1、BRITISH STANDARDBS EN 3745-411:2007Aerospace series Fibres and cables, optical, aircraft use Test methods Part 411: Resistance to fluidsICS 49.060g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3
2、g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 3745-411:2007This British Standard was published under the authority of the Standards Policy and Strategy Committee on 29 February 2008 BSI 2008ISBN 978 0 580 53136 1National forewordThis British Standard is the UK implementation of EN 3745-411:200
3、7.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 equipment.A list of organizations represented on this committee can be obtained on request to its secr
4、etary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments/corrigenda issued since publicationDate CommentsEUROPEAN STANDA
5、RDNORME EUROPENNEEUROPISCHE NORMEN 3745-411August 2007ICS 49.060English VersionAerospace series - Fibres and cables, optical, aircraft use - Testmethods - Part 411: Resistance to fluidsSrie arospatiale - Fibres et cbles optiques usagearonautique - Mthodes dessais - Partie 411 : Rsistanceaux fluidesL
6、uft- und Raumfahrt - Faseroptische Leitungen frLuftfahrzeuge - Prfverfahren - Teil 411: Bestndigkeitgegen FlssigkeitenThis 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 Eu
7、ropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references 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 (Englis
8、h, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its 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, Cyp
9、rus, 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 FOR STANDARDIZATIONCOMIT
10、 EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2007 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 3745-411:2007: E2 Contents Page Foreword3 1 Scope 4 2 Normative refere
11、nces 4 3 Test procedures.4 4 Preparation of specimen.5 5 Methods 5 6 Requirements.5 EN 3745-411:20073 Foreword This document (EN 3745-411:2007) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-STAN). After enquiries and votes carried out in accor
12、dance 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 the status of a national standard, either by publication of
13、 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 be the subject of patent rights. CEN and/or CENELEC shall n
14、ot 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, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia
15、 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 3745-411:20074 1 Scope This standard specifies methods of measuring th
16、e fluid resistance of a finished cable. It shall be used together with EN 3745-100, EN 3909 and TR 4542. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the
17、 latest edition of the referenced document (including any amendments) applies. EN 3745-100, Aerospace series Fibres and cables, optical, aircraft use Test methods Part 100: General. 1)EN 3745-201, Aerospace series Fibres and cables, optical, aircraft use Test methods Part 201: Visual examination. EN
18、 3745-503, Aerospace series Fibres and cables, optical, aircraft use Test methods Part 503: Scrape abrasion. EN 3909, Aerospace series Test fluids for electric components and sub-assemblies. 2)TR 4542, Aerospace series Guidance for fluid tests. 1)3 Test procedures Two test procedures are proposed, d
19、epending of the need. Test method 1: occasional contamination Aim: to offer a test method to appreciate the behaviour of the insulation in case of occasional contamination. See EN 3909. Test method 2: extended contamination Aim: to measure the fluid resistance and to be applied for qualification of
20、a product standard. See EN 3909 (and associated TR 4542). Unless otherwise specified in the product standard, all fluids mentioned in EN 3909 are mandatory. 1) In preparation at the date of publication of this standard. 2) Published as ASD Prestandard at the date of publication of this standard. EN
21、3745-411:20075 4 Preparation of specimen For each fluid to be tested, take a clean specimen at least 1 m in length from a finished cable. If necessary an initial cleaning may be performed according to EN 3909. Unless otherwise stated in the product standard, each specimen shall be wound seven comple
22、te turns onto a mandrel of diameter 12 times the maximum outer diameter of the specimen without torsion, but with sufficient tension to ensure the specimen remains fully in contact with the mandrel. Remove the mandrel. 5 Methods With each so prepared specimen apply the procedure described in: EN 390
23、9 for method 1 or; EN 3909 for method 2. Only the coiled part shall be contaminated. 6 Requirements After being returned to ambient temperature and without final cleaning, examine the test sample visually, according to EN 3745-201 and record any change of condition from the initial examination. Stra
24、ighten or uncoil the coiled part of the cable. The contaminated specimen shall pass: the scrape abrasion test, according to EN 3745-503 as defined in the product standard for ambient temperature. EN 3745-411:2007BS EN 3745-411:2007BSI389 Chiswick High RoadLondonW4 4ALBSI British Standards Institutio
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