IEC 60884-2-7 2025适用于可重新接线和不可重新接线的电线延长线组

IEC60884-2-7

60884-2-7:202-502(en)

Edition2.0 2025-02

INTERNATIONAL

STANDARD

Plugsandsocket-outletsforhouseholdandsimilarpurposes—Part2-7:Particularrequirementsforcordextensionsets

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IEC60884-2-7

INTERNATIONAL

STANDARD

Plugsandsocket-outletsforhouseholdandsimilarpurposes—Part2-7:Particularrequirementsforcordextensionsets

INTERNATIONALELECTROTECHNICALCOMMISSION

ICS29.120.30

Edition2.0 2025-02

ISBN978-2-8327-0202-4

Warning!Makesurethatyouobtainedthispublicationfromanauthorizeddistributor.

RegisteredtrademarkoftheInternationalElectrotechnicalCommission

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IEC60884-2-7:2025

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CONTENTS

FOREWORD 4

Scope 6

Normativereferences 6

Termsanddefinitions 7

Generalrequirements 8

Generalremarksontests 8

Ratings 9

Classification 10

Marking 10

Checkingofdimensions 10

Protectionagainstelectricshock 11

Provisionforearthing 11

Terminalsandterminations. 11

Constructionoffixedsocket-outlets 11

ConstructionofplugsandportabIesocket-outlets 11

Interlockedsocket-outlets 13

Resistancetoageing,protectionprovidedbytheenclosures,andresistancetohumidity. 13

Insulationresistanceandelectricstrength 14

Operationofearthingcontacts 14

Temperaturerise 14

Breakingcapacity 14

Normaloperation 14

Forcenecessarytowithdrawtheplug 14

Flexiblecablesandtheirconnection 14

Mechanicalstrength 14

Resistancetoheat. 14

Screws,current-carryingpartsandconnections. 14

Creepagedistances,clearancesanddistancesthroughsealingcompound. 14

Resistanceofinsulatingmaterialtoabnormalheat,tofireandtotracking 15

Resistancetorusting 15

Additionaltestsonpinsprovidedwithinsulatingsleeves 15

EMCrequirements 15

Electromagneticfields(EMF)requirements. 15

Annexes 16

AnnexA(normative)Safety-relatedroutinetestsforfactory-wiredportable

accessories(protectionagainstelectricshockandcorrectpolarity) 16

AnnexB(informative)Alternativegrippingtests 17

AnnexC(normative)Switchesincorporatedinportablesocket-outlets 17

AnnexD(normative)Requirementsforplugsandfixedorportablesocket-outlets

intendedtobeusedwithAWGcables 17

AnnexE(informative)Teststobeappliedduringtheproductionofcrimped

connectionsinaccessories 17

AnnexF(normative)Additionalrequirementsforaccessoriesprovidedwithinsulation-piercingterminals 17

AnnexG(informative)Additionaltestsandrequirementsforaccessoriesintendedto

beusedinambienttemperaturesbelow—5°Cdowntoandincluding—45°C. 18

AnnexI(normative)Additionalrequirementsandtestsforplugsandsocket-outletsfor

high-load(HL)application 18

Bibliography. 19

Figure101—Examplesofcordextensionsets 7

Table101—Typeandlengthoftheflexiblecableandnominalcross-sectionalareaof

theconductorsofcordextensionsets 12

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INTERNATIONALELECTROTECHNICALCOMMISSION

PLUGSANDSOCKET-OUTLETSFORHOUSEHOLDANDSIMILARPURPOSES—

Part2-7:Particularrequirementsforcordextensionsets

FOREWORD

TheInternationalElectrotechnicalCommission(IEC)isaworldwideorganizationforstandardizationcomprisingallnationalelectrotechnicalcommittees(IECNationalCommittees).TheobjectofIECistopromoteinternationalco-operationonallquestionsconcerningstandardizationintheelectricalandelectronicfields.Tothisendandinadditiontootheractivities,IECpublishesInternationalStandards,TechnicalSpecifications,TechnicalReports,PubliclyAvailableSpecifications(PAS)andGuides(hereafterreferredtoas“IECPublication(s)”).Theirpreparationisentrustedtotechnicalcommittees;anyIECNationalCommitteeinterestedinthesubjectdealtwithmayparticipateinthispreparatorywork.International,governmentalandnon-governmentalorganizationsliaisingwiththeIECalsoparticipateinthispreparation.IECcollaboratescloselywiththeInternationalOrganizationforStandardization(ISO)inaccordancewithconditionsdeterminedbyagreementbetweenthetwoorganizations.

