1、NORME INTERNATIONALE CEI IEC INTERNATIONAL STANDARD 620054 Premiredition Firstedition 199908 Fiabilitdesdispositifsdinterconnexionetdes composantsoptiquespassifsfibresoptiques Partie4: Slectiondesproduits Reliabilityoffibreopticinterconnectingdevices andpassiveopticalcomponents Part4: Productscreeni
2、ng Numroderfrence Referencenumber CEI/IEC620054:1999Numrosdespublications Depuisle1erjanvier1997,lespublicationsdelaCEI sontnumrotespartirde60000. Publicationsconsolides Lesversionsconsolidesdecertainespublicationsde laCEIincorporantlesamendementssontdisponibles. Parexemple,lesnumrosddition1.0,1.1et
3、1.2 indiquentrespectivementlapublicationdebase,la publicationdebaseincorporantlamendement1,etla publicationdebaseincorporantlesamendements1 et2. Validitdelaprsentepublication LecontenutechniquedespublicationsdelaCEIest constammentrevuparlaCEIafinquilreflteltat actueldelatechnique. Desrenseignementsr
4、elatifsladatedereconfir mationdelapublicationsontdisponiblesdansle CataloguedelaCEI. Lesrenseignementsrelatifsdesquestionsltudeet destravauxencoursentreprisparlecomittechnique quiatablicettepublication,ainsiquelalistedes publicationstablies,setrouventdanslesdocumentsci dessous: SitewebdelaCEI* Catal
5、oguedespublicationsdelaCEI Publiannuellementetmisjour rgulirement (Catalogueenligne)* BulletindelaCEI DisponiblelafoisausitewebdelaCEI* etcommepriodiqueimprim Terminologie,symbolesgraphiques etlittraux Encequiconcernelaterminologiegnrale,lelecteur sereporteralaCEI60050: VocabulaireElectro techniqueI
6、nternational (VEI). Pourlessymbolesgraphiques,lessymboleslittraux etlessignesdusagegnralapprouvsparlaCEI,le lecteurconsulteralaCEI60027: Symboleslittraux utiliserenlectrotechnique,laCEI60417:Symboles graphiquesutilisablessurlematriel.Index,relevet compilationdesfeuillesindividuelles, etlaCEI60617: S
7、ymbolesgraphiquespourschmas. * Voiradressesitewebsurlapagedetitre. Numbering Asfrom1January1997allIECpublicationsare issuedwithadesignationinthe60000series. Consolidatedpublications ConsolidatedversionsofsomeIECpublications includingamendmentsareavailable.Forexample, editionnumbers1.0,1.1and1.2refer
8、,respectively,to thebasepublication,thebasepublicationincor poratingamendment1andthebasepublication incorporatingamendments1and2. Validityofthispublication ThetechnicalcontentofIECpublicationsiskept underconstantreviewbytheIEC,thusensuringthat thecontentreflectscurrenttechnology. Informationrelating
9、tothedateofthereconfirmation ofthepublicationisavailableintheIECcatalogue. Informationonthesubjectsunderconsiderationand workinprogressundertakenbythetechnical committeewhichhaspreparedthispublication,aswell asthelistofpublicationsissued,istobefoundatthe followingIECsources: IECwebsite* CatalogueofI
10、ECpublications Publishedyearlywithregularupdates (Onlinecatalogue)* IECBulletin AvailablebothattheIECwebsite*and asaprintedperiodical Terminology,graphicalandletter symbols Forgeneralterminology,readersarereferredto IEC60050:InternationalElectrotechnicalVocabulary (IEV). Forgraphicalsymbols,andlette
11、rsymbolsandsigns approvedbytheIECforgeneraluse,readersare referredtopublicationsIEC60027: Lettersymbolsto beusedinelectricaltechnology ,IEC60417: Graphical symbolsforuseonequipment.Index,surveyand compilationofthesinglesheets andIEC60617: Graphicalsymbolsfordiagrams. * Seewebsiteaddressontitlepage.N
