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IEC62040-1

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Uninterruptiblepowersystems(UPS)-

Part1:Safetyrequirements

Alimentationssansinterruption(ASI)-

Partie1:Exigencesdesécurité

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IEC62040-1

INTERNATIONAL

STANDARD

NORME

INTERNATIONALE

Edition2.02017-07

inside

colour

Uninterruptiblepowersystems(UPS)-

Part1:Safetyrequirements

Alimentationssansinterruption(ASI)-

Partie1:Exigencesdesécurité

INTERNATIONAL

ELECTROTECHNICAL

COMMISSION

COMMISSION

ELECTROTECHNIQUE

INTERNATIONALE

ICS29.200ISBN978-2-8322-4469-2

Warning!Makesurethatyouobtainedthispublicationfromanauthorizeddistributor.

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—2—IEC62040-1:2017OIEC2017

CONTENTS

FOREWORD

4

INTRODUCTION

6

1Scope

7

2Normativereferences

7

3Termsanddefinitions

8

4Protectionagainsthazards

15

5Testrequirements

28

6Informationandmarkingrequirements

42

Annexes

49

AnnexA(normative)Additionalinformationforprotectionagainstelectricshock

50

AnnexM(informative)Testprobesfordeterminingaccess

51

AnnexAA(informative)Minimumandmaximumcross-sectionofcopperconductors

suitableforconnectiontoterminalsforexternalconductor

52

AnnexBB(normative)Referenceloads

53

AnnexCC(normative)Ventilationoflead-acidbatterycompartments

57

AnnexDD(informative)Guidancefordisconnectionofbatteriesduringshipment

60

AnnexEE(informative)Short-timewithstandcurrenttestprocedure-Guidanceand

typicalvalues

62

AnnexFF(informative)Maximumheatingeffectintransformertests

66

AnnexGG(normative)Requirementsforthemountingmeansofrack-mounted

equipment

68

Bibliography

70

Figure101-Examplesofdesignofopeningspreventingverticalaccess

18

Figure102-Testcircuitforload-inducedchangeofreferencepotential-Single-

phaseoutput

34

Figure103-Testcircuitforload-inducedchangeofreferencepotential-Three-phase

output

34

Figure104-Voltagebackfeedwarninglabel

45

FigureM.101-Jointedtestfinger(IP2X)

51

FigureBB.1-Referenceresistiveload

53

FigureBB.2-Referenceinductive-resistiveload(series)

54

FigureBB.3-Referenceinductive-resistiveload(parallel)

54

FigureBB.4-Referencecapacitive-resistiveload(series)

54

FigureBB.5-Referencecapacitive-resistiveload(parallel)

54

FigureBB.6-Referencenon-linearload

55

FigureDD.1-Precautionarylabelforproductsshippedwiththebatterydisconnected

60

FigureDD.2-Precautionarylabelforproductsshippedwiththebatteryconnected

61

FigureEE.1-3-wiretestcircuitforUPSshort-timewithstandcurrent

62

FigureEE.2-4-wiretestcircuitforUPSshort-timewithstandcurrent

63

FigureEE.3-2-wiretestcircuitforsinglephaseUPSshort-timewithstandcurrent

64

Table1-Alphabeticallistofterms

9

nternationalEectrolechnicalCommlssioi

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IEC62040-1:2017OIEC2017—3—

Table101-UPSinputportconfiguration

16

Table102-Overvoltagecategories

19

Table103-Maximumtemperaturelimitsformagneticcomponentsduringstored

energymodeofoperation

21

Table22-Testoverview

29

Table104-Short-timewithstandcurrent

37

Table105-Temperaturelimitsfortransformerwindings

40

TableA.101-Comparisonoflimitsofworkingvoltage

50

TableAA.1-Conductorcross-sections(extractfromIEC61439-1:2011)

52

TableFF.1-Teststeps

66

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inthesubjectdealtwithmayparticipateinthispreparatorywork.International,governmentalandnon-

withtheInternationalOrganizationforStandardization(ISO)inaccordancewithconditionsdeterminedby

expensesarisingoutofthepublication,useof,orrelianceupon,thisIECPublicationoranyotherIEC

otherdamageofanynaturewhatsoever,whetherdirectorindirect,orforcosts(includinglegalfees)and

betweenanyIECPublicationandthecorrespondingnationalorregionalpublicationshallbeclearlyindicatedin

misinterpretationbyanyenduser.

internationalco-operationonallquestionsconcerningstandardizationintheelectricalandelectronicfields.To

agreementbetweenthetwoorganizations.

