【astm標(biāo)準(zhǔn)】d 4566 - 14

1、Designation:D4566?14StardTestMethodsfElectricalPerfmancePropertiesofInsulationsJacketsfTelecommunicationsWireCable1ThisstardisissuedunderthefixeddesignationD4566thenumberimmediatelyfollowingthedesignationindicatestheyear

2、ofiginaladoptioninthecaseofrevisiontheyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperepsilon()indicatesaneditialchangesincethelastrevisionreapproval.1.Scope1.1Thesetestmethodscoverprocedure

3、sfelectricaltestingofthermoplasticinsulationsjacketsusedontelecommunicationswirecablefthetestingofelectricalacteristicsofcompletedproducts.Todeterminetheproceduretobeusedontheparticularinsulationjacketcompoundontheendpro

4、ductreferenceshouldbemadetothespecificationftheproduct.1.2Thetestmethodsappearinthefollowingsectionsofthisstard:TestMethodSectionsElectricalTestsofInsulation—InProcess4–8DCprooftest8Insulationdefectfaultrate7Sparktest6El

5、ectricalTestsofCompletedWireCable9–51Attenuation24Attenuationeffectsduetoaging31Attenuationeffectsduetoelevatedtemperature29Attenuationeffectsduetohuity30Attenuationtocrosstalkratio—farend(ACRF)28Attenuationtocrosstalkra

6、tio—nearend(ACRN)26Capacitancedeviation19Capacitancedifference20CapacitanceunbalancePairtoground(CUPG)22CapacitanceunbalancePairtopair(CUPP)21CapacitanceunbalancePairtosupptwire23acteristicImpedance—Method1Propagationcon

7、stantcapacitance47acteristicImpedance—Method2Singleendedmeasurements48acteristicImpedance—Method3LeastSquaresFunctionFit49Coaxialcapacitance(capacitancetowater)17Conductcontinuity11Conductresistance(CR)13Conductresistanc

8、eunbalance(CRUofpairs)15Continuityofothermetallicelements12Crossestest(continuitybetweenwiresofdifferentpairs)35Crosstalklossfarend27Crosstalklossnearend25TestMethodSectionsDCprooftestCetointernalshield(screen)40DCprooft

9、estCetoshield38DCprooftestCetosupptwire39DCprooftestInternalshield(screen)toshield41DCprooftestOtherrequiredisolations42DCprooftestWiretowire37Faultratetest(airceonly)33Insulationresistance(IR)32Jacketvoltagebreakdownrat

10、ingtest36Mutualcapacitance(CM)18Mutualconductance16PhaseConstant44PhaseDelay45PhaseVelocity46Resistanceofothermetalliccableelements14Shtstest(continuitybetweenwiresofapair)34StructuralReturnLossReturnLoss50Unbalanceatten

11、uation(conversionlosses)51Voltagesurgetest431.3Thevaluesstatedininchpoundunitsaretoberegardedasstard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedfinfmationonlyarenotconsideredstard.1.4Thi

12、sstarddoesnotpurpttoaddressallofthesafetyconcernsifanyassociatedwithitsuse.Itistheresponsibilityoftheuserofthisstardtoestablishappropriatesafetyhealthpracticesdeterminetheapplicabilityofregulatylimitationspritouse.Specif

13、ichazardstatementsaregiveninSections637.2.ReferencedDocuments2.1ASTMStards:2B193TestMethodfResistivityofElectricalConductMaterialsD150TestMethodsfACLossacteristicsPermittivity(DielectricConstant)ofSolidElectricalInsulati

14、onD1711TerminologyRelatingtoElectricalInsulationD2633TestMethodsfThermoplasticInsulationsJacketsfWireCableD3426TestMethodfDielectricBreakdownVoltageDielectricStrengthofSolidElectricalInsulatingMaterials1Thesetestmethodsa

15、reunderthejurisdictionofASTMCommitteeD09onElectricalElectronicInsulatingMaterialsarethedirectresponsibilityofSubcommitteeD09.18onSolidInsulationsNonMetallicShieldingsCoveringsfElectricalTelecommunicationWiresCables.Curre

16、nteditionapprovedMay152014.PublishedMay2014.iginallyapprovedin1986.Lastpreviouseditionapprovedin2008asD4566–08ε1.DOI:10.1520D456614.2FreferencedASTMstardsvisittheASTMwebsitewww.astm.gcontactASTMCustomerServiceat.FAnnualB

17、ookofASTMStardsvolumeinfmationrefertothestard’sDocumentSummarypageontheASTMwebsite.ASummaryofChangessectionappearsattheendofthisstardCopyright?ASTMInternational100BarrHarbDrivePOBoxC700WestConshohockenPA194282959.UnitedS

18、tates1voltageifaconemeofvariousfrequenciesareused.Fsafetytopersonnelsparktestequipmentisusuallycurrentlimitedtolevelsnmallyconsideredtobenonlethal.Unlessotherwisespecifiedthetestvoltagelevelemployedshallbeatthediscretion