TheformaldecisionsoragreementsofIEContechnicalmattersexpress,asnearlyaspossible,aninternationalconsensusofopinionontherelevantsubjectssinceeachtechnicalcommitteehasrepresentationfromallinterestedIECNationalCommittees.

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Inordertopromoteinternationaluniformity,IECNationalCommitteesundertaketoapplyIECPublicationstransparentlytothemaximumextentpossibleintheirnationalandregionalpublications.AnydivergencebetweenanyIECPublicationandthecorrespondingnationalorregionalpublicationshallbeclearlyindicatedinthelatter.

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AllusersshouldensurethattheyhavetheIatesteditionofthispublication.

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AttentionisdrawntotheNormativereferencescitedinthispublication.Useofthereferencedpublicationsisindispensableforthecorrectapplicationofthispublication.

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IEC60884-2-7hasbeenpreparedbysubcommittee23B:Plugs,socket-outletsandswitches,ofIECtechnicalcommittee23:Electricalaccessories.ItisanInternationalStandard.

Thissecondeditioncancels andreplacesthefirsteditionpublishedin2011,andAmendment1:2013.Thiseditionconstitutesatechnicalrevision.

Thiseditionincludesthefollowingsignificanttechnicalchangeswithrespecttothepreviousedition:

a)alignmenttoIEC60884-1,fourthedition.

ThetextofthisInternationalStandardisbasedonthefollowingdocuments:

Draft

Reportonvoting

23B/1548/FDIS

23B/1562/RVD

Fullinformationonthevotingforitsapprovalcanbefoundinthereportonvotingindicatedintheabovetable.

ThelanguageusedforthedevelopmentofthisInternationalStandardisEnglish.

ThisdocumentwasdraftedinaccordancewithISO/IECDirectives,Part2,anddevelopedinaccordancewithISO/IECDirectives,Part1andISO/IECDirectives,IECSupplement,availableat

www.iec.ch/members

experts/refdocs.ThemaindocumenttypesdevelopedbyIECaredescribedingreaterdetailat

www.iec.ch/publications.

ThisdocumentistobeusedinconjunctionwithIEC60884-1:2022.

ThisdocumentsupplementsormodifiesthecorrespondingclausesinIEC60884-1:2022,soastoconvertthatpublicationintotheIECStandard:Particularrequirementsforcordextensionsets.

Wherethisdocumentstates"addition","modification"or"replacement",therelevantrequirement,testspecificationsorexplanatorymatterinIEC60884-1:2022shallbeadaptedaccordingly.

Subclauses,figures,tablesornoteswhichareadditionaltothoseinIEC60884-1:2022arenumberedstartingfrom101.

AlistofallthepartsintheIEC60884series,underthegeneraltitlePlugsandsocket-outletsforhouseholdandsimilarpurposes,canbefoundontheIECwebsite.

ThecommitteehasdecidedthatthecontentsofthisdocumentwillremainunchangeduntilthestabilitydateindicatedontheIECwebsiteunderwebstore.iec.chinthedatarelatedtothespecificdocument.Atthisdate,thedocumentwillbe

reconfirmed,

withdrawn,or

revised.

PLUGSANDSOCKET-OUTLETSFORHOUSEHOLDANDSIMILARPURPOSES—

Part2-7:Particularrequirementsforcordextensionsets

Scope

Replacement:

ThispartofIEC60884appliestocordextensionsets,rewirableandnon-rewirable,withorwithoutearthingcontact,witharatedvoltagegreaterthan50Vbutnotexceeding440Vandaratedcurrentnotexceeding16A,intendedforhouseholdandsimilarpurposes,eitherindoorsoroutdoors.