Publication(s)").Theirpreparationisentrustedtotechnicalcommittees;anyIECNationalCommitteeinterested

governmentalorganizationsliaisingwiththeIECalsoparticipateinthispreparation.IECcollaboratesclosely

—4—IEC62040-1:2017OIEC2017

INTERNATIONALELECTROTECHNICALCOMMISSION

UNINTERRUPTIBLEPOWERSYSTEMS(UPS)-

Part1:Safetyrequirements

FOREWORD

allnationalelectrotechnicalcommittees(IECNationalCommittees).TheobjectofIECistopromote

1)TheInternationalElectrotechnicalCommission(IEC)isaworldwideorganizationforstandardizationcomprising

TechnicalReports,PubliclyAvailableSpecifications(PAS)andGuides(hereafterreferredtoas"IEC

thisendandinadditiontootheractivities,IECpublishesInternationalStandards,TechnicalSpecifications,

consensusofopinionontherelevantsubjectssinceeachtechnicalcommittehasrepresentationfromall

2)TheformaldecisionsoragreementsofIEContechnicalmattersexpress,asnearlyaspossible,aninternational

interestedIECNationalCommittees.

3)IECPublicationshavetheformofrecommendationsforinternationaluseandareacceptedbyIECNational

Publicationsisaccurate,IECcannotbeheldresponsibleforthewayinwhichtheyareusedorforany

Committeesinthatsense.WhileallreasonableeffortsaremadetoensurethatthetechnicalcontentofIEC

transparentlytothemaximumextentpossibleintheirnationalandregionalpublications.Anydivergence

4)Inordertopromoteinternationaluniformity,IECNationalCommitteesundertaketoapplyIECPublications

thelatter.

5)IECitselfdoesnotprovideanyattestationofconformity.Independentcertificationbodiesprovideconformity

assessmentservicesand,insomeareas,accesstoIECmarksofconformity.IECisnotresponsibleforany

servicescarriedoutbyindependentcertificationbodies.

6)Allusersshouldensurethattheyhavethelatesteditionofthispublication.

membersofitstechnicalcommitteesandIECNationalCommitteesforanypersonalinjury,propertydamageor

7)NoliabilityshallattachtoIECoritsdirectors,employees,servantsoragentsincludingindividualexpertsand

Publications.

8)AttentionisdrawntotheNormativereferencescitedinthispublication.Useofthereferencedpublicationsisindispensableforthecorrectapplicationofthispublication.

9)AttentionisdrawntothepossibiitythatsomeoftheelementsofthisIECPublicationmaybethesubjectofpatentrights.IECshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights.

InternationalStandardIEC62040-1hasbeenpreparedbysubcommittee22H:Uninterruptiblepowersystems(UPS),ofIECtechnicalcommittee22:Powerelectronicsystemsandequipment.

Thissecondeditioncancelsandreplacesthefirsteditionpublishedin2008anditsAmendment1:2013.Thiseditionconstitutesatechnicalrevision.

Thiseditionincludesthefollowingsignificanttechnicalchangewithrespecttothepreviousedition:thereferencedocumenthasbeenchangedfromIEC60950-1:2005(safetyforITequipment)toIEC62477-1(groupsafetystandardforpowerelectronicconverters).

InternationalElectrotechnicalCommission

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IEC62040-1:2017OIEC2017—5—

ThetextofthisInternationalStandardisbasedonthefollowingdocuments:

FDIS

Reportonvoting

22H/217/FDIS

22H/218/RVD

FullinformationonthevotingfortheapprovalofthisInternationalStandardcanbefoundinthereportonvotingindicatedintheabovetable.

ThisdocumenthasbeendraftedinaccordancewiththeISO/IECDirectives,Part2.

ThisInternationalStandardistobereadinconjunctionwithIEC62477-1:2012.

TheprovisionsofthegeneralrulesdealtwithinIEC62477-1:2012areonlyapplicabletothis

documentinsofarastheyarespecificallycited.ClausesandsubclausesofIEC62477-1:2012

thatareapplicableinthisdocumentareidentifiedbyreferencetoIEC62477-1:2012,for

example,"Clause4ofIEC62477-1:2012applies,exceptasfollows".

Theexceptionsarethenlisted.Theexceptionscantaketheformofadeletion,areplacementoranadditionofsubclauses,tables,figuresorannexes.

Subclauses,tablesandfiguresthatareadditionaltothoseinIEC62477-1:2012are,inthisdocument,identifiedbyasuffixintheformatofX.10x,forexample4.3.101.

