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OCTOBER2,2009−UL2202tr1ULStandardforSafetyforElectricVehicle(EV)ChargingSystemEquipment,UL2202SecondEdition,DatedOctober2,2009
SUMMARYOFTOPICSThisNewEditionofANSI/UL2202includesthefollowing:1.Deletionofexceptionto4.1.2thatallowstheuseoftheframeorchassisasaconductivepathduringnormaloperation2.Revisionto11.4.2.1forcordtypesthatcanbeusedwithchargingunits3.Revisionto11.5.1.2thatprohibitstheuseofaknotinthesupplycordasameansofstrainrelief4.Deletionofexceptionin13.4and13.5regardingexternalconnectionsandwiring5.RevisionstoSections81-84regardingoutdoor,fixedunitstoincludeon-boardchargingequipment6.Miscellaneousrevisionsassociatedwithclarifications,corrections,referenceupdates,andformattingTextthathasbeenchangedinanymannerorimpactedbyUL’selectronicpublishingsystemismarkedwithaverticallineinthemargin.Changesinrequirementsaremarkedwithaverticallineinthemarginandarefollowedbyaneffectivedatenoteindicatingthedateofpublicationorthedateonwhichthechangedrequirementbecomeseffective.
Thefollowingtableliststhefutureeffectivedateswiththecorrespondingreference.
FutureEffectiveDateOctober3,2011
Reference
Paragraphs11.4.2.1,11.5.1.2,13.4,13.5,81.2
ThenewrequirementsaresubstantiallyinaccordancewithProposal(s)onthissubjectdatedJuly3,2009.Allrightsreserved.Nopartofthispublicationmaybereproduced,storedinaretrievalsystem,ortransmittedinanyformbyanymeans,electronic,mechanicalphotocopying,recording,orotherwisewithoutpriorpermissionofUL.
ULprovidesthisStandard″asis″withoutwarrantyofanykind,eitherexpressedorimplied,includingbutnotlimitedto,theimpliedwarrantiesofmerchantabilityorfitnessforanypurpose.
InnoeventwillULbeliableforanyspecial,incidental,consequential,indirectorsimilardamages,includinglossofprofits,lostsavings,lossofdata,oranyotherdamagesarisingoutoftheuseofortheinabilitytousethisStandard,evenifULoranauthorizedULrepresentativehasbeenadvisedofthepossibilityofsuchdamage.InnoeventshallUL’sliabilityforanydamageeverexceedthepricepaidforthisStandard,regardlessoftheformoftheclaim.
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tr2OCTOBER2,2009−UL2202UsersoftheelectronicversionsofUL’sStandardsforSafetyagreetodefend,indemnify,andholdULharmlessfromandagainstanyloss,expense,liability,damage,claim,orjudgment(includingreasonableattorney’sfees)resultingfromanyerrorordeviationintroducedwhilepurchaserisstoringanelectronicStandardonthepurchaser’scomputersystem.
TherequirementsinthisStandardarenowineffect,exceptforthoseparagraphs,sections,tables,figures,and/orotherelementsoftheStandardhavingfutureeffectivedatesasindicatedinthenotefollowingtheaffecteditem.ThepriortextforrequirementsthathavebeenrevisedandthathaveafutureeffectivedatearelocatedaftertheStandard,andareprecededbya″SUPERSEDEDREQUIREMENTS″notice.
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OCTOBER2,2009
1UL2202
StandardforElectricVehicle(EV)ChargingSystemEquipment
FirstEdition–November,1998
SecondEditionOctober2,2009
ThisANSI/ULStandardforSafetyconsistsoftheSecondEdition.
ThemostrecentdesignationofANSI/UL2202asanAmericanNationalStandard(ANSI)occurredonOctober1,2009.ANSIapprovalforastandarddoesnotincludetheCoverPage,TransmittalPages,TitlePage,oreffectivedateinformation.
CommentsorproposalsforrevisionsonanypartoftheStandardmaybesubmittedtoULatanytime.ProposalsshouldbesubmittedviaaProposalRequestinUL’sOn-LineCollaborativeStandardsDevelopmentSystem(CSDS)athttp://csds.ul.com.
UL’sStandardsforSafetyarecopyrightedbyUL.NeitheraprintednorelectroniccopyofaStandardshouldbealteredinanyway.AllofUL’sStandardsandallcopyrights,ownerships,andrightsregardingthoseStandardsshallremainthesoleandexclusivepropertyofUL.
COPYRIGHT©2009UNDERWRITERSLABORATORIESINC.
ANSI/UL2202-2009
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OCTOBER2,2009ELECTRICVEHICLE(EV)CHARGINGSYSTEMEQUIPMENT-UL22023CONTENTS
INTRODUCTION
1Scope...............................................................................72Glossary.............................................................................73General.............................................................................10
3.1Components..................................................................103.2Unitsofmeasurement..........................................................113.3References...................................................................11CONSTRUCTION
4FrameandEnclosure................................................................11
4.1General......................................................................114.2Accesscovers................................................................124.3Castmetalenclosures.........................................................124.4Sheetmetalenclosures........................................................134.5Nonmetallicenclosures.........................................................154.6Glasscoveredopenings........................................................164.7Openingsforwiring............................................................164.8Openingsinanenclosure......................................................184.9Enclosurebottomopenings.....................................................184.10Enclosuretopopenings.......................................................215ProtectionofUsers–AccessibilityofUninsulatedLiveParts,Film-CoatedWire,andMovingParts–andUserServicing.................................................................215.1General......................................................................215.2Userservicing.................................................................296ElectricShock.......................................................................29
6.1Personnelprotectionsystems...................................................296.2Storedenergy.................................................................297Mounting............................................................................318CorrosionProtection.................................................................329MechanicalAssembly................................................................3210SwitchesandControls...............................................................3311SupplyConnections.................................................................35
11.1Fixedunits..................................................................3511.2Openingsforconduitorcableconnection.......................................3811.3OpeningsforClass2circuitconductors.........................................3911.4Cord-connectedunits.........................................................3911.5Strainrelief..................................................................4011.6Bushings....................................................................4011.7Identification.................................................................4012WireBendingSpace................................................................4113ExternalConnectionsandWiring.....................................................4514EVBonding........................................................................4615EquipmentGrounding...............................................................46
15.1Inputcircuits.................................................................4616BondingofInternalParts............................................................4817OutputCircuitInsulationforInductivelyCoupledUnits...................................5018InternalWiring......................................................................50
18.1Wires.......................................................................50
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4ELECTRICVEHICLE(EV)CHARGINGSYSTEMEQUIPMENT-UL2202OCTOBER2,200919
2021
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26
27
282930313233343536
18.2Protectionofwiring...........................................................51Current-CarryingParts..............................................................5219.1General.....................................................................5219.2Busbars....................................................................5219.3Liveheatsinks...............................................................55ElectricalConnections...............................................................55Spacings..........................................................................5621.1General.....................................................................5621.2Insulationbarriers............................................................59AlternateSpacings–ClearancesandCreepageDistances..............................60ControlCircuits.....................................................................61AccessibleSignalCircuits............................................................62Transformers.......................................................................6325.1General.....................................................................6325.2Coilinsulation................................................................64SeparationofCircuits...............................................................6626.1Factorywiring................................................................6626.2Separationbarriers...........................................................6726.3Fieldwiring..................................................................67OvercurrentProtection..............................................................6827.1General.....................................................................6827.2Controlcircuits...............................................................69Motors.............................................................................70Capacitors.........................................................................71Resistors..........................................................................72Lampholders.......................................................................72PrintedWiringBoards...............................................................72InsulatingMaterials.................................................................73Adhesives.........................................................................73ProtectionofServicePersonnel......................................................74ElectronicProtectionCircuits.........................................................75
PROTECTIONOFUSERSAGAINSTINJURY
373839404142434445
General............................................................................76SharpEdges.......................................................................77EnclosuresandGuards..............................................................77Materials...........................................................................78Impact–GuardsOverMovingParts..................................................78DropTest..........................................................................78Stability............................................................................78StaticLoadTest....................................................................79StrengthofHandles.................................................................79
PERFORMANCE
464748495051
General............................................................................79LeakageCurrentTest...............................................................80LeakageCurrentTestFollowingHumidityConditioning..................................84PowerInputTest...................................................................84TemperatureTest...................................................................85DielectricVoltage-WithstandTest.....................................................9051.1General.....................................................................90
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OCTOBER2,2009ELECTRICVEHICLE(EV)CHARGINGSYSTEMEQUIPMENT-UL220255253
5455
56575859606162
6364
6566676869707172
51.2Maximum-voltagemeasurements...............................................9051.3ACandDCpowercircuits.....................................................9051.4Secondarycircuits............................................................9151.5Inducedpotential.............................................................92Volt-AmpereCapacityMeasurement..................................................92AbnormalTests.....................................................................9353.1General.....................................................................9353.2Transformerburnouttest......................................................9453.3Transformeroverloadtest.....................................................9653.4Shortcircuittest..............................................................9753.5Overchargetest..............................................................9853.6Capacitorfaulttest...........................................................9853.7Forcedventilationtest........................................................9853.8Componentshort-andopen-circuittest.........................................9953.9Electrolyticcapacitorfaulttest.................................................9953.10Vibrationtest...............................................................99FlangedBobbinTransformerAbnormalTest..........................................100StrainReliefTests.................................................................10255.1General....................................................................10255.2Strainrelief–pulltest.......................................................10255.3Strainrelief–pushbacktest.................................................103Flexing...........................................................................103GroundingImpedanceTest.........................................................103OvercurrentProtectionCalibrationTest...............................................104StrengthofTerminalInsulatingBaseandSupportTest.................................104BondingConductorTest............................................................105ImpactonGlassCoveredOpenings.................................................106EvaluationofReducedSpacingsonPrinted-WiringBoards.............................10662.1General....................................................................10662.2Shortedtracetest...........................................................106HeatSinkTemperatureCyclingTest.................................................106TestsforPermanenceofCordTag..................................................10764.1General....................................................................10764.2Testconditions.............................................................10764.3Testmethod................................................................108TestsonTransformerInsulatingMaterials............................................108BusBarTests.....................................................................108HarmonicDistortionTest...........................................................109Impact–GuardsOverMovingPartsTest.............................................110DropTest.........................................................................110StabilityTests.....................................................................111StaticLoadTest...................................................................111StrengthofHandlesTest...........................................................112
RATINGS
73Details...........................................................................112
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6ELECTRICVEHICLE(EV)CHARGINGSYSTEMEQUIPMENT-UL2202OCTOBER2,2009MARKING
74Details...........................................................................112
74.1General....................................................................11274.2Content....................................................................11374.3Cautionarymarkings.........................................................117INSTRUCTIONS
757677787980
InstructionManual.................................................................121ImportantSafetyInstructions........................................................121AssemblyInstructions..............................................................128OperatingInstructions..............................................................128MaintenanceInstructions...........................................................128MovingandStorageInstructions.....................................................128
OUTDOOR-USEUNITSANDON-BOARDUNITS
81General..........................................................................12982Construction......................................................................12983Performance......................................................................131
83.1Raintest...................................................................13183.2Acceleratedagingtests......................................................13583.3Metalliccoatingthickness....................................................13584Marking..........................................................................137
APPENDIXA
StandardsforComponents..............................................................A1
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OCTOBER2,2009ELECTRICVEHICLE(EV)CHARGINGSYSTEMEQUIPMENT-UL22027INTRODUCTION1Scope
1.1Theserequirementscoverconductiveandinductivechargingsystemequipmentintendedtobesuppliedbyabranchcircuitof600voltsorlessforrechargingthestoragebatteriesinover-the-roadelectricvehicles(EV).Theequipmentislocatedon-oroff-boardthevehicle.Off-boardequipmentmaybeconsideredforindooruseonly.TheequipmentisintendedtobeinstalledinaccordancewiththeNationalElectricalCode,NFPA70.
1.2Forthepurposesofthisstandard,theterm“electricvehicle”,designatedthroughoutbytheinitials“EV”,isconsideredtocoverelectricvehicles,hybridelectricvehicles,andplug-inversionsofthesevehicles.
1.3Electricvehiclechargingsystemequipmentthatisnotacompleteassemblyanddependsuponinstallationinanendproductforcompliancewiththerequirementsinthisstandardisinvestigatedundertherequirementsofthisstandardandthestandardfortheendproduct.
1.4TheserequirementsdonotcoverbatterychargerscoveredbytheStandardforBatteryChargersforChargingEngine-StarterBatteries,UL1236,ortheStandardforIndustrialBatteryChargers,UL1564.1.5TherequirementsfordevicesorsystemsintendedtoreducetheriskofelectricshocktotheuseringroundedorisolatedcircuitsforchargingelectricvehiclesarecoveredintheStandardforPersonnelProtectionSystemsforElectricVehicle(EV)SupplyCircuits;Part1:GeneralRequirements,UL2231-1,andtheStandardforPersonnelProtectionSystemsforElectricVehicle(EV)SupplyCircuits;Part2:ParticularRequirementsforProtectiveDevicesforUseinChargingSystems,UL2231-2.2Glossary
2.1Inthetextofthisstandard,theterm“unit”referstoanyproductcoveredbythisstandard.Theletters“EV”referstoanelectricvehicle,ahybridelectricvehicle,orplug-inversionsofthesevehiclesinaccordancewith1.2.Forthepurposeofthisstandard,thedefinitionsin2.2–2.37apply.2.2ACCESSIBLE–Abletobecontactedbyanaccessibilityprobe.
2.3BARRIER–Apartinsideanenclosurethatreducesaccesstoapartthatinvolvesariskoffire,electricshock,injurytopersons,orelectricalenergy–highcurrentlevels.
2.4BATTERY,VALVE-REGULATED–Abatteryinwhichtheventingoftheproductsofelectrolysisiscontrolledbyareclosingpressure-sensitivevalve.
2.5BATTERY,VENTED–Abatteryinwhichtheproductsofelectrolysisandevaporationareallowedtoescapefreelytotheatmosphere.
2.6BRANCHCIRCUIT–Theportionofthebuildingwiringsystembeyondthefinalovercurrent
protectivedeviceonthepower-distributionpanelthatprotectsthecircuittothefield-wiringterminalsinapermanentlyconnectedunitortothereceptacleoutletforacord-connectedunit.
2.7CELL–Twoelectrodesofdissimilarmaterialseparatedfromoneanotherbyacommonionicallyconductiveelectrolyte,thatareintendedtoconvertchemicalenergydirectlyintoelectricalenergy.2.8CLASS2TRANSFORMER–Astep-downtransformercomplyingwiththeapplicablerequirementsin:
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8ELECTRICVEHICLE(EV)CHARGINGSYSTEMEQUIPMENT-UL2202OCTOBER2,2009a)TheStandardforLowVoltageTransformers,Part1:GeneralRequirements,UL5085-1,andtheStandardforLowVoltageTransformers,Part3:Class2andClass3Transformers,UL5085-3,or
b)TheStandardforClass2PowerUnits,UL1310.
2.9CONTROLCIRCUIT–Acircuitthatcarrieselectricsignalsbutnotmainpowercurrent.2.10DOUBLEINSULATION–Aninsulationsystemcomprisedofbothbasicinsulationandsupplementaryinsulation.
2.11ELECTRICVEHICLE(EV)–Anover-the-roadautomotive-typevehicleforhighwayuse,suchasapassengerautomobile,bus,truck,van,orsimilarvehicle,whichreceivesprimaryorsupplementarypowerfromanelectricmotorthatdrawscurrentfromarechargeablestoragebattery.Thistermisusedtocoverelectricvehicles,hybridelectricvehiclesandplug-inversionsofthesevehiclesinaccordancewith1.2.
2.12ELECTROLYTE–Asemisolid,liquid,oraqueoussaltsolutionthatmakesionicconductionbetweenpositiveandnegativeelectrodesofacellpossible.
2.13ENCLOSURE–Thatportionofaunitthatreducestheaccessibilityofapartthatinvolvesariskoffire,electricshockorinjurytopersons,orreducestheriskofpropagationofflame,sparks,andmoltenmetalinitiatedbyanelectricaldisturbanceoccurringwithin.
2.14EXPOSED–Visibleandabletobecontactedbyanaccessibilityprobe.
2.15FIELD-WIRINGLEAD–Anyleadtowhichasupply,load,orotherwireisintendedtobeconnectedbyaninstaller.
2.16FIELD-WIRINGTERMINAL–Aterminaltowhichasupply,load,orotherwireisintendedtobeconnectedbyaninstaller.
2.17FIXEDUNIT–Aunitthatisintendedtobepermanentlyconnectedelectrically.
2.18GUARD–Apartthatreducesaccesstoacomponentthatresultsinariskofinjurytopersons.SeeEnclosuresandGuards,Section39.
2.19LEAKAGECURRENT–Electriccurrentwhichflowsthroughapersonuponcontact,betweenaccessiblepartsofaunitand:
a)Ground,or
b)Otheraccessiblepartsoftheunit.
2.20LIMITED-ENERGYCIRCUIT–Anacordccircuithavingavoltagenotexceeding1000voltsandtheenergylimitedto100volt-amperesbyeitherasecondarywindingofatransformer,oneormoreresistorscomplyingwith23.10,oraregulatingnetworkcomplyingwith23.11.
2.21LIVEPART–Aconductivepart,suchasmetal,withintheunitthatduringintendedusehasapotentialdifferencewithrespecttoearthgroundoranyotherconductivepart.
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OCTOBER2,2009ELECTRICVEHICLE(EV)CHARGINGSYSTEMEQUIPMENT-UL220292.22LOW-VOLTAGE,LIMITED-ENERGY(LVLE)CIRCUIT–Acircuitinvolvinganalternatingcurrentvoltageofnotmorethan30volts,rms(42.4voltspeak)oradirectcurrentvoltageofnotmorethan60voltsandsuppliedby:
a)AninherentlylimitedClass2transformerorpowerunitoranotinherentlylimitedClass2transformerorpowerunitandanovercurrentprotectivedevicethatis:
1)Notoftheautomaticreclosingtype,2)Trip-freefromthereclosingmechanism,and
3)Eithernotreadilyinterchangeablewithadeviceofadifferentratingoramarkinginaccordancewith74.3.8isprovided;or
b)Acombinationofanisolatedtransformersecondarywindingandoneormoreresistorsoraregulatingnetworkcomplyingwith23.11thatcomplieswithalltheperformancerequirementsforaninherentlylimitedClass2transformerorpowersource.
2.23MEASUREMENTINDICATIONUNIT(MIU)–Theoutputvoltageacrossthemeter,inmillivoltsrms,inthemeasurementinstrumentinFigure47.3,dividedby500ohms.(Theinstrumentindicationisequaltothermsvalueinmilliampereswhenthefrequencyis60Hz(sinusoidalcurrent).Thereadingisnotalwaysadirectindicationofthermsorothercommonamplitudequantifierofleakagecurrentwhentheleakagecurrentisofcomplexwaveformorfrequencyotherthan50or60Hz.)
2.24MULTI-CELLBATTERY–Abatteryconsisting,internally,ofaseriesorparallelarrayoftwoormorecells.
2.25PORTABLEUNIT–Aunitthathasnoprovisionsforpermanentmountingorwiring,andiseasilycarriedorconveyedbyhandandwhoseinputratingdoesnotexceed16ampere,120Vac.
2.26PRESSURETERMINALCONNECTOR–Afieldwiringterminalthataccomplishestheconnectionofoneormoreconductorsbymeansofpressurewithouttheuseofsolder.Examplesofpressure
terminalconnectorsarebarrelandsetscrewtype,crimp-typebarrel,andclampingplateandscrewtype.2.27PRIMARYCIRCUIT–Wiringandcomponentsthatareconductivelyconnectedtoabranchcircuit.
2.28PRIMARYSOURCE–Thebranchcircuittowhichtheacinputoftheunitisconnected.
2.29REINFORCEDINSULATION–Asingleinsulationsystemwithsuchmechanicalandelectricalqualitiesthatit,initself,providesthesamedegreeofprotectionagainsttheriskofelectricshockasdoesdoubleinsulation.Theterm“singleinsulationsystem”doesnotrequirethattheinsulationmustbeinonehomogeneouspiece.Theinsulationsystemcomprisestwoormorelayersthatshallnotbetestedassupplementaryorbasicinsulation.
2.30RISKOFELECTRICALENERGY–HIGHCURRENTLEVELS–Thecapabilityfordamagetopropertyorinjurytopersons,otherthanbyelectricshock,fromavailableelectricalenergyexistswhenbetweenalivepartandanadjacentdeadmetalpartorbetweenlivepartsofdifferentpolarity,thereexistsapotentialof2voltsormoreandeitheranavailablecontinuouspowerlevelof240volt-amperesormore,orareactiveenergylevelof20joulesormore.Forexample,atool,orothermetalshort-circuitingacomponentcausesariskofaburnorafirewhenenoughenergyisavailableatthecomponenttovaporize,melt,ormorethanwarmthemetal.
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10ELECTRICVEHICLE(EV)CHARGINGSYSTEMEQUIPMENT-UL2202OCTOBER2,20092.31RISKOFELECTRICSHOCK–AsdefinedintheStandardforPersonnelProtectionSystemsforElectricVehicle(EV)SupplyCircuits;PartI:GeneralRequirements,UL2231.
2.32RISKOFFIRE–Ariskoffireisdeterminedtoexistatanycomponentunlessaninvestigationofthesupplydeliveringpowertothatcomponentcomplieswiththecriteriain23.4–23.12.
2.33SAFETYCIRCUIT–Anyprimaryorsecondarycircuitthatisusedtoreducetheriskoffire,electricshock,injurytopersons,orelectricalenergy–highcurrentlevels.Forexample,insomeapplications,aninterlockcircuitisconsideredtobeasafetycircuit.
2.34SAFETYINTERLOCK–Ameansusedtoreducetheaccessibilitytoanareathatresultsinariskofelectricshock,electricalenergy–highcurrentlevels,orinjurytopersonsuntiltheriskhasbeenremoved,ortoautomaticallyremovetheriskwhenaccessisgained.
2.35SECONDARYCIRCUIT–Acircuitsuppliedfromasecondarywindingofanisolatingtransformer.See25.1.3.
2.36SERVICEPERSONNEL–Trainedpersonshavingfamiliaritywiththeconstructionandoperationoftheequipmentandtherisksinvolved.
2.37TOOL–Ascrewdriver,coin,key,oranyotherobjectthatisusedtooperateascrew,latch,orsimilarfasteningmeans.3General3.1Components
3.1.1Exceptasindicatedin3.1.2,acomponentusedasapartofaunitcoveredbythisstandardshallcomplywiththerequirementsforthatcomponent.SeeAppendixAforalistofstandardscoveringcomponentsgenerallyusedintheunitscoveredbythisstandard.
3.1.2Acomponentisnotrequiredtocomplywithaspecificrequirementthat:
a)Involvesafeatureorcharacteristicnotrequiredintheapplicationofthecomponentintheproductcoveredbythisstandard,or
b)Issupersededbyarequirementinthisstandard.
3.1.3Acomponentshallbeusedinaccordancewithitsratingestablishedfortheintendedconditionsofuse.
3.1.4Specificcomponentsareincompleteinconstructionfeaturesorrestrictedinperformancecapabilities.Suchcomponentsareintendedforuseonlyunderlimitedconditions,suchascertaintemperaturesnotexceedingspecifiedlimits,andshallbeusedonlyunderthosespecificconditions.
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OCTOBER2,2009ELECTRICVEHICLE(EV)CHARGINGSYSTEMEQUIPMENT-UL2202113.2Unitsofmeasurement
3.2.1Valuesstatedwithoutparenthesesaretherequirement.Valuesinparenthesesareexplanatoryorapproximateinformation.3.3References
3.3.1Anyundatedreferencetoacodeorstandardappearingintherequirementsofthisstandardshallbeinterpretedasreferringtothelatesteditionofthatcodeorstandard.CONSTRUCTION4FrameandEnclosure4.1General
4.1.1Aunitshallbeprovidedwithoneormoreenclosuresthathouseallliveparts.Theenclosureshallprotectthevariouspartsoftheunitagainstmechanicaldamagefromforcesexternaltotheunit.Thepartsoftheenclosurethatarerequiredtobeinplacetocomplywiththerequirementsforriskoffire,electricshock,injurytopersons,andelectricalenergy–highcurrentlevelsshallcomplywiththeapplicableenclosurerequirementsspecifiedinthisstandard.
Exception:Liveparts,includingterminals,whichdonotpresentariskofelectricshockorariskofelectricalenergy–highcurrentlevels,arenotrequiredtobeenclosed.4.1.2Theframeorchassisofaunitshallnotbeusedtocarrycurrentduringintendedoperation.4.1.3Apart,suchasadial,displayface,ornameplate,thatservesasafunctionalpartoftheenclosureshallcomplywiththeenclosurerequirements.
4.1.4Whenanelectricalinstrument,suchasameter,formspartoftheenclosure,thefaceorthebackoftheinstrumenthousing,orbothtogether,shallcomplywiththerequirementsforanenclosure.
Exception:AmetercomplyingwiththerequirementsintheStandardforElectricalAnalogInstruments–PanelboardTypes,UL1437,isnotrequiredtocomply.4.1.5Acomponentofafixedunit,thatproducesarcsorsparks,suchasasnapswitch,arelay,orareceptacle,shallbelocatedatleast18inches(457mm)abovethefloor.Aportableunitcontainingcomponentsthatproducearcingorsparkingsuchasasnapswitch,relayreceptacleorsimilardeviceshallbemarkedinaccordancewith74.3.12.
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12ELECTRICVEHICLE(EV)CHARGINGSYSTEMEQUIPMENT-UL2202OCTOBER2,20094.2Accesscovers
4.2.1Anaccesscovershallbehingedwhereitgivesaccesstoafuseorotheroverload-protectivedevice,thefunctioningofwhichrequiresrenewalorresetting,orwhereitisrequiredtoopenthecoverinconnectionwithintendedoperationoftheunit.Ameansshallbeprovidedtoholdthecoverpositivelyclosed.
Exception:Ahingedcoverisnotrequiredwhentheonlyoverload-protectivedeviceenclosedis:a)Connectedinacontrolcircuit,wheretheprotectivedeviceandthecircuitloadsarewithinthesameenclosure,b)Rated2amperesorlessforloadsnotexceeding100volt-amperes,c)Anextractorfusehavinganintegralenclosure,ord)Connectedinalow-voltage,limited-energycircuit.4.2.2Adoororcovergivingaccesstoafuseshallbetight-fitting.4.3Castmetalenclosures
4.3.1ThethicknessofcastmetalforanenclosureshallbeasspecifiedinTable4.1.
Exception:Die-castmetalandcastmetalofalesserthicknessisemployedwhenuponinvestigation(takenintoaccounttheshape,size,andfunctionoftheenclosure)itisfoundtohaveequivalentmechanicalstrengthfortheintendeduse.Table4.1
Thicknessofcast-metalenclosures
Minimumthickness,inch(mm)
Use,ordimensionofareainvolved
Areaof24squareinches(154.8cm2)orlessandhavingnodimensiongreaterthan6inches(152mm)
Areagreaterthan24squareinches(154.8cm2)orhavinganydimensiongreaterthan6inches(152mm)AtathreadedconduitholeAtanunthreadedconduithole
Die-castmetal1/16a
(1.6)
Castmetalofotherthanthe
die-casttype
1/8
(3.2)
3/32(2.4)1/8(3.2)
1/41/8
(6.4)(3.2)
1/41/8
(6.4)(3.2)
aThearealimitationformetal1/16inch(1.6mm)thickisobtainedbytheprovisionofreinforcingribssubdividingalargerarea.
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OCTOBER2,2009ELECTRICVEHICLE(EV)CHARGINGSYSTEMEQUIPMENT-UL2202134.4Sheetmetalenclosures
4.4.1SheetmetalenclosuresshallcomplywiththerequirementsintheStandardforEnclosuresforElectricalEquipment,UL50,or4.4.2.
4.4.2Withreferenceto4.4.1,thethicknessofasheet-metalenclosureshallnotbelessthanthatspecifiedinTables4.2and4.3.Uncoatedsteelshallnotbelessthan0.032inch(0.81mm)thick,zinc-coatedsteelshallnotbelessthan0.034inch(0.86mm)thick,andnonferrousmetalshallnotbelessthan0.045inch(1.14mm)thickforsurfacesofanenclosureatwhichawiringsystemistobeconnected.
Exception:ApartoftheenclosurethatcomplieswiththeMechanicalStrengthTestsforMetalEnclosuresasspecifiedintheStandardforPowerUnitsOtherThanClass2,UL1012,isrequiredtocomplywiththethicknessspecifiedinTables4.2and4.3Table4.2
Thicknessofcarbonsteelorstainlesssteelenclosures
Withsupportingframeorequivalent
reinforcingaMaximumwidth,binches6.256.759.510.012.013.019.521.027.029.033.035.039.041.051.054.064.068.080.084.097.0103.0
(cm)(15.9)(17.1)(24.1)(25.4)(30.5)(33.0)(49.5)(53.3)(68.6)(73.7)(83.8)(88.9)(99.1)(104.1)(129.5)(137.2)(162.6)(172.7)(203.2)(213.4)(246.4)(261.6)
Maximumlength,inches8.2512.5
(cm)(21.0)
0.026d0.0320.0420.0530.0600.0670.0800.0930.1080.123
(0.66)(0.81)(1.07)(1.35)(1.52)(1.70)(2.03)(2.36)(2.74)(3.12)
0.029d0.0340.0450.0560.0630.0700.0840.0970.1110.126
(0.74)(0.86)(1.14)(1.42)(1.60)(1.78)(2.13)(2.46)(2.82)(3.20)
(31.8)
Uncoated0.020d
(0.51)
Metalcoated0.023d
(0.58)
Withoutsupportingframea
Maximumwidth,binches4.04.756.07.08.09.012.514.018.020.022.025.025.029.033.038.042.047.052.060.063.073.0
ab
Minimumthicknessinch(mm)
Maximumlength,cinches5.758.75
(cm)(14.6)(22.2)
(cm)(10.2)(12.1)(15.2)(17.8)(20.3)(22.9)(31.8)(35.6)(45.7)(50.8)(55.9)(63.5)(63.5)(73.7)(83.8)(103.4)(106.7)(119.4)(132.1)(152.4)(160.0)(185.4)
NotlimitedNotlimitedNotlimited11.5(29.2)Notlimited18.0(45.7)Notlimited25.0(63.5)Notlimited31.0(78.7)Notlimited36.0(91.4)Notlimited47.0(119.4)Notlimited59.0(149.9)Notlimited74.0(188.0)Notlimited90.0(228.6)
NotlimitedNotlimitedNotlimited
16.0(40.6)Notlimited25.0(63.5)Notlimited36.0(91.4)Notlimited43.0(109.2)Notlimited51.0(129.5)Notlimited66.0(167.6)Notlimited84.0(213.4)Notlimited103.0(261.6)Notlimited127.0(322.6)
See4.4.4and4.4.5.