NOTE1Inthefollowingcountries,cordextensionsetsonlyforequipmentofclassIIarenotallowed:DE,DKandUK.

Thisdocumentdoesnotapplytocordextensionsetswithmeansforreeling.

Cordextensionsetsintendedtobeusedassocket-outletsforfurnitureareadditionallycoveredbyIEC60884-2-8.

Thisdocumentalsoappliestocordextensionsetswhichareintendedtobeusedinacablereel,andwhichthereforebecomecablereelswithadetachableflexiblecable.Forthecombinationofthecordextensionset,thereelrequirementsandtestsofIEC61242applyinaddition.

Cordextensionsetsaresuitableforuseatambienttemperaturesnotnormallyexceeding

+40°C,buttheiraveragetemperatureoveraperiodof24hdoesnotexceed+35°C,withalowerlimitoftheambientairtemperatureof—5°C.

NOTE2Inthefollowingcountry,cordextensionsetscomprisingasocket-outletforclassIIequipmentarenotpermitted;socket-outletsincordextensionsetsshallalwaysbeClassIasdefinedinIEC61140:UK.

Normativereferences

Thefollowingdocumentsarereferredtointhetextinsuchawaythatsomeoralloftheircontentconstitutesrequirementsofthisdocument.Fordatedreferences,onlytheeditioncitedapplies.Forundatedreferences,thelatesteditionofthereferenceddocument(includinganyamendments)applies.

IEC60884-1:2022,Clause2isapplicablewiththefollowingexceptions:

Addition:

IEC60884-1:2022,Plugsandsocket-outletsforhouseholdandsimilarpurposes—Part1:Generalrequirements

IEC60884-2-8:—,Socket-outletsforfurniture1

1Underpreparation.Stageatthetimeofpublication:IECCDV60884-2-8:2024.

Termsanddefinitions

Forthepurposesofthisdocument,thefollowingtermsanddefinitionsapply.

ISOandIECmaintainterminologydatabasesforuseinstandardizationatthefollowingaddresses:

IECElectropedia:availableat

/

ISOOnlinebrowsingplatform:availableat

/obp

IEC60884-1:2022,Clause3isapplicableexceptasfollows.

ReplacementofNOTE3:

NOTE3Theterm"portableaccessory"coversplugs,portablesocket-outletsandcordextensionsets.ExamplesofcordextensionsetsareshowninFigure101.

AdditionofthefollowingfigureafterFigure1:

Cordextensionset

Portablesocket-outlet

Plug

Exampleofcordextensionset

Cordextensionset

Plug

Multipleportablesocket-outlet

C

ExampIeofcordextensionsetwithmultipIesocket-outlets

Figure101—Examplesofcordextensionsets

Addition:

3.101

rewirablecordextensionset

cordextensionsetsoconstructedthatanyoftheaccessoriesortheflexiblecablecanbereplacedwiththeaidofageneralpurposetool

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3.102

non-rewirablecordextensionset

cordextensionsetsoconstructedthatitformsacompleteunitwiththeflexiblecable,theplugandthesocket-outletafterconnectionandassemblybythemanufacturer,thedisassemblyofwhichmakesitpermanentlyunfitforanyfurtheruse

Generalrequirements

IEC60884-1:2022,Clause4isapplicableexceptasfollows:

Additionofthefollowingparagraphattheendoftheclause:

Componentssuchasplugs,socket-outlets(includingmultiplesocket-outlets)andflexiblecablesofthecordextensionsetsshallbecompliantwith,andhavebeenverifiedagainst,therelevantproductstandardsforthosecomponents.

Cordextensionsetsintendedtobeusedassocket-outletsforfurnitureshallinadditioncomplywithIEC60884-2-8.

Generalremarksontests

Replacement:

General

Testsshallbecarriedouttoprovecompliancewiththerequirementslaiddowninthisdocument.

Testsarecarriedoutasfollows:

typetestsshallbecarriedoutonrepresentativespecimensofeachassembly;

routinetestsshallbecarriedoutoneachassemblymanufacturedaccordingtothisdocument.