AnnexesthatareadditionaltothoseinIEC62477-1:2012are,inthisdocument,letteredAA,BB,etc.

Inthisdocument,thefollowingprinttypesareused:

·requirementsandnormativeannexes:romantype

●compliancestatementsandtestspecifications:italictype

·notesandotherinformativematter:smallerromantype

·normativeconditionswithintables:smallerromantype

●termsthataredefinedinClause3:bold

AlistofallpartsintheIEC62040series,publishedunderthegeneraltitleUninterruptiblePowerSystems(UPS),canbefoundontheIECwebsite.

Thecommitteehasdecidedthatthecontentsofthisdocumentwillremainunchangeduntilthe

stabilitydateindicatedontheIECwebsiteunder"

http://webstore.iec.ch

"inthedatarelatedto

thespecificdocument.Atthisdate,thedocumentwillbe

·reconfirmed

●withdrawn,

·replacedbyarevisededition,or

●amended.

colourprinter.

IMPORTANT-The'colourinside'logoonthecoverpageofthispublicationindicates

understandingofitscontents.Usersshouldthereforeprintthisdocumentusinga

thatitcontainscolourswhichareconsideredtobeusefulforthecorrect

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coveredbythereferencedocumentaretheresponsibilityofthetechnicalcommitteeusingthe

—6—IEC62040-1:2017OIEC2017

INTRODUCTION

IECtechnicalsub-committee22H:Uninterruptiblepowersystems(UPS)carefullyconsidered

therelevanceofeachparagraphofIEC62477-1:2012inUPSapplications.Thispartof

replacesormodifiesrequirementsasrelevant.Thisisbecauseproduct-specifictopicsnot

IEC62040utilizesIEC62477-1:2012asareferencedocumentandreferences,adds,

referencedocument.

IEC62477-1:2012relatestoproductsthatincludepowerelectronicconverters,witharatedsystemvoltagenotexceeding1000VACor1500VDC.Itspecifiesrequirementstoreducerisksoffire,electricshock,thermal,energyandmechanicalhazards,exceptfunctionalsafetyasdefinedinIEC61508(allparts).TheobjectivesofthisdocumentaretoestablishacommonterminologyandbasisforthesafetyrequirementsofproductsthatcontainpowerelectronicconvertersacrossseveralIECtechnicalcommittees.

IEC62477-1:2012wasdevelopedwiththeintention:

·tobeusedasareferencedocumentforproductcommitteesinsideIECtechnicalcommittee22:Powerelectronicsystemsandequipmentinthedevelopmentofproductstandardsforpowerelectronicconvertersystemsandequipment;

·toreplaceIEC62103asaproductfamilystandardprovidingminimumrequirementsforsafetyaspectsofpowerelectronicconvertersystemsandequipmentinapparatusforwhichnoproductstandardexists;and

NOTEThescopeofIEC62103containsreliabilityaspects,whicharenotcoveredbythisdocument.

·tobeusedasareferencedocumentforproductcommitteesoutsideTC22inthedevelopmentofproductstandardsofpowerelectronicconvertersystemsandequipmentintendedforrenewableenergysources.TC82,TC88,TC105andTC114,inparticular,havebeenidentifiedasrelevanttechnicalcommitteesatthetimeofpublication.

Thereferencedocument,beingagroupsafetystandard,willnottakeprecedenceoverthisproduct-specificstandardaccordingtoIECGuide104.IECGuide104providesinformationabouttheresponsibilityofproductcommitteestousegroupsafetystandardsforthedevelopmentoftheirownproductstandards.

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IEC62040-1:2017OIEC2017—7—

UNINTERRUPTIBLEPOWERSYSTEMS(UPS)-

Part1:Safetyrequirements

1Scope

ThispartofIEC62040appliestomovable,stationary,fixedorbuilt-inUPSforuseinlow-voltagedistributionsystemsandthatareintendedtobeinstalledinanareaaccessiblebyanordinarypersonorinarestrictedaccessareaasapplicable,thatdeliverfixedfrequencyACoutputvoltagewithportvoltagesnotexceeding1000VACor1500VDCandthatincludeanenergystoragedevice.ItappliestopluggableandtopermanentlyconnectedUPS,whetherconsistingofasystemofinterconnectedunitsorofindependentunits,subjecttoinstalling,operatingandmaintainingtheUPSinthemannerprescribedbythemanufacturer.

NOTE1TypicalUPSconfigurations,includingvoltageand/orfrequencyconvertersandothertopologies,are

describediniEC62040-3,thetestandperformanceproductstandardforUPS.