12、ORME INTERNATIONALE CEI IEC INTERNATIONAL STANDARD 620054 Premiredition Firstedition 199908 Fiabilitdesdispositifsdinterconnexionetdes composantsoptiquespassifsfibresoptiques Partie4: Slectiondesproduits Reliabilityoffibreopticinterconnectingdevices andpassiveopticalcomponents Part4: Productscreenin
13、g Commission Electrotechnique Internationale InternationalElectrotechnicalCommission Pourprix,voircatalogueenvigueur Forprice,seecurrentcatalogue IEC1999Droitsdereproductionrservs Copyrightallrightsreserved Aucunepartiedecettepublicationnepeuttrereproduiteni utilisesousquelqueformequecesoitetparaucu
14、nprocd, lectroniqueoumcanique,ycomprislaphotocopieetles microfilms,sanslaccordcritdelditeur. Nopartofthispublicationmaybereproducedorutilizedin anyformorbyanymeans,electronicormechanical, includingphotocopyingandmicrofilm,withoutpermissionin writingfromthepublisher. InternationalElectrotechnicalComm
15、ission 3,ruedeVarembGeneva,Switzerland Telefax:+41229190300 email:inmailiec.ch IECwebsitehttp:/www.iec.ch CODEPRIX PRICECODE E2 620054 CEI:1999 COMMISSIONLECTROTECHNIQUEINTERNATIONALE _ FIABILITDESDISPOSITIFSDINTERCONNEXIONETDES COMPOSANTSOPTIQUESPASSIFSFIBRESOPTIQUES Partie4:Slectiondesproduits AVA
16、NTPROPOS 1) LaCEI(CommissionElectrotechniqueInternationale)estuneorganisationmondialedenormalisationcompose delensembledescomitslectrotechniquesnationaux(ComitsnationauxdelaCEI).LaCEIapourobjetde favoriserlacooprationinternationalepourtouteslesquestionsdenormalisationdanslesdomainesde llectricitetde
17、llectronique.Aceteffet,laCEI,entreautresactivits,publiedesNormesinternationales. Leurlaborationestconfiedescomitsdtudes,auxtravauxdesquelstoutComitnationalintressparle sujettraitpeutparticiper.Lesorganisationsinternationales,gouvernementalesetnongouvernementales,en liaisonaveclaCEI,participentgaleme
18、ntauxtravaux.LaCEIcollaboretroitementaveclOrganisation InternationaledeNormalisation(ISO),selondesconditionsfixesparaccordentrelesdeuxorganisations. 2) LesdcisionsouaccordsofficielsdelaCEIconcernantlesquestionstechniquesreprsentent,danslamesure dupossibleunaccordinternationalsurlessujetstudis,tantdo
19、nnquelesComitsnationauxintresss sontreprsentsdanschaquecomitdtudes. 3) Lesdocumentsproduitsseprsententsouslaformederecommandationsinternationales.Ilssontpublis commenormes,rapportstechniquesouguidesetagrscommetelsparlesComitsnationaux. 4) Danslebutdencouragerlunificationinternationale,lesComitsnatio
20、nauxdelaCEIsengagentappliquerde faontransparente,danstoutelamesurepossible,lesNormesinternationalesdelaCEIdansleursnormes nationalesetrgionales.ToutedivergenceentrelanormedelaCEIetlanormenationaleourgionale correspondantedoittreindiqueentermesclairsdanscettedernire. 5) LaCEInafixaucuneprocdureconcer
21、nantlemarquagecommeindicationdapprobationetsaresponsabilit nestpasengagequandunmatrielestdclarconformelunedesesnormes. 6)LattentionestattiresurlefaitquecertainsdeslmentsdelaprsenteNormeinternationalepeuventfaire lobjetdedroitsdepropritintellectuelleoudedroitsanalogues.LaCEInesauraittretenuepour resp
