DIN 28004-3-1988 工艺装置流程图.图示符号
作者:标准资料网 时间:2024-05-17 05:29:08 浏览:9837
来源:标准资料网
【英文标准名称】:Flowsheetsanddiagramsofprocessplants;graphicalsymbols
【原文标准名称】:工艺装置流程图.图示符号
【标准号】:DIN28004-3-1988
【标准状态】:作废
【国别】:德国
【发布日期】:1988-05
【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】:图形符号;工艺工程;化学工程;符号;流程图
【英文主题词】:graphicsymbols;symbols;flowcharts;chemicalengineering;processengineering;flowdiagrams
【摘要】:
【中国标准分类号】:G01
【国际标准分类号】:01_100_30
【页数】:27P;A4
【正文语种】:德语
【英文标准名称】:Electricductheaters
【原文标准名称】:电管道加热器
【标准号】:UL1996-2004
【标准状态】:作废
【国别】:美国
【发布日期】:2004-11-12
【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】:UL
【标准类型】:()
【标准水平】:()
【中文主题词】:加热器;空调系统;继电器;通风管道系统;遥控系统;控制装置;通气道;空气加热系统
【英文主题词】:Airductingsystems;Airducts;Airheatingsystems;Air-conditioningsystems;Controldevices;Heaters;Relays;Remotecontrolsystems
【摘要】:Theserequirementscoverfixedelectricductheaters,andremotecontrolassembliesforsuchequipment,ratedat600voltsorlesstobeemployedinordinarylocationsinaccordancewiththeNationalElectricalCode,ANSI/NFPA70.Theserequirementsdonotcoverfan-coilunits,centralheatingfurnaces,panelorcabletyperadiantheatingequipment,electricboilers,baseboardheaters,airheaters,noranyotherelectricheatingequipmentorapplianceswhicharecoveredinorasapartofseparate,individualrequirements.Ductheatersintendedforuseinahazardouslocationarejudgedonthebasisofitscompliancewiththerequirementsinthisstandard,togetherwiththerequirementsforhazardouslocationequipmentincludedinotherapplicablestandards.Ductheatersdesignedtobeconnectedtoair-ductsystemsareintendedforinstallationinaccordancewiththeStandardfortheInstallationofAirConditioningandVentilatingSystems,NFPA90A,andtheStandardfortheInstallationofWarmAirHeatingandAirConditioningSystems,NFPA90B.Theserequirementsapplytorelaysandotherauxiliarycontroldevicesthatmaybeprovidedaspartofaductheatertomakeitusablewithotherheatingorcoolingequipment,andareintendedtotakeintoaccounttheeffectsofoperatingtheductheaterinconjunctionwithorinproximitytosuchequipment.Aductheaterisaself-containedheaterdesignedtobeinstalledinthefieldintheairstreamofaductedsystem,externaltotheair-movingunit.Itisdesignedtobeinstalledinaductwhereanadequateflowofairfromaseparate,interlockedfanorblowersystemisprovided.Suchaheatermaybelocatedinthemainsupplyductofanairheatingsystem,orinoneofthebranchducts.Twoormoreductheatersmaybeinstalledinagroup(inproximitytooneanotherintheduct)iftestsindicateacceptableresultswhentheheatersareinstalledinaccordancewiththemanufacturer'sinstructions.Aductheaterintendedtobeemployedinconjunctionwithanothersourceofheatisjudgedonthebasisofitscompliancewiththerequirementsinthisstandard,andfurtherexaminationandteststodeterminewhetherornotthecombinationisacceptable.
【中国标准分类号】:K61
【国际标准分类号】:91_140_30
【页数】:
【正文语种】:英语