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【英文标准名称】:Electricalapparatusforthedetectionandmeasurementofflammablegases-PerformancerequirementsforgroupIIapparatusindicatingavolumefractionupto100%gas
【原文标准名称】:可燃性气体的检测和测量用电气装置.指示体积分率达到100%时II组装置的性能要求
【标准号】:BSEN61779-5-2000
【标准状态】:作废
【国别】:英国
【发布日期】:2000-09-15
【实施或试行日期】:2000-09-15
【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】:气体;煤气;采掘设备;安全装置;爆炸性环境;警告装置;电气设备;蒸气;电子设备及元件;可燃性环境;容积测量;探测器;易燃材料;气体检测器
【英文主题词】:Burninggases;Electricappliances;Electricalappliances;Electricalengineering;Electrically-operateddevices;Flammableatmospheres;Gases;Measurement;Measuringranges;Performanceinservice;Specification(approval)
【摘要】:1ThispartofIEC61779specifiesrequirementsforgroupII(asdefinedinpart1)portable,transportableandfixedapparatusforthedetectionandmeasurementofcombustiblegasorvapourconcentrationswithair.Theapparatus,orpartsthereof,maybeinstalledorusedinpotentiallyexplosiveatmospheres,otherthanminessusceptibletofiredamp(i.e.groupI).Therequirementsandtestmethodsapplicabletotheapparatuscoveredbythisstandardarespecifiedinpart1.2Thisstandardisrestrictedtoapparatusintendedforthedetectionandmeasurementofvolumeratiosofcombustiblegasorvapourinairinvolumefractionsfrom0%to100%.NOTE1-Apparatuscoveredbythisstandardwillnormallybeintendedtooperateinvolumeratiosgreaterthan100%LEL.NOTE2-Althoughapparatusofthetypescoveredbythisstandardmaybesuitablefordetectingawiderangeofcombustiblegases,particulargases(e.g.methaneorpropane)arespecifiedinpart1asthecomponentsofthetestgasesforthepurposeofpracticalconvenience.Theperformancerequirementsspecifiedinthisstandardshouldthereforebeconsideredwithcautionwhentheapparatusisusedtodetectothercombustiblegases,assomeparameters-suchastimeofresponse-willbemodified.
【中国标准分类号】:N55
【国际标准分类号】:13_320;17_060;29_260_20
【页数】:10P.;A4
【正文语种】:英语