EN 3745-506-2009 en Aerospace series - Fibres and cables optical aircraft use - Test methods - Part 506 Impact resistance《航天系列 飞机用光学纤维及电缆的试验方法 第506部分 抗冲击性能》.pdf

《EN 3745-506-2009 en Aerospace series - Fibres and cables optical aircraft use - Test methods - Part 506 Impact resistance《航天系列 飞机用光学纤维及电缆的试验方法 第506部分 抗冲击性能》.pdf》由会员分享，可在线阅读，更多相关《EN 3745-506-2009 en Aerospace series - Fibres and cables optical aircraft use - Test methods - Part 506 Impact resistance《航天系列 飞机用光学纤维及电缆的试验方法 第506部分 抗冲击性能》.pdf（8页珍藏版）》请在麦多课文档分享上搜索。

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

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