1、BS EN 3745-506:2009ICS 49.060NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDAerospace series Fibres and cables, optical, aircraft use Test methodsPart 506: Impact resistanceThis British Standard was published under the authority of the Standards Policy and Stra
2、tegy Committee on 30September 2009 BSI 2009ISBN 978 0 580 67498 3Amendments/corrigenda issued since publicationDate CommentsBS EN 3745-506:2009National forewordThis British Standard is the UK implementation of EN 3745-506:2009. The UK participation in its preparation was entrusted to TechnicalCommit
3、tee ACE/6, Aerospace avionic electrical and fibre optictechnology.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application
4、. Compliance with a British Standard cannot confer immunityfrom legal obligations.BS EN 3745-506:2009EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 3745-506 August 2009 ICS 49.060 English Version Aerospace series - Fibres and cables, optical, aircraft use - Test methods - Part 506: Impact resi
5、stance Srie arospatiale - Fibres et cbles optiques usage aronautique - Mthodes dessais - Partie 506: Rsistance limpact Luft- und Raumfahrt - Faseroptische Leitungen fr Luftfahrzeuge - Prfverfahren - Teil 506: Schlagfestigkeit This European Standard was approved by CEN on 3 July 2009. CEN members are
6、 bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to t
7、he CEN Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same
8、 status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Ro
9、mania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reserve
10、d worldwide for CEN national Members. Ref. No. EN 3745-506:2009: EBS EN 3745-506:2009EN 3745-506:2009 (E) 2 Contents Page Foreword 3 1 Scope 4 2 Normative references 4 3 Preparation of specimens .4 4 Apparatus .4 5 Method 5 5.1 Procedure .5 5.2 Final measurements and requirements .5 BS EN 3745-506:2
11、009EN 3745-506:2009 (E) 3 Foreword This document (EN 3745-506:2009) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-STAN). After enquiries and votes carried out in accordance with the rules of this Association, this Standard has re-ceived the ap
12、proval of the National Associations and the Official Services of the member countries of ASD, prior to its presentation to CEN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by February 2010, and c
13、onflicting national standards shall be withdrawn at the latest by February 2010. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. Accor
14、ding to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Repub-lic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latv
15、ia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 3745-506:2009EN 3745-506:2009 (E) 4 1 Scope This standard specifies a method to determine the ability of an optical fibre or cable to withsta
16、nd impact under specified environmental conditions. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated refer-ences, only the edition cited applies. For undated references, the latest edition of the referenced document (includin
17、g any amendments) applies. EN 2591-100, Aerospace series Elements of electrical and optical connection Test methods Part 100: General EN 3745-100, Aerospace series Fibres and cables, optical, aircraft use Test methods Part 100: General EN 3745-201, Aerospace series Fibres and cables, optical, aircra
18、ft use Test methods Part 201: Visual inspection EN 3745-301, Aerospace series Fibres and cables, optical, aircraft use Test methods Part 301: AttenuationEN 187000, Generic specification: Optical fibre cables 3 Preparation of specimens 3.1 lf not at standard test conditions, the specimens shall be su
19、bjected to standard test conditions and sta-bilized at these conditions for 24 h as defined in EN 3745-100. Attenuation should be measured, in accor-dance with EN 3745-301 method C, before the test. 3.2 Unless otherwise specified in the product standard, the following details shall be as stated in t
20、he tech-nical specification: a) the temperature at which test is carried out if other than standard; b) the number and length of specimens; c) the mass of the weight and the drop height, or alternatively the impact energy; d) the radius R of the intermediate piece; e) the number of impacts; f) the p
21、ermissible change in attenuation after the test. 4 Apparatus The apparatus shall comprise: a) a Light Launch System (LLS) and Light Detector System (LDS) as defined in EN 2591-100; b) impact test apparatus as defined in EN 187000 method 505. The impact test apparatus shall permit a weight to drop ve
22、rtically onto an intermediate piece of steel which transmits the impact to the cable sample. The sample shall be fixed to a flat substantial steel base. BS EN 3745-506:2009EN 3745-506:2009 (E) 5 5 Method 5.1 Procedure After the cable sample has been mounted in the test apparatus, the attenuation sha
23、ll be measured as defined in EN 3745-301, method C. The mass of the weight and the height from which the weight falls be as specified, or if an impact energy is specified shall be adjusted to give the value of impact energy shown. The number of impacts shall be as specified. The attenuation shall be
24、 measured immediately after the test as defined in EN 3745-301, method C. 5.2 Final measurements and requirements A visual examination shall be carried out as defined in EN 3745-201. The attenuation change shall be less than the specified value. BS EN3745-506:2009BSI GroupHeadquarters 389Chiswick Hi
25、gh Road,London, W4 4AL, UKTel +44 (0)20 8996 9001Fax +44 (0)20 8996 - British Standards InstitutionBSI is the independent national body responsible for preparing BritishStandards. It presents the UK view on standards in Europe and at theinternational level. It is incorporated by Royal Charter.Revis
26、ionsBritish Standards are updated by amendment or revision. Users of BritishStandards should make sure that they possess the latest amendments oreditions.It is the constant aim of BSI to improve the quality of our products and services.We would be grateful if anyone finding an inaccuracy or ambiguit
27、y while usingthis British Standard would inform the Secretary of the technical committeeresponsible, the identity of which can be found on the inside front cover. Tel:+44 (0)20 8996 9000. Fax: +44 (0)20 8996 7400.BSI offers members an individual updating service called PLUS which ensuresthat subscri
28、bers automatically receive the latest editions of standards.Buying standardsOrders for all BSI, international and foreign standards publications should beaddressed to Customer Services. Tel: +44 (0)20 8996 9001. Fax: +44 (0)20 89967001 Email: You may also buy directly using a debit/creditcard from
29、the BSI Shop on the Website http:/ response to orders for international standards, it is BSI policy to supply theBSI implementation of those that have been published as British Standards,unless otherwise requested.Information on standardsBSI provides a wide range of information on national, European
30、 andinternational standards through its Library and its Technical Help to ExportersService. Various BSI electronic information services are also available whichgive details on all its products and services. Contact Information Centre. Tel:+44 (0)20 8996 7111 Fax: +44 (0)20 8996 7048 Email: Subscribi
31、ng members of BSI are kept up to date with standards developmentsand receive substantial discounts on the purchase price of standards. For detailsof these and other benefits contact Membership Administration. Tel: +44 (0)208996 7002 Fax: +44 (0)20 8996 7001 Email: Information regarding online access
32、 to British Standards via British StandardsOnline can be found at http:/ information about BSI is available on the BSI website at http:/.CopyrightCopyright subsists in all BSI publications. BSI also holds the copyright, in theUK, of the publications of the international standardization bodies. Excep
33、t aspermitted under the Copyright, Designs and Patents Act 1988 no extract maybe reproduced, stored in a retrieval system or transmitted in any form or by anymeans electronic, photocopying, recording or otherwise without prior writtenpermission from BSI.This does not preclude the free use, in the co
34、urse of implementing the standard,of necessary details such as symbols, and size, type or grade designations. Ifthese details are to be used for any other purpose than implementation then theprior written permission of BSI must be obtained.Details and advice can be obtained from the Copyright and Licensing Manager.Tel: +44 (0)20 8996 7070 Email:
