ASTM D470-2005 电线和电缆用交联绝缘材料与套管的标准试验方法
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【英文标准名称】:StandardTestMethodsforCrosslinkedInsulationsandJacketsforWireandCable
【原文标准名称】:电线和电缆用交联绝缘材料与套管的标准试验方法
【标准号】:ASTMD470-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D09.18
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:电缆护套;电气工程;试验;电缆;绝缘电缆;金属线;绝缘;电绝缘;交联;电气试验;绝缘线
【英文主题词】:capacitance;coldbend;crosslinkedinsulation;dielectricwithstand;dissipationfactor;flammability;heatdistortion;heatexposure(aging);horizontalflametest;insulationresistance;mineralfillercontent;oilimmersion;ozoneresistan
【摘要】:Physicaltests,properlyinterpreted,provideinformationwithregardtothephysicalpropertiesoftheinsulationorjacket.Thephysicaltestvaluesgiveanapproximationofhowtheinsulationwillphysicallyperforminitsservicelife.Physicaltestsprovideusefuldataforresearchanddevelopment,engineeringdesign,qualitycontrol,andacceptanceorrejectionunderspecifications.1.1Thesetestmethodscoverproceduresfortestingcrosslinkedinsulationsandjacketsforwireandcable.Todeterminethetesttobemadeontheparticularinsulationorjacket,refertotheproductspecificationforthattype.Thesetestmethodsdonotapplytotheclassofproductsknownasflexiblecords.Thisstandarddoesnotpurporttoaddressallofthesafetyproblems,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.ForspecifichazardsseeSection.1.2Whenevertwosetsofvaluesarepresented,indifferentunits,thevaluesinthefirstsetarethestandard,whilethoseintheparenthesesareforinformationonly.1.3Inmanyinstancestheinsulationorjacketcannotbetestedunlessithasbeenformedaroundaconductororcable.Therefore,testsaredoneoninsulatedorjacketedwireorcableinthesetestmethodssolelytodeterminetherelevantpropertyoftheinsulationorjacketandnottotesttheconductororcompletedcable.1.4Theproceduresappearinthefollowingsections:1.5Thistestappliestothedetectionandmeasurementofpartialdischargesoccurringinthefollowingtypesofelectriccables:1.5.1Single-conductorshieldedcablesandassembliesthereof,and1.5.2Multiple-conductorcableswithindividuallyshieldedconductors.1.6Donotperformthesetestson:1.6.1Cableswhichhaveanonconductiveseparatorbetweentheconductorandtheinsulation,1.6.2Cableshavinginsulationslessthan0.045in.(1.14mm)thick,or1.6.3Insulationswithcoveringsthatarenotremovablewithoutdamagetotheinsulation.
【中国标准分类号】:K15
【国际标准分类号】:29_035_01
【页数】:25P.;A4
【正文语种】:
【英文标准名称】:Aerospaceseries-Cables,electrical,aircraftuse;Testmethods-Part604:Resistancetodryarcpropagation;GermanandEnglishversionEN3475-604:2002
【原文标准名称】:航空航天系列.航空用电缆.试验方法.第604部分:抗干电弧传导;德文和英文版本EN3475-604:2002
【标准号】:EN3475-604-2002
【标准状态】:现行
【国别】:
【发布日期】:2002-12
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:电弧;航空航天运输;航空运输;试验;电缆;规范(验收);飞行器;电线;导电体;航天运输;电的;多语种的;耐电弧
【英文主题词】:Aerospacetransport;Airtransport;Aircraft;Arcresistance;Cables;Electricarcs;Electriccables;Electricconductors;Electrical;Electricalcords;Multilingual;Spacetransport;Specification(approval);Testing
【摘要】:
【中国标准分类号】:V25
【国际标准分类号】:49_060
【页数】:21P.;A4
【正文语种】:英语
【英文标准名称】:Measurementofliquidflowinclosedconduitsbyweighingmethod;Errata
【原文标准名称】:在封闭导管中用称重法测量液体流量.正误表
【标准号】:ASMEMFC-9MErrata-1989
【标准状态】:现行
【国别】:美国
【发布日期】:1989
【实施或试行日期】:
【发布单位】:美国机械工程师协会(US-ASME)
【起草单位】:ASME
【标准类型】:()
【标准水平】:()
【中文主题词】:计算方法;管道;称重方法;液体;流量测量;流量率;流量测量技术
【英文主题词】:weighingmethods;liquids;flowmeasuringtechniques;flowrates;pipelines;flowmeasurements;methodsofcalculation
【摘要】:ThisStandardspecifiesamethodofliquidflowratemeasurementinclosedconduitsbymeasuringthemassofliquiddeliveredintoaweighingtankinaknowntimeinterval.Itdealsinparticularwiththemeasuringapparatus,procedure,andmethodforcalculatingtheflowrateandtheuncertaintiesassociatedwiththemeasurement.Themethoddescribedmaybeappliedtoanyliquid,providedthatitsvaporpressureissuchthatanyescapeofliquidfromtheweighingtankbyvaporizationisnotsufficienttoaffecttherequiredmeasurementaccuracy.ClosedweighingtanksandtheirapplicationtotheflowmeasurementofliquidsofhighvaporpressurearenotconsideredinthisStandard.ThisStandardconsidersonlythemeasurementtechniquesanddoesnotaddressanypossiblehazardsinvolvedinhandlingtheliquidinvolved.Theoretically,thereisnolimittotheapplicationofthismethod,whichisusedgenerallyinfixedlaboratoryinstallationsonly.However,foreconomicreasons,typicalhydrauliclaboratoriesusingthismethodcanproduceaccurateflowratesof500kg/s(3300lbm/sec)orless.Owingtoitshighpotentialaccuracy,thismethodisoftenusedasaprimarymethodforcalibrationofothermethodsordevicesformassflowratemeasurementorvolumetricflowratemeasurement,providedthatthedensityoftheliquidisknownaccurately.Itmustbeensuredthatthepipelineisrunningfullwithnoairorvaporpocketspresentinthemeasuringsection.
【中国标准分类号】:A52
【国际标准分类号】:17_120_10
【页数】:1P.;A4
【正文语种】:英语