ASTM D6106-1997(2004) 地下蓄水层术语建立的标准指南
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【英文标准名称】:StandardGuideforEstablishingtheNomenclatureofGround-WaterAquifers
【原文标准名称】:地下蓄水层术语建立的标准指南
【标准号】:ASTMD6106-1997(2004)
【标准状态】:现行
【国别】:
【发布日期】:1997
【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】:地下水;水文地质学;蓄水层术语;蓄水层系统;限制单元;地质名称;岩石地层学单元
【英文主题词】:aquifernomenclature;aquifersystems;confiningunits;geologicalnames;ground-water;hydrogeology;rock-stratigraphicunits
【摘要】:Anessentialrequirementofhydrogeologistsinevaluatingthehydraulicpropertiesofasegmentofearthmaterialsistodefineandmaphydrogeologicunits,aquifers,andconfiningunits,whicharedeterminedonthebasisofrelativepermea
【中国标准分类号】:D14
【国际标准分类号】:01_040_93;93_160
【页数】:17P.;A4
【正文语种】:
【英文标准名称】:StandardTestMethodsforVacuumCleanerHose--DurabilityandReliability(All-PlasticHose)
【原文标准名称】:真空吸尘器软管的耐用性及可靠性试验(全塑软管)
【标准号】:ASTMF595-1996
【标准状态】:作废
【国别】:美国
【发布日期】:1996
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:真空吸尘器;柔性管;最终制品;持久性;塑料;可靠度;试验
【英文主题词】:permanency;reliability;enduseproducts;plastics;testing;flexiblepipes;vacuumcleaners
【摘要】:
【中国标准分类号】:Y62
【国际标准分类号】:97_080
【页数】:
【正文语种】:英语
【英文标准名称】:OUTLINEOFINVESTIGATIONFORPOWERDISTRIBUTIONCENTERSFORCOMMUNICATIONSEQUIPMENTIssueNumber:3
【原文标准名称】:通信设备用配电中心调查大纲.发布编号:3
【标准号】:ULSUBJECT1801-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008-06-06
【实施或试行日期】:
【发布单位】:美国保险商实验所(US-UL)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:1.1.0Additionoftextto1.1:TherequirementsinthisOutlinearetobeusedasasupplementtotherequirementslocatedwithinIEC61204-7:LowVoltagePowerSupplies,D.C.Output–Part7,AnnexPS-E.ReferencedwithinIEC61204-7isthethirdeditionoftheStandardforSafetyofInformationTechnologyEquipment,UL60950/CSAC22.2No.60950-00.Therefore,thenumberingschemeoftheclausesandsubclauseslocatedinthisOutlinecorrespondtothosefoundinUL60950/CSAC22.2No.60950-00.TherequirementsofUL60950/CSAC22.2No.60950-00areapplicablewiththeexceptionsnotedintheOutlineas2replacements2,2additions2,and2deletions2.TherequirementsfromIEC61204-7:LowVoltagePowerSupplies,D.C.Output–Part7,AnnexPS-E,shallapplywheredetailsarenotspecificallyprovidedinthisOutline.WhereaparticularsubclauseofIEC61204-7andUL60950/CSAC22.2No.60950-00isnotmentionedinthisoutline,thatsubclauseshallapply.Therelevantrequirement,testspecification,ornoteinUL60950/CSAC22.2No.60950-00shouldbeadaptedaccordinglywherethisOutlinestates2addition,22modification,2or2replacement,2.TheblockdiagraminFigure1Adisplays,insinglelineform,atypicald.c.powerdistributionsystem.Therectifiersprovidethepowerforthetelecommunicationsloadequipmentandmaintainthecharge(float)inthebatteries.Thebatteriesand/orthebackupgeneratorprovidetheenergywheninterruptionofcommerciala.c.poweroccurs.Thed.c.distributionsystemistoprovideenergytothetelecommunicationsloadequipmentwithminimalpowerlossesregardlessofthestateofcommerciala.c.power.Thed.c.powerdistributionsystemtransmitstheenergyfromtherectifiersorbatteriestothetelecommunicationsloadequipment.Overcurrentprotectiondevicesmaybeprovidedwithinthedistributionamongtherectifieroutputs,batteries,ortheinputtotheprimarydistributionsystem.Therigidbusbar,whichistypicallyused,isdesignedforaminimumvoltagedropandisadistributionstructurecapableofwithstandingfaultcurrents.Thedistributionsystemmaybedividedintotheprimaryandsecondarydistribution.Theprimarydistributionsystemcontainstheovercurrentprotectiondevices,thewire,andcabletoconnecttheoutputvoltagefromthebatteriesandrectifierstothesecondarydistributionsystem.Theovercurrentprotectiondevicesprovidethefaultandisolationprotectionwhenashortoroverloadconditionoccursonthewireorcablebetweentheprimaryandsecondarydistributionsystems.Thesecondarydistributionsystemcontainstheovercurrentprotectiondevices(suchasfusesandcircuitbreakers),thewire,andcabletoconnecttheoutputvoltagefromtherectifiersandtheprimarydistributionsystemtothetelecommunicationsloadequipment.Theovercurrentprotectiondevicesinthesecondarydistributionsystemareintendedtoprotectthewireandcablefromfaultsinthesecondarydistributionsystem.Equipmentfaultsarenormallyprotectedbyovercurrentprotectiondeviceseitherwithinthetelecommunicationsloadequipmentoftheframes,whichcontainthetelecommunicationsloadequipment,orwithintheD.C.SECONDARYDISTRIBUTIONcircuit.
【中国标准分类号】:M41
【国际标准分类号】:
【页数】:12P.;A4
【正文语种】:英语
