BS 7698-10-1999 往复式内燃机驱动交流发电机组.用包络表面法对空气中噪音进行测定
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【英文标准名称】:Reciprocatinginternalcombustionenginedrivenalternatingcurrentgeneratingsets-Measurementofairbornenoisebytheenvelopingsurfacemethod
【原文标准名称】:往复式内燃机驱动交流发电机组.用包络表面法对空气中噪音进行测定
【标准号】:BS7698-10-1999
【标准状态】:现行
【国别】:英国
【发布日期】:1999-01-15
【实施或试行日期】:1999-01-15
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:往复式发动机;法规;声强;位置;原动机;水路运输工程部件;内燃机;报告;静止的;声学测量;名称与符号;误差修正;易动的;交流发电机;噪声(环境的);准确度;电气设备;发电机;固定的;电机;试验条件
【英文主题词】:Acoustictesting;Acoustics;Definition;Definitions;Internalcombustionengines;Measurementofairbornenoise;Motorgenerator;Noise
【摘要】:ThispartofISO8528definesmeasurementmethodsforthedeterminationofairbornenoiseemittedbyreciprocatinginternalcombustionenginedrivengeneratingsetsinsuchawaythatthetotalofrelevantnoiseemissions,e.g.exhaustandcoolingsystemnoise,togetherwithallothersourcesofenginenoise,areevaluatedonasimilarbasistoyieldcomparableresults.However,whentheexhaustandcoolingsystemsareductedtoaremotesitetheirnoisecontributionisnottobeincludedinthispartofISO8528.Theessentialnoiseemissioncharacteristicvalueisthesoundpowerlevel.TheresultsofmeasurementtakeninaccordancewiththispartofISO8528areclassifiedaseitheraccuracygrade2orgrade3dependingonwhichacousticmeasurementconditionsarecompliedwith.Accuracygrade2(i.e.,engineeringmethodinaccordancewithISO3744)requiresthemeasuringareatobeasubstantiallyacoustic-freefieldoverareflectingplane(withanenvironmentalcorrectionK2A≤2dB)andwithnegligiblebackgroundnoiselevel(backgroundnoisecorrectionK1A≤1,3dB).Accuracygrade3(i.e.surveymethodinaccordancewithISO3746)requirestheenvironmentalcorrectionK2Atobelessorequalthan7dB,andthebackgroundnoisecorrectionK1Atobelessorequalthan3dB.FortheoperationofageneratingsetundersteadyconditionsthispartofISO8528allowsforthecalculationoftheA-weightedsoundpowerlevelaswellasappropriateoctaveoronethirdoctavesoundpowerlevelfortheappropriateaccuracygrade.ThispartofISO8528appliestoRICenginedrivenACgeneratingsetsforfixedandmobileapplicationswithrigidorflexiblemountings.Itisapplicableforlandandmarineuse,excludinggeneratingsetsusedonaircraftortopropellandvehiclesandlocomotives.NOTE1ThispartofISO8528hasbeendevelopedforRICenginedrivenACgeneratingsets,butitcanalsobeappliedtoRICenginedrivenDCgeneratingsets.NOTE2Forsomespecificapplications(e.g.essentialhospitalsupplies,highrisebuildings,etc.)supplementaryrequirementsmaybenecessary.TheprovisionsofthispartofISO8528shouldberegardedasabasis.NOTE3Truecomparisonscanonlybemadebetweengeneratingsetswhenthemeasurementareclassifiedinthesameaccuracygrade.
【中国标准分类号】:K52
【国际标准分类号】:17_140_20;29_160_40
【页数】:22P.;A4
【正文语种】:英语
【原文标准名称】:往复式内燃机驱动交流发电机组.用包络表面法对空气中噪音进行测定
【标准号】:BS7698-10-1999
【标准状态】:现行
【国别】:英国
【发布日期】:1999-01-15
【实施或试行日期】:1999-01-15
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:往复式发动机;法规;声强;位置;原动机;水路运输工程部件;内燃机;报告;静止的;声学测量;名称与符号;误差修正;易动的;交流发电机;噪声(环境的);准确度;电气设备;发电机;固定的;电机;试验条件
【英文主题词】:Acoustictesting;Acoustics;Definition;Definitions;Internalcombustionengines;Measurementofairbornenoise;Motorgenerator;Noise
【摘要】:ThispartofISO8528definesmeasurementmethodsforthedeterminationofairbornenoiseemittedbyreciprocatinginternalcombustionenginedrivengeneratingsetsinsuchawaythatthetotalofrelevantnoiseemissions,e.g.exhaustandcoolingsystemnoise,togetherwithallothersourcesofenginenoise,areevaluatedonasimilarbasistoyieldcomparableresults.However,whentheexhaustandcoolingsystemsareductedtoaremotesitetheirnoisecontributionisnottobeincludedinthispartofISO8528.Theessentialnoiseemissioncharacteristicvalueisthesoundpowerlevel.TheresultsofmeasurementtakeninaccordancewiththispartofISO8528areclassifiedaseitheraccuracygrade2orgrade3dependingonwhichacousticmeasurementconditionsarecompliedwith.Accuracygrade2(i.e.,engineeringmethodinaccordancewithISO3744)requiresthemeasuringareatobeasubstantiallyacoustic-freefieldoverareflectingplane(withanenvironmentalcorrectionK2A≤2dB)andwithnegligiblebackgroundnoiselevel(backgroundnoisecorrectionK1A≤1,3dB).Accuracygrade3(i.e.surveymethodinaccordancewithISO3746)requirestheenvironmentalcorrectionK2Atobelessorequalthan7dB,andthebackgroundnoisecorrectionK1Atobelessorequalthan3dB.FortheoperationofageneratingsetundersteadyconditionsthispartofISO8528allowsforthecalculationoftheA-weightedsoundpowerlevelaswellasappropriateoctaveoronethirdoctavesoundpowerlevelfortheappropriateaccuracygrade.ThispartofISO8528appliestoRICenginedrivenACgeneratingsetsforfixedandmobileapplicationswithrigidorflexiblemountings.Itisapplicableforlandandmarineuse,excludinggeneratingsetsusedonaircraftortopropellandvehiclesandlocomotives.NOTE1ThispartofISO8528hasbeendevelopedforRICenginedrivenACgeneratingsets,butitcanalsobeappliedtoRICenginedrivenDCgeneratingsets.NOTE2Forsomespecificapplications(e.g.essentialhospitalsupplies,highrisebuildings,etc.)supplementaryrequirementsmaybenecessary.TheprovisionsofthispartofISO8528shouldberegardedasabasis.NOTE3Truecomparisonscanonlybemadebetweengeneratingsetswhenthemeasurementareclassifiedinthesameaccuracygrade.
【中国标准分类号】:K52
【国际标准分类号】:17_140_20;29_160_40
【页数】:22P.;A4
【正文语种】:英语
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