1、Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 09/05/2008 08:24, Uncontrolled Copy, (c) BSIg49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58T
2、est methods Part 505: Cable tensile strengthICS 49.060Aerospace series Fibres and cables, optical, aircraft use BRITISH STANDARDBS EN 3745-505:2007BS EN 3745-505:2007Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 09/05/2008 08:24, Uncontrolled Copy, (c) BSIThis British Standard was published
3、 under the authority of the Standards Policy and Strategy Committee on 29 February 2008 BSI 2008ISBN 978 0 580 56977 7Amendments/corrigenda issued since publicationDate Commentscontract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from
4、legal obligations. National forewordThis British Standard is the UK implementation of EN 3745-505:2007.The UK participation in its preparation was entrusted by Technical Committee ACE/6, Aerospace avionic electrical and fibre optic technology, to Panel ACE/6/-/10, Aerospace Fibre optic systems and e
5、quipment.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 3745-505August 2007ICS 49.060English VersionAerospace series - F
6、ibres and cables, optical, aircraft use - Testmethods - Part 505: Cable tensile strengthSrie arospatiale - Fibres et cbles optiques usagearonautique - Mthodes dessais - Partie 505 : Tenue entractionLuft- und Raumfahrt - Faseroptische Leitungen frLuftfahrzeuge - Prfverfahren - Teil 505: Zugfestigkeit
7、This European Standard was approved by CEN on 23 June 2007.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical referenc
8、es concerning such nationalstandards may be obtained on application to the 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 translationunder the responsibility of a CEN member into i
9、ts own language and notified to the CEN Management Centre has the same status as theofficial 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, Lith
10、uania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2007 CEN
11、 All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 3745-505:2007: ELicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 09/05/2008 08:24, Uncontrolled Copy, (c) BSI2 Contents Page Foreword3 1 Scope 4 2 Normative references 4 3 Preparatio
12、n of specimens.4 4 Apparatus .4 5 Method 5 EN 3745-505:2007Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 09/05/2008 08:24, Uncontrolled Copy, (c) BSI3 Foreword This document (EN 3745-505:2007) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization
13、ASD-STAN). After enquiries and votes carried out in accordance with the rules of this Association, this Standard has received the approval 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 t
14、he status of a national standard, either by publication of an identical text or by endorsement, at the latest by February 2008, and conflicting national standards shall be withdrawn at the latest by February 2008. Attention is drawn to the possibility that some of the elements of this document may b
15、e 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 following countries are bound to implement this European Standard: Austria, B
16、elgium, 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 the United Kingdom. EN 3745-505:200
17、7Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 09/05/2008 08:24, Uncontrolled Copy, (c) BSI4 1 Scope This standard specifies a method for measuring the tensile properties of a fibre optic cable. It shall be used together with EN 3745-100. 2 Normative references The following referenced docu
18、ments are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 3745-100, Aerospace series Fibres and cables, optical, aircraft use Test me
19、thods Part 100: General. 1)EN 3745-201, Aerospace series Fibres and cables, optical, aircraft use Test methods Part 201: Visual examination. EN 3745-301, Aerospace series Fibres and cables, optical, aircraft use Test methods Part 301: Attenuation. EN 187000, Method 501, Generic specification for opt
20、ical fibre cables. 3 Preparation of specimens Prepare test sample in accordance with EN 187000, Method 501. Sample length can be more than 100 m for test A and 5 m for test B. 4 Apparatus The apparatus shall comprise: Fibre and cable attenuation test apparatus as defined in EN 3745-301; Tensile test
21、 apparatus in accordance with EN 187000, Method 501( for test A); Tensile test apparatus capable of measuring the specified elongation to an accuracy of 1 % (for test B). 1) In preparation at the date of publication of this standard. EN 3745-505:2007Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDA
22、RDS, 09/05/2008 08:24, Uncontrolled Copy, (c) BSI5 5 Method 5.1 General For measuring cable tensile strength method A or B can be used. Unless otherwise stated, the test conditions shall be standard atmospheric conditions. 5.2 Method A (using transfer device and chuck drum) The test shall be carried
23、 out in accordance with EN 187000, Method 501. 5.3 Method B (using clamping device) The cable shall be pulled between two mandrels. The initial length of the test specimen between the mandrels (min 50 mm diameter) shall be (250 1) mm. The pulling speed shall be (50 10) mm/mn. The cable shall be wrap
24、ped at least 3 turns on each mandrel. NOTE There must be sufficient grip between the test specimen and mandrel to avoid relative movement between cable and mandrel during test. 5.4 Final measurements and requirements If specified the value for the following shall conform to those given in the produc
25、t standard (see Table 1): Table 1 Object Test Method Aspect Visual examination as defined in EN 3745-201 A and B Attenuation Maximum recorded fibre strain at maximum tensile rating Maximum attenuation change at maximum tensile rating Maximum attenuation change before and after test (without load) A
26、A and B A and B Mechanical characteristics Maximum load up to optical discontinuity Breaking load for the complete cable A and B A and B EN 3745-505:2007Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 09/05/2008 08:24, Uncontrolled Copy, (c) BSIBS EN BSILicensed Copy: Wang Bin, ISO/EXCHANGE C
27、HINA STANDARDS, 09/05/2008 08:24, Uncontrolled Copy, (c) BSI389 Chiswick High RoadLondonW4 4AL3745-505:2007BSI British Standards InstitutionBSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level.
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