Thewidthisthesmallerdimensionofarectangularsheetmetalpiecethatispartofanenclosure.Adjacentsurfacesofanenclosuremayhavesupportsincommonandbemadeofasinglesheet.
“Notlimited”appliesonlywhentheedgeofthesurfaceisflangedatleast1/2inch(12.7mm)orfastenedtoadjacentsurfacesnotnormallyremovedinuse.
c
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14ELECTRICVEHICLE(EV)CHARGINGSYSTEMEQUIPMENT-UL2202OCTOBER2,2009Table4.2Continued
Withsupportingframeorequivalent
reinforcingaMaximumwidth,binches
(cm)
Maximumlength,inches
(cm)
Uncoated
Metalcoated
Withoutsupporting
Maximumwidth,binches
d
framea
Minimumthicknessinch(mm)
Maximumlength,cinches
(cm)
(cm)
Sheetsteelforanenclosureintendedforoutdooruseshallnotbelessthan0.034inch(0.86mm)thickwhenmetalcoatedandnotlessthan0.032inch(0.81mm)thickwhenuncoated.
Table4.3
Thicknessofaluminum,copper,orbrassenclosures
Withoutsupportingframea
Maximumwidthbinches3.03.54.05.06.06.58.09.512.014.018.020.025.029.037.042.052.060.0
a
WithsupportingframeorequivalentreinforcingaMaximumwidthbinches(cm)7.08.510.010.514.015.019.021.028.030.042.045.060.064.087.093.0123.0130.0
(17.8)(21.6)(25.4)(26.7)(35.6)(38.1)(48.3)(53.3)(71.1)(76.2)(106.7)(114.3)(152.4)(162.6)(221.0)(236.2)(312.4)(330.2)
9.5
Maximumlengthinches(cm)
Notlimited
(24.1)
Notlimited13.5(34.3)
Notlimited18.0(45.7)
Notlimited25.0(63.5)
Notlimited37.0(94.0)
Notlimited55.0(139.7)
Notlimited78.0(198.1)
Notlimited114.0(289.6)
Notlimited160.0(406.4)
(cm)(7.6)(8.9)(10.2)
(12.7)(15.2)(16.5)(20.3)(24.1)(30.5)(35.6)(45.7)(50.8)(63.4)(73.7)(94.0)(106.7)(132.1)(152.4)
Maximumlengthcinches(cm)
Notlimited4.0
(10.2)
Notlimited6.0(15.2)
Notlimited8.0(20.3)
Notlimited11.5(29.2)
Notlimited16.0(40.6)
Notlimited25.0(63.4)
Notlimited36.0(91.4)
Notlimited53.0(134.6)
Notlimited74.0(188.0)
Minimum
thicknessinches(mm)0.023d(0.58)0.029(0.74)0.036(0.91)0.045(1.14)0.058(1.47)0.075(1.91)0.095(2.41)0.122(3.10)0.153(3.89)
See4.4.4and4.4.5.
bThewidthisthesmallerdimensionofarectangularsheetmetalpiecethatispartofanenclosure.Adjacentsurfacesofanenclosuremayhavesupportsincommonandbemadeofasinglesheet.
“Notlimited”appliesonlywhentheedgeofthesurfaceisflangedatleast1/2inch(12.7mm)orfastenedtoadjacentsurfacesnotnormallyremovedinuse.
dc
Sheetcopper,brass,oraluminumforanenclosureintendedforoutdooruseshallnotbelessthan0.029inch(0.74mm)thick.
4.4.3Tables4.2and4.3arebasedonauniformdeflectionoftheenclosuresurfaceforanygivenloadconcentratedatthecenterofthesurfaceregardlessofmetalthickness.
4.4.4WithreferencetoTables4.2and4.3,asupportingframeisastructureofangleorchannelorafoldedrigidsectionofsheetmetalthatisrigidlyattachedtoandhasthesameoutsidedimensionsastheenclosuresurfaceandthathasthetorsionalrigiditytoresistthebendingmomentsthatareappliedviatheenclosuresurface.Aconstructionhasequivalentreinforcementwhenitproducesastructurethatisasrigidasonebuiltwithaframeofanglesorchannels.
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OCTOBER2,2009ELECTRICVEHICLE(EV)CHARGINGSYSTEMEQUIPMENT-UL2202154.4.5Withreferenceto4.4.4andTables4.2and4.3,aconstructiondoesnothaveasupportingframewhenitis:
a)Asinglesheetwithsingleformedflanges–formededges;b)Asinglesheetthatiscorrugatedorribbed;
c)Anenclosureformedorfabricatedfromsheetmetal;or
d)Anenclosuresurfacelooselyattachedtoaframe–forexample,byspringclips.
4.5Nonmetallicenclosures
4.5.1ApolymericenclosureorpolymericpartofanenclosureshallcomplywiththerequirementsintheStandardforPolymericMaterials–UseinElectricalEquipmentEvaluations,UL746C.See4.5.2.
Exception:See4.5.3.4.5.2Withreferenceto4.5.1,foracord-connectedunitthatisintendedtobesupportedonabench,desk,table,orsimilarapparatus,theflammabilityrequirementsforportableequipmentspecifiedintheStandardforPolymericMaterials–UseInElectricalEquipmentEvaluations,UL746Caretobeapplied.
4.5.3Anonmetallicpartthatformspartoftheenclosureisnotrequiredtocomplywith4.5.1underanyoneofthefollowingconditions:
a)Thepartcoversanopeningthathasnodimensiongreaterthan1inch(25.4mm)andthepartismadeofamaterialclassedasV-0,V-1,V-2,orHB,
b)ThepartismadeofamaterialclassedV-0,V-1,V-2,orHBandcoversanopeningwhichdoesnotallowaccesstolivepartsinvolvingariskoffire,electricshock,orelectricenergy–highcurrentlevels–ormovingpartstotheuserwhenthepartisremoved,
c)Thepartcoversanopeningthathasnodimensiongreaterthan4inches(101.6mm)andthepartismadeofamaterialclassedasV-0,V-1,V-2,orHB,andthereisnosourceofariskoffirecloserthan4inchesfromthesurfaceoftheenclosure,or
d)ThepartismadeofamaterialclassedV-0,V-1,V-2,orHBandthereisabarrierora
devicethatformsabarriermadeofamaterialclassedV-0betweenthepartandasourceofariskoffire.
Exception:ApartofacomponentisnotrequiredtobeclassedV-0,V-1,V-2,orHBwhenitcomplieswiththeflammabilityclassapplicabletothecomponent.4.5.4Apolymericmaterialenclosurehavinginanysingleunbrokensection,aprojectedsurfaceareagreaterthan10squarefeet(0.93m2)orasinglelineardimensiongreaterthan6feet(1.83m)shallhaveaflame-spreadratingof200orlesswhentestedinaccordancewiththe:
a)StandardforTestforSurfaceBurningCharacteristicsofBuildingMaterials,UL723;orb)Radiant-panelfurnacemethodintheTestMethodforSurfaceFlammabilityofMaterialsUsingaRadiantHeatEnergySource,ASTME162.
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16ELECTRICVEHICLE(EV)CHARGINGSYSTEMEQUIPMENT-UL2202OCTOBER2,20094.5.5Amaterialwithaflame-spreadratinghigherthanspecifiedin4.5.4isausablealternativefortheexteriorfinishorcoveringonanyportionoftheenclosurewhentheflame-spreadratingofthecombinationofthebasematerialandfinishorcoveringcomplieswith4.5.4.
4.5.6Aconductivecoatingappliedtoanonmetallicsurface(suchastheinsidesurfaceofacoveroranenclosure)shallcomplywiththeappropriaterequirementsintheStandardforPolymericMaterials–UseinElectricalEquipmentEvaluations,UL746C.
Exception:Whereflakingorpeelingofthecoatingdoesnotresultinariskoffireorelectricshockasaresultofareductionofspacingsorthebridgingofliveparts,thenthecoatingisnotrequiredtocomplywithUL746C.4.6Glasscoveredopenings
4.6.1Glasscoveringanopeningshallbesecuredinplacesothatitisnotreadilydisplacedinservice,andshallprovidemechanicalprotectionfortheenclosedparts.Glassforanopeningnotmorethan4inches(102mm)inanydimensionshallnotbelessthan1/16inch(1.6mm)thick,andglassforanopeningnotmorethan144squareinches(929cm2)inareaandhavingnodimensiongreaterthan12inches(305mm)shallnotbelessthan1/8inch(3.2mm)thick.Glassusedtocoveranarealargerthanspecifiedaboveshallnotbelessthan1/8inchthickandshall:
a)Beofanonshatteringortemperedtypethat,whenbroken,complieswiththeSafety
PerformanceSpecificationsandMethodsofTestforSafetyGlazingMaterialsUsedinBuildings,ANSIZ97.1;or
b)Besubjectedtothetestdescribedin61.1.
4.7Openingsforwiring
4.7.1Therequirementsdescribedin4.7.2–4.7.9applytofixedunits.
4.7.2Whenthreadsfortheconnectionofconduitaretappedallthewaythroughaholeinanenclosurewallorwhenanequivalentconstructionisemployed,thereshallnotbelessthanthreenormorethanfivethreadsinthemetal,andtheconstructionoftheenclosureshallbesuchthataconduitbushingiscapableofbeingattachedasintended.Whenthreadsfortheconnectionofconduitarenottappedallthewaythroughaholeinanenclosurewall,conduithub,orsimilarmaterialthereshallnotbelessthan3-1/2threadsinthemetalandthereshallbeasmooth,roundedinletholefortheconductorsequivalenttothatprovidedbyastandardconduitbushingwithaninternaldiameterthesameasthatofthecorrespondingtradesizeofrigidconduit.
4.7.3Clampsandfastenersfortheattachmentofconduit,electricalmetallictubing,armoredcable,nonmetallicflexibletubing,nonmetallic-sheathedcable,servicecable,andsimilarmaterialthataresuppliedasapartofanenclosureshallcomplywiththeStandardforMetallicOutletBoxes,UL514A,andtheStandardforConduit,TubingandConduitFittings,UL514B.
4.7.4Aknockoutinasheet-metalenclosureshallbesecuredandshallberemovablewithoutunduedeformationoftheenclosure.
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OCTOBER2,2009ELECTRICVEHICLE(EV)CHARGINGSYSTEMEQUIPMENT-UL2202174.7.5Aknockoutshallbeprovidedwithaflatsurroundingsurfacesothattheconduitbushingiscapableofbeingseatedasintended,andshallbelocatedsothatinstallationofabushingatanyknockouttobeusedduringinstallationdoesnotresultinspacingbetweenanuninsulatedlivepartandthebushingtobelessthanthatspecifiedinSpacings,Section21.
4.7.6Inmeasuringaspacingbetweenanuninsulatedlivepartandabushinginstalledinaknockoutasmentionedin4.7.5,itistobeassumedthatabushinghavingthedimensionsspecifiedinTable4.4isinplace,inconjunctionwithasinglelocknutinstalledontheoutsideoftheenclosure.
Table4.4
Knockoutorholesizesanddimensionsofbushings
Tradesizeofconduit
Inches1/23/411-1/41-1/222-1/233-1/244-1/256
Bushingdimensions
KnockoutorholediameterInches7/81-3/321-23/641-23/321-31/322-15/3233-5/84-1/84-5/85-1/85-5/86-3/4
(mm)(22.2)(27.8)(34.5)(43.7)(50.0)(62.7)(76.2)(92.1)(104.8)(117.5)(130.2)(142.9)(171.5)
OveralldiameterInches11-15/641-19/321-15/162-13/642-45/643-7/323-7/84-7/164-31/325-35/646-7/327-7/32
(mm)(25.4)(31.4)(40.5)(49.2)(56.0)(68.7)(81.8)(98.4)(112.7)(126.2)(140.9)(158.0)(183.4)
Inches3/827/6433/649/1619/325/83/413/1615/1611-1/161-3/161-1/4
Height
(mm)(9.5)(10.7)(13.1)(14.3)(15.10)(15.9)(19.1)(20.6)(23.8)(25.4)(27.0)(30.2)(31.8)
4.7.7Foranenclosurenotprovidedwithconduitopeningsorknockouts,spacingsnotlessthantheminimumspecifiedinSpacings,Section21shallbeprovidedbetweenuninsulatedlivepartsandaconduitbushinginstalledatanylocationthatistobeusedduringinstallation.Permanentmarkingontheenclosure,atemplate,oradrawingfurnishedwiththeunitarewaystospecifysuchalocation.Thespecifiedlocationoftheopeningsshallbesuchthatdamagetointernalpartsdoesnotresultwhenopeningsaremade.
4.7.8Withrespecttotherequirementin4.7.7,meansshallbeprovidedsothatanopeningforconduitiscapableofbeingmadewithoutsubjectinginternalpartstocontaminationresultingfromthepresenceofmetallicparticles.Compliancewiththisrequirementispossiblebytheuseofaremovable,boltedplate.4.7.9Apolymeric-ormetal-closureplugforanunusedconduitopeningshallcomplywiththerequirementsintheStandardforMetallicOutletBoxes,UL514A.
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18ELECTRICVEHICLE(EV)CHARGINGSYSTEMEQUIPMENT-UL2202OCTOBER2,20094.8Openingsinanenclosure
4.8.1Theenclosureofaunitshallbedesignedandconstructedtoreducetheriskofemissionofflame,moltenmetal,flamingorglowingparticles,orflamingdropsfromexitingtheenclosureandfallingoncombustiblematerialsoutsideoftheenclosure.4.9Enclosurebottomopenings
4.9.1Therequirementin4.8.1requiresacompletenoncombustiblebottomoraconstructionemployingindividualnoncombustiblebarriersundercomponents,groupsofcomponents,orassemblies,asspecifiedinFigure4.1.
ExceptionNo.1:Anenclosuremaybeprovidedwithventilatingopeningsinthebottompanelwhennoncombustiblebaffleplatesareprovidedtoreducetheriskofmaterialsfromfallingdirectlyfromtheinterioroftheunitontothesupportingsurfaceoranyotherlocationundertheunit.AnexampleofsuchabaffleisillustratedinFigure4.2.ExceptionNo.2:AnenclosuremaybeprovidedwithventilationopeningsinthebottomofanenclosurewhentheopeningsincorporateaperforatedmetalplateasdescribedinTable4.5,oragalvanizedorstainlesssteelscreenhavinga14-by14-meshperinch(25.4-mm)constructedofwirewithadiameterof0.018inch(0.4mm)minimum.ExceptionNo.3:ThebottomoftheenclosureunderareascontainingonlymaterialsclassedV-1orbetterinaccordancewiththeStandardforTestsforFlammabilityofPlasticMaterialsforPartsinDevicesandAppliances,UL94,shallhaveopeningsnolargerthan1/16squareinch(40mm2).ExceptionNo.4:Anenclosuremaybeprovidedwithventilatingopeningswithoutlimitationontheirsizeandnumberandcomplyingwith5.1.10inthebottompanelinareasthatcontainonlywires,cable,plugs,receptacles,transformers,andimpedanceprotectedorthermallyprotectedmotors,andinareasthatcontainonlycapacitorsthataredescribedinSection29.Thisisgeneratedtextforfigtxt.UL COPYRIGHTED MATERIAL –
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OCTOBER2,2009ELECTRICVEHICLE(EV)CHARGINGSYSTEMEQUIPMENT-UL220219Figure4.1Enclosurebottom
A–Regiontobeshieldedbybarrier.Thisconsistsoftheentirecomponentwhenitisnototherwiseshielded,andoftheunshieldedportionofacomponentwhichispartiallyshieldedbythecomponentenclosureorequivalent.B–Projectionofoutlineofcomponentonhorizontalplane.
C–Inclinedlinewhichtracesoutminimumareaofbarrier.Whenmoving,thelineisalways:(1)tangenttothecomponent,(2)fivedegreesfromthevertical,and(3)soorientedthattheareatracedoutonahorizontalplaneismaximum.
D–Location(horizontal)andminimumareaforbarrier.TheareaisthatincludedinsidethelineofintersectiontracedoutbytheinclinedlineCandthehorizontalplaneofthebarrier.
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134Thisisgeneratedtextforfigtxt.ELECTRICVEHICLE(EV)CHARGINGSYSTEMEQUIPMENT-UL2202OCTOBER2,2009Figure83.2
Rain-testsprayhead
ItemABCDEFGHJKLM
abc
inch1-7/327/169/16.578.5801/64c.06(No.
9)b23/325/321/43/32
mm31.011.014.014.6814.730.40c1.525.018.33.976.352.38
ItemNPQRSTUVW
inch1/32.575.576.453.4541/41/32(No.35)b(No.5/80.06
40)b
mm0.8014.5314.6111.5111.536.350.802.802.5016.01.52
NylonRain-testsprayheadsareavailablefromUnderwritersLaboratoriesANSI/ASMEB94.11MTwistDrillsOptional–Toserveasawrenchgrip.
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OCTOBER2,2009ELECTRICVEHICLE(EV)CHARGINGSYSTEMEQUIPMENT-UL220213583.2Acceleratedagingtests
83.2.1Gasketsdependeduponforprotectionfromrainandmountingfeetdependeduponforsupport–see50.5–madeofneopreneorrubbercompoundsandsolidpolyvinylchloridematerials,exceptfoamedmaterials,shallhavephysicalpropertiesasindicatedinTable83.1beforeandaftertheconditioningindicatedinTable83.2.
83.3Metalliccoatingthickness
83.3.1Withreferenceto82.10(b),(d)and(e),and82.11(b),themethodofdeterminingthethicknessofazincorcadmiumcoatingisdescribedin83.3.2–83.3.9.
83.3.2Thesolutiontobeusedforthistestistobemadefromdistilledwaterandistocontain200gramsperliterofreagentgradechromicacid(CrO3);and50gramsperliterofreagentgradeconcentratedsulfuricacid(H2SO4).Thelatterisequivalentto27millilitersperliterofreagentgradeconcentratedsulfuricacid,specificgravity1.84,containing96percentofH2SO4.
Table83.1
Physicalpropertiesforgaskets
Neopreneorrubbercompound
Physicalpropertya
TensileSetMinimumsetwhen1inch(25.4mm)gagemarksarestretchedto2-1/2inches(63.5mm),heldfor2minutesandmeasured2minutesafterrelease.
ElongationMinimumincreaseindistancebetween1inchgagemarksatbreak.
TensileStrengthMinimumforceatbreakingpoint.
a
Polyvinyl-chloridematerialsBeforeAfterconditioningconditioning
NotSpecified
Beforeconditioning1/4inch(6.4mm)Afterconditioning
–
250percent[to3-1/2inches(88.9
mm)]850psi(5.86
MPa)
65percentoforiginal75percentoforiginal250percent[to3-1/2inches(88.9mm)]1200psi(8.27
MPa)
75percentoforiginal90percentoforiginal
TobedeterminedusingthetestmethodsandapparatusdescribedinStandardTestMethodsforVulcanizedRubberandThermoplasticElastomersTension,ASTMD412,exceptthemethodfortensilesetistobeasspecifiedinthistable.
Table83.2
Conditioningparameters
Minimummaterial
temperatureriseadegreesF
(C)
639099117144
a
Conditioning
Rubberorneoprene
Airovenagingfor70hoursat212°F(100°C)Airovenagingfor168hoursat212°F(100°C)
7daysinanair-circulatedovenat235°F(113°C)
10daysinanair-circulatedovenat249.8°F(121.°C)
7daysinanair-circulatedovenat276.8°F(136°C)
Thermoplastic
7daysinanair-circulatedovenat189°F(87°C)
10daysinanair-circulatedovenat212°F(100°C)
(35)(50)(55)(65)(80)
7daysat249.8°F(121°C)or60daysat206°F(97°C)inanair-circulatedoven
MeasuredduringtheTemperatureTest,Section50.
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136ELECTRICVEHICLE(EV)CHARGINGSYSTEMEQUIPMENT-UL2202OCTOBER2,200983.3.3Thetestsolutionistobecontainedinaglassvesselsuchasaseparatoryfunnelwiththeoutletequippedwithastopcockandacapillarytubehavinganinsideboreof0.025inch(0.64mm)andalengthof5.5inches(140mm).Thelowerendofthecapillarytubeistobetaperedtoformatip,thedropsfromwhichareabout0.025milliliterseach.Topreserveaneffectivelyconstantlevel,asmallglasstubeistobeinsertedinthetopofthefunnelthrougharubberstopperanditspositionistobeadjustedsothat,whenthestopcockisopen,therateofdroppingis100±5dropsperminute.Wheredesired,anadditionalstopcockisallowedinplaceoftheglasstubetocontroltherateofdropping.
83.3.4Thesampleandthetestsolutionaretobekeptinthetestroomlongenoughtostabilizeatroomtemperature.Theroomtemperatureistoberecorded.Thetestistobeconductedatanambienttemperatureof70–90°F(21.1–32.2°C).
83.3.5Eachsampleistobethoroughlycleanedbeforetesting.Allgrease,lacquer,paint,andothernonmetalliccoatingsaretoberemovedcompletelybymeansofsolvents.Samplesarethentobethoroughlyrinsedinwateranddried.Careistobeexercisedtoavoidcontactofthecleanedsurfacewiththehandsoranyforeignmaterial.
83.3.6Thesampletobetestedistobesupported0.7–1inch(18–25mm)belowtheorifice,sothatthedropsofsolutionstrikethepointtobetestedandrunoffquickly.Thesurfacetobetestedistobeinclined45degreesfromhorizontal.
83.3.7Thestopcockistobeopenedandthetimeinsecondsistobemeasureduntilthedroppingsolutiondissolvestheprotectivemetalliccoating,exposingthebasemetal.Theendpointisthefirstappearanceofthebasemetalrecognizablebythechangeincoloratthatpoint.
83.3.8Eachsampleofatestlotistobesubjectedtothetestatthreeormorepoints,excludingcut,stenciled,andthreadedsurfaces,ontheinsidesurfaceandatanequalnumberofpointsontheoutsidesurfaceatplaceswherethemetalliccoatingisexpectedtobethethinnest.Onenclosuresmadefromprecoatedsheets,theexternalcornersthataresubjectedtothegreatestdeformationarelikelytohavethincoatings.
83.3.9Tocalculatethethicknessofthecoatingbeingtested,thethicknessfactorfromTable83.3applicableforthetemperatureatwhichthetestwasconductedistobemultipliedbythetimeinsecondsrequiredtoexposebasemetalasnotedin83.3.7.
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OCTOBER2,2009ELECTRICVEHICLE(EV)CHARGINGSYSTEMEQUIPMENT-UL2202137Table83.3Thicknessfactors
Thicknessfactors,0.00001inches(0.00025mm)persecond
Temperature,degreesF(C)
70(21.1)71(21.7)72(22.2)73(22.8)74(23.3)75(23.9)76(24.4)77(25.0)78(25.6)79(26.1)80(26.7)81(27.2)82(27.8)83(28.3)84858687888990
(28.9)(29.4)(30.0)(30.6)(31.1)(31.7)(32.2)
Cadmiumplatings
1.3311.3401.3521.3621.3721.3831.3951.4051.4161.4271.4381.4501.4601.4701.4801.4901.5011.5131.5241.5341.546
Zincplatings
0.9800.9901.0001.0101.0151.0251.0331.0421.0501.0601.0701.0801.0851.0951.1001.1101.1201.1301.1411.1501.160
84Marking
84.1Afixedunitintendedforoutdoor-useshallbemarked“Rainproof.”See83.1.1.
84.2Aportableunitshallnotbemarked“Rainproof”unlessshowntocomplywiththeRainTest,Section83.1.1.
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OCTOBER2,2009ELECTRICVEHICLE(EV)CHARGINGSYSTEMEQUIPMENT-UL2202A1APPENDIXA
StandardsforComponents
Standardsunderwhichcomponentsoftheproductscoveredbythisstandardareevaluatedincludethefollowing:
TitleofStandard−ULStandardDesignation
AnalogInstruments–PanelboardTypes,Electrical–UL1437
BuildingMaterials,TestsforSurfaceBurningCharacteristicsof–UL723Capacitors–UL810
CapacitorsandSuppressorsforRadio-andTelevision-TypeAppliances–UL1414Class2PowerUnits–UL1310
Conduit,Tubing,andConduitFittings–UL514B
DoubleInsulationSystemsforUseinElectronicEquipment–UL2097ElectricalEquipment–EnvironmentalConsiderations–UL50EElectromagneticInterferenceFilters–UL1283EnclosuresforElectricalEquipment–UL50
EquipmentWiringTerminalsforUseWithAluminumand/orCopperConductors–UL486EExtrudedInsulatingTubing–UL224IndustrialControlEquipment–UL508InsulatingBushings–UL635
InsulationCoordination,IncludingClearanceandCreepageDistancesforElectricalEquipment–UL840LowVoltageTransformers,Part1:GeneralRequirements–UL5085-1
LowVoltageTransformers,Part3:Class2andClass3Transformers–UL5085-3MarkingandLabelingSystems–UL969
Molded-CaseCircuitBreakers,Molded-CaseSwitches,andCircuit-BreakerEnclosures–UL489OpticalIsolators–UL1577
OutletBoxes,Metallic–UL514A
OverheatingProtectionforMotors–UL2111
PersonalProtectionSystemsforElectricVehicle(EV)SupplyCircuits;Part1:GeneralRequirements–UL2231-1
PersonalProtectionSystemsforElectricVehicle(EV)SupplyCircuits;Part2:ParticularRequirementsforProtectionDevicesforUseinChargingSystems–UL2231-2
PlasticMaterialsforPartsandDevicesandAppliances,TestsforFlammabilityof–UL94Plugs,Receptacles,andCouplers–UL2251
PolymericMaterials–LongTermPropertyEvaluations–UL746BPolymericMaterials–ShortTermPropertyEvaluations–UL746A
PolymericMaterials–UseinElectricalEquipmentEvaluations–UL746CPowerUnitsOtherThanClass2–UL1012Printed-WiringBoards–UL796
SoftwareinProgrammableComponents–UL1998Switches,Snap,General-Use–UL20
Tape,Insulating,PolyvinylChloride,Polyethylene,andRubber–UL510Terminals,ElectricalQuick-Connect–UL310
TestsforSafetyRelatedControlsEmployingSolid-StateDevices–UL991TestsforSharpnessofEdgesonEquipment–UL1439
Thermal-Links–RequirementsandApplicationGuide–UL60691Transformers,Specialty–UL506
TransformersandMotorTransformersforUseinAudio-,Radio-,andTelevision-TypeAppliances–UL
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A2ELECTRICVEHICLE(EV)CHARGINGSYSTEMEQUIPMENT-UL2202OCTOBER2,20091411
Transformers,DryType,GeneralPurposeandPower–UL1561WireConnectors–UL486A-486B
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OCTOBER2,2009−UL2202sr1SupersededrequirementsfortheStandardfor
ElectricVehicle(EV)ChargingSystemEquipmentUL2202,FirstEdition
TherequirementsshownarethecurrentrequirementsthathavebeensupersededbyrequirementsinrevisionsissuedforthisStandard.Toretainthecurrentrequirements,donotdiscardthefollowingrequirementsuntilthefutureeffectivedatesarereached.
11.4.2.1ThecordshallbeTypeG,SJ,SJTW-A,SJEOW-A,S,ST,SE,SO,SOO,STO,STOO,W-AorW.Thelengthofthecordusedforthealternatingcurrentinputcircuitasmeasuredfromthefaceoftheattachmentplugtothepointwherethecordemergesfromtheunitshallbenotlessthan6feet(1.8m).11.5.1.2Whereaknotinaflexiblecordservesasstrainrelief,thesurfacesthattheknotcontactsshallbefreefromburrs,fins,sharpedges,andprojectionsthatarecapableofdamagingthecord.
13.4ExternalconnectionsofaunitshallbeprotectedbyaninterlocksothattheconnectionisnotenergizedunlessitiscoupledtotheEV.
Exception:Portablecord-andplug-connectedelectricvehiclesupplyequipmentintendedforconnectiontoreceptacleoutletsrated125volts,singlephase,15and20amperesarenotrequiredtocomply.13.5Externalconnectionsofaunitshallbeprotectedbyameansthatde-energizesthecableconductorsandconnectoruponexposuretoastrainwhichresultsineithercableruptureorseparationofthecablefromtheconnectorandexposureofliveparts.
Exception:Portablecord-andplug-connectedelectricvehiclesupplyequipmentintendedforconnectiontoreceptacleoutletsrated125volts,singlephase,15and20amperesarenotrequiredtocomply.78.2(81.2)TherequirementsinSections79(82)–81(84)applyonlytofixedunits.
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