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1、IECIECTR61292-4Edition4.02023-01TECHNICA1.REPORTco1.ourinsideOptica1.amp1.ifiers-Part4:Maximumpermissib1.eoptica1.powerforthedamage-freeandsafeuseofoptica1.amp1.ifiers,inc1.udingRamanamp1.ifiersATHISPUB1.ICATIONISCOPYRIGHTPROTECTEDCoPyright2023IEC1Geneva,Switzer1.andAJ1.rightsresec伯d.UnteesO1.herWig
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3、pte-ascontacttheaddressM11oryour1.oca1.IECmc11crNatKXI霖COmn1.inCfxfurtheri11formatkx.IECSeaeiariaiTd.:412291902113.ruedeVarembe,Mca1.Commtsskxi(IEC)isth1.eadinggota1.organizationthatpreparesandpunishes1.nf11abona1.Standards1.ota1.1.e1.ectricai.Gectronicandre1.atedIechnoksgies.AboutIECpub1.icationsTh
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6、ingmorethan22300trm11otogicaentriesinEng1.shandFrench,withequcvaie!termsin19additiona1.1.anguages.A1.soKnOWnasteInternationa1.Etectfotechnica1.Vocabu1.ary(IEV)oi11o.IECIECTR61292-4Edition4.02023-01TECHNICA1.REPORTco1.ourinsideOptica1.amp1.ifiers-Part4:Maximumpermissib1.eoptica1.powerforthedamage-fre
7、eandsafeuseofoptica1.amp1.ifiers,inc1.udingRamanamp1.ifiersINTERNATIONA1.E1.ECTROTECHNICA1.COMMISSIONICS33.160.10;33.1M.30ISBN978-2-8322-6339-6Warning!Makesurethatyouobtainedthispub1.icationfromanauthorizeddistributor.RcoaC8HadWTUrt1.cfroIrsFsaJ8c11nh*3J8rm44iocCONTENTSFOREWORD4INTRODUCTION61 Scope7
8、2 Normativereferences73 Terms,do1irwt1.ocs.andabbreviatedterms83.1 Termsanddefinitions.832Abbreviatedterms84 Maximumtransmissib1.eoptica1.powertokeepfibresdamage-free84.1 Genera1.84.2 Fibrefuseanditspropagation94.3 1.ossifXjuccdheatingatconnectorsorsp1.ices104.4 4ConncckxCndfaCe(IarnagCinducedbydust
9、,contamination114.5 Fibreatbum,m1.tinducedbytightfibrebending134.6 Summaryofthefibredamage145 Maximumtransmissib1.eoptica1.powertokeepeyesandskinsafe155.1 Maximumtransmtssib1.exposure(MPEonthesurfaceofeyeandskin155.2 Maximumpermissib1.eoptica1.POWerthefibreforthesafetyofeyeandskin155.2.1 POwerIimit1
10、5522NeedforAPR165.2.3 Wave1.engths175.2.4 1.ocations17525Nomina1.ocu1.arhazarddistance(NOHD)175.2.6 POWarreductiontimes175.2.7 Medica1.aspectsofthesafetyofeyesandskininexistingstandards186 Maximumoptica1.powerpermissibteforoptica1.amp1.ifiersfromtheviewpointoffibredamageaswe1.1.aseyeandskinsafety197
11、 Conc1.usion19AnnoxA(informative)Genera1.informationforoptica1.fibrefuse20A.1Introductoryremark20A-2Generatingmechanism20A.3Voidfortnationmechanism24A4Propagationcharacteristicofafibreiu$e24A5Preventionandtermination26A5.1Genera1.26A52Preventionmethods26A53Terminationmethods27A.6Additiona1.safetyinf
12、ormation29A7Conc1.usion29Bib1.iography30Figure 1 -Experimenta1.setupforIibrCfusepropagation9Figure 2 -Connection1.ossversustemperatureincrease11Figure 3 -Testset-up11Figure 4 -Surfacenditionntamiatedwihmeta1.Ii1.mgs.beforethetest12Figure 5 -VariationofPOWGrattenuationduringts1.atsevera1.powerinputva
13、1.uesfoep1.ugscontaminatedwithmeta1.fSngs13Figure 6 -Pofcshingsurfacenditionntami11atedwithmeta1.fiSng.aftertest13Figure 7 -ThemoVieWerimageoftight1.ybentSMFMhoptica1.POWerOf3Wa1.148Onm14Figure 8 -Temperatureo1thecoatingsurfaceofSMFsagainstbedgwithoptica1.powrof3Wat1480nm14Figure 9 -MaximumPCrmeSSiMPoWfyinthe1.rcagainstAPRPOwerroductontime18FigureA.1-Frontpartofthefibrefusedamagegeneratedintheoptica1.fibre20FigureA.2-SiOabsorptionmode1.22FigureA.3-Ca1.1.atedfixefusepropagationbehaviourSimUatedWiththeSiOabsorptionmode1.23FigureA.4-Seriesofoptica1.
