【英文标准名称】:Electricalapparatusforthedetectionandmeasurementofflammablegases-Part3:PerformancerequirementsforgroupIapparatusindicatingavolumefractionupto100%methaneinair
【原文标准名称】:可燃性气体的检测和测量用电气设备第3部分:I类设备(指示空气中甲烷的体积百分率最大为100%)的性能要求
【标准号】:IEC61779-3-1998
【标准状态】:作废
【国别】:国际
【发布日期】:1998-04
【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】:规范(验收);气体;测量;电驱动装置;电气器具;电气工程;可燃性环境;甲烷;气体燃料;煤气
【英文主题词】:Electricappliances;Electricalengineering;Electrically-operateddevices;Flammableatmospheres;Fuelgases;Gases;Measurement;Methane;Specification(approval)
【摘要】:1ThispartofIEC61779specifiesrequirementsforgroupI(asdefinedinpart1)portable,transportableandfixedapparatusforthedetectionandmeasurementofmethaneconcentrationsinmineair.Theapparatus,orpartsthereof,areintendedforuseinminessusceptibletofiredamp.Therequirementsandtestmethodsapplicabletotheapparatuscoveredbythisstandardarespecifiedinpart1.NOTE-TheuseofgroupIapparatusmaynotbepermittedwithouttheadditionalandpriorapprovaloftherelevantauthorityinminesunderitsjurisdiction,seenote1of1.1.1ofpart1.2Thisstandardisrestrictedtoapparatusintendedforthedetectionandmeasurementofvolumeratiosofmethaneinairfromavolumefractionof0%uptoavolumefractionof100%.NOTE-Apparatuscoveredbythisstandardwillnormallybeintendedtooperateinvolumeratiosgreaterthanavolumefractionof5%.
【中国标准分类号】:N56
【国际标准分类号】:13_320
【页数】:7P;A4
【正文语种】:英语