【英文标准名称】:StandardTestMethodforSmokeObscurationofInsulatingMaterialsContainedinElectricalorOpticalFiberCablesWhenBurninginaVerticalCableTrayConfiguration
【原文标准名称】:电缆或光缆中绝缘材料在立式电缆槽结构中燃烧时的烟雾遮蔽性标准试验方法
【标准号】:ASTMD5424-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D09.21
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:氧消耗;绝缘材料;一氧化碳;有毒气体;二氧化碳;点火;热量计;电绝缘材料;仪器装置;绝缘;燃烧气体;电缆;试验;设计;烟;防火安全;排气系统
【英文主题词】:cable;cabletray;carbondioxide;carbonmonoxide;char;electricalcable;fire;fire-testresponse;flame;heatrelease;heatreleaserate;ignition;opticaldensity;opticalfibercable;oxygenconsumptioncalorimetry;smokeobscuration;smokerelease;smokereleaserate;totalsmokereleased;toxicgases
【摘要】:Thistestmethodprovidesameanstomeasureavarietyoffire-test-responsecharacteristicsassociatedwithsmokeobscurationandresultingfromburningtheelectricalinsulatingmaterialscontainedinelectricaloropticalfibercables.Thespecimensareallowedtoburnfreelyunderwellventilatedconditionsafterignitionbymeansofapropanegasburner.Smokeobscurationquantifiesthevisibilityinfires.Thistestmethodisalsosuitableformeasuringtherateofheatreleaseasanoptionalmeasurement.Therateofheatreleaseoftenservesasanindicationoftheintensityofthefiregenerated.Otheroptionalfire-test-responsecharacteristicsthataremeasurablebythistestmethodareusefultomakedecisionsonfiresafety.Themostimportantgaseouscomponentsofsmokearethecarbonoxides,presentinallfires.Theyaremajorindicatorsofthetoxicityoftheatmosphereandofthecompletenessofcombustionandareoftenusedaspartoffirehazardassessmentcalculationsandtoimprovetheaccuracyofheatreleasemeasurements.Othertoxicgases,whicharespecifictocertainmaterials,arelesscrucialfordeterminingcombustioncompleteness.TestLimitations:5.5.1Thefire-test-responsecharacteristicsmeasuredinthistestmethodarearepresentationofthemannerinwhichthespecimenstestedbehaveundercertainspecificconditions.Donotassumetheyarerepresentativeofagenericfireperformanceofthematerialstestedwhenmadeintocablesoftheconstructionunderconsideration.5.5.2Inparticular,itisunlikelythatthistestmethodisanadequaterepresentationofthefirebehaviorofcablesinconfinedspaces,withoutabundantcirculationofair.5.5.3Thisisanintermediate-scaletest,andthepredictabilityofitsresultstolargescalefireshasnotbeendetermined.Someinformationexiststosuggestthatithasbeenvalidatedagainstsomelarge-scalescenarios.1.1Thisisafire-test-responsestandard.1.2Thistestmethodprovidesameanstomeasurethesmokeobscurationresultingfromburningelectricalinsulatingmaterialscontainedinelectricaloropticalfibercableswhenthecablespecimens,excludingaccessories,aresubjectedtoaspecifiedflamingignitionsourceandburnfreelyunderwellventilatedconditions.1.3Thistestmethodprovidestwodifferentprotocolsforexposingthematerials,whenmadeintocablespecimens,toanignitionsource(approximately20kW),fora20mintestduration.Useittodeterminetheflamepropagationandsmokereleasecharacteristicsofthematerialscontainedinsingleandmulticonductorelectricaloropticalfibercablesdesignedforuseincabletrays.1.4Thistestmethoddoesnotprovideinformationonthefireperformanceofelectricaloropticalfibercablesinfireconditionsotherthantheonesspecificallyusedinthistestmethodnordoesitmeasurethecontributionofthecablestoadevelopingfirecondition.1.5Datadescribingtheburningbehaviorfromignitiontotheendofthetestareobtained.1.6Theproductionoflightobscuringsmokeismeasured.1.7Theburningbehaviorisdocumentedvisually,byphotographicorvideorecordings,orboth.1.8Thetestequipmentissuitableformakingother,optional,measurements,includingtherateofheatreleaseoftheburningspecimen,byanoxygenconsumptiontechniqueandweightloss.1.9Anothersetofoptionalmeasurementsaretheconcentrationsofcertaintoxicgasspeciesinthecombustiongases.1.10ThevaluesstatedinSIunitsaretoberegardedasthestandard(seeIEEE/ASTMSI10).Thisstandardmeasuresanddescribestheresponseofmaterials,products,orassembliestoheatandflameundercontro......
【中国标准分类号】:K10
【国际标准分类号】:13_220_40;29_035_01;29_060_01
【页数】:20P.;A4
【正文语种】:


【英文标准名称】:Low-voltageswitchgearandcontrolgear-Part5-1:Controlcircuitdevicesandswitchingelements-Electromechanicalcontrolcircuitdevices;Amendment2
【原文标准名称】:低压开关设备和控制设备第5-1部分:控制电路器件和切换元件机电控制电路器件修改2
【标准号】:IEC60947-5-1AMD2-1999
【标准状态】:作废
【国别】:国际
【发布日期】:1999-10
【实施或试行日期】:
【发布单位】:国际电工委员会(IEC)
【起草单位】:IEC/SC17B
【标准类型】:()
【标准水平】:()
【中文主题词】:控制开关;机电装置;特性;电气工程;电控制设备;试验;开关设备;开关;机电的;电磁兼容性;电磁兼容性;开关操纵元件;定义;定义;低电压;低压开关设备;控制装置;控制设备;规范(验收);低压设备
【英文主题词】:
【摘要】:
【中国标准分类号】:K31
【国际标准分类号】:29_130_20
【页数】:21P;A4@
【正文语种】:英语