22、onsabledenepasavoiridentifidetelsdroitsdepropritetdenepasavoirsignalleurexistence. LaNormeinternationaleCEI620054attablieparlesouscomit86B:Dispositifs dinterconnexionetcomposantspassifsfibresoptiques,ducomitdtudes86delaCEI: Fibresoptiques. Letextedecettenormeestissudesdocumentssuivants: FDIS Rapport
23、devote 86B/1212/FDIS 86B/1249/RVD Lerapportdevoteindiqudansletableaucidessusdonnetouteinformationsurlevoteayant aboutilapprobationdecettenorme. CettepublicationatrdigeselonlesDirectivesISO/CEI,Partie3.620054 IEC:1999 3 INTERNATIONALELECTROTECHNICALCOMMISSION _ RELIABILITYOFFIBREOPTICINTERCONNECTINGD
24、EVICESAND PASSIVEOPTICALCOMPONENTS Part4:Productscreening FOREWORD 1) TheIEC(InternationalElectrotechnicalCommission)isaworldwideorganizationforstandardizationcomprising allnationalelectrotechnicalcommittees(IECNationalCommittees).TheobjectoftheIECistopromote internationalcooperationonallquestionsco
25、ncerningstandardizationintheelectricalandelectronicfields.To thisendandinadditiontootheractivities,theIECpublishesInternationalStandards.Theirpreparationis entrustedtotechnicalcommittees;anyIECNationalCommitteeinterestedinthesubjectdealtwithmay participateinthispreparatorywork.International,governme
26、ntalandnongovernmentalorganizationsliaising withtheIECalsoparticipateinthispreparation.TheIECcollaboratescloselywiththeInternationalOrganization forStandardization(ISO)inaccordancewithconditionsdeterminedbyagreementbetweenthetwo organizations. 2) TheformaldecisionsoragreementsoftheIEContechnicalmatt
27、ersexpress,asnearlyaspossible,an internationalconsensusofopinionontherelevantsubjectssinceeachtechnicalcommitteehasrepresentation fromallinterestedNationalCommittees. 3) Thedocumentsproducedhavetheformofrecommendationsforinternationaluseandarepublishedintheform ofstandards,technicalreportsorguidesan
28、dtheyareacceptedbytheNationalCommitteesinthatsense. 4) Inordertopromoteinternationalunification,IECNationalCommitteesundertaketoapplyIECInternational Standardstransparentlytothemaximumextentpossibleintheirnationalandregionalstandards.Any divergencebetweentheIECStandardandthecorrespondingnationalorre
29、gionalstandardshallbeclearly indicatedinthelatter. 5) TheIECprovidesnomarkingproceduretoindicateitsapprovalandcannotberenderedresponsibleforany equipmentdeclaredtobeinconformitywithoneofitsstandards. 6)AttentionisdrawntothepossibilitythatsomeoftheelementsofthisInternationalStandardmaybethesubject of
30、patentrights.TheIECshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights. InternationalStandardIEC620054hasbeenpreparedbysubcommittee86B:Fibreoptic interconnectingdevicesandpassivecomponents,ofIECtechnicalcommittee86:Fibreoptics. Thetextofthisstandardisbasedonthefollowingdocuments: FDIS Re
31、portonvoting 86B/1212/FDIS 86B/1249/RVD Fullinformationonthevotingfortheapprovalofthisstandardcanbefoundinthereporton votingindicatedintheabovetable. ThispublicationhasbeendraftedinaccordancewiththeISO/IECDirectives,Part3.4 620054 CEI:1999 FIABILITDESDISPOSITIFSDINTERCONNEXIONETDES COMPOSANTSOPTIQUE
32、SPASSIFSFIBRESOPTIQUES Partie4:Slectiondesproduits 1 Domainedapplication LaprsenteNormeinternationalespcifieunemthodepourlaslectiondesproduits.Cette slectiondesproduitscorrecteestenfaitunprocessusetnonpasunessai.Acetitre,il convientquilsoitentretenuetconstammentvalid,afindesassurerquilatteintlobject
