UL 964-2020原版完整文件

UL964

STANDARDFORSAFETYElectricallyHeatedBedding

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ULStandardforSafetyforElectricallyHeatedBedding,UL964TwelfthEdition,DatedAugust31,2011

SummaryofTopics

ThisrevisionofUL964datedSeptember18,2020includesanewSupplementSAwith

requirementsthatcoverremotelyoperatedelectricallyheatedbedding,includingsmartenabled.

TextthathasbeenchangedinanymannerorimpactedbyUL'selectronicpublishingsystemismarkedwithaverticallineinthemargin.

ThenewrequirementsaresubstantiallyinaccordancewithProposal(s)onthissubjectdatedMarch27,

2020andJuly15,2020.

Allrightsreserved.Nopartofthispublicationmaybereproduced,storedinaretrievalsystem,ortransmittedinanyformbyanymeans,electronic,mechanicalphotocopying,recording,orotherwisewithoutpriorpermissionofUL.

ULprovidesthisStandard"asis"withoutwarrantyofanykind,eitherexpressedorimplied,includingbutnotlimitedto,theimpliedwarrantiesofmerchantabilityorfitnessforanypurpose.

InnoeventwillULbeliableforanyspecial,incidental,consequential,indirectorsimilardamagesincludinglossofprofits,lostsavings,lossofdata,oranyotherdamagesarisingoutoftheuseofortheinabilitytousethisStandard,evenifULoranauthorizedULrepresentativehasbeenadvisedofthepossibilityofsuchdamage.InnoeventshallUL'sliabilityforanydamageeverexceedthepricepaidforthisStandard,regardlessoftheformoftheclaim.

UsersoftheelectronicversionsofUL'sStandardsforSafetyagreetodefend,indemnify,andholdULharmlessfromandagainstanyloss,expense,liability,damage,claim,orjudgment(includingreasonableattorney'sfees)resultingfromanyerrorordeviationintroducedwhilepurchaserisstoringanelectronicStandardonthepurchaser'scomputersystem.

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(TitlePageReprinted:September18,2020)

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UL964

StandardforElectricallyHeatedBedding

FirstEdition-May,1933

SecondEdition-June,1935

ThirdEdition-September,1942

FourthEdition-October,1950

FifthEdition-December,1954

SixthEdition-November,1968

SeventhEdition-September,1975EighthEdition-August,1981

NinthEdition-March,1988

TenthEdition-November,1994EleventhEdition-January,2000

TwelfthEditionAugust31,2011

ThisANSI/ULStandardforSafetyconsistsoftheTwelfthEditionincludingrevisionsthroughSeptember18,2020.

CommentsorproposalsforrevisionsonanypartoftheStandardmaybesubmittedtoULatanytime.ProposalsshouldbesubmittedviaaProposalRequestinUL'sOn-LineCollaborativeStandardsDevelopmentSystem(CSDS)at

.

UL'sStandardsforSafetyarecopyrightedbyUL.NeitheraprintednorelectroniccopyofaStandardshouldbealteredinanyway.AllofUL'sStandardsandallcopyrights,ownerships,andrightsregardingthoseStandardsshallremainthesoleandexclusivepropertyofUL.

