Table 3 lists additional dimensional attributes that shall be specified by each family specification. Table 1 Relevant dimensional attributes and measureme
42、nt methods Attributes Measurement methods Cladding diameter IEC 60793-1-20 Core diameter IEC 60793-1-20 Core non-circularity IEC 60793-1-20 Core-cladding concentricity error IEC 60793-1-20 Coating diameter IEC 60793-1-21 Fibre length IEC 60793-1-22 Table 2 Dimensional requirements common to category
43、 A3 fibres Attributes Unit Limits Core diameter m 200 8 Core non-circularity % 6 Core-cladding concentricity error % 10 Fibre length km aaLength requirements vary and should be agreed between supplier and customer. . SANS 60793-2-30:2008This standard may only be used and printed by approved subscrip
44、tion and freemailing clients of the SABS.60793-2-30 IEC:2007 7 Table 3 Additional dimensional attributes required in family specifications Attributes Cladding diameter Coating diameter 3.3 Mechanical requirements Relevant mechanical attributes and test methods are given in Table 4. Requirements comm
45、on to all fibres in category A3 are indicated in Table 5. Table 4 Relevant mechanical attributes and test methods Attribute Test method Tensile strength IEC 60793-1-31 (0,5 m sample length) Strain rate 3 % to 5 % / minute Proof test IEC 60793-1-30 Table 5 Mechanical requirements common to category A
46、3 fibres Attribute Unit Limit Proof stress level % 0,5 aaThe proof test level shall be equivalent to a minimum fibre elongation of 0,5 %. For the relation between different units, see 4.4 of IEC 62048. 3.4 Transmission requirements Relevant transmission attributes and measurement methods are given i
47、n Table 6. Additional attributes required in the family specification are indicated in Table 7. Table 6 Relevant transmission attributes and measurement methods Attribute Measurement method Attenuation coefficient aIEC 60793-1-40 Optical continuity IEC 60793-1-40 or IEC 60793-1-46 Modal bandwidth aI
48、EC 60793-1-41 Theoretical numerical aperture IEC 60793-1-20 Change of optical transmission IEC 60793-1-46 aWhen measuring attenuation and modal bandwidth, the appropriate launching conditions should be applied - as specified in IEC 60793-1-40 and IEC 60793-1-41. Attenuation and band- width are not n
49、ecessarily linear with length. SANS 60793-2-30:2008This standard may only be used and printed by approved subscription and freemailing clients of the SABS. 8 60793-2-30 IEC:2007 Table 7 Additional transmission attributes required in the family specifications Attributes Attenuation coefficient Modal bandwidth Theoretical numerical aperture 3.5 Environmental requirements Relevant e
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