EN 60044-7-2000 互感器.第7部分:电子电压互感器
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来源:标准资料网
【英文标准名称】:Instrumenttransformers-Part7:Electronicvoltagetransformers(IEC60044-7:1999);GermanversionEN60444-7:2000
【原文标准名称】:互感器.第7部分:电子电压互感器
【标准号】:EN60044-7-2000
【标准状态】:现行
【国别】:
【发布日期】:2000-11
【实施或试行日期】:2000-11-01
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:保护电流;定义;电流互感器;电学测量仪表;规范(验收);保护设备;测量仪器;测量技术;故障电流;试验;绝缘;电气工程;缺陷与故障;变压器;安全工程;电压互感器;仪表用变压器;额定值;标准值;电子测量装置;电流强度
【英文主题词】:Currentrates;Currenttransformers;Defects;Definition;Definitions;Electricalengineering;Electricalmeasuringinstruments;Electronicmeasuringdevices;Faultcurrents;Guardcurrents;Instrumenttransformers;Insulations;Measuringinstruments;Measuringtechniques;Potentialtransformers;Protectiondevices;Ratings;Safetyengineering;Specification(approval);Standardvalues;Testing;Transformers
【摘要】:
【中国标准分类号】:L17
【国际标准分类号】:17_220_20
【页数】:59P.;A4
【正文语种】:英语
【英文标准名称】:StandardGuideforMoistureConditioningofWoodandWood-BaseMaterials
【原文标准名称】:木材和木基材料湿度的调节的标准指南
【标准号】:ASTMD4933-1999(2004)
【标准状态】:现行
【国别】:
【发布日期】:1999
【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】:D07.01
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:分析;导则;潮气;木材
【英文主题词】:equilibriummoisturecontent;moistureconditioning;moisturecontent;wood;wood-basedmaterials
【摘要】:Manyphysicalandmechanicalpropertiesofwoodandwood-basedmaterialschangeinresponsetotheenvironmentalequilibriummoisturecontent,andanycomparisonofthesepropertiesmusttakemoisturecontentintoaccount.Aconsistentbaseforcomparisonamongdifferenttestsamplesanddifferentlaboratoriesisnecessary.Shrinkageanddimensionalchangeinparticulararedependentonmoisturecontent,andtestsinvolvingtheirmeasurementmustbeconductedwithgoodequilibriummoisturecontentcontrol.Conditioningcanalsobeimportantinindustrialsettingswherethereareoptimummoisturecontentlevelsformanyproductsandprocesses,andconformancetotheselevelscanreducelossesinqualityandyield.1.1Thisguidecoversstandardproceduresforconditioningandequilibratingwoodandwood-basematerialstoconstantmoisturecontent.Theproceduresapplytosolidwood,wood-basefiberandparticulatematerialsandpanels,andwoodproductscontainingadhesives.Theyareintendedforuseinresearchanddevelopmentactivities,testinglaboratories,qualitycontrol,andforallotherclassesofproducersandusers.Thisguideincludesbackgroundmaterialontheimportanceofmoisturecontentcontrol,importantdefinitionsandtechnicaldata,possibletypesofapparatus,procedures,andtheimportanceofconditioningtime.Usersshouldrecognizethatthenecessarydegreeofprecisionandbiasvarieswiththeintentionsoftheusers.Someresearchandtesting,forexample,mightrequireveryclosecontrolofmoisturecontent,whereascontrolinanindustrialstoragefacilitymightnotrequiresuchclosecontrol.Thisguideoffersproceduresthatincludethesedifferentrequirements.1.2Thefollowingsafetyhazardscaveatpertainsonlytotheproceduresection,Section6,ofthisguide.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:B68
【国际标准分类号】:79_060_01
【页数】:8P.;A4
【正文语种】:
【英文标准名称】:Methodsforthepetrographicanalysisofbituminouscoalandanthracite;Part2:Methodofpreparingcoalsamples
【原文标准名称】:烟煤和无烟煤的岩相分析第2部分:煤样制备方法
【标准号】:ISO7404-2-1985
【标准状态】:作废
【国别】:国际
【发布日期】:1985-04
【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/TC27
【标准类型】:()
【标准水平】:()
【中文主题词】:固体燃料;显微分析;试验;烟煤;矿物和矿石;无烟煤;煤;试样制备;矿物;岩石
【英文主题词】:Anthracite;Bituminouscoal;Coal;Microscopicanalysis;Minerals;Petrography;Solidfuels;Specimenpreparation;Testing;Tests
【摘要】:ThispartofISO7404specifiesamethodforpreparingapolishedparticulateblockfromasampleodcrushedcoal,foranalysisbyreflectancemicroscopyusingwhiteligth.Itdoesnotapplytothepreparationofpolishedparticulateblocksforanalysisusingfluorescencemicroscopytechniquesnortothepreparationofpolishedorientatedlumpsofcoal.
【中国标准分类号】:D20
【国际标准分类号】:73_040
【页数】:8P;A4
【正文语种】:英语
