【英文标准名称】:Magneticmaterials-Part4:Methodsofmeasurementofd.c.magneticpropertiesofmagneticallysoftmaterials
【原文标准名称】:磁性材料.第4部分:软磁材料的直流磁性的测量方法
【标准号】:IEC60404-4Edition2.2-2008
【标准状态】:现行
【国别】:国际
【发布日期】:2008-11
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/TC68
【标准类型】:()
【标准水平】:()
【中文主题词】:恒定场;直流测量;电气工程;实验室间试验;铁;磁性合金;磁场强度;磁性材料;磁性能;测量技术;渗透计;性能;环形试验;软磁的;钢
【英文主题词】:Constantfields;Direct-currentmeasurement;Electricalengineering;Inter-laboratorytests;Iron;Magneticalloys;Magneticfieldstrength;Magneticmaterials;Magneticproperties;Measuringtechniques;Permeameters;Properties;Ringtests;Softmagnetic;Steels
【摘要】:ThispartofIEC60404specifiesthemethodsofmeasuringthed.c.magneticpropertiesofmagneticallysoftmaterialsinaclosedmagneticcircuitusingeithertheringorthepermea-metermethods.Theringmethodissuitableforusewithlaminatedorsolidringspecimensaswellasringspecimensproducedbysintering.Twomethodsareused:a)theringmethod,particularlyformagneticfieldstrengthsofupto10kA/m;b)thepermeametermethodformagneticfieldstrengthsintherange1kA/mto200kA/m.NOTEThemeasurementofcoercivityinanopenmagneticcircuitisspecifiedinIEC60404-7.
【中国标准分类号】:L19
【国际标准分类号】:17_220_20;29_030
【页数】:63P.;A4
【正文语种】:


【英文标准名称】:Districtheatingpipes-Preinsulatedbondedpipesystemsfordirectlyburiedhotwaternetworks-Fittingassembliesofsteelservicepipes,polyurethanethermalinsulationandoutercasingofpolyethylene
【原文标准名称】:区域加热管.直埋式热水网用预绝缘连接管系统.聚氨酯绝热和聚乙烯外壳钢制给水管的成套配件
【标准号】:BSEN448-2009
【标准状态】:现行
【国别】:英国
【发布日期】:2009-03-31
【实施或试行日期】:2009-03-31
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:装箱;复合套管;合成管;定义;尺寸;远距离供热;区域供暖;配件;加热工程;热水供应网;不渗透性;绝缘件;套管;鼓箍;长距离加热系统;作标记;管道配件;管道系统;三通管;管道;远距离加热用管道;管道工程系统;聚乙烯;聚氨酯;异径接头;硬质泡沫塑料;片段;规范(验收);钢管;监督(认可);测试;绝热;密封性;地下;地下装置;温水;水管系统;水管;焊接工艺;焊接工作
【英文主题词】:Casing;Compositejacketpipes;Compositetubes;Definition;Definitions;Dimensions;Distantheating;Districtheating;Fittings;Heatingengineering;Hotwaternetworks;Impermeability;Insulations;Jackettubes;Laggingofadrum;Longdistanceheatingsystems;Marking;Pipefittings;Pipesystem;Pipetees;Pipelines;Pipesforlongdistanceheating;Pipeworksystems;Polyethylene;Polyurethane;Reducers;Rigidfoams;Segment;Specification(approval);Steelpipes;Surveillance(approval);Testing;Thermalinsulation;Tightness;Underground;Undergroundinstallations;Warmwater;Waterpipesystems;Waterpipes;Weldingprocesses;Weldingwork
【摘要】:ThisEuropeanStandardspecifiesrequirementsandtestmethodsforfittingsofprefabricatedthermallyinsulatedpipe-in-pipeassembliescomprisingasteelservicefittingfromDN20toDN1200,rigidpolyurethanefoaminsulationandanoutercasingofpolyethyleneforuseindirectlyburiedhotwaternetworkswithpreinsulatedpipeassembliesinaccordancewithEN253.ThisEuropeanStandardcoversthefollowingfittings:bends,T-pieces,reducers,singleusecompensatorsandanchors.ThisEuropeanStandardappliesonlytoinsulatedfittingassembliesandsingleusecompensatorsforcontinuousoperationwithhotwateratvarioustemperaturesinaccordancewithEN253:2009,Clause1.ThisEuropeanStandardappliestofittingassemblieswithaminimumdesignpressureof16bar(overpressure)complyingwithEN13941.GuidelinesforqualityinspectionaregiveninAnnexAofthisEuropeanStandard.ProceduresforPE-weldingaregiveninAnnexBofthisEuropeanStandard.NOTEThisEuropeanStandarddoesnotincluderulesforcalculationofloadsandstresses.
【中国标准分类号】:Q83
【国际标准分类号】:23_040_40
【页数】:38P.;A4
【正文语种】:英语