19、ofthemanufacturer.6.4Unlessotherwiselimitedbydetailedspecificationrequirementsvarioustypesofelectrodessuchasbeadchainswaterionizedairspringrodsareamongelectrodetypesthathavebeensuccessfullyemployedatthediscretionoftheman

20、ufacturer.Thelengthoftheelectrodeisalsovariableunlessotherwiselimitedbydetailedspecificationrequirementselectrodesizelengthshallbesuchthatthetesterwilloperatesuccessfullyfanyparticularrateoftraveloftheproductthroughthete

21、sterthatisused.Inspiteofcurrentlimitationselectrodesarenmallyprovidedwithgroundedmetallicscreensshieldstoguardagainstaccidentalpersonnelcontact.6.5Bothendsoftheconductofaninsulatedwirebothendsofametallicshieldunderacable

22、jacketaregroundedthenattachedtothegroundsideofthetester.Attachthehighvoltagesideofthetestertothesparkerelectrode.Setthetestvoltageatthelevelspecified.Unlessotherwisespecifiedenergizethesparktesterwhenevertheproducttobete

23、stedismovingthroughtheelectrode.Takeappropriateaction(fexampleflagdefectscountdefectsadjusttheprocessetc.)whenifdefectsaredetected.6.6Rept:6.6.1Reptthefollowinginfmationrecdedonsuitablefms(thatisproductionrepts):6.6.1.1M

24、achinenumbertype(thatisextrudertwisteretc.)6.6.1.2Dateofproductiontest6.6.1.3Insulationtype(aircefilledce)conductgagefootage6.6.1.4Voltagelevel6.6.1.5Numberofindicatedfaults.6.7PrecisionBias—Theprecisionofthistesthasnotb

25、eendetermined.Nostatementcanbemadeaboutthebiasofthissparktestsincetheresultmerelystateswhetherthereisconfmancetothecriteriafsuccessspecifiedintheproductspecification.7.InsulationDefectFaultRate—InProcess7.1Fpurposesofinp

26、rocessqualitycontrolitisdesirabletomonitrecdinprocessfaultsataparticularoperation(suchasextruderstwistersetc.)relatethenumberofdefectsfoundtothequantityofproductproduced.7.2Whenappropriateusingrecdsofthequantityofproduct

27、producedversusthenumberofinsulationdefectscountedafaultratesuchasthefollowingratioisused:FaultRate5NL51X(1)where:N=thenumberoffaultsdetectedL=thelengthoftheproductoverwhichthefaultsaredetectedX=theaveragelengthoftheprodu

28、ctperfault.7.3Faultratesaredeterminedfanyparticulartimeframeasdesiredhoweverminimumindustrypracticeistokeepfaultraterecdscoveringperiodsapproximating1monthwithcumulativerecdskeptf6monthperiods(fexamplefthefirst6monthsoft

29、heyearthefaultratewas140000ftmeaning1fault40000conductft).7.4Rept—Reptinaccdancewith6.6.7.5PrecisionBias—Theprecisionofthistesthasnotbeendetermined.Nostatementcanbemadeaboutthebiasofthistestfinsulationdefectfaultratesinc

30、etheresultmerelystateswhetherthereisconfmancetothecriteriafsuccessspecifiedintheproductspecification.8.DCProofTest—InProcess8.1Fpurposesofinprocessqualitycontrolitisdesirabletodcprooftestproductatonemestagesofprocessingp

31、ritothefinaltestoperation.Suchtestingisnmallyatthediscretionofthemanufacturer.8.2ConductwiretowiredcprooftestsinaccdancewithSection37atasuitablestageofproductionasdesignatedbythefactymanagement.8.3Rept—Reptinaccdancewith

32、Section52exceptthat52.1.5doesnotapply.8.4PrecisionBias—Theprecisionofthistesthasnotbeendetermined.Nostatementcanbemadeaboutthebiasofthisdcprooftestsincetheresultmerelystateswhetherthereisconfmancetothecriteriafsuccessspe

33、cifiedintheproductspecification.ELECTRICALTESTSOFCOMPLETEDWIRECABLE9.Scope9.1ElectricaltestsofcompletedwirecableincludeverificationofsomeallofthepropertiesinaccdancewithSections11through51.10.SignificanceUse10.1Electrica

34、ltestsproperlyinterpretedprovideinfmationwithregardtotheelectricalpropertiesoftheinsulationofthejacketboth.Theelectricaltestvaluesgiveanindicationastohowthewirecablebothwillperfmunderconditionssimilartothoseobservedinthe

35、tests.Electricaltestsprovidedatafresearchdevelopmentengineeringdesignqualitycontrolacceptancerejectionunderspecifications.11.ConductContinuity11.1Continuityoftheconductsofatelecommunicationswirecableisacriticalacteristic