电缆耐火性能术语

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1、HelkamaBicaShanghai赫科玛电缆（上海）有限公司TerminologyforFirePropertiesofCables电缆耐火性能术语TerminologyforFireProperties耐火性能术语Flame-retardant滞燃Halogen-free无卤Smokeemission烟雾散发Fire-resistant阻燃Regulations规则Conclusion总结Contents目录Donotspreadfire不会使火蔓延Areself-extinguishing自动灭火Withstandthetestsspecifiedinstan

2、dards通过标准中规定的测试IEC60332-1-2(thetestforsingleinsulatedwireorcable)IEC60332-1-2（针对单根绝缘导线和电缆的测试）IEC60332-3-22(thetestforbunchedwiresandcables)IEC60332-3-22（针对成束导线和电缆的测试）Flame-retardantCables滞燃电缆StandardseriesIEC60332-1-xIEC60332-1-x标准Thetestforsingleinsulatedwireorcable针对单根绝缘导线和电缆的测试There

3、quirementforpassingthetestisthatminimum50mmofthecable,measuredfromtheuppersupport,mustremainunburnedafterthespecifiedtime在规定的时间内进行燃烧后，从右图中电缆上端的支架开始向下，必须至少有50mm长度的电缆没有被烧到。StandardseriesIEC60332-3-xxIEC60332-3-xx标准Thetestforbunchedwiresandcables针对成束导线和电缆的测试ThetesthasthreecategoriesA,BandC

4、(A=7l/m,B=3,5l/m,C=1,5l/m)根据可燃材料总量和燃烧时间的不同界定，分为ABC三类（A.7升/米，B.3.5升/米，C.1.5升/米）Therequirementforpassingthetestisthataftertheburnerhasbeenremovedthecablesmustextinguishthemselves通过测试的要求是，当火源被移走后，电缆上的火焰应自动熄灭。Additionally,burningmaynotoccurmorethan2,5mfromtheburner此外，燃烧范围应如图所示在距火源2.5米之内Abou

5、tFlame-retardantCables阻燃电缆PVCisacommonmaterialusedinflame-retardantcables.聚氯乙烯是阻燃电缆常用的一种材料PopularityofPVCisbasedonitslowerpricecomparedtotheotheralternatives.与其它材料相比，聚氯乙烯价格较低，因此受到广泛使用Flame-retardantreferstothepropertiesofcabledesign.阻燃电缆指的是电缆设计出的性能Evenifusingthesamematerial,onecablestru

6、cturemightfulfillthestandard,anothernot.即使使用同样的材料，有的电缆因其结构设计而能够达到标准要求，而其他的电缆却不能。Halogen-free无卤Termsused:使用的术语Halogenfree,HF无卤，HFZerohalogen,ZHtai0H零卤，ZHtaiOHHalogen-freerefersonlytoabsenceofhalogens,suchaschlorineandfluorine.无卤指的是不含有氯和氟等卤素的成分Halogen-free,TechnicalSpecification无卤，技术规格Hal

7、ogen-freeisdeterminedonthebasisofhalogencontentandtheacidityofgasesofacable.无卤是根据电缆中的卤素含量和气体酸度来定义的。StandardIEC60754-1determinesthehalogencontentofthematerial.Tomeettherequirementashalogen-freethehalogencontentofthematerialmaynotexceed0,5%or5mg/g.IEC60754-1用来规定材料中的卤素含量。StandardI