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TBTB/T1678199719970921199804011.2.GB1417GB1365TB14463.*()a)b)4.4.1.4.1.1.strongcurrentline1OkV4.1.2.weakcurrentline4.1.3.industrialfrequencysinglephascACelectrictractionsystem4.1.4.electrictractionfeedingsystem4.1.5.tractionsubstation24.1.6.subsectionpost4.1.7.feedingsection4.1.8.Overheadcontactlineequipment4.1.9.sectionpost4.1.10.pantograph4.1.11.onewayfeeding4.1.12.twowayfeeding4.1.13.normaloperationofoverheedcontactlineequipment4.1.14.overzonefeeding4.1.15.shortcircuitforoverheedcontactlineequipment4.1.16.electrictractioninterference4.1.17.ratedvoltageofoverheedcontactlineequipment25kY4.1.18.tractioncurrent4.1.19.equivalenttractioncurrent4.1.20.short—circuitcurrentofoverheedcontactlineequipment4.1.21.electrostaticinducedcurrent4.1.22.openwire34.1.23.openwiretransposition4.1.24.remotepowerfeedingcircuit4.1.25.physicalcircuit4.1.26.phantomcircuit4.1.27.wiredbroadcast4.1.28.testvoltageofcable4.1.29.primaryparameterofline4.1.30.secondaryparameterofline4.1.31.characteristicimpedance4.1.32.()spropagationconstant4.1.33.propagationconstantoftrack4.1.34.attenuationconstant4.1.35.phaseconstant4.1.36.shieldingfactor4.1.37.earthingdevice4.1.38.electromagneticenvironment4.1.39.(EMC)electromagneticcompatibility44.1.40.tolerablelimits4.1.41.exposure4.1.42.parallelism54.1.43.obliqueexposure54.1.44.complicatedexposure4.1.45.lengthofexposure4.1.46.lengthofcalculation4.1.47.lengthofextention4.1.48.separation4.1.49.equivalentdistanceoftheobliqueexposure4.1.50.crossing()()4.2.4.2.1.dangerousinfluence4.2.2.magneticinduction()4.2.3.electricinduction()4.2.4.influenceofgroundcurrent54.2.5.acousticshock4.2.6.terminaleffect4.2.7.sensecurrent4.2.8.releasecurrent4.2.9.heartfluttercurrent4.2.10.dischargevoltageofarrester4.2.11.breakdownvoltage4.2.12.stridingvoltage4.2.13.longitudinalelectromotiveforce4.2.14.voltagetoground4.2.15.()magneticcouplingfactor4.2.16.electriccouplingfactor4.2.17.earthconductivitylm1m24.2.18.apparentearthconductivity4.2.19.earthresistivity4.2.20.shieldingfactorofcable64.2.21.idealshieldingfactorofcable4.2.22.practicalshieldingfactorofcable4.2.23.shieldingfactorofcablecorewire4.2.24.shieldingfactorofaerialearthwire4.2.25.shieldingfactoroftrack4.2.26.shieldingfactoroftree4.2.27.shieldingfactorofbridge4.2.28.shieldingfactoroftunnel4.2.29.shieldingfactorofcity4.2.30.shieldingfactorofreturnwire4.2.31.combinationshieldingfactor4.3.4.3.1.disturbinginfluence74.3.2.()harmonic(component)4.3.3.harmonicinterfere4.3.4.()weighting4.3.5.()weightingnetwork4.3.6.noisevoltage6004.3.7.psophometricvoltage6004.3.8.psophometricelectromotiveforce6004.3.9.equivalentdisturbingcurrent800Hz800Hz4.3.10.equivalentnoiseEMF4.3.11.equivalentdisturbingvoltage800Hz800Hz4.3.12.noiseEMFoftelephonecircuit800Hz800Hz4.3.13.noise4.3.14.signaltonoiseratio4.3.15.waveformfactorofnoisevoltage84.3.16.sensitivitycoefficent4.3.17.acousticeffectfactor800Hz4.3.18.syllablearticulation4.3.19.intelligibility4.3.20.backgroundnoiseofchannel4.3.21.linenoise4.3.22.noiseshieldingfactorofcable4.3.23.noiseshieldingfactorofcablecorewire4.3.24.noiseshieldingfactorofbridge4.4.4.4.1.whitenoise4.4.2.randomnoise4.4.3.electromagneticnoise4.4.4.()radio(frequency)noise4.4.5.naturalnoise4.4.6.mallmadenoise94.4.7.unwantedsignal4.4.8.interferingsignal4.4.9.electromagneticdisturbance4.4.10.()radio(frequency)disturbance4.4.11.electromagneticinterference4.4.12.radiointerference4.4.13.conductedinterference4.4.14.radiatedinterference4.4.15.interferencesource4.4.16.[*]interferencedisturbancenoise]voltage[4.4.17.[interferencedisturbancenoise]current[]4.4.18.[][]interferencedisturbance[noise]fieldstrength[]L]4.4.19.[][]interferencedisturbance][noise]power[][]4.4.20.()immunity(todisturbance)4.4.21.transient4.4.22.pulse104.4.23.impulse4.4.24.spike4.4.25.pulsating4.4.26.ripplecontentalternatingcomponent4.5.4.5.1.shield4.5.2.shielding4.5.3.powerfactorcorrectionfilterofelectriclocomotive4.5.4.boostertransformer4.5.5.boostingcable4.5.6.returncable4.5.7.splitphasereturncable4.5.8.dampingsetRC4.5.9.coaxialpowercable4.5.10.autotransformer4.5.11.neutralizingtransformer114.5.12.phantomresonanttransformer4.5.13.reductiontransformer4.5.14.isolatingtransformer1:14.5.15.insulatingtransformer4.5.16.fuse4.5.17.arrester4.5.18.lightningarrester()4.5.19.protector4.5.20.impedancematchingtransformer4.5.21.anode4.5.22.aerialearthwire4.5.23.cablebond()4.5.24.()tiejumper12()4.5.25.undergrounddrainagewire4.5.26.nndergroundarcsuppressingwire4.5.27.longitudinalchokecoil4.5.28.drainagecoil()4.5.29.electricdrainager4.5.30.NNtypecoil4.5.31.changeroverelectriccoil4.5.32.protectionfilter4.5.33.acousticshocklimiter4.5.34.interferencesuppression4.5.35.suppressorsuppressioncomponent13141516171819:20