BS EN 3745-506-2009 Aerospace series — nFibres and cables noptical aircraft use — nTest methods nPart 506 Impact resistance《航空航天系列 飞行器用光纤和电缆 试验方法 第506部分 抗冲击力》.pdf

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9、g3g36g22g10g10g16g36g11g3g13g20g20g21g7g36g13g11g7g22g14g35g3g29g21g30g31g23g20g18g22g32g26g3g27g20g19g33g3g18g3g5g25g20g19g20g34g33g3g6g19g18g22g28g18g25g28g3g32g18g22g22g21g19g3g32g21g22g24g26g25g3g20g30g30g35g22g20g19g36g24g25g21g30g3g23g26g37g18g23g3g21g38g23g20g37g18g19g20g21g22g34g39BS EN 3745

10、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 resistance Srie arospatiale - Fibres et cbles optiques usage aronautique - Mthodes dessais - Par

11、tie 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 bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions fo

12、r 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 the CEN Management Centre or to any CEN member. This European Standard exists in three offici

13、al 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 status as the official versions. CEN members are the national standards bodies of Austria,

14、Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE

15、 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 reserved worldwide for CEN national Members. Ref. No. EN 3745-506:2009: EBS EN 3745-506:2009EN 3745

16、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 3745-506:2009EN 3745-506:2009 (E) 3 Foreword This document (EN 3745-506:2009) has been prepared by the

17、 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 approval of the National Associations and the Official Services of the member countries of ASD

18、 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 conflicting national standards shall be withdrawn at the latest by February 2010. Attention i

19、s 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. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the fo

20、llowing 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, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia,

21、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 withstand impact under specified environmental conditions. 2 Normative references The following ref

22、erenced 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 (including any amendments) applies. EN 2591-100, Aerospace series Elements of electrical and optical

23、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, aircraft use Test methods Part 201: Visual inspection EN 3745-301, Aerospace series Fibres and cab

24、les, 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 subjected to standard test conditions and sta-bilized at these conditions for 24 h as defined

25、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 the tech-nical specification: a) the temperature at which test is carried out if other than s

26、tandard; 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 permissible change in attenuation after the test. 4 Apparatus The apparatus shall comprise: a

27、) 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 vertically onto an intermediate piece of steel which transmits the impact to the cable sample.

28、 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 shall be measured as defined in EN 3745-301, method C. The mass of the weight and the height fr

29、om 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 measured immediately after the test as defined in EN 3745-301, method C. 5.2 Final measurem

30、ents 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. g5g6g3g29g67g68g52g42g69g4g69g44g49g40g46g44g44g48g5g6g7g3g70g21g17g30g15g60g12g16g14g36g30g16g21g10g12g21g9g3g68g47g48g33g11g8g9g28g8g31g35g3g60g

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40、1g9g14g22g3g11g10g13g14g15g13g8g15g11g55g21g14g12g21g9g3g22g17g21g3g16g18g18g3g5g6g7g38g3g8g13g10g12g21g13g16g10g8g17g13g16g18g3g16g13g14g3g22g17g21g12g8g23g13g3g9g10g16g13g14g16g21g14g9g3g15g30g19g18g8g31g16g10g8g17g13g9g3g9g11g17g30g18g14g3g19g12g16g14g14g21g12g9g9g12g14g3g10g17g3g33g30g9g10g17g34

41、g12g21g3g6g12g21g27g8g31g12g9g24g3g39g12g18g40g3g41g42g42g3g43g44g45g46g44g3g47g48g48g49g3g48g44g44g56g24g3g50g16g51g40g3g41g42g42g3g43g44g45g46g44g3g47g48g48g49g52g44g44g56g3g29g34g16g8g18g40g3g17g21g14g12g21g9g57g19g9g8g23g21g17g30g15g24g31g17g34g3g58g17g30g3g34g16g20g3g16g18g9g17g3g19g30g20g3g14g

42、8g21g12g31g10g18g20g3g30g9g8g13g23g3g16g3g14g12g19g8g10g59g31g21g12g14g8g10g31g16g21g14g3g22g21g17g34g3g10g11g12g3g5g6g7g3g6g11g17g15g3g17g13g3g10g11g12g3g37g12g19g9g8g10g12g3g11g10g10g15g40g59g59g28g28g28g24g19g9g8g23g21g17g30g15g24g31g17g34g59g9g11g17g15g7g13g3g21g12g9g15g17g13g9g12g3g10g17g3g17g2

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45、16g10g8g17g13g3g17g13g3g13g16g10g8g17g13g16g18g38g3g29g30g21g17g15g12g16g13g3g16g13g14g8g13g10g12g21g13g16g10g8g17g13g16g18g3g9g10g16g13g14g16g21g14g9g3g10g11g21g17g30g23g11g3g8g10g9g3g54g8g19g21g16g21g20g3g16g13g14g3g8g10g9g3g39g12g31g11g13g8g31g16g18g3g60g12g18g15g3g10g17g3g29g51g15g17g21g10g12g21

46、g9g6g12g21g27g8g31g12g24g3g61g16g21g8g17g30g9g3g5g6g7g3g12g18g12g31g10g21g17g13g8g31g3g8g13g22g17g21g34g16g10g8g17g13g3g9g12g21g27g8g31g12g9g3g16g21g12g3g16g18g9g17g3g16g27g16g8g18g16g19g18g12g3g28g11g8g31g11g23g8g27g12g3g14g12g10g16g8g18g9g3g17g13g3g16g18g18g3g8g10g9g3g15g21g17g14g30g31g10g9g3g16g1

47、3g14g3g9g12g21g27g8g31g12g9g24g3g33g17g13g10g16g31g10g3g7g13g22g17g21g34g16g10g8g17g13g3g33g12g13g10g21g12g24g3g39g12g18g40g41g42g42g3g43g44g45g46g44g3g47g48g48g49g3g52g56g56g56g3g50g16g51g40g3g41g42g42g3g43g44g45g46g44g3g47g48g48g49g3g52g44g42g47g3g29g34g16g8g18g40g3g8g13g22g17g57g19g9g8g23g21g17g3

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