【英文标准名称】:Markingofelectricalequipmentwithratingsrelatedtoelectricalsupply-Safetyrequirements
【原文标准名称】:电气设备电源额定值的标记安全要求
【标准号】:IEC61293-1994
【标准状态】:现行
【国别】:国际
【发布日期】:1994-06
【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/TC16
【标准类型】:()
【标准水平】:()
【中文主题词】:电力系统;电气工程;安全要求;规范(批准);电驱动装置;作标记
【英文主题词】:Applications;Dimensioning;Electricpowersystems;Electricalengineering;Electrically-operateddevices;Graphicsymbols;Marking;Ratings;Safety;Safetyrequirements;Specification(approval)
【摘要】:Establishesminimumrequirementsandgeneralrulesonmarkingelectricalequipmentwithratingsandothercharacteristicstoenabletheproperandsafeselectionandinstallationofelectricalequipmentrelatedtoanysupplyofelectricity.Theobjectis
【中国标准分类号】:K60
【国际标准分类号】:29_100_20
【页数】:21P.;A4
【正文语种】:英语


【英文标准名称】:Geometricalproductspecifications(GPS)-Inspectionbymeasurementofworkpiecesandmeasuringequipment-Part2:GuidancefortheestimationofuncertaintyinGPSmeasurement,incalibrationofmeasuringequipmentandinproductverification
【原文标准名称】:几何产品规范(GPS).工件和测量设备的测量检查.第2部分:几何产品规范测量中,测量设备校准中以及产品检验中不确定度评价指南
【标准号】:ISO14253-2-2011
【标准状态】:现行
【国别】:国际
【发布日期】:2011-04-15
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC213
【标准类型】:()
【标准水平】:()
【中文主题词】:评估;校准;定义(术语);尺寸测量;估计;产品几何技术规范;几何;几何产品规范(GPS);指导手册;测量;测量设备;测量不确定度;测量仪器;测量结果;测量技术;标准;产品规范;产品试验;产品;质量管理;规范(验收);测试;不确定性;验证;工件
【英文主题词】:Assessment;Calibration;Definitions;Dimensionalmeasurement;Estimation;Geometricalproductspecification;Geometry;GPS;Guidebooks;Measurement;Measuringequipment;Measuringincertainity;Measuringinstruments;Measuringresults;Measuringtechniques;Normal;Productspecifications;Producttests;Products;Qualitymanagement;Specification(approval);Testing;Uncertainties;Verification;Workpieces
【摘要】:ThispartofISO14253givesguidanceontheimplementationoftheconceptofthe“Guidetotheestimationofuncertaintyinmeasurement”(inshortGUM)tobeappliedinindustryforthecalibrationof(measurement)standardsandmeasuringequipmentinthefieldofGPSandthemeasurementofworkpieceGPScharacteristics.Theaimistopromotefullinformationonhowtoachieveuncertaintystatementsandprovidethebasisforinternationalcomparisonofmeasurementresultsandtheiruncertainties(relationshipbetweenpurchaserandsupplier).ThispartofISO14253isintendedtosupportISO14253-1.BothpartsarebeneficialtoalltechnicalfunctionsinacompanyintheinterpretationofGPSspecifications[i.e.tolerancesofworkpiececharacteristicsandvaluesofmaximumpermissibleerrors(MPEs)formetrologicalcharacteristicsofmeasuringequipment].ThispartofISO14253introducestheProcedureforUncertaintyMAnagement(PUMA),whichisapractical,iterativeprocedurebasedontheGUMforestimatinguncertaintyofmeasurementwithoutchangingthebasicconceptsoftheGUM.Itisintendedtobeusedgenerallyforestimatinguncertaintyofmeasurementandgivingstatementsofuncertaintyfor:?singlemeasurementresults;?thecomparisonoftwoormoremeasurementresults;?thecomparisonofmeasurementresults—fromoneormoreworkpiecesorpiecesofmeasurementequipment—withgivenspecifications[i.e.maximumpermissibleerrors(MPEs)forametrologicalcharacteristicofameasurementinstrumentormeasurementstandard,andtolerancelimitsforaworkpiececharacteristic,etc.],forprovingconformanceornon-conformancewiththespecification.Theiterativemethodisbasedbasicallyonanupperboundstrategy,i.e.overestimationoftheuncertaintyatalllevels,buttheiterationscontroltheamountofoverestimation.Intentionaloverestimation—andnotunderestimation—isnecessarytopreventwrongdecisionsbasedonmeasurementresults.Theamountofoverestimationiscontrolledbyeconomicalevaluationofthesituation.Theiterativemethodisatooltomaximizeprofitandminimizecostinthemetrologicalactivitiesofacompany.Theiterativemethod/procedureiseconomicallyself-adjustingandisalsoatooltochange/reduceexistinguncertaintyinmeasurementwiththeaimofreducingcostinmetrology(manufacture).Theiterativemethodmakesitpossibletocompromisebetweenrisk,effortandcostinuncertaintyestimationandbudgeting.
【中国标准分类号】:N13
【国际标准分类号】:17_040_01
【页数】:78P.;A4
【正文语种】:英语