【英文标准名称】:Firehazardtesting-Part6:Guidanceandtestmethodsontheassessmentofobscurationhazardofvisioncausedbysmokeopacityfromelectrotechnicalproductsinvolvedinfires-Section30:Smallscalestaticmethod-Determinationofsmokeopacity-De
【原文标准名称】:着火危险试验第6部分:火中电工产品产生的烟雾蔽光性引起的遮蔽危险的评定指南和试验方法第30节:小规模静态试验方法烟蔽光性的测定仪器说明
【标准号】:IEC/TR260695-6-30-1996
【标准状态】:现行
【国别】:国际
【发布日期】:1996-10
【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/TC89
【标准类型】:()
【标准水平】:()
【中文主题词】:能见度干扰;遮光的;烟密度;烟;试验;燃烧试验;火灾危险;电工产品
【英文主题词】:Black-out;Electrotechnicalproducts;Firerisks;Firetests;Interferencewithvisibility;Smoke;Smokedensity;Testing
【摘要】:ThissectionofIEC695-6describestheapparatus,calibrationproceduresandbasicexperimentalproceduresforthedeterminationofthespecificopticaldensityofsmokeproducedbymaterialsexposedverticallytoaradiantheatsourcewithorwithouttheapplicationofapilotflame.Thetestspecimensareofadefinedsize.Thedeterminationoftheopticaldensityiscarriedoutinapressurecontrolledchamberpreviouslycalibratedwithreferencematerials.Thismethodisapplicabletosolid,non-metallicflattestspecimensonly.Itisnotsuitableforusewithnon-planarspecimens,e.g.insulatedwireandcable,becauseitisnotpossibletoobtainahomogeneousdistributionofheatfluxwithsuchproducts.Thisstandarddoesnotprovideaclassificationsystemforthebehaviourofmaterials.Materialswhichmeltandflowawayfromthedirectimpingmentofheatfluxmaynotprovidereproducibleresultsandthismethodisnotapplicable.Virtuallyallnon-metallicmaterials,includingthoseusedinelectrotechnicalproducts,emitsmokewhenexposedtoheat.Amongthehazardsassociatedwithfire,smokecauseshumanandmaterialdamageandimpairsfirefighting.Consequently,areductionintherateofgenerationofopaquesmokeproducedbymaterials/productsduringafirereducesdamagetoequipment,facilitatesevacuationofpeopleandemergencyservicesinter-vention.WARNING:Appropriatesafetymeasuresaretobetakenastoxicandharmfuleffluentsmaybeproducedbypyrolysisorcombustionoftestspecimens.
【中国标准分类号】:C80
【国际标准分类号】:13_220_40;29_020
【页数】:69P.;A4
【正文语种】:英语