06-30152609-DC.pdf
《06-30152609-DC.pdf》由会员分享,可在线阅读,更多相关《06-30152609-DC.pdf(29页珍藏版)》请在三一文库上搜索。
1、a Date: 31 October 2006 Origin: National Latest date for receipt of comments: 31 January 2007 Project no.: 2006/01778 Responsible committee: GEL/20/18 Fire testing Interested committees: FSH/25, FSH/25/3 Title: Draft BS BS 8491 Fire integrity of power cables - Test method Supersession information: I
2、f 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 affected, please notify the secretary (contact details below). WARNING: THIS IS A DRAFT AND MUST NOT BE REGARDED OR
3、USED AS A BRITISH STANDARD. THIS DRAFT IS NOT CURRENT BEYOND 31 January 2007. This draft is issued to allow comments from interested parties; all comments will be given consideration prior to publication. No acknowledgement will normally be sent. See overleaf for information on commenting. No copyin
4、g 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 organization for briefing purposes. Electronic circulation is limited to dissemination by e-mail within such an organizatio
5、n by committee members. Further copies of this draft may be purchased from BSI Customer Services, Tel: +44(0) 20 8996 9001 or email ordersbsi-. British, International and foreign standards are also available from BSI Customer Services. British Standards on CD or Online are available from British Sta
6、ndards Publishing Sales Limited. Tel: 01344 404409 or email bsonlinetechindex.co.uk. 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 Internati
7、onal or European publications referred to in this draft may be found via the British Standards Online Service on the BSI web site http:/www.bsi-. Direct tel: 0208 996 7281 Responsible Committee Secretary: Mr S Bounds (BSI) E-mail: simon.boundsbsi- Draft for Public Comment Head Office 389 Chiswick Hi
8、gh Road London W4 4AL Telephone: +44(0)20 8996 9000 Fax: +44(0)20 8996 7001 Form 36 Version 6.1 DPC: 06/30152609 DC Licensed Copy: London South Bank University, London South Bank University, Sun Dec 24 04:07:36 GMT+00:00 2006, Uncontrolled Copy, (c) BSI b Introduction Your comments on this draft are
9、 welcome and will assist in the preparation of the consequent British Standard. If no comments are received to the contrary, this draft may be implemented unchanged as a British Standard. Submission The guidance given below is intended to ensure that all comments receive efficient and appropriate at
10、tention by the responsible BSI committee. 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
11、of Microsoft Word for Windows, if possible; 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
12、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 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/ Figu
13、re/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 comment submitted 3.1 Definition 1 ed Definition is ambiguous and needs clarifying. Amend to read . so that the mains connector to which no connecti
14、on . 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. Delete reference to UV photometer. Microsoft and MS-DOS are registered trademarks, and Windows is a trademark of Microsoft Corporation. Licensed
15、Copy: London South Bank University, London South Bank University, Sun Dec 24 04:07:36 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 8491 Draft. 2006-01778dpc 1 Method for assessment of fire integrity of large diameter power cables for use as components for smoke and heat control systems and certain
16、other active fire safety systems Licensed Copy: London South Bank University, London South Bank University, Sun Dec 24 04:07:36 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 8491 Draft. 2006-01778dpc 2 Foreword Publishing information This British Standard was published by BSI and came into effect on
17、 . It was prepared by Subcommittee GEL/20/18, Fire testing, under the authority of Technical Committee GEL/20, Electric cables. Relationship with other publications The test method given in this British Standard is technically identical with the test method given in BS 7346-6:2005, Annex B. It is in
18、tended that when BS 7346-6:2005 is amended Annex B will be taken out. Information about this document The test method given in this British Standard includes subjecting the cable under test to radiation via direct impingement corresponding to a constant temperature attack of 842 C, to direct mechani
19、cal impacts corresponding to a force of approximately 10 N, and to direct application of a water jet simulating a water fire fighting jet. NOTE 1 Although this test method has changes to accommodate the application of impacts and the water jet, it is based on the test method given in BS EN 50362, wh
20、ich has the constant temperature attack of 842 C. This is the same constant temperature attack as used in the test method given in BS EN 50200. BS 7346-6 specifies three fire survival times depending upon the application of the cables. Cables for fire fighting systems (FF) require a minimum of 120 m
21、in; cables for life safety systems (LS) require either 30 min or 60 min. The test method given in this British Standard includes three different test durations to allow testing of cables intended for these different applications. It is emphasized that fire tests do not assess a fire hazard, nor can
22、the results of fire tests alone guarantee safety. They only provide information to assist in the assessment of the suitability of a cable for a given application. Hazard warnings WARNING. This British Standard calls for the use of substances and/or procedures that can be injurious to health if adequ
23、ate precautions are not taken. It refers only to technical suitability and does not absolve the user from legal obligations relating to health and safety at any stage. The test given in this British Standard may involve the use of dangerous voltages and temperatures. Suitable precautions should be t
24、aken against the risk of shock, burning, fire and explosion that may be involved and against any noxious fumes that may be produced. Use of this document It has been assumed in the preparation of this British Standard that the execution of its provisions will be entrusted to appropriately qualified
- 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:
- 06 30152609 DC
链接地址:https://www.31doc.com/p-3726365.html