IEC 61779-6-1999 可燃性气体的检测和测量用电气设备第6部分:可燃性气体检测和测量设备的选择、安装、使用和维护导则

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【英文标准名称】:Electricalapparatusforthedetectionandmeasurementofflammablegases-Part6:Guidefortheselection,installation,useandmaintenanceofapparatusforthedetectionandmeasurementofflammablegases
【原文标准名称】:可燃性气体的检测和测量用电气设备第6部分:可燃性气体检测和测量设备的选择、安装、使用和维护导则
【标准号】:IEC61779-6-1999
【标准状态】:作废
【国别】:国际
【发布日期】:1999-06
【实施或试行日期】:
【发布单位】:国际电工委员会(IEC)
【起草单位】:IEC/SC31L
【标准类型】:()
【标准水平】:()
【中文主题词】:燃烧气体;选择;可燃性环境;测量仪器;装置;气体检测器;电驱动装置;指导手册;安装;安全要求;电气器具
【英文主题词】:Burninggases;Electricappliances;Electrically-operateddevices;Flammableatmospheres;Gasdetectors;Guidebooks;Installations;Measuringinstruments;Safetyrequirements;Selection
【摘要】:1ThispartofIEC61779givesguidanceontheselection,installation,useandmaintenanceofelectricallyoperatedgroupIIapparatusforthedetectionandmeasurementofflammablegasescomplyingwiththerequirementsofIEC61779-1toIEC61779-5.Itisacompilationofpracticalknowledgetoassisttheuser,andappliestoapparatus,instrumentsandsystemsthatindicatethepresenceofaflammableorpotentiallyexplosivemixtureofgasorvapourwithairbyusinganelectricalsignalfromagassensortoproduceameterreading,toactivateavisualoraudiblepre-setalarmorotherdevice,oranycombinationofthese.NOTE-Wheninclassifiedareas,theapparatusshouldbesoinstalledandusedthatitisnotcapableofitselfignitingacombustiblegas-airmixture.ItshouldthereforecomplywiththerequirementsofIEC60079-10.Forthepurposeofthisstandard,flammablegasesshallincludeflammablevapours.2ThisstandardappliesonlytogroupIIapparatusintendedforuseinindustrialandcommercialsafetyapplications,involvingareasclassifiedinaccordancewithIEC60079-10.Forthepurposeofthisstandard,apparatusincludesa)fixedapparatus;b)transportableapparatus;andc)portableapparatus.3Thisstandardisnotintendedtocoverthefollowing:a)apparatusintendedonlyforthedetectionofnon-flammabletoxicgases;b)apparatusoflaboratoryorscientifictypeintendedonlyforanalysisormeasurementpurposes;c)apparatusintendedforundergroundminingapplications;d)apparatusintendedforapplicationsinexplosivesprocessingandmanufacture;e)apparatusintendedonlyforprocesscontrolapplications;f)apparatusintendedforthedetectionofapotentiallyflammableatmosphereesultingfromdustormistinair.
【中国标准分类号】:N56
【国际标准分类号】:13_230;13_320;17_060;29_260_20
【页数】:58P;A4
【正文语种】:英语


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【英文标准名称】:TestMethodforTransferImpedance
【原文标准名称】:传输阻抗的试验方法
【标准号】:ANSI/SCTE78-2007
【标准状态】:作废
【国别】:美国
【发布日期】:
【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】:SCTE
【标准类型】:()
【标准水平】:()
【中文主题词】:电缆通信;同轴电缆;阻抗;测量;测试;传输阻抗
【英文主题词】:Cablecommunication;Coaxialcables;Impedance;Measurement;Testing;Transferimpedance
【摘要】:Thisprocedureisforthemeasurementoftransferimpedanceofcoaxialdropcablesfrom5MHzto1,002MHz.
【中国标准分类号】:K13
【国际标准分类号】:33_120_10
【页数】:
【正文语种】:英语


Product Code:SAE AMS3714
Title:Core, Overexpanded Honeycomb, Polyamide Paper Base, Phenolic Coated
Issuing Committee:Ams P Polymeric Materials Committee
Scope:This specification covers honeycomb core made of polymide paper sheets and supplied in the form of blocks, slices, and ordered shapes, the cells of the core being in an overexpanded, rectangular configuration.