GB/T 10231-1988 保护继电器的结构型式与基本尺寸系列
作者:标准资料网 时间:2024-05-16 15:22:11 浏览:8108
来源:标准资料网
基本信息
| 标准名称： | 保护继电器的结构型式与基本尺寸系列 |
| 英文名称： | Structural type and series of basic dimensions of protective relay |
| 中标分类： |
|
| 发布日期： | 1988-12-01 |
| 实施日期： | 1990-01-01 |
| 首发日期： | |
| 作废日期： | |
| 起草单位： | 许昌继电器研究所 |
| 出版日期： | |
| 页数： | 5页 |
适用范围
本标准规定了保护继电器的结构型式，包括凸出式和嵌入式两种；还规定了基本尺寸系列，所标注的尺寸为理论尺寸，公差和配合间隙根据有关结构标准确定。本标准列入了系列1和系列2两部分结构型式与基本尺寸系列。系列1尺寸为优选尺寸系列。本标准适用于电力系统保护继电器及其装置。本标准仅适用于新设计的产品壳体结构及尺寸。
前言
没有内容
目录
没有内容
引用标准
没有内容
所属分类：
【英文标准名称】:Termsforrailwayvehicleparts;containers,vessels,tanks;tankwagonswithaccessoriesformineralandchemicalmaterial
【原文标准名称】:铁路车辆部件术语.集装箱、容器、储罐.矿物和化学制品用带附件的储罐车
【标准号】:DIN25632-1-1987
【标准状态】:作废
【国别】:德国
【发布日期】:1987-01
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:定义;容器;词汇;矿物油;铁路货运车辆;槽;罐车;水箱;铁道车辆;货运集装箱;术语;铁路车辆零部件
【英文主题词】:railwayapplications;freightcontainers;mineraloils;tankwagons;tanks(containers);containers;railwaywagons;railwayvehicles;railways;terms;definitions;vocabulary;railwayvehiclecomponents;definiti
【摘要】:
【中国标准分类号】:A85;S30
【国际标准分类号】:01_040_45;45_060_20
【页数】:5P;A4
【正文语种】:德语
【英文标准名称】:StandardGuideforDevelopingAppropriateStatisticalApproachesforGround-WaterDetectionMonitoringPrograms
【原文标准名称】:地下水探测监测程序用开发适当的统计近似值的标准指南
【标准号】:ASTMD6312-1998(2005)
【标准状态】:现行
【国别】:
【发布日期】:1998
【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】:D18.21
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:探测监测;预测限制;废弃物处理设施;控制图;统计学;地下水
【英文主题词】:controlcharts;detectionmonitoring;groundwater;predictionlimits;statistics;wastedisposalfacilities
【摘要】:Theprincipaluseofthisguideisinground-waterdetectionmonitoringofhazardousandmunicipalsolidwastedisposalfacilities.ThereisconsiderablevariabilityinthewayinwhichexistingGuideUSEPAregulationandguidanceareinterpretedandpracticed.Often,muchofcurrentpracticeleadstostatisticaldecisionrulesthatleadtoexcessivefalsepositiveorfalsenegativerates,orboth.Thesignificanceofthisproposedguideisthatitjointlyminimizesfalsepositiveandfalsenegativeratesatnominallevelswithoutsacrificingoneerrorforanother(whilemaintainingacceptablestatisticalpowertodetectactualimpactstoground-waterquality(4)).Usingthisguide,anowner/operatororregulatoryagencyshouldbeabletodevelopastatisticaldetectionmonitoringprogramthatwillnotfalselydetectcontaminationwhenitisabsentandwillnotfailtodetectcontaminationwhenitispresent.1.1Thisguidecoversthecontextofground-watermonitoringatwastedisposalfacilities,regulationshaverequiredstatisticalmethodsasthebasisforinvestigatingpotentialenvironmentalimpactduetowastedisposalfacilityoperation.Owner/operatorsmustperformastatisticalanalysisonaquarterlyorsemiannualbasis.Astatisticaltestisperformedoneachofmanyconstituents(forexample,10to50ormore)foreachofmanywells(5to100ormore).Theresultispotentiallyhundreds,andinsomecases,athousandormorestatisticalcomparisonsperformedoneachmonitoringevent.Evenifthefalsepositiverateforasingletestissmall(forexample,1%),thepossibilityoffailingatleastonetestonanymonitoringeventisvirtuallyguaranteed.Thisassumesyouhavedonethecorrectstatisticinthefirstplace.1.2Thisguideisintendedtoassistregulatorsandindustryindevelopingstatisticallypowerfulgound-watermonitoringprogramsforwastedisposalfacilities.Thepurposeofthesemethodsistodetectapotentialgound-waterimpactfromthefacilityattheearliestpossibletimewhilesimultaneouslyminimizingtheprobabilityoffalselyconcludingthatthefacilityhasimpactedgroundwaterwhenithasnot.1.3Whenappliedinappropriatelyexistingregulationandguidanceonstatisticalapproachestoground-watermonitoringoftensufferfromalackofstatisticalclarityandoftenimplementmethodsthatwilleitherfailtodetectcontaminationwhenitispresent(afalsenegativeresult)orconcludethatthefacilityhasimpactedgoundwaterwhenithasnot(afalsepositive).Historicalapproachestothisproblemhaveoftensacrificedonetypeoferrortomaintaincontrolovertheother.Forexample,someregulatoryapproacheserronthesideofconservatism,keepingfalsenegativeratesnearzerowhilefaslepositiveratesapproach100%.1.4Thepurposeofthisguideistoillustrateastatisticalground-watermonitoringstrategythatminimizesbothfalsenegativeandfalsepositiverateswithoutsacrificingonefortheother.1.5Thisguideisapplicabletostatisticalaspectsofground-waterdetectionmonitoringforhazardousandmunicipalsolidwastedisposalfacilities.1.6Itisofcriticalimportancetorealizethatonthebasisofastatisticalanalysisalone,itcanneverbeconcludedthatawastedisposalfacilityhasimpactedgroundwater.Astatisticallysignificantexceedanceoverbackgroundlevelsindicatesthatthenewmeasurementinaparticularmonitoringwellforaparticularconstituentisinconsistentwithchanceexpectationsbasedontheavailablesampleofbackgroundmeasurements.1.7Similarly,statisticalmethodscanneverovercomelimitationsofagroundwatermonitoringnetworkthatmightariseduetopoorsitecharacterization,wellinstallationandlocation,sampling,oranalysis.1.8Itisnotedthatwhenjustified,intra-wellcomparisonsarege......
【中国标准分类号】:Z16
【国际标准分类号】:13_030_40
【页数】:14P.;A4
【正文语种】:
