UL1310培训讲义.docx
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UL1310培训讲义
Class2PowerUnits
-UL1310（5thEdition）
（DatedMay3,2005,LastReviseDateJan.31,2006）
-CAN/CSA-C22.2No.223-M91（2ndEdition）
（DatedJune1991）
Agenda（大綱）
Scope（范围）
Class2Definition（Class2定义）
KeyConstructionRequirements（结构要求重点）
•Enclosure/ProtectiveDevices/CoilInsulation/InputConnections/OutputConnections
/AccessibilityofLiveParts/SeparationofCircuits/Grounding/Spacing
（外壳/保护装置/变压器绝缘/输入连结/输出连结/带电体可接触性/线路隔离/间距）
KeyPerformanceRequirements（测试要求重点）
•ElectricalTests（电气测试）
•MechanicalTests（机构测试）
CautionMarking&Instruction（警告标示及使用说明）
RelativeSPSStandardInstruction（相关标准简介）
Scope（範圍）
IndoorandoutdooruseClass2powersuppliesandbatterychargersforuseonalternatingcurrentbranchcircuitswithamaximumpotentialof150Vtoground.
连接于对地最大电压150V的交流电源上之室内及户外用Class2电源适配器及充电器
Portabledirectplug-inunitsprovidedwith15Abladeconfigurationsforuseonnominal120or240Vbranchcircuits
Cord-andplug-connectedunitsprovidedwitha15Aor20Aattachmentplugconfiguration（构造）
Unitspermanentlyconnectedtotheinputsupply
Inputpowerdoesnotexceed660Wunderanypossibleconditionofoutputloading（最大输入功率不超过660W）
Class2Definition（Class2定义）
Class2VoltageLimitation（Class2电压限制）
VoltageTypeIndoor-useunitsOutdoor-useunits
Sinusoidal,ac30V,rms30V,rms（UL）
Non-sinusoidal,ac42.4V,peak42.4V,peak（UL）
Puredc60V（UL）60V（UL）
Non-sinusoidalacordc42.4V（CUL）42.4V（CUL）
Note:
ForACSystems-Iftheproductexceedsthe15Vrmsand21.2Vpeak;andisnotgreater30Vrmsand42.4Vpeak;
ForDCSystems-Iftheproductexceedsthe30VforcontinuousdcTheproductshallbemarkedasbelow:
US–“Class2notwet,”“Class3wet”
Canada–“Class2notwet,”“Class1wet”
Max.O/Pcurrentforinherentlylimitedunits（先天限制的）（30.1）
Circuitvoltage（Vmax）a,bacordcVolts
Max.nameplateratings
Max.o/pcurrent
（Imax）c,amperes
V-A
Amperes
0–20
Over20to30
Over30to60,dconly
5.0XVmax
100
100
5.0
100/Vmax
100/Vmax
8.0
8.0
150/Vmax
aVmax:
Maximumoutputvoltageregardlessofloadwithratedinputvoltageapplied.
bVoltagerangesshownareforsinusoidalalternatingcurrentandcontinuousdirectcurrent.Fornonsinusoidalalternatingcurrent,maximumvoltageshallnotbegreaterthan42.4voltspeak.Fordirectcurrentinterruptedatarateof10–200hertz,maximumvoltageshallnotbegreaterthan24.8volts.
cImaxismaximumoutputcurrentregardlessofload.
Themaximumoutputvolt-amperesshallnotbemorethan100volt-amperes（最大输出不得超过100VA）
Max.O/PcurrentandVAfornotinherentlylimitedunits（非先天限制的）（Cl30.2）
Circuitvoltage（Vmax）a,bacordcVolts
Max.nameplateratings
Max.o/pcurrent
（Imax）c,amperes
Max.o/pVA
（VAmax）d
Max.overcurrentprotectionrating,A
V-A
Amperes
0–20
Over20to30
Over30to60,dconly
5.0XVmax
100
100
5.0
100/Vmax
100/Vmax
1000/Vmax
1000/Vmax
1000/Vmax
250e
250
250
5.0
100/Vmax
100/Vmax
aVmaxisthemaximumoutputvoltageregardlessofloadwithratedinputvoltageapplied.
bVoltagerangesshownareforsinusoidalalternatingcurrentandcontinuousdirectcurrent.Fornonsinusoidalalternatingcurrent,maximumvoltageshallbegreaterthan42.4voltspeak.Fordirectcurrentinterruptedatarateof10–200hertz,maximumvoltageshallnotbegreaterthan24.8volts.
cImaxismaximumampereoutputregardlessofloadafteroperationasspecifiedin30.2.1.
dVAmaxismaximumvolt-ampereoutputregardlessofloadafteroperationasspecifiedin30.2.1.
eMaximumvolt-amperesis350ifmaximumcircuitvoltageis15orless.
Construction（結構）
MechanicalAssembly--DirectPlug-In（机构组立-插墙式）（Cl7.11）
MechanicalAssembly--DirectPlug-In（机构组立-插墙式）（7.16）
Determinationofperimeterofunitswithroundededges
A=5.1mmforUL（MarkingforMounting（固定件）Tab）
A=8.0mmforCUL（NoMountingTab）
Ifamountingtabbeprovided,thefollowingconditionsshallbemet:
a）Useonaor15-ampere,125-250-voltreceptacle（NEMA1-15Ror5-15Ror6-15R）;
b）Ascrew[No.6mountingscrew（3.5mmmajordiameter,32threads/inch）]isprovidedandconstructedtosecuretoaduplex（双方的）receptaclethathasacenterscrew;
c）Foraunitwithoutagroundingpin,themountingtabisconstructedtobemountedtobothgroundingandnon-groundingreceptacles;and
d）Marked“CAUTION”andthefollowingortheequivalent:
1）“RiskofElectricShock–Disconnectpowertothereceptaclebeforeinstallingorremovingtheunit.Whenremovingreceptaclecoverscrew,covermayfallacrossplugpinsorreceptaclemaybecomedisplaced;”
2）“Useonlywithduplexreceptaclehavingcenterscrew;”and
3）“Secureunitinplacebyreceptaclecoverscrew”
MetalEnclosure（金属外壳）
Indooruse:
AsheetmetalthicknessnotlessthanthatinTable8.1.ThethicknessofsheetmetalotherthansteeloraluminumshallnotbelessthatthaninTable8.1foruncoatedsteel（8.4）
Ironandsteelpartsshallbeprotectedagainstcorrosion（抗蚀）bygalvanizing（镀锌）,plating（电镀）,enameling（上釉）,orotherequivalentmeansifthecorrosion（侵蚀）ofsuchunprotectedpartsresultsinariskoffire,electricshock,orinjurytopersons（9.1）
Outdooruse:
Atype3R,3S,or4XenclosureevaluatedwithUL50（CCN:
CYIVorBGUZ）,isnotrequiredtobesubjectedtotheRainTest（56.1）
Ametallicenclosureshallbeprotectedagainstcorrosion（57.5）
Copper,bronze（青铜）,andbrass（黄铜）containingnolessthan80percentcopper,orstainlesssteelmaybeusedwithoutadditionalprotectionagainstcorrosion（57.6）
Enclosure（塑料外壳）
Indooruse:
UL:
Flammability（燃烧等级）:
Min.V-2（UL94）
CUL:
Flammability:
Min.V-1（UL94）
Resistancetoarcingproperties:
UL746C
Moistureabsorptiveproperties
Outdooruse:
Atype3R,3S,or4XenclosureevaluatedwithUL50（CCN:
CYIVorBGUZ）,isnotrequiredtobesubjectedtotheRainTest
Anenclosureofaunitshallbeconstructedtoreducetheriskofelectricshockduetoweatherexposureandshallpreventliveparts,electricalcomponents,orwiring（notidentified（鉴别）forusewhileincontactwithwater）frombecomingwet
ProtectiveDevices（保护装置）
Theprotectivedevicemaybelocatedineithertheprimaryorsecondarycircuit（可在初级或次级线路）
Typeofprotectivedevice:
Thermostat,ThermalCutoff,PositiveTemperatureCoeffecient（PTC）Resistor,NegativeTemperatureCoeffecient（NTC）Resistor,Fuse,EutecticMaterial（双合金材料）
Anprotectivedeviceshallnotopenwhendeliveringitsratedoutput（正常额定输出时,保护装置不可做动）
AprotectivedeviceforanotinherentlylimitingClass2powerunitshallnotbeoftheautomaticreclosingtype（自动恢复式）andshallberatedwithTable30.2andprovidedinsecondarycircuit
CoilInsulation（变压器线圈绝缘）
Anytypeorthicknessofinsulationmaybeusedifthecoilwithstandstheinducedpotentialtest（13.2.8.b）
Tapeusedasinsulationinlieuof（代替）spacingshallprovideacontinuous1/32inch（0.8mm）minimumwidebentupedgeagainstthebobbinflanges（使用胶带当绝缘以抵押间距要求则须提供至少0.8mm宽的反折）（13.2.3）
Aflanged,bobbin-woundtransformershallbesubjectedtotheoutputloadingtestcontinuedfor15daysifthetransformerhas:
Theprimarywindingwoundoverthesecondarywindingorthesecondarywindingwoundovertheprimarywinding;and
Theprimarywindinginsulatedfromthesecondarywindingbyalayerofinsulatingmaterialotherthancoilform/bobbin
Thetestisnotrequiredtobeappliedfor15daysifthefollowingrequirementsaremet:
MultiplelayeredwindingwireUL746A,UL746B,UL746C
MeetspacingrequirementTable24.1,Table24.2
AlternatespacingUL840
TripleinsulatedwiringSubject2353（OBJT2）
InputConnection（输入连结）
MultipleVoltageRatedPowerUnit（多输入电压电源适配器）
Definition（定义）:
Apowerunitwitharatedvoltagerange（suchas100–240volts）ormorethanonediscretevoltagerating（suchas120/240volts）
IntendedforUseByTravellers（旅行者用电源适配器）
Definition（定义）:
（14.1.4）
Amultiplevoltagerateddirectplug-inpowerunitwitha125V,15A（parallel）inputbladeconfiguration,oramultiplevoltageratedcord-connectedpowerunitwithanon-detachablepowersupplycordterminatingina125V,15A（parallel）bladeplug
RequirementsforIntendedforUseByTravellers（旅行者用电源适配器的要求）:
（14.1.4）
a）Thebladeassemblyshallbea125volt,15ampconfiguration（构造）;
b） Thepowerunitshallemployauseradjustable（可调整的）voltageselectorandcomplywithSwitchPositionTest,orbecapableofoperatingatdifferentvoltageswithoutuseradjustment;
c） Theinputvoltageratingshallincludenominal120volt;
d） Thepowerunitshallbemarkedasspecifiedin51.8;and
e） Thepowerunitshallbeprovidedwithinstructionsasspecifiedin54.4
Amultiplevoltageratedpowerunitintendedforusebytravelersshallbemarkedasfollowswiththefollowingorequivalent:
（51.8）
a）"SeeinstructionmanualforuseincountriesotherthantheU.S.A."or
b）“Seeinstructionsforinputvoltageconversion.”or
c）“Seeinstructionsiftheinputplugdoesnotfitthepoweroutlet”
Instructionsshallinclude（a）-（c）ortheequivalent,asappropriate.Theitemsshallbeprecededby"IMPORTANTSAFETYINSTRUCTIONS-SAVETHESEINSTRUCTIONS"and"DANGER-TOREDUCETHERISKOFFIREORELECTRICSHOCK,CAREFULLYFOLLOWTHESEINSTRUCTIONS"inlettersof1/8inch（3.18mm）highorinareadilyvisiblecontrastingtext（54.4）
a）"Besurevoltageselectorisincorrectvoltagepositionbeforepluggingin."Theinstructionsshallalsospecifytheprocedurestofollowforchangingthevoltageselector
b）"ForuseintheU.S.A.,thevoltages
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