SANS 60794-3-12-2006 Optical fibre cables Part 3-12 Outdoor cables - Detailed specification for duct and directly buried optical telecommunication cables for use in premises cablin.pdf
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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 0-626-18265-4 SANS 60794-3-12:2006Edition 1 IEC 60794-3-12:2005Edition 1SOUTH AFRICAN NATIONAL STANDARD Optical fibre cables Part 3-12: Outdoor cabl
4、es Detailed specification for duct and directly buried optical telecommunication cables for use in premises cabling This national standard is the identical implementation of IEC 60794-3-12:2005 and is adopted with the permission of the International Electrotechnical Commission. Published by Standard
5、s 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 SANS 60794-3-12:2006 Edition 1 IEC 60794-3-12:2005 Edition 1 Table of changes Change No. Date Scope National foreword This
6、 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 with annex 3 of the WTO/TBT agreement. NORME INTERNATIONALECEIIECINTERNATIONAL STANDARD 60794-3-12Premire ditionFirs
7、t edition2005-06Cbles fibres optiques Partie 3-12: Cbles extrieurs Spcification particulire pour les cbles optiques de tlcommunication destins tre installs dans des conduites ou tre directement enterrs et utiliss dans le cblage de locaux Optical fibre cables Part 3-12: Outdoor cables Detailed specif
8、ication for duct and directly buried optical telecommunication cables for use in premises cabling Commission Electrotechnique Internationale International Electrotechnical Commission Pour prix, voir catalogue en vigueur For price, see current catalogue IEC 2005 Droits de reproduction rservs Copyrigh
9、t - all rights reserved Aucune partie de cette publication ne peut tre reproduite ni utilise sous quelque forme que ce soit et par aucun procd, lectronique ou mcanique, y compris la photocopie et les microfilms, sans laccord crit de lditeur. No part of this publication may be reproduced or utilized
10、in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Electrotechnical Commission 3, rue de Varemb Geneva, SwitzerlandTelefax: +41 22 919 0300 e-mail: inmailiec.ch IEC web site http:/www.iec.ch COD
11、E PRIX PRICE CODE J 60794-3-12 IEC:2005 3 CONTENTS FOREWORD.5 1 Scope.11 2 Normative references .11 3 General requirements.13 4 Particular requirements 13 4.1 Environmental requirements13 4.1.1 Temperature cycling 13 4.2 Transmission requirements .13 4.2.1 Attenuation of cabled fibre.13 4.2.2 Fibre
12、bandwidth requirements15 Bibliography17 Table 1 Multimode maximum cable attenuation coefficient (dB/km)15 Table 2 Single-mode maximum cable attenuation coefficient (dB/km) 15 Table 3 Minimum multimode fibre bandwidth (MHzkm)15 60794-3-12 IEC:2005 5 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ OPTICAL
13、 FIBRE CABLES Part 3-12: Outdoor cables Detailed specification for duct and directly buried optical telecommunication cables for use in premises cabling FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotech
14、nical 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
15、, 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, go
16、vernmental and non-governmental 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 decision
17、s 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 internati
18、onal 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
19、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 clearl
20、y indicated in the latter. 5) IEC provides no marking procedure to indicate 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
21、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
22、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 public
23、ation. 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 60794-3-12 has been prepared by subcommittee SC86A: Fibre
24、s and cables, of IEC technical committee 86: Fibre optics. This first edition of IEC 60794-3-12 cancels and replaces IEC/PAS 60794-3-12, published in March 2004. This standard shall be used in conjunction with IEC 60794-1-1, IEC 60794-1-2, IEC 60794-3 Ed. 2, and IEC 60794-3-10. 60794-3-12 IEC:2005 7
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