ANSI/ASHRAE 15f-2009 制冷系统安全性标准
时间:2024-05-16 06:40:20 来源: 标准资料网 作者：标准资料网 阅读：8229
【英文标准名称】:SafetyStandardforRefrigerationSystems
【原文标准名称】:制冷系统安全性标准
【标准号】:ANSI/ASHRAE15f-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:空调;设备安全性;方法学;容积式压缩机;制冷;减压阀;建筑物服务设施;试验方法
【英文主题词】:Airconditioning;Equipmentsafety;Methodologies;Positive-displacementcompressors;Refrigeration;Reliefvalves;Serviceinstallationsinbuildings;Testmethods
【摘要】:Carbondioxide(R744)isoftenusedinthelow-tempsideofcascadesystems.Duetothepressure-temperaturerelationshipofR744,itwouldbecostprohibitiveandunnecessarytomeetallthedesignpressurerequirementsofSection9.2forrefrigerationsystemsusingR744,sincetherequiredstandbypressuresforR744aremuchhigherthanthoseexperiencedduringnormaloperation.TheproposedchangeallowsR744asasecondarycoolantorrefrigerantincertainsituations,permittinglimitedreleasestotheatmosphereduringunusualevents,suchasanextendedpowerfailurewithcoincidentheatgainsthatraisesystempressures.
【中国标准分类号】:P49
【国际标准分类号】:91_140_30
【页数】:
【正文语种】:英语
【英文标准名称】:Officefurniture-Self-supportingenergizeddevicesfortheheightadjustmentofofficeworkchairs-Safetyrequirements,testing
【原文标准名称】:办公家具.调节办公座椅高度用自承重增能装置.安全要求和检验
【标准号】:DIN4550-2004
【标准状态】:现行
【国别】:德国
【发布日期】:2004-12
【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】:安全要求;规范(验收);安全;钢;安全工程;检验;功能特性;办公家具;设备安全;试验;座椅;家具;适用性;办公室设备;定义;高度可调的;旋转座椅;高度调节;扶手椅;可调家具;转椅;作标记;支撑件;调节装置
【英文主题词】:
【摘要】:ThisStandarddefinesselfsupportingenergizeddevicesfortheheightadjustment(e.g.gasspringormechanicalspring)ofswivelchairsandarmchairs.
【中国标准分类号】:Y81
【国际标准分类号】:97_140
【页数】:9P;A4
【正文语种】:德语
【英文标准名称】:Powerelectroniccapacitors-General
【原文标准名称】:补偿电容器.第1部分:总则
【标准号】:BSEN61071-1-1997
【标准状态】:作废
【国别】:英国
【发布日期】:1997-10-15
【实施或试行日期】:1997-10-15
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:电容器;外观检查(试验);电子设备及元件;过电压;作标记;热稳定性;性能试验;工作环境;电力电容器;电容测量;放电;装配;机械试验;试验条件;频率;选择;定型试验;电气试验;环境试验;额定电压;热试验;防护电气设备
【英文主题词】:
【摘要】:ThispartofIEC1071appliestocapacitorsintendedtobeusedinpowerelectronicequip-ment,particularlyfor:-semiconductorswitchingandprotection,-filteringandenergystorage.Theratedvoltageofcapacitorscoveredbythispartislimitedto10000V.TheoperatingfrequencyofthesystemsinwhichthesecapacitorsareusedIsusuallybelow1000Hz,whilethepulsefrequenciesmaygouptoseveral1000Hzinsomecasesbeyond10000Hz.Itdistinguishesbetweena.c.capacitorsandd.c.capacitors.Theyareconsideredascomponentsmountedinenclosures.Capacitorswithinthescopeofthispartincludethosecapacitorsintendedforuseinpowerelectronicequipmentsuchas:SemiconductorconvertersaccordingtoIEC146orIEC411.NOTES1Thefollowingareexcludedfromthispart:·Capacitorsforinductionheat-generatingplantsoperatingatfrequenciesbetween40and24000Hz(IEC110).·Capacitorsformotorapplicationsandthelike(IEC252).·Capacitorstobeusedincircuitsforblockingoneormoreharmonicsinpowersupplynetworks.·Smalla.c.capacitorsasusedforfluorescentanddischargelamps(IEC566).·Capacitorsforsuppressionofradiointerference(IEC384-14).·Shuntcapacitorsfora.c.powersystemshavingaratedvoltageabove1000V((EC871-1,2).·Shuntpowercapacitorsoftheself-healingtypefora.c.systemshavingaratedvoltageuptoandIncluding1000V(IEC831-1,2).·Shuntpowercapacitorsofthenonself-healingtypefora.c.systemshavingaratedvoltageuptoandincluding1000V(IEC031-1,2).·Electroniccapacitorsnotusedinpowercircuits,(IEC80and166).·Seriescapacitorsforpowersystems(IEC143).·Couplingcapacitorsandcapacitordividers(IEC358).·Capacitorsforapplicationsrequiringenergystorage/highcurrentdischargesuchasphotocopiersandlasers.·Capacitorsformicrowaveovens.2AdditionalrequirementsforcapacitorstobeprotectedbyinternalfusesandInternaldisconnectingdevices,aswellasrequirementsforself-nealingtests,endurancetestsanddestnictiontestsareunderconsideration.3Thisstandardcoversanextremelywiderangeofcapacitortechnologiesfornumerousapplications.ExamplesaregivenInsection6.Theobjectofthisstandardis:a)toformulateuniformrulesregardingperformances,testingandrating;b)toformulatespecificsafetyrules;c)toprovideaguideforinstallationandoperation.
【中国标准分类号】:K42
【国际标准分类号】:31_060_70
【页数】:40P;A4
【正文语种】:英语