09-30197559-DC.pdf
《09-30197559-DC.pdf》由会员分享,可在线阅读,更多相关《09-30197559-DC.pdf(29页珍藏版)》请在三一文库上搜索。
1、a Date: 14 January 2009 Origin: International Latest date for receipt of comments: 15 March 2009 Project no.: 2009/00606 Responsible committee: GEL/86/1 Optical fibres and cables Interested committees: Title: Draft BS EN 60794-3-11 Ed.2 : Optical fibre cables - Part 3-11 : Outdoor cables Product spe
2、cification for duct and directly buried single-mode optical fibre telecommunication cables Supersession information: If this document is published as a standard, the UK implementation of it will supersede NONE and partially supersede. NONE If you are aware of a current national standard which may be
3、 affected, please notify the secretary (contact details below). WARNING: THIS IS A DRAFT AND MUST NOT BE REGARDED OR USED AS A BRITISH STANDARD. THIS DRAFT IS NOT CURRENT BEYOND 15 March 2009. This draft is issued to allow comments from interested parties; all comments will be given consideration pr
4、ior to publication. No acknowledgement will normally be sent. See overleaf for information on commenting. No copying is allowed, in any form, without prior written permission from BSI except as permitted under the Copyright, Designs and Patent Act 1988 or for circulation within a nominating organiza
5、tion for briefing purposes. Electronic circulation is limited to dissemination by e-mail within such an organization by committee members. Further copies of this draft may be purchased from BSI Customer Services, Tel: +44(0) 20 8996 9001 or email . British, International and foreign standards are al
6、so available from BSI Customer Services. Information on the co-operating organizations represented on the committees referenced above may be obtained from the responsible committee secretary. Cross-references The British Standards which implement International or European publications referred to in
7、 this draft may be found via the British Standards Online Service on the BSI web site http:/. Direct tel: 020 8996 7009 Responsible Committee Secretary: Committee Service Centre (BSI) E-mail: Draft for Public Comment Head Office 389 Chiswick High Road London W4 4AL Telephone: +44(0)20 8996 9000 Fax
8、: +44(0)20 8996 7001 Form 36 Version 8.0 DPC: 09/30197559 DC Licensed Copy: London South Bank University, South Bank University, 02/02/2009 04:04, Uncontrolled Copy, (c) BSI b Introduction This draft standard is based on international discussions in which the UK has taken an active part. Your commen
9、ts on this draft are welcome and will assist in the preparation of the consequent standard. There is a high probability that this text could be adopted by CENELEC as a reference document for harmonization or as a European Standard. Recipients of this draft are requested to comment on the text bearin
10、g in mind this possibility. UK Vote Please indicate whether you consider the UK should submit a negative (with reasons) or positive vote on this draft. Submission The guidance given below is intended to ensure that all comments receive efficient and appropriate attention by the responsible BSI commi
11、ttee. Annotated drafts are not acceptable and will be rejected. All comments must be submitted, preferably electronically, to the Responsible Committee Secretary at the address given on the front cover. Comments should be compatible with Version 6.0 or Version 97 of Microsoft Word for Windows, if po
12、ssible; otherwise comments in ASCII text format are acceptable. Any comments not submitted electronically should still adhere to these format requirements. All comments submitted should be presented as given in the example below. Further information on submitting comments and how to obtain a blank e
13、lectronic version of a comment form are available from the BSI web site at: http:/ Template for comments and secretariat observations Date: xx/xx/200x Document: ISO/DIS xxxxx 1 2 (3) 4 5 (6) (7) MB Clause No./ Subclause No./ Annex (e.g. 3.1) Paragraph/ Figure/Table/ Note (e.g. Table 1) Type of com-
14、ment Comment (justification for change) by the MB Proposed change by the MB Secretariat observations on each comment submitted 3.1 Definition 1 ed Definition is ambiguous and needs clarifying. Amend to read . so that the mains connector to which no connection . 6.4 Paragraph 2 te The use of the UV p
15、hotometer as an alternative cannot be supported as serious problems have been encountered in its use in the UK. Delete reference to UV photometer. Microsoft and MS-DOS are registered trademarks, and Windows is a trademark of Microsoft Corporation. Licensed Copy: London South Bank University, South B
16、ank University, 02/02/2009 04:04, Uncontrolled Copy, (c) BSI 86A/1259/CD COMMITTEE DRAFT (CD) IEC/TC or SC: SC86A Project number IEC 60794-3-11 Ed. 2.0 Title of TC/SC: Fibres and Cables Date of circulation 2009-01-09 Closing date for comments 2009-04-10 Also of interest to the following committees S
17、upersedes document 86A/1258/MCR Proposed horizontal standard Other TC/SCs are requested to indicate their interest, if any, in this CD to the TC/SC secretary Functions concerned: Safety EMC Environment Quality assurance Secretary: Guy Perrot - France Email: Guy.P THIS DOCUMENT IS STILL UNDER STUDY A
18、ND SUBJECT TO CHANGE. IT SHOULD NOT BE USED FOR REFERENCE PURPOSES. RECIPIENTS OF THIS DOCUMENT ARE INVITED TO SUBMIT, WITH THEIR COMMENTS, NOTIFICATION OF ANY RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE AND TO PROVIDE SUPPORTING DOCUMENTATION. Title: IEC 60794-3-11 Ed. 2.0: Optical fibre cables
19、- Part 3-11 Outdoor cables Product specification for duct and directly buried single-mode optical fibre telecommunication cables (Titre) : Introductory note Copyright 2009 International Electrotechnical Commission, IEC. All rights reserved. It is permitted to download this electronic file, to make a
20、 copy and to print out the content for the sole purpose of preparing National Committee positions. You may not copy or “mirror“ the file or printed version of the document, or any part of it, for any other purpose without permission in writing from IEC. Licensed Copy: London South Bank University, S
21、outh Bank University, 02/02/2009 04:04, Uncontrolled Copy, (c) BSI 86A/1259/CD 2 Contents Clause Page 1 Scope 6 2 Normative references6 3 Symbols.7 4 Terminology .7 5 General information 7 5.1 General cable description.7 5.1.1 Characteristics of optical fibre.7 5.1.2 Characteristics of optical fibre
22、 cable elements .8 5.1.3 Characteristics of optical fibre cables 8 5.1.4 Environmental and product safety requirements.8 5.2 Optical fibre splice-ability .8 5.3 Testing9 5.3.1 No change in attenuation 9 5.3.2 No change in fibre strain (B, C, A1) .9 6 Requirements for cabled single-mode optical fibre
23、s10 6.1 Fibre materials 10 6.2 Optical requirements10 6.2.1 Attenuation coefficient 10 6.2.2 Attenuation Discontinuities11 6.2.3 Cable Cut-off wavelength11 6.2.4 Polarization mode dispersion (PMD)11 6.2.5 Group index .11 7 Requirements for cable elements 12 7.1 Element design12 7.1.1 Modularity12 7.
24、1.2 Fibre and element identification.12 7.2 Element characteristics13 7.2.1 Ribbon.13 7.2.2 Tube kinking 13 8 Requirements for optical cables 13 8.1 Cable construction.13 8.1.1 Cable core .14 8.1.2 Anti-buckling and strength element splicing .14 8.1.3 Cable element stranding .14 8.1.4 Spliced fibres
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 09 30197559 DC
链接地址:https://www.31doc.com/p-3726792.html