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【英文标准名称】:Extrudedinsulatingtubing
【原文标准名称】:挤制绝缘管
【标准号】:UL224-2006
【标准状态】:现行
【国别】:美国
【发布日期】:2006-03-06
【实施或试行日期】:
【发布单位】:美国保险商实验所(US-UL)
【起草单位】:UL
【标准类型】:()
【标准水平】:()
【中文主题词】:弹性体;电绝缘材料;可挤压性;挤压的;绝缘材料;绝缘管;塑料;高聚物;规范(验收);试验设备;测试;热塑性聚合物;热固的;管道;布线
【英文主题词】:Elastomers;Electricalinsulatingmaterials;Extrudability;Extruded;Insulatingmaterials;Insulatingtubings;Plastics;Polymers;Specification(approval);Testequipment;Testing;Thermoplasticpolymers;Thermosetting;Tubing;Wiring
【摘要】:Scope:1.1ThisStandardspecifiestherequirementsforinsulatingtubingthatisusuallyroundincross-sectionandthatconsistsentirelyofextrudedcompoundswhosecharacteristicconstituentsarethermosetting,elastomeric,orthermoplasticpolymers(seeTable1formaterialsandratings).Theserequirementsalsocoverheat-shrinkableandcrosslinkedtubing.AproductforuseattemperaturesgreaterthanindicatedinTable1oradifferentpolymermaybeacceptableprovidedthata)itmeetstheperformancetestsinthisStandardforapolymerthatissimilar;andb)long-termheat-agingtestsareconductedascoveredinUL746BorC22.2No.0.17,usingelongationastheprimaryproperty.1.2Tubingisintendedforuseonlyinair-indryanddamplocations-aspartoftheinternalwiringofelectricaldevicesandappliancesinaccordancewiththeCanadianElectricalCode,Part1(CECode,Part1)andANSI/NFPA70,NationalElectricalCode(NEC).Itmaybeusedforinsulatingoneormoreinadequatelyinsulatedconductors,busbars,motorleads,transformerleads,terminallugs,orsmallassembliesofelectroniccomponents.Tubingisnotintendedforuseincontactwithsharpedges,corners,orprojections,orwheresubjecttotension,compression,orrepeatedflexing.Tubingisnotintendedforusewhereitisfeasibletoemployastandardinsulatedconductor(appliance-wiringmaterial)intendedspecificallyforthepurpose.1.3Theserequirementsdonotapplytofabrictubing,chemicallydilatedtubing,polymerictubingextrudedwithreinforcement,ortubingintendedonlyformechanicalprotection.1.4Theacceptabilityoftubinginanyparticulardeviceorappliancedependsuponitsacceptabilityforcontinueduseundertheconditionsthatprevailinactualservice.Accordingly,foraparticularapplication,itwillinsomecasesbenecessarytoemploytubinghavingfeaturesotherthanorinadditiontothosespecifiedintheserequirements.Forexample,tubingmayberequiredtohaveaheavierwallthicknessoraflatratherthanaroundcross-section;itmayberequiredtohaveinherentresistancetotheeffectsofimmersioninwater,oil,solvents,orotherliquids(ortheirvapors);itmayberequiredtobeusedinanenvironmentconducivetothedevelopmentoffungiandsimilarorganisms.
【中国标准分类号】:K15
【国际标准分类号】:29_035_20
【页数】:
【正文语种】:英语