33、ifpour lequelilatdfini.Cettenormeestapplicableunproduitafindeconduiredesproduits ayantunmcanismededfaillanceconnu,avoirunedfaillancedanslecadredunesituation contrle,avantqueleproduitnesoitdploysurleterrain.Silestcorrectementappliqu, touteslesdfaillancesdemortalitinitialesurleterrain,associesauxmcani
34、smesde dfaillancepourletri,serontlimines. Lafigure1prsentelacourbetroisrgionsenbaignoireclassiquedestauxdedfaillance concernantlaplupartdesproduits.Bienquelonnaitpasmontrdefaonconcluantequeles tauxdedfaillancedescomposantsoptiquespassifssuivaientcettecourbe,elleestutiletitre dillustration.Pourcertai
35、nsproduits,laslectionestdsignecommecontraintedpreuveou danslecasdlectronique,commeprocessusderodage.Lorsdelapplicationauproduit,ce processusaffectenormalementletauxdedfaillanceappliqudurantlintervalledemortalit initialedanslecycledevieduproduit.Siletriestcorrectementchoisi,ilinduitunepartiedes dfail
36、lancesdemortalitinitialecausesparlesmcanismesdedfaillancechoisis, apparatredanslecycledefabrication,plusttquecequelonconstateraitnormalementdans legroupenonslectionn,reprsenticienlignediscontinue.Aussiconvientildenoterquun triexcutcorrectementnaffaiblitninedgradelefonctionnementdevieillissementoudef
37、in deviedungroupedeproduits.Danstouslescas,ilestrecommandqueletrinaffectepas nonpluslargionmoyennedanslutilisationenvienormale. RgionI Mortalit initiale RgionII Viedeproduit utile RgionIII Vieillissement Usine Champ= Tauxde dfaillance Temps= Produit slectionn Produitnon slectionn IEC940/99 Figure1Co
38、urbeenbaignoireclassiquedutauxdedfaillancedeproduits parrapportautemps620054 IEC:1999 5 RELIABILITYOFFIBREOPTICINTERCONNECTINGDEVICESAND PASSIVEOPTICALCOMPONENTS Part4:Productscreening 1Scope ThisInternationalStandarddescribesproductscreening.Aproperproductscreenisactuallya process,notatest.Asaproce
39、ss,itismaintainedandconstantlyvalidatedtoensureit achievesthepurposeforwhichitwasdefined.Thisprocessisappliedtoaproductinorderto induceproductswithaknownfailuremechanism,tofailinacontrolledsituationbeforethe productisdeployedinthefield.Ifthisprocessisproperlyapplied,thenallinfantmortality failuresin
40、thefield,associatedwiththefailuremechanism(s)forthescreen,willbeeliminated. Figure1showstheclassical“bathtub“threeregioncurveoffailureratesformostproducts. Althoughthefailureratesofpassiveopticalcomponentshavenotbeenconclusivelyshownto followthiscurve,itisusefulforillustrativepurposes.Screeningiskno
41、wnforsomeproductsas aproofstressorinthecaseofelectronics,asa“burninprocess“.Whenappliedtoaproduct, itwillnormallyaffectthefailurerateappliedduringtheinfantmortalityportionoftheproduct lifecycle.Ifthescreenisproperlychosen,itwillinduceaportionoftheinfantmortalityfailures causedbythechosenfailuremecha
42、nism(s)tooccurinthemanufacturingcycle,earlierthan wouldnormallybeseenintheunscreenedpopulationshowninthedashedline.Also,itshould benotedthataproperlyappliedscreendoesnotweakenordegradethewearoutorendoflife performanceofaproductpopulation.Inanycase,thescreenshouldalsonotaffectthemiddle regionofnormallifeutilization. RegionI infant mortality RegionII usefulproduct life Region
