欧洲标准Eurovent认证VS中国国标要求翻译

EuropeanstandardEurovenapprovalVSChinesestandarddemandIntheearly90s,theEuropeanandAmericanairconditionercompanieswereestablishedplantgraduallyinChinaandthenbroughttechnologyofairpurificationintoChina.AirconditionerprofessionalsaregettingmoreandmorefamiliarwithEuropeanEn1886standards.Inrecentyears,withtheimprovementoftheairconditionerenergysavingandenvironmentalrequirements,moreandmoreownersanddesigninginstitutetendstoinspectairhandlingunitswithEuropeanEN1886standard.Asindustryandcleaningproject,someperformanceoftheunitsshouldfollowthestandard’sspecificgrades.itwouldbeenaskedforperformanceofboxreachingthisstandard’slevelmoredefinite.WhereisthespecialtyoftheEuropeanEN1886standard?What’sthedifferencebetweenEuropeanEN1886standardandnationalstandardGB14294?ThefollowingcomparisonwillmakeyouunderstandtheEuropeanEN1886standard.EN1886-2007GB14294-2008Unitdegreeofmechanical1.Relativedeformation=max(××’’/PQ,×’×’’/RS)2.Intensityscale:bedividedintothreegradeslikeD1、D2andD3accordingtotherelativedeformation,andthepermanentdeformationislessthan2mm/mafterthepressureisrelieved;3.Testingpressure：Modularmachine±1000Pa,totestdeformation,±2500Pa,totestthepermanentdeformation.Realmachine1.Relativedeformation=maximumdeformation/longestedge;2.Deformationlessthan4mm/m,ordisqualification;3.Testingpressure:4.Machine’sairvolumemorethan30000m³/h,testedbyusing±1000Pa,norequirementofpermanentdeformationvolume.5.SametreatmenttopositivepressureandnegativepressureUnitdegreeofmechanicalcantestdeformationandpermanentdeformationwhenachievingmaximumpressurebyusingworkingpressureandmachineunits.4.positivepressureandnegativepressuresectionTotestpositivepressureandnegativepressuresectionoftherealmachinebyusingpositivepressureandnegativepressureseparately,whichshouldfollowtherequirementsofthemachineunit.EN1886-2007hasmoredetailedtestdemandscomparedwithexistingnationalstandardGB14294-2008Unitleakage1.Gradingschedule2.Testmustbeafterthestrengthtestisover3.Calculationmethod:airleakagepercent=airleakagevolume/machineunit’ssuperficialarea-400Pa+700PamaximummaximumLevelleakageeakagePercentpercentL/(m²*s)L/(m²*s)L10.150.22L20.440.63L31.321.9Thecalculationresultswithairvolumesizehasnodirectrelation1.Nograding:airleakagelessthan2%(Airpurifyingunit1%);2.Noregulation;3.Airleakagepercent=airleakagevolume/ratedairleakagevolumeMorenominalairvolume,andlessairleakagepercentinasameunitTheresultshavenostraightconnectiontonominalairvolume.Testingunit’sairleakagepercentmustbeafterthestrengthistested,whichhasnotbeenrequiredincurrentnationalstandard.Thecalculationofnationalstandardairleakagepercent:airleakagepercent=airleakagevolume/ratedairvolume.Morenominalairvolume,andlessairleakagepercentinasameunit.Asaresult,EN1886’sevaluationofairleakagepercentwillpresenttheconditionwhethertheoperationoftheunitiseconomic.EN1886-2007GB14294-2008Theunitthermalperformance1.Unit’sheattransmission2.Tomeasurebyheattransmissionparameter.Tobegradedintofivegradesbyheattransmissionparameter:T1,T2,T3,T4,T53.Anti-frostofunit4.Tomeasurebyheattransmissionparameter.Tobegradedintofivegradesbyheattransmissionparameter:TB1,TB2,TB3,TB4,TB55.Testofheattransmissionparameter6.Canbecalculatedbytestingthewholeunit’sheattransmission7.Testofheatbridging8.Totestsometestingpointsoftheunits,andtheminimumistheheatbridgingparameteroftheunits.(themoretheheatbridgingis,thehigherthegradeis.)HeattransferCoefficientcoefficientofthermalclassificationbridgeHTCLevelLevelTBCW/(m²*k)T1U≦0.5TB10.75≦KB﹤1.0T20.5﹤U≦1.0TB20.60≦KB﹤0.75T31.0﹤U≦1.4TB30.45≦KB﹤0.60T41.4﹤U≦2.0TB40.30≦KB﹤0.45T5norequestTB5norequest1.Unit’sheattransmission2.Panel’sheatinsulationmorethan0.74k/W(thecorrespondingheattransmissionparameteris1.35W/(mK))3.Performanceofunit’scondensation-proofNospecificgraderegulation.Regulationofnocondensationonthemachine’ssurfacewithin4hours’operation.Abitobscure.4.Testoftheunit’sheattransmissionNoregulation.Onlyregulationoftheheatinsulationoftheunit’spanel.Andtheunit’spanelisusuallythemostpartofheatinsulationoftheunitstructure.5.Testoftheperformanceoftheunit’scondensation-proofNoregulationofheatbridgingparameter.Onlytestconditionofcondensation.Vagueandhardevaluation.AndaveragethermalperformanceisbarelyUnitSoundinsulationIncomparison,EN1886hasspecifictestmethodsandevaluationoftheunit’sthermalperformanceandcanreflectthedifferenceofstrengthandenergysavingresultsofunit’sheatbridgingandthermalinsulationperformance.Requirements:Togivethecentrefrequency’scorrespondingsilencingquantityoftheeighttimesfrequencyspectrum.Onlyregulationofspecificairvolume.ThecorrespondingnoiseofstaticpressureisnomorethanthelimitationFireproofperformanceRequirements:Regulationofusingrestrictionoftheunit’sinflammablematerial;Specificregulationoffireproofrequirementoftheunit’sallcomponentsandeasytoevaluate.Requirements:nospecificrequirementoffire-retardantandnon-flammableperformanceoftheunitmaterial’sexposedpartsortheunit.ThecomparisonoftwotestingmethodandevaluationstandardofthecorrespondingAHU’sairleakagepercentandthermalperformancefromEN1886standardandn