ASTM B497-2000(2006) 闭合跳火触点上电压降的测量的标准规范

作者:标准资料网 时间:2024-05-18 00:33:32  浏览:8320   来源:标准资料网

【英文标准名称】:StandardGuideforMeasuringVoltageDroponClosedArcingContacts
【原文标准名称】:闭合跳火触点上电压降的测量的标准规范
【标准号】:ASTMB497-2000(2006)
【标准状态】:现行
【国别】:
【发布日期】:2000
【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】:B02.11
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:电压降;测量技术
【英文主题词】:closedarcingcontacts;voltagedrop
【摘要】:Thisguidecoversthefactorstobecontrolled,precautionsanddocumentationnecessarytomeasureandreportthevoltagedropacrossclosedcurrent-carryingcontacts.Thevoltagedropisanindicationoftheefficiencyofthecontactinterfacesincarryingaspecifiedcurrent.Thisefficiencycanbeadverselyeffectedbyanyinsulatingareaswithinthecontactinterface.Circuitswhichinvolvesubstantialcurrentandlowindependencecanbeinfluencedbythiscontactproperty.1.1Thisguidedescribesrecommendedprocedurestoaccuratelymeasurevoltagedropacrosscurrentcarryingcontactsandtheparameterstobedocumentedinordertoeffectivelyrecordtheresults.Suchcontactsnormallycarrycurrentgreaterthan1amp.Theapplicabilityoftheseprocedurestocontactscarryingsmallercurrentsshouldbeevaluatedpriortoapplicationtosuchdevices.ContactscarryingsmallcurrentmayalsobeevaluatedusingTestMethodB539tomeasurecontactresistance.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.ItistheresponsibilityoftheuserofthisstandardtobecomefamiliarwithallhazardsincludingthoseidentifiedintheappropriateMaterialSafetyDataSheet(MSDS)forthisproduct/materialasprovidedbythemanufacturer,toestablishappropriatesafetyandhealthpractices,anddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecificprecautionarystatements,seeSection6.
【中国标准分类号】:K04
【国际标准分类号】:17_220_20
【页数】:3P.;A4
【正文语种】: