UL 2049 BULLETIN-2007 住宅用管道加热电缆UL安全性标准

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【英文标准名称】:ULStandardforSafetyResidentialPipeHeatingCable
【原文标准名称】:住宅用管道加热电缆UL安全性标准
【标准号】:UL2049BULLETIN-2007
【标准状态】:现行
【国别】:美国
【发布日期】:2007-02-23
【实施或试行日期】:
【发布单位】:美国保险商实验所(US-UL)
【起草单位】:UL
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:1.1Thesetestsareapplicabletojointsystemsofvariousmaterialsandconstructionthatareintendedforuseinlinearopeningsbetweenadjacentfireresistivestructures.1.2Thefireenduranceratingsforjointsystemsareintendedtoregisterperformanceduringtheperiodoffireexposureandarenotintendedtobeinterpretedashavingdeterminedtheacceptabilityofthejointsystemsforusebeforeorafterfireexposure.Theintentofthesemethodsistodevelopdatatoassistothersindeterminingthesuitabilityofthejointsystemswherefireresistanceisrequired.1.3Theserequirementsareintendedtoevaluatethelengthoftimethatthetypesofjointsystemsspecifiedin1.1willcontainafireduringapredeterminedtestexposure.Thetestevaluatesthejointsystem'sresistancetoheatand,insomeinstances,toahosestream,whilecarryinganappliedloadiftheassemblyisloadbearing.Themethodoftestingalsoincludesoptionalairleakageteststodeterminetherateofairleakagethroughjointsystemsresultingfromaspecifiedairpressuredifferenceappliedacrossthesurfaceofthejointsystems.1.4Undertheserequirementsajointsystemissubjectedtoastandardfireexposurecontrolledtoachievespecifiedtemperaturesthroughoutaspecifiedtimeperiod.Thisexposurebyit
【中国标准分类号】:K13
【国际标准分类号】:13_220_50
【页数】:
【正文语种】:英语