ASTM B8-2004 硬、中等硬或软的同心绞捻铜导线的标准规范

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【英文标准名称】:StandardSpecificationforConcentric-Lay-StrandedCopperConductors,Hard,Medium-Hard,orSoft
【原文标准名称】:硬、中等硬或软的同心绞捻铜导线的标准规范
【标准号】:ASTMB8-2004
【标准状态】:现行
【国别】:
【发布日期】:2004
【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】:B01.04
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:铜;电气工程;绞线;导电体
【英文主题词】:concentric-lay-strandedcopperconductors;concentric-lay-strandedhard;copperconductors;copperconductorsforelectricalpurposes;medium-hard;orsoftcopperconductors
【摘要】:1.1Thisspecificationcoversbareconcentric-lay-strandedconductorsmadefromroundcopperwires,eitheruncoatedorcoatedwithtin,lead,orleadalloyforgeneraluseforelectricalpurposes.Theseconductorsshallbeconstructedwithacentralcoresurroundedbyoneormorelayersofhelicallylaidwires.Note1Thisspecificationalsopermitsconductorsforuseascoveredorinsulatedelectricalconductors.Note2Sealedconductors,thatareintendedtopreventlongitudinalwaterpropagationandarefurthercovered/insulated,arealsopermittedwithintheguidelinesofthisspecification.1.2Forthepurposesofthisspecification,conductorsareclassifiedasfollows(ExplanatoryNOTE1andNOTE2):1.2.1ClassAAForbareconductorsusuallyusedinoverheadlines.1.2.2ClassAForconductorstobecoveredwithweather-resistant(weather-proof),slow-burningmaterials,andforbareconductorswheregreaterflexibilitythanisaffordedbyClassAAisrequired.1.2.3ClassBForconductorstobeinsulatedwithvariousmaterialssuchasrubber,paper,varnishedcloth,andsoforth,andfortheconductorsindicatedunderClassAwheregreaterflexibilityisrequired.1.2.4ClassCandClassDForconductorswheregreaterflexibilityisrequiredthanisprovidedbyClassBconductors.1.3TheSIvaluesfordensityareregardedasthestandard.Forallotherproperties,theinch-poundvaluesaretoberegardedasstandardandtheSIunitsmaybeapproximate.
【中国标准分类号】:K11
【国际标准分类号】:29_060_20
【页数】:7P.;A4
【正文语种】: