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IEC 61241-4-2001 有可燃性粉尘场所用电气设备第4部分:防护类型“pD”

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【英文标准名称】:Electricalapparatusforuseinthepresenceofcombustibledust-Part4:Typeofprotection"pD"
【原文标准名称】:有可燃性粉尘场所用电气设备第4部分:防护类型“pD”
【标准号】:IEC61241-4-2001
【标准状态】:现行
【国别】:国际
【发布日期】:2001-03
【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/SC31H
【标准类型】:()
【标准水平】:()
【中文主题词】:灰尘暴炸;分类系统;防爆;电气器具;电气工程;定义;试验
【英文主题词】:Air;Burninggases;Capsules;Classificationsystems;Combustible;Definitions;Degreesofprotection;Dust;Dustexplosions;Electricappliances;Electricenclosures;Electricalengineering;Electricalequipment;Electrically-operateddevices;Enclosure;Enclosures;Equipment;Explosionprotection;Explosions;Explosiveatmospheres;Flammableatmospheres;Gases;Ignition;Ignitionprotection;Inertgases;Marking;Materials;Methods;Openings;Pressure;Pressureoverload;Pressurizing;Protectivegases;Safety;Safetyprovisions;Structuring;Supply;Temperature;Temperature-riselimit;Testing;Typeofprotection;TypepDprotectedelectricalequipment;Verification;Warningsigns
【摘要】:ThispartofIEC61241,givesrequirementsonthedesign,construction,testingandmarkingofelectricalapparatusforuseincombustibledustatmospheresinwhichaprotectivegas(airorinertgas),maintainedatapressureabovethatoftheexternalatmosphere,isusedtopreventtheentryofdustwhichmightotherwiseleadtotheformationofacombustiblemixturewithinenclosureswhichdonotcontainasourceofcombustibledust.Thisstandardcontainsthespecificrequirementsforconstructionandtesting,includingprotectiverequirementsthatapplytoelectricalapparatuswithtypeofprotectionpressurization"pD"intendedforuseinpotentiallycombustibledustatmospheres.Thisstandardincludestherequirementsfortheconstructionoftheenclosureanditsassociatedcomponents,including,ifany,theinletandoutletductsfortheprotectivegas,andforthesafetyprovisionsanddevicesnecessarytoensurethatpressurizationisestablishedandmaintainedfortypeofprotectionpressurization"pD".Requirementsforpressurizedenclosureswithaninternalsourceofdustreleasearenotincludedinthisstandard.Thisstandarddoesnotcovertherequirementsforpressurizedroomswithorwithoutinternalsourcesofdustrelease.Thisstandarddoesnotapplytodustsofexplosiveswhichdonotrequireatmosphericoxygenforcombustionortopyrophoricsubstances.Thisstandarddoesnotcovercombinedgasanddusthazard.Thoserequirementsareunderconsideration.TherequirementscontainedinthisstandardaresupplementarytothoseinIEC61241-1-1.
【中国标准分类号】:K35
【国际标准分类号】:29_260_20
【页数】:22P;A4
【正文语种】:英语


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【英文标准名称】:Excavators,spreadersandauxiliaryequipmentinopencastlignitemines-Part4:Hoistingwinchbrakes
【原文标准名称】:褐煤露天矿挖掘机、推土机和辅助设备.第4部分:提升铰车用机械制动器
【标准号】:DIN22261-4-2007
【标准状态】:现行
【国别】:德国
【发布日期】:2007-12
【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】:附加装置;带式输送机;制动器;制动系统;斗轮挖掘机;电路;煤矿开采;设计;挖掘机;铰车;褐煤;力学;采掘;采掘设备;操作;露天开采;挖掘机输送带;规范(验收);摊铺机;绞车
【英文主题词】:Additionaldevices;Beltconveyors;Brakes;Brakingsystem;Bucketwheelexcavator;Circuits;Coalmining;Design;Excavators;Hoistingwinches;Lignite;Mechanic;Mining;Miningequipment;Operation;Quarrying;Shovelconveyor;Specification(approval);Spreaders;Winches
【摘要】:
【中国标准分类号】:D92
【国际标准分类号】:53_100;73_100_30
【页数】:6P;A4
【正文语种】:德语


【英文标准名称】:Spacesystems-Fluidcharacteristics,samplingandtestmethods-Part6:Monomethylhydrazinepropellant
【原文标准名称】:航天系统.流动特性、取样和试验方法.第6部分:一甲基肼推进剂
【标准号】:ISO15859-6-2004
【标准状态】:现行
【国别】:国际
【发布日期】:2004-06
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC20
【标准类型】:()
【标准水平】:()
【中文主题词】:定义;流体;航空航天运输;航天运输;特性;规范;分类系统;试验;杂质;甲基;燃料;化学成分;航空燃料;推进剂;联氨;航天器
【英文主题词】:Aerospacetransport;Aviationfuels;Chemicalcomposition;Classificationsystems;Definition;Definitions;Fluids;Fuels;Hydrazine;Impurities;Methyl;Propellants;Properties;Spacetransport;Spacecraft;Specification;Testing
【摘要】:ThispartofISO15859specifieslimitsforthecompositionofmonomethylhydrazineandestablishesthesamplingandtestrequirementsapplicablefortheverificationofthemonomethylhydrazine(MMH)composition.ThispartofISO15859isapplicabletomonomethylhydrazinepropellant,usedasafuelinpropellantsystemsofspacesystemsaswellasinbothflighthardwareandgroundfacilities,systemsandequipment,ofthefollowinggrades.—GradeA:98,0%pure,—GradeF:98,5%pure.ThispartofISO15859isapplicabletoinfluentsonlywithinthespecifiedlimitsherein.ThispartofISO15859isapplicabletoanysamplingoperationrequiredtoensurethat,whenthefluidentersthelaunchvehicleorspacecraft,thefluidcompositioncomplieswiththelimitsprovidedhereafterorwithanytechnicalspecificationagreedtoforaparticularuse.
【中国标准分类号】:V04
【国际标准分类号】:49_140
【页数】:6P.;A4
【正文语种】:英语