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CONTENTS

INTRODUCTION

1Scope 5

2Components 5

3UnitsofMeasurement 6

4UndatedReferences 6

5Glossary 6

CONSTRUCTION

6CoveringofElectricalParts 7

7Insulation 7

8Spacings 8

9TemperatureLimitation 9

10ControlUnits 1

11Switches 14

12InternalWiring 14

13Supply,Control,Pigtail,andInterconnectingCords 14

14Connections 18

PERFORMANCE

15General 19

16InputTest 21

17ControlImpactandCalibrationTest 21

18ControlUnitsTests 21

19NormalTemperatureTest 23

19.1Blankets,sheets,quilts,andcomforters 23

19.2Mattresses,footwarmers,andmattresspads 23

20FlexingTest 25

20.1General 25

20.2Flexingofmattresses 29

21ConnectorFlexingTest 29

22ThrowBlanketCordFlexingTest 31

23LeakageCurrentTest(AllProductsExceptMattresses) 33

24DielectricVoltage-WithstandTest(AllProductsExceptMattresses) 33

25Laundering(AllProductsExceptMattresses) 34

26RollerFlexingTest(Mattresses,MattressPads,andFootWarmers) 34

27LeakageCurrentTest-Repeated(AllProductsExceptMattresses) 35

28DielectricVoltage-WithstandTest-Repeated(AllProductsExceptMattresses) 35

29NormalTemperatureTest-Repeated(AllProducts) 35

30ImmersionTest(Blankets,Sheets,Quilts,andComforters) 35

31AbnormalTemperatureTests 35

31.1General 35

31.2Firstmethodoffolding 36

31.3Secondandthirdmethodoffolding 38

31.4Threethicknessandfivethicknessfold 39

31.5Multi-thicknessfold 41

31.6Bunchtest 41

31.7Fullyblanketed 44

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33FinalMattressTests..TRIBUTIONwTH0UTPERI2Ssi…NFR…U46

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34FlammabilityofShells 46

35EaseofIgnitionTest 56

36EffectofCleaningSolventsonBeddingTests(AllProductsExceptMattresses) 59

37ThermostatsinBedding 60

38AbnormalOperationTestforProductsEmployingSemiconductorHeaterWire 63

39Push-BackStrainReliefTest 64

MANUFACTURINGANDPRODUCTIONLINETESTS

40PolarizationContinuityCheckTest 64

RATINGS

41Details 65

MARKINGS

42Details 65

SUPPLEMENTSA-REMOTEANDDELAYEDSTARTSCHEDULINGELECTRICALLYHEATED

BEDDING

INTRODUCTION

SA1Scope 69

SA2Glossary 69

CONSTRUCTION

SA3Controls-General 70

SA4ResistancetoElectroMagneticPhenomena(Immunity) 70

MARKINGSANDINSTRUCTIONS

SA5General 71

APPENDIXA

StandardsforComponents 72

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INTRODUCTION

1Scope

1.1Theserequirementscoverelectricallyheatedblankets,comforters,quilts,sheets,mattresspads,mattresses,footwarmers,throwblanketsandsimilarbedding.

1.2TheseproductsareforuseinaccordancewiththeNationalElectricalCode,ANSI/NFPA70,onsingle-phasealternating-currentsupplycircuitsoperatingatanominalpotentialof110to120Vac.

1.3Allbeddingiscord-connectedandissuppliedwitheitheraswitchoroneortwouser-adjustabletemperature-controlunits.Beddingmaybethermostaticallycontrolled.

1.4Beddingintendedforconnectiontootherthananominal120Vacsupplyvoltage,andbeddingforusewithwaterbeds,mechanicalbedsandthelike,aretobesubjecttoadditionalinvestigation,with

considerationgiventotheirintendeduse.

2Components

2.1Acomponentofaproductcoveredbythisstandardshall:

a)Complywiththerequirementsforthatcomponentasindicatedinthisstandard;

b)Beusedinaccordancewithitsrating(s)establishedfortheintendedconditionsofuse;c)Beusedwithinitsestablisheduselimitationsorconditionsofacceptability;

d)Additionallycomplywiththeapplicablerequirementsofthisendproductstandard;ande)Notcontainmercury.

Specificcomponentsareincompleteinconstructionfeaturesorrestrictedinperformancecapabilities.Suchcomponentsareintendedforuseonlyunderlimitedconditions,suchascertaintemperaturesnotexceedingspecifiedlimits,andshallbeusedonlyunderthosespecificconditions.

ExceptionNo.1:Acomponentofaproductcoveredbythisstandardisnotrequiredtocomplywithaspecificcomponentrequirementthat:

a)Involvesafeatureorcharacteristicnotrequiredintheapplicationofthecomponentintheproduct;

b)Issupersededbyarequirementinthisstandard;or

c)Isseparatelyinvestigatedwhenformingpartofanothercomponent,providedthecomponentisusedwithinitsestablishedratingsandlimitations.

ExceptionNo.2:Acomponentcomplyingwithacomponentstandardotherthanthosecitedinthisstandardisacceptableif:

a)Thecomponentalsocomplieswiththeapplicablecomponentstandardidentifiedinthisstandard;or

b)Thecomponentstandard:

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REPRODUwhereappropriate;TPERM

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2)Considerslong-termthermalpropertiesofpolymericinsulatingmaterialsinaccordancewithPolymericMaterials-LongTermPropertyEvaluations,UL746B;and

3)Anyuselimitationsoftheothercomponentstandardisidentifiedandappropriatelyaccommodatedintheenduseapplication.Forexample,acomponentusedinahouseholdapplication,butintendedforindustrialuseandcomplyingwiththerelevantcomponentstandardmayassumeuserexpertisenotcommoninhouseholdapplications.

2.2Acomponentthatisalsointendedtoperformotherfunctions,suchasovercurrentprotection,ground-faultcircuit-interruption,surgesuppression,anyothersimilarfunctions,oranycombinationthereof,shallcomplyadditionallywiththerequirementsoftheapplicablestandard(s)thatcoverdevicesthatprovidethosefunctions.

Exception:Wheretheseotherfunctionsarenotrequiredfortheapplicationandnotidentifiedaspartofmarkings,instructions,orpackagingfortheappliance,theadditionalcomponentstandard(s)neednotbeapplied.

2.3Acomponentnotanticipatedbytherequirementsofthisstandard,notspecificallycoveredbythecomponentstandardsidentifiedinthisstandard,andthatinvolvesapotentialriskofelectricshock,fire,orpersonalinjury,shallbeadditionallyinvestigatedinaccordancewiththeapplicablestandard.

2.4Withregardtoacomponentbeingadditionallyinvestigated,referencetoconstructionandperformancerequirementsinanotherendproductstandardisappropriatewherethatstandardanticipatesnormalandabnormaluseconditionsconsistentwiththeapplicationofthisstandard.

2.5MaterialsusedinaClass105(A)insulationsystemshallcomplywiththeNormalTemperatureTest,Section19.MaterialsusedinaninsulationsystemthatoperatesaboveClass105(A)temperaturesshalcomplywiththeStandardforSystemsofInsulatingMaterials-General,UL1446.

3UnitsofMeasurement

3.1Valuesstatedwithoutparenthesesaretherequirement.Valuesinparenthesesareexplanatoryorapproximateinformation.

4UndatedReferences

4.1Anyundatedreferencetoacodeorstandardappearingintherequirementsofthisstandardshallbeinterpretedasreferringtothelatesteditionofthatcodeorstandard.

5Glossary

5.1ForthepurposesofthisStandard,thefollowingdefinitionapplies.

5.2CLASS2SUPPLY-AsecondarycircuitsuppliedbyaClass2powersupplythatcomplieswiththeStandardforClass2PowerUnits,UL1310.

5.3LOW-VOLTAGECIRCUIT-Acircuitinvolvingapotentialofnotmorethan30voltsandsuppliedbyaprimarybattery,byastandardClass2transformer,orbyacombinationofatransformerandafixedimpedancethat,asaunit,complieswithalltheperformancerequirementsforaClass2transformer.Acircuitderivedfromaline-voltagecircuitbyconnectingresistanceinserieswiththesupplycircuitasa

meansoflimitingthevoltageandcurrentisnotconsideredtobealow-voltagecircuit.

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5.4SEMICONDUCTORHEATERWIRE-Aheatingelementconsistingoftwoconductorsseparatedbyaconductivematerialwhichhasarapidnon-linearincreaseinresistancewhenthetemperatureisraisedthroughaparticularrange.

5.5THROWBLANKET-Anelectricblanketintendedforuseinindoorlocationsbutnotspecificallyforuseonlyonbeds.Electricthrowblanketsaretypicallysmallerinoverallsizethanblanketsintendedforuseonbeds.Thelengthistypicallylessthan75inches(109.5cm)and/orthewidthistypicallylessthan38inches(96.5cm).

CONSTRUCTION

6CoveringofElectricalParts

6.1Exceptfortheconnectorattachedtothebedding,allelectricalpartsofthebeddingshallbeenclosedinashellorothercoveringofafabricinwhichtherearenoopenings.Allstuffing,padding,springs,andsimilarnonelectricalcomponentsofbeddingshallbeoutsidethiscoveringandshallnotbedetrimentaltothecoveringoritselectricalcontents.

6.2Allseamsinthefabricenclosingelectricalpartsshallbestronglystitchedorotherwiseequivalentlysecured.

7Insulation

7.1Electricalinsulationistobeconsideredwithrespecttoitsacceptabilityfortheparticularapplication.Ifitisnecessarytoinvestigateamaterialtodeterminewhetheritisacceptable,considerationistobegiventoitsmechanicalstrength,dielectricproperties,insulationresistance,heat-resistantqualities,thedegreetowhichitisenclosedorprotected,andanyotherfeatureshavingabearingontheriskoffire,electricshock,andinjurytopersonsinvolved,inconjunctionwithconditionsofactualservice.Allofthesefactorsaretobeconsideredwithrespecttothermalaging.

7.2Ordinaryvulcanizedfibermaybeusedforinsulatingbushings,washers,separators,andbarriersbutnotasthesolesupportforuninsulatedlivepartswhereshrinkage,currentleakage,orwarpagemayintroduceariskoffireorelectricshock.Thermoplasticmaterialsarenotconsideredtobeacceptableforthesolesupportofuninsulatedliveparts,unlesstheyhavebeenfoundtohavethenecessarystrengthandrigidity,resistancetoheat,resistancetoflamepropagation,dielectricproperties,andotherpropertiesacceptablefortheapplication.Allofthesefactorsaretobeconsideredwithrespecttothermalaging.

7.3Aninsulatinglinershallbeacceptableforthepurpose.Vulcanizedfiberorasimilarmaterialemployedwherespacingswouldotherwisebeunacceptableshallbe1/32inch(0.8mm)thickorthicker,andshallbesolocatedorofsuchmaterialthatitcannotbeadverselyaffectedbyarcing.However,164inch(0.4mm)orthickervulcanizedfiberisacceptableinconjunctionwithanadditionalairspacingof50percentormoreofthespacingrequiredforairalone.Barriersshallbesecuredinplacebyameansotherthanfrictionbetweensurfaces.Theelasticityoftubingshallnotbedependedupontoholdthetubinginplace.

7.4Theheatingelementshallbeelectricallyinsulatedforitsentirelengthsothatitisnotincontactwiththeshellorothercoveringfabricatanypoint.Theinsulatedheatingelementshallbeappliance-wiringmaterialacceptablefortheapplication.Theinsulatedheatingelementshallbesosecuredinpositionthatthereisnounduestressonitduringuse,handling,andcleaningofthebedding.Atleast9inches(229mm)ofthefootofablanket,sheet,quiltorcomforterthatcanbetuckedinduringnormaluseshallbedevoidofallelectricalpartsotherthanthemalehalfofthebeddingconnectorandtheportionofthe

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Exception:Beddingconstructedwithself-limitingsemiconductorheaterwireisabletobeprovidedwithelectricalpartstotheperimeterofthebedding.

7.5Heaterwire,includingsemiconductorheaterwire,shallcomplywiththeReferenceStandardforElectricalWires,Cables,andFlexibleCords,UL1581.Semiconductorheaterwireshalladditionallycomplywiththerequirementsforthermistor-typedevices,UL1434.

7.6Flexuralreliefshallbeprovidedfortheconductorsthatexitthemale-connectorbodyofablanketsheet,quilt,orcomforter.

7.7Eachthermostatandotherlivepartwithintheshellorothercoveringfabricshallnothaveanysharpedgesandshallbeelectricallyinsulatedwithinsulatingtubingacceptableforthevoltageandtemperatureinvolved.Theinsulationoneachpartshallbe:

a)Bonded,awatertightsealisrequired,totheinsulationontheheatingelementorotherwiringconnectedtothepart;and

b)Atleastasthickatthebondandelsewhereastheinsulationontheheatingelementorotherwiringconnectedtothepart.

7.8Aspliceinwiringwithinathermostatshallbeinsulatedifpermanenceofspacingfromthesplicetoothermetalpartsofthethermostatisnotprovided.