Subclauses5.2to5.5areapplicabletotypetestsand5.6toroutinetests.

NOTEInthefollowingcountry,thefollowingtestsarecarriedoutonsamplesofthecordextensionsetinaccordancewiththesamplingrequirementsspecifiedinClauses5,17,18,19,20,21,22,23,24,25,26,28,29and30:ZA.

Productsarrangementduringtest

Thespecimensaretestedasdeliveredandundernormalconditionsofuse.

Ambienttestcondition

Unlessotherwisespecified,thetestsarecarriedoutintheorderoftheclauses,atanambienttemperaturebetween15°Cand35°C.

Incaseofdoubt,thetestsarecarriedoutatanambienttemperatureof(205)°C.

Additionalsamples

Threespecimensaresubjectedtoalltherelevanttests.

CompliancegeneraIrequirement

Thespecimensaresubmittedtoalltherelevanttestsandtherequirementsaresatisfiedifallthetestsaremet.

Ifonespecimendoesnotsatisfyatestduetoaprocessfaultinthemanufacturingofcordextensionsets,thattestandanyprecedingonewhichmayhaveinfluencedtheresultsofthetestshallberepeated,andalsothetestswhichfollowshallbemadeintherequiredsequenceonanotherfullsetofspecimens,allofwhichshallcomplywiththerequirements.

NOTETheapplicantcansubmit,togetherwithanumberofspecimensspecifiedin5.4,theadditionalsetofspecimenswhichcanberequired,shouldonespecimenfail.Thetestingstationwillthen,withoutfurtherrequest,testtheadditionalspecimensandwillonlyrejectthemifafurtherfailureoccurs.Iftheadditionalsetofspecimensisnotsubmittedatthesametime,thefailureofonespecimenwillentailrejection.

Routinetests

RoutinetestsarespecifiedinAnnexA.

Ratings

IEC60884-1:2022,Clause6isapplicableexceptasfollows.

Addition:

Ratedvoltage

Theratedvoltageofthecordextensionsetisthatoftheplug.

Complianceischeckedbyinspectionofthemarking.Inaddition,therequirementsof14.103shallbefulfilled.

Ratedcurrent

Theratedcurrentshallbethelowestvalueofthefollowing:

theratedcurrentoftheplug;or

thearithmeticsumofthehighestratedcurrentsofallplugswhichcanbesimultaneouslyinsertedintothecordextensionset;or

theratedcurrentoftheincorporatedovercurrentprotectivedevicehavingthesmallestratedcurrent,ifany.

Complianceischeckedbyinspectionofthemarking.Inaddition,therequirementsof14.104shallbefulfilled.

Power

Thepowerofcordextensionsets,whenapplicable,shallbecalculatedbymultiplyingtheratedcurrent(asdeterminedin6.102)andthenominalvoltageofthesupplysystemtowhichitcanbeconnected,withapowerfactorequalto1.

NOTE101NominalvoltagesaredefinedinIEC60038.

Complianceischeckedbyinspectionofthemarking.

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Classification

IEC60884-1:2022,Clause7isnotapplicableexceptfor7.1.1,7.1.2,7.1.3and7.1.4.

Replace7.1.4ofIEC60884-1:2022withthefollowing:

Classificationaccordingtothemethodofconnectingthecable:

rewirablecordextensionset;

non-rewirablecordextensionset.

Marking

IEC60884-1:2022,Clause8isapplicableexceptasfollows.

General

Deletethefirstthreedashedlistitems.

Addthefollowingparagraphsaftertheseventhdashedlistitem:

Forcordextensionsets,themarkingofthemanufacturer'sorresponsiblevendor'sname,trademarkoridentificationmarkshallbeappliedonlyifthemanufacturerofthecordextensionsetisdifferentfromthemanufacturerofthesocket-outlet.

NOTE101Themarkingofthename,trademarkoridentificationmarkofthemanufacturerorresponsiblevendorcanforexamplebeappliedonasleeveorlabelprovidedaroundthecord.

