【英文标准名称】:Electromagneticcompatibility(EMC)-Part4:Testingandmeasuringtechniques;section7:Generalguideonharmonicsandinterharmonicsmeasurementsandinstrumentation,forpowersupplysystemsandequipmentconnectedthereto(IEC61000-4-7:1991);Germa
【原文标准名称】:电磁兼容性.第4部分:试验和测量技术.第7节:供电系统和与供电系统相连接的谐振测量和相互调和测量及其仪器仪表导则
【标准号】:DINEN61000-4-7-1994
【标准状态】:作废
【国别】:德国
【发布日期】:1994-08
【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】:供应系统;测量技术;电磁兼容性;电磁兼容性;测量方法;电气设备;测量仪器;电磁试验;电磁学;电网;影响量;电气工程;干扰抑制;电流;电气器具;频率;低频;电压;信号;指导手册;试验;谐波;振动测量
【英文主题词】:
【摘要】:
【中国标准分类号】:L06
【国际标准分类号】:33_100
【页数】:28P;A4
【正文语种】:德语
【英文标准名称】:Explosiveatmospheres.Equipmentprotectionbypressurizedroom"p"
【原文标准名称】:易爆气体环境.增压空间"p"型防护设备
【标准号】:BSEN60079-13-2010
【标准状态】:现行
【国别】:英国
【发布日期】:2011-05-31
【实施或试行日期】:2011-05-31
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Aeration;Analyzers;Constructionrequirements;Definitions;Design;Electricalengineering;Electricalequipment;Electrically-operateddevices;Equipmentrooms;Explosionprotection;Explosiveatmospheres;Marking;Pressurization;Pressurizing;Protectedelectricalequipment;Safety;Structures;Typeofprotection;Typepprotectedelectricalequipment;Ventilation
【摘要】:ThispartofIEC60079givesrequirementsforthedesign,construction,assessmentandtestingandmarkingofroomsprotectedbypressurizationin:?aroomlocatedinanexplosivegasatmosphereorexplosivedustatmospherehazardousareathatdoesnotincludeaninternalsourceofaflammablesubstance;?aroomlocatedinanexplosivegasatmosphereorexplosivedustatmospherehazardousareathatincludesaninternalsourceofaflammablesubstance;?aroomlocatedinanon-hazardousareathatincludesaninternalsourceofaflammablesubstance.NOTEIfventilationisusedandpressurizationisnotused,thenthispartofIEC60079doesnotapply.ThesituationiscoveredbytherequirementsofIEC60079-10-1.Aroommaybeasingleroom,multiplerooms,acompletebuildingoraroomcontainedwithinabuildingandincludesinletandoutletducts.ThispartofIEC60079alsoincludesrequirementsforassociatedequipment,safetydevicesandcontrolsnecessarytoensurethatpressurizationisestablishedandmaintained.ThispartofIEC60079coversroomsorbuildingsthatareconstructedorassembledonsite,whichmaybeeitheronlandoroff-shore,designedtofacilitatetheentryofpersonnelandprimarilyintendedforinstallationbyanend-userandverificationonsite.Theroommaybelocatedinanexplosivegasatmosphereoraexplosivedustatmosphererequiringequipmentprotectionlevels(EPL)Gb,Db,GcorDc.ThispartofIEC60079doesnotspecifythemethodsthatmayberequiredtoensureadequateairqualityforpersonnelwithregardtotoxicityandtemperaturewithintheroom.NOTE1WhilstthescopeofthispartofIEC60079doesnotaddresstoxicityitisvitalthatproperconsiderationisgiventothisaspecttoensurethesafetyofpersonnel.Nationalregulationsandrequirementsshouldbeobservedinthisregard.NOTE2ThereisarelatedstandardIEC60079-2(Equipmentprotectionbypressurizedenclosure)coveringthedifferentconditionsencounteredwhenusingthepressurizationtechnique.NOTE3MaintenanceneedsarecontainedinAnnexBuntiltheyareincludedIEC60079-17.NOTE4ForthepurposesofthispartofIEC60079,theterms"lowerflammablelimit(LFL)"and"lowerexplosivelimit(LEL)"aredeemedtobesynonymous,andlikewisetheterms"upperflammablelimit(UFL)"and"upperexplosivelimit(UEL)"aredeemedtobesynonymous.Foreaseofreference,thetwoabbreviationsLFLandUFLmaybeusedhereinaftertodenotethesetwosetsofterms.Itshouldberecognizedthatparticularauthoritieshavingjurisdictionmayhaveoverridingrequirementsthatdictatetheuseofoneofthesesetsoftermsandnottheother.ThispartofIEC60079supplementsandmodifiesthegeneralrequirementsofIEC60079-0,exceptasindicatedinTable1.WherearequirementofthisstandardconflictswitharequirementofIEC60079-0,therequirementofthisstandardtakesprecedence.
【中国标准分类号】:
【国际标准分类号】:29_260_20
【页数】:42P.;A4
【正文语种】:英语
基本信息
| 标准名称： | YKA型圆块孔式石墨换热器 |
| 中标分类： |
化工 >>
化工机械与设备 >>
非金属化工机械设备 |
| 替代情况： | 被HG/T 3113-98代替 |
| 发布日期： | |
| 实施日期： | 1994-10-01 |
| 首发日期： | |
| 作废日期： | 1998-10-01 |
| 出版日期： | |
| 页数： | 5页 |
适用范围
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前言
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目录
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引用标准
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所属分类： 化工 化工机械与设备 非金属化工机械设备