7.9PolymericelectricalinsulatingmaterialsandenclosuresshallcomplywiththeapplicablerequirementsoftheStandardforPolymericMaterials-UseinElectricalEquipmentEvaluations,UL746C.

7.10Therequirementsforsupplementalinsulation(e.g.tape,sleevingortubing)arenotspecifiedunlesstheinsulationordeviceisrequiredtofulfll7.1-7.4oraperformancerequirementofthisstandard.Insuchcases:

a)InsulatingtapeshallcomplywiththeStandardforPolyvinylChloride,Polyethylene,andRubberInsulatingTape,UL510;

b)SleevingshallcomplywiththeStandardforCoatedElectricalSleeving,UL1441;

c)TubingshallcomplywiththeStandardforExtrudedInsulatingTubing,UL224.

8Spacings

8.1Exceptasindicatedin8.2-8.4,oversurfaceandthrough-airspacingsnosmallerthan1/16inch(1.6

mm)shallbemaintainedfromuninsulatedlivepartsto:a)Uninsulatedlivepartsofoppositepolarity;andb)Accessiblemetalparts.

Exception:Thespacingsmaybelessthanspecifiedin8.1ifincompliancewiththeStandardforInsulationCoordinationIncludingClearancesandCreepageDistancesforElectricalEquipmentUL840.Thefollowingparametersshallbeusedunlessthemicroenvironmentisfurtherevaluatedandfoundtocomplywithotherparameters:

a)OvervoltageshallbeIl;

b)PollutionDegreeshallbe2;andREPRCc)MaterialGrouplHb.DISTRIB

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IfacircuitemploysavoltagelimitingdeviceforapplicationoftherequirementsintheStandardforInsulationCoordinationIncludingClearancesandCreepageDistancesforElectricalEquipmentUL840,thedeviceshallcomplywiththeStandardforSurgeProtectiveDevices,UL1449.

8.2Withinathermostat,exceptatthecontacts,thespacingsbetweenuninsulatedlivepartsonoppositesidesofthecontactsshallnotbelessthan1/32inch(0.8mm)throughairand3/64inch(1.2mm)overthesurfaceofinsulatingmaterial.

8.3Thespacingsmentionedin8.1and8.2donotapplytotheinherentspacingsofacomponent.Suchspacingsaretobeconsideredundertherequirementsforthecomponentinquestion.

8.4Atclosed-inpointsonly,suchasthescrew-and-washerconstructionofaninsulatedterminalmountedinmetal,aspacingof3/64inch(1.2mm)isacceptable.

9TemperatureLimitation

9.1Beddingshallbeprovidedwithmeanstoprecludetheattainmentofunacceptabletemperatures,see

19.1.1-19.1.3and31.1.1,onanypartofthebedding.

9.2Meanstoaverttheattainmentofunacceptabletemperaturesmaybeinherentintheconstructionofbedding-suchasalow-wattageheatingelement-thusnecessitatingnothermostatsorexternalcontrol.

9.3Thermostatsshallbedurable,reliable,uniforminoperation,andsufficientlysensitivefortheirintendeduseasdeterminedbycompliancewithThermostatsinBedding,Section37,andotherapplicablerequirements.

9.4Ifproperperformanceofathermostatdependsupontheintegrityofaclosedchamber,theconstructionshallprecludemoistureleaks,whichmayaffecttheuniformityandreliabilityofoperation.

9.5Athermostatinthebeddingshallnotbeadjustablebytheuserofthebeddingandshallbecoveredorsealedtoprecludetheentranceofdirtandlint.

9.6Materialsemployedinathermostatshallnotbeaffectedadverselybyanyoperatingconditionspresentedbythetestsdescribedintheserequirements.

9.7Platedsteel,exceptthatthebimetalneednotbeplated,maybeusedforacurrent-carryingpartinathermostatprovidedthatthepartisprotectedbysupplementarymeans(suchassealedsleeving)against

anyconditionsinvolvingmoisturetowhichthethermostatmaybesubjectedduringuseandcleaningofthebedding.

