07-30172523-DC.pdf
《07-30172523-DC.pdf》由会员分享,可在线阅读,更多相关《07-30172523-DC.pdf(9页珍藏版)》请在三一文库上搜索。
1、a Date: 10 October 2007 Origin: European Latest date for receipt of comments: 31 January 2008 Project no.: 2007/02709 Responsible committee: GEL/86/1 Optical fibres and cables Interested committees: Title: Draft BS EN 60794-3-12 IEC 60794-3-12 : Optical fibre cables - Part 3-12: Outdoor optical fibr
2、e cables - Product specification for duct and directly buried optical telecommunication cables for use in premises cabling Supersession information: If this document is published as a standard, the UK implementation of it will supersede BSEN60794-3-12 : 2006 and partially supersede. NONE If you are
3、aware of a current national standard which may be 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 31 January 2008. This draft is issued to allow comments from interested p
4、arties; all comments will be given consideration prior 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 1
5、988 or for circulation within a nominating organization 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 or
6、dersbsi-. British, International and foreign standards are also available from BSI Customer Services. British Standards on CD or Online are available from British Standards Publishing Sales Limited. Tel: 01344 404409 or email bsonlinetechindex.co.uk. Information on the co-operating organizations rep
7、resented 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 this draft may be found via the British Standards Online Service on the BSI web site http
8、:/www.bsi-. Direct tel: 020 8996 7298 Responsible Committee Secretary: Mr Ciaran Molloy (BSI) E-mail: ciaran.molloybsi- Draft for Public Comment Head Office 389 Chiswick High Road London W4 4AL Telephone: +44(0)20 8996 9000 Fax: +44(0)20 8996 7001 Form 36 Version 7.0 DPC: 07/30172523 DC Licensed Cop
9、y: London South Bank University, London South Bank University, Fri Nov 16 07:34:22 GMT+00:00 2007, Uncontrolled Copy, (c) BSI b Introduction This draft standard is based on European discussions in which the UK took an active part. Your comments on this draft are welcome and will assist in the prepar
10、ation of the consequent British Standard. If no comments are received to the contrary, then the UK will approve this draft and implement it as a British Standard. Comment is particularly welcome on national legislative or similar deviations that may be necessary. Even if this draft standard is not a
11、pproved by the UK, if it receives the necessary support in Europe, the UK will be obliged to publish the official English Language text unchanged as a British Standard and to withdraw any conflicting standard. UK Vote Please indicate whether you consider the UK should submit a negative (with reasons
12、) 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 committee. Annotated drafts are not acceptable and will be rejected. All comments must be submitted, preferably electronica
13、lly, 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 possible; otherwise comments in ASCII text format are acceptable. Any comments not submitted electronically should still
14、 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 electronic version of a comment form are available from the BSI web site at: http:/www.bsi- Template for comments and s
15、ecretariat 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- ment Comment (justification for change) by the MB Proposed change by the MB Secretariat observations on each c
16、omment 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 photometer as an alternative cannot be supported as serious problems have been encountered in its use in the UK
17、. 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, London South Bank University, Fri Nov 16 07:34:22 GMT+00:00 2007, Uncontrolled Copy, (c) BSI 86A/1180/CD COMMITTEE DR
18、AFT (CD) IEC/TC or SC: SC86A Project number IEC 60794-3-12 Ed. 2.0 Title of TC/SC: Fibres and Cables Date of circulation 2007-10-05 Closing date for comments 2008-01-11 Also of interest to the following committees ISO/IEC JTC1 SC25 Supersedes document 86A/1179/MCR Functions concerned: Safety EMC Env
19、ironment Quality assurance Secretary: Guy Perrot - France Email: Guy.P THIS DOCUMENT IS STILL UNDER STUDY AND 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 T
20、HEY ARE AWARE AND TO PROVIDE SUPPORTING DOCUMENTATION. Title: IEC 60794-3-12 Ed. 2.0: Optical fibre cables Part 3-12: Outdoor optical fibre cables Product specification for duct and directly buried optical telecommunication cables for use in premises cabling (Titre) : Introductory note FORM CD (IEC)
21、 2002-08-08 Copyright 2007 International Electrotechnical Commission, IEC. All rights reserved. It is permitted to download this electronic file, to make a 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 print
22、ed 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, London South Bank University, Fri Nov 16 07:34:22 GMT+00:00 2007, Uncontrolled Copy, (c) BSI 86A/1180/CD 2 CONTENTS FOREWORD 3 1 Scope 5 2 Normati
23、ve references5 3 General requirements .5 4 Particular requirements.6 4.1 Environmental requirements- Temperature cycling.6 4.2 Transmission requirements 6 4.2.1 Attenuation of cabled fibre 6 4.2.2 Fibre bandwidth requirements .7 4.2.3 Polarization mode dispersion (PMD) requirements .7 Bibliography .
24、7 Licensed Copy: London South Bank University, London South Bank University, Fri Nov 16 07:34:22 GMT+00:00 2007, Uncontrolled Copy, (c) BSI 86A/1180/CD 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ OPTICAL FIBRE CABLES Part 3-12: Outdoor optical fibre cables Product specification for duct and direct
- 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:
- 07 30172523 DC
链接地址:https://www.31doc.com/p-3726718.html