TM E04 02 - IEC Standard 60335-1_(INTERNAL)

IECStandard60335-1Reference:IEC60335-1PreparedBy:EmilyTangDate:Mar7,03ApprovedBy:E&ETechnicalManagerApprovedDate:Nov28,2008BVCPS-ITME04Revision:022BureauVeritasPresentation_DateTrainingObjectives
Tounderstandsafetyconceptforhouseholdproduct
Tounderstandteststatedonsafetystandard1ScopeofIEC60335-12Knowledgeofsafetytest3ConstructionrequirementinIEC60335-1Chaptertitle1ScopeofIEC60335-15BureauVeritasPresentation_DateIEC60335-1scope•Thesafetyofelectricalappliancesforhouseholdandsimilarpurposes,theirratedvoltagebeingnotmorethan250Vforsingle-phaseappliancesand480Vforotherappliances.•Appliancenotintendedfornormalhouseholdusebutwhichneverthelessmaybedangertothepublic,suchasapplianceintendedtobeusedbylaymeninshops,inlightindustryandonfarms,arewithinthescopeofthisstandard.1ScopeofIEC60335-1Chaptertitle2Knowledgeofsafetytest7BureauVeritasPresentation_Date(1)(1)PowerinputandcurrentIfanapplianceismarkedwithratedpowerinput,thepowerinputatnormaloperationtemperatureshallnotdeviatedfromtheratedpowerinputbymorethanthedeviationshowninbelowtable12KnowledgeofSafetyTest8BureauVeritasPresentation_DateTypeofapplianceRatedpowerinput(W)DeviationHeatingappliancesandcombinedappliances25and=200±±±±10%200+5%or20W(whicheveristhegreater)–10%Motor-operatedappliance25and=300+20%300+15%or60W(whicheveristhegreater)Table12KnowledgeofSafetyTest9BureauVeritasPresentation_DateHeatingappliancesandcombinedappliances0,2and=1,0±±±±10%1,0+5%or0,10A(whicheveristhegreater)–10%Motor-operatedappliance0,2and=1,5+20%1,5+15%or0,3A(whicheveristhegreater)2KnowledgeofSafetyTest10BureauVeritasPresentation_Date►Ratedpowerinputpowerinputassignedtotheappliancebythemanufacture►Ratedcurrentcurrentassignedtotheappliancebythemanufacturer►Normaloperationtemperaturemeansapplianceinnormaloperationcondition2KnowledgeofSafetyTest11BureauVeritasPresentation_Date►HeatingapplianceApplianceincorporatingheatingelementsbutwithoutanymotor►Motor-operatedapplianceApplianceincorporatingmotorsbutwithoutanyheatingelement►CombinedapplianceApplianceincorporatingheatingelementsandmotors2KnowledgeofSafetyTest12BureauVeritasPresentation_DateExamplesofHeatingAppliance2KnowledgeofSafetyTest13BureauVeritasPresentation_Date8Examplesofmotor-operatedAppliance8ExamplesofcombinedAppliance2KnowledgeofSafetyTest14BureauVeritasPresentation_Date(2)EarthcontinuitytestAcurrentofatleast25A,derivedfromasourcehavingano-loadvoltagenotexceeding12V(a.c.ord.c.),ispassedbetweeneachoftheaccessibleearthedmetalpartsandearthpin.Thevoltagedropismeasuredandtheresistanceiscalculatedandshallnotexceed0,1Ω2KnowledgeofSafetyTest15BureauVeritasPresentation_Date(3)ElectricstrengthtestTable1-testvoltagesinIEC603352KnowledgeofSafetyTest16BureauVeritasPresentation_Date(4)Heatingtestapplianceandtheirsurroundingshallnotexceedingtemperatureduringnormaluse,oneisthermocouplemethod,anotherisresistancemethod.testcondition:热电偶温度记录仪导热绝缘胶纸测试角功率仪…Forstandardprotocol,weneednotdothistest1,06or0,94whichisunfavorable1,06or0,94whichisunfavorable1,15timesratedpowerinputTestvoltageCombinedapplianceMotorapplianceHeatingappliance2KnowledgeofSafetyTest17BureauVeritasPresentation_Date►Duringthetest,thetemperaturerisesaremonitoredcontinuouslyandshallnotexceedvalues温度记录仪温度记录仪温度记录仪温度记录仪热电偶热电偶热电偶热电偶导热绝缘胶纸导热绝缘胶纸导热绝缘胶纸导热绝缘胶纸2KnowledgeofSafetyTest18BureauVeritasPresentation_DateTemperaturerisesofwindingsaredeterminedbytheresistancemethodunlessthewindingsisdifficulttomakethenecessaryconnections,temperatureriseiscalculatedfromtheformula:Δt=(R2-R1)/R1(k+t1)-(t2-t1)ΔtisthetemperatureriseofthewindingR1istheresistanceatthebeginningofthetestR2istheresistanceattheendofthetestkisequalto234,5forcopperwindingand225foraluminumwinding;t1istheroomtemperatureatthebeginningofthetestt2istheroomtemperatureattheendofthetestForstandardprotocol,weneednotdothistest2KnowledgeofSafetyTest19BureauVeritasPresentation_Date(5)Moisturetestapplianceshallbeproofagainsthumidconditionsthatmaybeoccurinnormaluse.thehumiditytestiscarriedoutfor48hinahumiditycabinetcontainingairwitharelativehumidityof(93+-3%).thetemperatureoftheairismaintainedwithin1kofanyconvenientvaluebetween20ºCand30ºC.beforebeingplacedinthehumiditycabinet,theapplianceisboughttoatemperatureofttot+4ºCForstandardprotocol,weneednotdothistest2KnowledgeofSafetyTest20BureauVeritasPresentation_Date(6)MechanicaltestApplianceshallhaveadequatemechanicalstrengthandbeconstructedtowithstandsuchroughhandlingthatmaybeexpectedinnormaluse.Applianceisrigidlysupportedandthreeblowsareappliedtoeverypointoftheenclosurethatislikelytobeweakwithanimpactenergyof0,5J+-0,04JAfterthetest,theapplianceshallshownodamagethatcouldimpairsafety.Forstandardprotocol,weneednotdothistest2KnowledgeofSafetyTest21BureauVeritasPresentation_Date(7)StabilitytestApplianceotherthanfixedappliancesandhand-heldappliance,intendedtobeusedonsurfacesuchasthefloororatableshallhaveadequatestabilitymaybeexpectedinnormaluse.2KnowledgeofSafetyTestChaptertitle3ConstructionrequirementinIEC60335-123BureauVeritasPresentation_Date(1)Internalwiring1.Internalwireshallavoid