1、BRITISH STANDARD AEROSPACE SERIES BS EN 3475-504:2002 Cables, electrical, aircraft use Test methods Part 504: Torsion The European Standard EN 3475-504:2002 has the status of a British Standard ICS 49.060 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBS EN 3475-504:2002 This
2、British Standard, having been prepared under the direction of the Engineering Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 11 February 2002 BSI 11 February 2002 ISBN 0 580 38380 6 National foreword This British Standard is
3、the official English language version of EN 3475-504:2002. The UK participation in its preparation was entrusted by Technical Committee ACE/6, Aerospace, avionic, electrical and fibre optic technology, to Subcommittee ACE/6/2, Aerospace Cables, which has the responsibility to: A list of organization
4、s represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards C
5、orrespondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard doe
6、s not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and pr
7、omulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 4, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publi
8、cation Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN3475504 January2002 ICS49.060 Englishversion AerospaceseriesCables,electrical,aircraftuseTest methodsPart504:Torsion SriearospatialeCbleslectriquesusage aronautiqueMthodesdessaiPartie504:Torsion LuftundRaumfahrtElektrische
9、LeitungenfrLuftfahrt, VerwendungPrfverfahrenTeil504:Torsion ThisEuropeanStandardwasapprovedbyCENon6August2001. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbib
10、liographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifie
11、dtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEF
12、ORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2002CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN3475504:2002EEN3475504:2002(E) 2 Foreword Thisdocument(EN3475504:2002)hasbee
13、npreparedbytheEuropeanAssociationofAerospace Manufacturers(AECMA). AfterenquiriesandvotescarriedoutinaccordancewiththerulesofthisAssociation,thisStandardhas receivedtheapprovaloftheNationalAssociationsandtheOfficialServicesofthemembercountriesof AECMA,priortoitspresentationtoCEN ThisEuropeanStandard
14、shallbegiventhestatusofanationalstandard,eitherbypublicationofanidentical textorbyendorsement,atthelatestbyJuly2002,andconflictingnationalstandardsshallbewithdrawnatthe latestbyJuly2002. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoi
15、mplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark, Finland,France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway, Portugal,Spain,Sweden,SwitzerlandandtheUnitedKingdom.EN3475504:2002(E) 3 1 Scope Thisstandardspecifiesamethodofcheckingtheresistancetodamageund
16、ertorsionofinsulatedconductors orfinishedcables. ItshallbeusedtogetherwithEN3475100. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreferenceprovisionsfromotherpublications. Thesenormativereferencesarecitedattheappropriateplacesinthetextandthepublicationsarelisted hereafter.Fo
17、rdatedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplyto thisEuropeanStandardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthe latesteditionofthepublicationreferredtoapplies. EN3475100 AerospaceseriesCables,electrical,aircraftuseTestmethodsPart100:General
18、 3 Preparationofaspecimen Aspecimen250mmlongispreagedfor50hinanovenattemperatureT 4 (specifiedintheproduct standard). 4 Apparatus Theapparatusshallconsistbasicallyoftwoclampsforthespecimen,axiallyalignedandfacetoface,andat suchadistancethatthespecimenistaut(seefigure1). Oneoftheclampsshallbeabletotu
19、rn360onbothsidesofthespecimenaxis,sothattheeffectsoftorsion anduntwistingareappliedonthetauttestpiece. Theotherclampshallbecapableofmovementparalleltotheaxisofthespecimen,sothatitiskepttautby meansofaloaddefinedinthetechnicalspecification.Itshallnotrotate. Theapparatusshallbeplacedinachamberattemper
20、atureT 3 ,specifiedintheproductstandard.EN3475504:2002(E) 4 Key 1 Slidingattachment 2 Specimen 3 Rotatingattachment 4 Counterweight 5 Heatingchamber Figure1Generalarrangement 5 Method 5.1 Procedure Theagedspecimenshallbesecuredinthetorsionapparatusandstretchedbyaloaddefinedinthetechnical specificati
21、on.ThewholeunitshallthenbeplacedinachamberbroughtuptoatemperatureT 3 andthe torsiontestsshallbecarriedoutatthistemperature. Eachtorsioncyclecorrespondstotherotationofthespecimen360inonedirection,then720intheother directionandoncemore360intheinitialdirection,bringingthespecimenbacktopositionzero. 5.2
22、 Requirements 100cyclesshallbecarriedoutinthismannerataspeedoffivetosixcyclesperminute. Theequipmentshallthenberemovedfromtheheatchamberandthespecimenfromtheattachmentdevice. Avisualinspectionshallthenbemadeofthespecimentodetectanypossibledebondingfromtheinsulation. Anydebondingoflayerseitheralongth
23、einsulationorattheendsshallbeconsideredasadefect.BS EN 3475-504:2002 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international le
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