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ANSI/NETA MTS7.2.1-2001 干式变压器NETA维护测试规范:气冷600V及以下.小型(167kV单相,500kVA三相及更小)和气冷600V及以下.大型(大于167kV单相和500kVA三相)

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【英文标准名称】:NETAMaintenanceTestingSpecificationsforDry-TypeTransformers:Air-Cooled,600VoltsandBelow-Small(167kVSingle-Phase,500kVAThree-Phase,andSmaller)andAir-Cooled,AllAbove600Voltsand600VoltsandBelow-Large(Greaterthan167kVSin
【原文标准名称】:干式变压器NETA维护测试规范:气冷600V及以下.小型(167kV单相,500kVA三相及更小)和气冷600V及以下.大型(大于167kV单相和500kVA三相)
【标准号】:ANSI/NETAMTS7.2.1-2001
【标准状态】:作废
【国别】:美国
【发布日期】:2001
【实施或试行日期】:
【发布单位】:美国国家标准学会(ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Dry-typetransformers;Electricalengineering
【摘要】:
【中国标准分类号】:K31
【国际标准分类号】:29_180
【页数】:
【正文语种】:英语


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【英文标准名称】:StandardSpecificationforElectrodepositedCoatingsofTin-LeadAlloy(SolderPlate)
【原文标准名称】:锡铅合金的电解沉积镀层(焊接板)
【标准号】:ASTMB579-1973(2004)
【标准状态】:现行
【国别】:
【发布日期】:1973
【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】:B08.08.04
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:覆层;金属的;电解镀层;锡;金属;金属覆层;合金;铅
【英文主题词】:electrodepositedcoatings,tin-leadalloy(solderplate);solder,tin-leadalloy;tin-lead
【摘要】:1.1Thisspecificationcoverstherequirementsforelectrodepositedtin-leadcoatingsonfabricatedarticlesofiron,steel,copper,andcopperalloys,toprotectthemagainstcorrosion(Note1),toimproveandpreservesolderabilityoverlongperiodsofstorage,andtoimproveanti-gallingcharacteristics.Note1-Somecorrosionoftin-leadcoatingsmaybeexpectedinoutdoorexposure.Innormalindoorexposure,tin-leadisprotectiveoniron,copper,andcopperalloys.Corrosionmaybeexpectedatdiscontinuities(pitsorpores)inthecoating.Porositydecreasesasthethicknessisincreased.Aprimaryuseofthetin-leadcoating(solder)iswiththeprintedcircuitindustryasasolderablecoatingandasanetchmaskmaterial.1.2Thisspecificationappliestoelectrodepositedcoatingscontainingaminimumof50%andamaximumof70%tin.Thespecificationappliestomat,bright,andflow-brightenedtin-leadcoatings.Note2-Tin-leadplatingbathsarecomposedoftinandleadfluoboratesandofadditionagentstopromotestability.Thefinalappearancemaybeinfluencedbytheadditionofproprietarybrighteners.Withoutbrighteners,thecoatingsaremat;withbrighteners,theyaresemibrightorbright.Flow-brightenedcoatingsareobtainedbyheatingmatcoatingstoabovethemeltingpointoftin-leadforafewsecondsandthenquenching;palmoil,hydrogenatedoils,orfatsareusedasaheat-transfermediumatatemperatureof260+10176C(500+20176F),butothermethodsofheatingarealsoinuse.Themaximumthicknessforflow-brighteningisabout7.5[mu]m(0.3mil);thickercoatingstendtoreflowunevenly.Theshapeofthepartisalsoafactor;flatsurfacestendtoreflowmoreunevenlythanwiresorroundedshapes(Note3).Note3-Volatileimpuritiesintin-leadcoatingswillcausebubblingandfoamingduringflow-brighteningresultinginvoidsandroughness.Theimpuritiescanarisefromplatingsolutionadditionagentsandfromimproperrinsingandprocessing.1.3Thisspecificationdoesnotapplytosheet,strip,orwireintheunfabricatedformortothreadedarticleshavingbasicmajordiametersuptoandincluding19mm(0.75in.).
【中国标准分类号】:A29
【国际标准分类号】:25_220_40
【页数】:5P.;A4
【正文语种】:


【英文标准名称】:StandardTestMethodforComparisonoftheBrushDragofLatexPaints
【原文标准名称】:乳胶漆用刮路刷的比较用标准试验方法
【标准号】:ASTMD4958-1997
【标准状态】:现行
【国别】:美国
【发布日期】:1997
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:试验;刷子;胶乳;涂料
【英文主题词】:paints;testing;brushes;latices
【摘要】:
【中国标准分类号】:G50
【国际标准分类号】:87_040
【页数】:3P;A4
【正文语种】:英语