ASTM D 6919-2003 用离子色谱法测定水及废水中溶解的碱及碱土阳离子及铵的标准试验方法

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【英文标准名称】:Uninterruptiblepowersystems(UPS)-Part3:Methodofspecifyingtheperformanceandtestrequirements
【原文标准名称】:不间断电源系统(UPS)第3部分:规定性能的方法和试验要求
【标准号】:IEC62040-3-1999
【标准状态】:作废
【国别】:国际
【发布日期】:1999-03
【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/SC22B
【标准类型】:()
【标准水平】:()
【中文主题词】:供应;连续的;蓄电池供电;可不中断的;连续;电驱动装置;使用特性;存储设备;使用条件;测量要求;电能;电力系统;定义;电气工程;直流电流;性能;;;特性;交流电流;电子设备及元件;检验;规范(验收);工作性能;效率;试验;质量
【英文主题词】:Accumulatordevices;Alternatingcurrent;Alternatingpowers;Batterieoperation;Continuous;Definitions;Directcurrent;Efficiency;Electricenergy;Electricpowersystems;Electricalengineering;Electrically-operateddevices;Electronicequipmentandcomponents;Inspection;Messages;Operatingconditions;Operatingproperties;Performance;Performanceinservice;Properties;Quality;Specification(approval);Supply;Testrequirements;Testing;Uninterruptable
【摘要】:Thisstandardappliestoelectronicindirecta.c.convertersystemswithelectricalenergystoragemeansinthed.c.link.Theprimaryfunctionoftheuninterruptiblepowersystem(UPS)coveredbythisstandardistoensurecontinuityofanalternatingpowersource.Theuninterruptiblepowersystemmayalsoservetoimprovethequalityofthepowersourcebykeepingitwithinspecifiedcharacteristics.Avarietyofuninterruptiblepowersystemshavebeendevelopedtomeetconsumers'requirementsforcontinuityandqualityofpowerfordifferenttypesofloadsoverawiderangeofpower,fromlessthan100Wtoseveralmegawatts.RefertoannexesAandBforinformationonsomeofthetypesavailable.Thisstandardappliestoelectronicuninterruptiblepowersystems(UPS):a)deliveringsingle-orthree-phasefixedfrequencya.c.outputvoltage;b)withenergystoragedeviceinthed.c.linkifnototherwisespecified;c)withratedvoltagenotexceeding1000Va.c.;d)movable,stationaryand/orfixedequipment.ThisstandardalsoincludesthemethodofspecifyingallpowerswitchesthatformintegralpartsofaUPSandareassociatedwithitsoutput.Includedareinterrupters,bypassswitches,isolatingswitches,loadtransferswitchesandtieswitches.TheseswitchesinteractwithotherfunctionalunitsoftheUPStomaintaincontinuityofloadpower.Thisstandarddoesnotrefertoconventionalmainsdistributionboards,rectifierinputswitchesord.c.switches(forexampleforbatteries,rectifieroutputorinverterinput,etc.),orUPSbasedonrotatingmachines.NOTE1-ThisstandardrecognizesthatthemajormarketusagewiththeUPSratingswithinitsscopeisinconjunctionwithinformationtechnologyequipment.Undercurrenttechnology,themajorityofUPSloadequipmentemployspowersupplieswhichpresentanon-linearloadtotheUPSandcanbetolerantofnon-sinusoidalvoltagewaveformsforalimitedtimeduration.UPSoutputratingsarespecifiedtobecompatiblewithnon-linearloadingandlinearloading,subjecttomanufacturers'declarationifdifferent.Referenceswithinthisstandardtolinearloadingareretainedfortestmethodreasons,orvalidationofmanufacturers'additionaldeclaration.NOTE2-ForuseofUPSwithanon-sinusoidaloutputvoltagewaveform,beyondthestored-energytimerecommendedinthisstandard,theagreementoftheloadequipmentmanufacturershouldbesought.NOTE3-ForUPSoutputfrequenciesotherthan50Hzor60Hz,performancespecificationissubjecttoagreementbetweenmanufacturerandpurchaser.ThisstandardisintendedtodefineacompleteuninterruptiblepowersystemintermsofitsperformanceandnotindividualUPSfunctionalunits.TheindividualUPSfunctionalunitsaredealtwithintheIECpublicationsreferredtointhebibliographygiveninannexI,whichapplyinsofarastheyarenotincontradictionwiththisstandard.
【中国标准分类号】:F20
【国际标准分类号】:29_160_40
【页数】:203P.;A4
【正文语种】:英语


【英文标准名称】:ASMEBoiler&PressureVesselCode-Section10:Fiber-ReinforcedPlasticPressureVessels;2006AddendaJuly1,2006
【原文标准名称】:ASME锅炉和压力容器规范.第10部分:纤维.增强塑料压力容器.补充件2006
【标准号】:ASMEBPVCSection10Addenda2006-2006
【标准状态】:作废
【国别】:美国
【发布日期】:2006-07
【实施或试行日期】:
【发布单位】:美国机械工程师协会(ASME)
【起草单位】:ASME
【标准类型】:()
【标准水平】:()
【中文主题词】:代码;合成纤维材料;设计;制作;纤维增强的;玻璃纤维增强的;玻璃纤维增强塑料;检验;制造;材料;材料规范;浇铸;塑料;压力容器;质量保证;增强的材料;增强塑料;安全工程;安全要求;监督(认可);容器;焊接
【英文主题词】:
【摘要】:
【中国标准分类号】:J74
【国际标准分类号】:23_020_30;83_120
【页数】:
【正文语种】:英语