9.8Ifthermostatsorothertypesofdiscretetemperaturesensingdevicesareusedinthebeddingitself,theyshallbesufficientinnumberinaccordancewith9.10,andshallbeappropriatelylocatedtoenablethebeddingtocomplywith9.9,19.1.1-19.1.3,31.1.1,31.4.1-31.4.3,31.6.1-31.6.4,31.6.6,and31.6.7.Nosectionoftheheatingelementshallbeinserieswithfewerthantwodiscretesensingdeviceswhenthermostatsorothertypesofdiscretesensingdevicesareemployed.

9.9Compliancewiththerequirementin9.8istobedeterminedbyappropriatetestingthat,inthecaseofasheet,overblanket,quilt,orcomforter,istoincludethebunchingtestdescribedin31.6.1-31.6.4,31.6.6and31.6.7.

9.10Ablanket,sheet,quilt,orcomforterincorporatingdiscretesensingdevicesandintendedforuseon

atwin,double,queenorking-sizebedshallcomplywitheachofthefollowing:DFCRFURTHER

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a)Atleast10discretesensingdevicesaretobeusedinasizeintendedforatwinbedandineachhalfofaking-sizebed.Twelveormoredevicesaretobeusedinasizeintendedforadoubleorqueen-sizebed.

Exception:Ablanket,sheet,quilt,orcomfortertestedasspecifiedin31.5.1and31.6.5mayemployfewersensors.

b)Thetoprowofdiscretesensingdevicesinasizeintendedforatwinbed,inasizeintendedforadoubleorqueenbed,andineachhalfofasizeintendedforaking-sizebedistobesecuredagainstmigrationduringuse,handling,andcleaningoftheproduct.

9.11Whenaproductemployingatemperaturecontrolsystememploysanelectroniccircuitintendedtoprovideadegreeofprotectionagainsttheriskoffire,electricshock,orinjuryifafaultshouldoccurinthewire,thecircuitshallcomplywiththerequirementsfortestsforSafety-RelatedControlsEmployingSolid-StateDevices,UL991.Whentheelectroniccircuitisprovidedwithafusewhichisintendedtoopenasaresultofafaultinthewire,renderingtheproductinoperable,thefuseshallcomplywiththeStandardforLow-VoltageFuses-Part1:GeneralRequirements,UL248-1,andtheStandardforLow-VoltageFuses-Part14:SupplementalFuses,UL248-14.

Exception:ControlscomplyingwiththeStandardforAutomaticElectricalControlsforHouseholdandSimilarUse,Part1:GeneralRequirements,UL60730-1,includingAnnexH,fulfillstheaboverequirementsoftheStandardforTestsforSafety-RelatedControlsEmployingSolid-StateDevices,UL

991.

9.12SoftwarereliedontocomplywiththisstandardshallcomplywiththeStandardforSoftwareinProgrammableComponents,UL1998.

Exception:ControlscomplyingwiththeStandardforAutomaticElectricalControlsforHouseholdandSimilarUse,Part1:GeneralRequirements,UL60730-1,includingAnnexH,fulfillstheaboverequirementsoftheStandardforTestsforSafety-RelatedControlsEmployingSolid-StateDevices,UL

991.

9.13AthermalcutoffshallcomplywiththeStandardforThermal-Links(ThermalCutoffs)forUseinElectricalAppliancesandComponents,UL60691.

9.14Thefollowingtestparametersaretobeusedintheinvestigationofthecircuitcoveredby9.11forcompliancewiththeStandardforTestsforSafety-RelatedControlsEmployingSolid-StateDevices,UL991:

a)Withregardtoelectricalsupervisionofcriticalcomponents,acontrollershallnotpermitelectricbeddingfromexceedingtemperaturelimitsspecifiedin19.1.1and19.1.2ofthisstandard.

b)Afieldstrengthof3VpermeteristobeusedfortheRadiatedEMITest.

c)TheCompositeOperationalandCyclingTestistobeconductedfor14daysattemperatureextremesof0℃(32°F)and25℃(77°F).

d)ExposureClassH3istobeusedfortheHumidityTest.e)Avibrationlevelof5gistobeusedfortheVibrationTest.

f)WhenaComputationalInvestigationisconducted,λ。shallnotbegreaterthan6failures/106hoursfortheentiresystem.TheOperationalTestistobeconductedfor14days.

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