Foracordextensionset,thetypereference,whichmaybeacataloguenumber,shallbeplacedonthesmallestpackagingunitorontheproduct.

AdditionattheendofSubclause8.1:

— inthecaseofmultipleportablesocket-outletsorwhenthereisanovercurrentprotectivedevice,thepowerinwatts.

ThemarkingforpowershallbecompletedbythewordMAX.Thismarkingshallbedurableandeasilylegiblewithnormalorcorrectedvision,withoutadditionalmagnification.

Thepoweriscalculatedusingthenominalvoltageofthefixedelectricalinstallationtowhichitcanbeconnected,theratedcurrentinamperesandapowerfactorcosa=1.

NOTE102Asanexample,a250V/16Acordextensionsethasnominalsupplyvoltageof230Vandthecorrespondingmarkingwouldbe:

MAX3680Wor3680WMAX

Themaximumadmissiblepowermarkingshallnotbehiddenbyanyinsertedplug.

Checkingofdimensions

IEC60884-1:2022,Clause9isnotapplicable,seeClause4.

Protectionagainstelectricshock

IEC60884-1:2022,Clause10isnotapplicable,seeClause4.

Replacement:

10.101 Accessibilityoflivepartsduringnormaluse

Cordextensionsetsshallbesodesignedandconstructedthataftertheyarewiredandassembledasfornormaluse,livepartsarenotaccessible,evenafterremovalofpartswhichcanberemovedwithouttheuseofatool.

Complianceischeckedbyinspectionandbyapplyingwithatestwireof1,0mmdiameter(seeFigure8ofIEC60884-1:2022)aforceof1Nwherethecableenterstheplugandtheportablesocket-outletineverypossibleposition.

Duringthistest,itshallnotbepossibletotouchlivepartswiththegauge.

Anelectricalindicatorwithavoltagebetween40Vand50Vshallbeusedtoensurethatthereisnoelectricalcontactwiththerelevantparts.

Provisionforearthing

IEC60884-1:2022,Clause11isnotapplicable,seeClause4.

Terminalsandterminations

IEC60884-1:2022,Clause12isnotapplicable,seeClause4.

Constructionoffixedsocket-outletsIEC60884-1:2022,Clause13isnotapplicable.

Constructionofplugsandportablesocket-outlets

ReplacementofthetitleofClause14:

Constructionofcordextensionsets

IEC60884-1:2022,Clause14isapplicableexceptasfollows:

Addition:

Additionalrequirementsforcordextensionsets:

Socket-outletstobeusedincordextensionsetsshallhaveshutters.

NOTE1Inthefollowingcountries,socket-outletstobeusedincordextensionsetsarenotrequiredtohaveshutters:AU,AT,CA,CH,SG,JP,US,DE.

NOTE2Inthefollowingcountry,thestandardssheetsfortheportablesocket-outletsspecifytherequirementsforshutters:DK.

Plugsandsocket-outletsshallcomplywiththerelevantpartoftheIEC60884series.

NOTE3Inthefollowingcountry,BS1363appliestoplugsandsocket-outlets:UK.

SupplyflexiblecablesshallcomplywiththeIEC60227series(forpolyvinylchlorideinsulatedcables)ortheIEC60245series(forrubberinsulatedcables).

Eachpoleinthesocket-outletshallbeconnectedtothecorrespondingpoleoftheplug.

NOTE4Inthefollowingcountry,flexiblecordstoBS6500orBS7919arealsopermitted:UK.

Whereanearthingcontactisprovidedinthesocket-outletitshallbeconnectedtothecorrespondingearthingcontactoftheplug.

Complianceischeckedbyinspection.

FIexiblecabIe

Thetypeandlengthoftheflexiblecableandnominalcross-sectionalareaoftheconductorsofcordextensionsetsshallcomplywithTable101.

Table101—Typeandlengthoftheflexiblecableandnominalcross-sectionalareaoftheconductorsofcordextensionsets

Ratedcurrent

A

LightesttypeofflexiblecabIe

Minimumnominalcross-sectionalareaoftheconductors

MaximumlengthoftheflexibIecable

2,5

60227IEC52

0,50

3

6

60227IEC52

0,75

5

60227IEC53

1,00

10‘

60227IEC53or60245IEC53

0,75

5

1,00

30

13

60227IEC53or60245IEC53

1,00

5

1,50a

30

16’

60227IEC53or60245IEC53

1,00b

2

1,50

30

Inthefollowingcountriestheminimumnominalcross-sectionalareais1,25mm2:UKandSG.

b Inthefollowingcountries,forcordextensionsetswithsocket-outletofclassI,theminimumnominalcross-sectionalareais1,5mm2:DE,FI.

Inthefollowingcountry,theminimumnominalcross-sectionalareaforratedcurrent10Ais1.0mm2,andforratedcurrent16Ais1,5mm2:CN.

NOTE1Inthefollowingcountries,cordextensionsetshavingaratedcurrentof6Aand13Aarenotallowed:CH,DE,FIandNO.

NOTE2Inthefollowingcountries,cordextensionsetsintendedforoutdooruseshouldbeprovidedwithcabletype60245IEC53orequivalent:FI,NO,SAandSE.

NOTE3Inthefollowingcountry,thenominalcross-sectionalareais1,5mm2for5mmaximumlengthand2,5mm2for30mmaximumlength:SA.

NOTE4Inthefollowingcountry,theminimumcross-sectionalareais1mm2for5mmaximumlengthand1,5mm2for30mmaximumlength:CH.

NOTE5Inthefollowingcountry,cordextensionsetsrated10Ashallhaveanincorporatedprotection:NO.

Thelengthofthecableismeasuredbetweentheoperatingfacesoftheplugandthesocket-outlet.Inthecaseofmultiplesocket-outletsthemeasurementistakentothesocket-outletclosesttotheplug.

Complianceischeckedbyinspectionandmeasurement.

Ratedvoltageofcordextensionsetcomponents

Theratedvoltageoftheplugandthesocket-outletshallbethesame.Theratedvoltageofthecableshallnotbelessthantheratedvoltageoftheplugandsocket-outlet.

Complianceischeckedbyinspection.

Plugratinginacordextensionset

Theratedcurrentoftheplugshallnotbelowerthantheratedcurrentofthesocket-outlet.

Inacordextensionsetprotectedagainstoverload(e.g.havingafusedplugoraprotectiveovercurrentdevice),theratedcurrentoftheplugshallnotbelowerthantheratedcurrentoftheprotectiveovercurrentdevice.

Foracordextensionsetwithamultipleportablesocket-outletandnotincorporatingaprotectiveovercurrentdevice,theratedcurrentoftheplugshallbeatleastthearithmeticsumofthehighestratedcurrentsofallplugswhichcanbeinsertedintothecordextensionsetorthesameastheratedcurrentoftherelevantsocket-outletofthefixedwiringtheplugisintendedtobeconnectedto,whicheveristhelower.

NOTE1Inthefollowingcountrythefollowingpartofthelastparagraph“ratedcurrentoftherelevantsocket-outletofthefixedwiring”shallnotbeconsideredasitispossibletoinserta10A,13Aor16Aplugintoa10A,13Aor16Asocket-outlet:DK.

NOTE2Inthefollowingcountry,cordextensionsetscomprising3ormoresocket-outletsshallbefittedwithanovercurrentprotectivedevice:ZA.

Complianceischeckedbyinspection.

Appearanceofcordextensionsets

Cordextensionsetsshallnothaveanenclosurethatisshapedordecoratedlikeatoy.

NOTEExamplesofsuchenclosuresarethoserepresentinganimals,characters,personsorscalemodels.

Complianceischeckedbyinspection.

Interlockedsocket-outlets

IEC60884-1:2022,Clause15isnotapplicable.

Resistancetoageing,protectionprovidedbytheenclosures,andresistance

tohumidity

Replacement:

Theprotectiondegreeofthecordextensionsetisthesameasthelowestprotectiondegreeoftheplugandtheportablesocket-outlet.

Complianceischeckedbyinspection.

Insulationresistanceandelectricstrength

IEC60884-1:2022,Clause17isnotapplic