NOTE2UPSgenerallyconnecttotheirenergystoragedevicethroughaDClink.Achemicalbatteryisusedthroughoutthestandardasanexampleofanenergystoragedevice.Alternativedevicesexist,andassuch,where"battery"appearsinthetextofthisdocument,thisistobeunderstoodas"energystoragedevice".

ThisdocumentspecifiesrequirementstoensuresafetyfortheordinarypersonwhocomesintocontactwiththeUPSand,wherespecificallystated,fortheskilledperson.Theobjectiveistoreducerisksoffire,electricshock,thermal,energyandmechanicalhazardsduringuseandoperationand,wherespecificallystated,duringserviceandmaintenance.

ThisproductstandardisharmonizedwiththeapplicablepartsofgroupsafetypublicationIEC62477-1:2012forpowerelectronicconvertersystemsandcontainsadditionalrequirementsrelevanttoUPS

Thisdocumentdoesnotcover:

·UPSthathaveaDCoutput;

·systemsforoperationonmovingplatformsincluding,butnotlimitedto,aircrafts,shipsandmotorvehicles;

·externalACorDCinputandoutputdistributionboardscoveredbytheirspecificproductstandard;

·stand-alonestatictransfersystems(STS)coveredbyIEC62310-1;

·systemswhereintheoutputvoltageisdirectlyderivedfromarotatingmachine;·telecommunicationsapparatusotherthanUPSforsuchapparatus;

·functionalsafetyaspectscoveredbyIEC61508(allparts).

NOTE3Evenifthisdocumentdoesnotcovertheapplicationslistedabove,itiscommonlytakenasaguideforsuchapplications.

NOTE4SpecializedUPSapplicationsaregenerallygovernedbyadditionalrequirementscoveredelsewhere,forexampleUPSformedicalapplications.

2Normativereferences

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

InternationalElectrotechnicalCommission

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—8—

Clause2ofIEC62477-1:2012applies,exceptasfollows:

Addthefollowingnormativereferences:

IEC62040-1:2017OIEC2017

IEC60364-4-42,Low-voltageelectricalinstallations-Part4-42:Protectionforsafety-

Protectionagainstthermaleffects

IEC60384-14,Fixedcapacitorsforuseinelectronicequipment-Part14:Sectional

specification-Fixedcapacitorsforelectromagneticinterferencesuppressionandconnectiontothesupplymains

IECTR60755,Generalrequirementsforresidualcurrentoperatedprotectivedevices

IEC60947-2:2006,Low-voltageswitchgearandcontrolgear-Part2:Circuit-breakers1

IEC60950-1:2005,Informationtechnologyequipment-Safety-Part1:Generalrequirements

IEC61000-2-2:2002,Electromagneticcompatibility(EMC)-Part2-2:Environment-

Compatibilitylevelsforlow-frequencyconducteddisturbancesandsignalinginpubliclow-voltagepowersupplysystems

IEC61008-1,Residualcurrentoperatedcircuit-breakerswithoutintegralovercurrentprotectionforhouseholdandsimilaruses(RCCBs)-Part1:Generalrules

IEC61009-1,Residualcurrentoperatedcircuit-breakerswithintegralovercurrentprotectionforhouseholdandsimilaruses(RCBOs)-Part1:Generalrules

IEC62040-2:2005,Uninterruptiblepowersystems(UPS)-Part2:Electromagnetic

compatibility(EMC)requirements²

IEC62477-1:2012,Safetyrequirementsforpowerelectronicconvertersystemsandequipment-Part1:General

3Termsanddefinitions

Clause3ofIEC62477-1:2012applies,exceptasfollows:

Addthefollowingnewtermsanddefinitions,andnewnotes:

switchgearandcontrolgear-Part2:Circuit-breakers.

22ndedition(2005).This2ndeditionhasbeenreplacedin2016bya3rdeditionIEC62040-2:2016,

14thedition(2006).This4theditionhasbeenreplacedin2016bya5theditionIEC60947-2:2016,Low-voltage

Uninterruptiblepowersystems(UPS)-Part2:Electromagneticcompatibility(EMC)requirements.

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IEC62040-1:2017OIEC2017—9—

Table1-Alphabeticallistofterms

Terms

Termnumber

Terms

Termnumber

62040-1

62477-1

62040-1

62477-1

adjacentcircuit

3.1

powersemiconductordevice

3.34

activepower

3.111

primarypower

3.108

apparentpower

3.112

prospectiveshort-circuitcurrent

3.122

backfeed

3.127

protectiveequipotentialbonding

3.36

backfeedprotection

3.128

protectiveclass

3.37

basicinsulation

3.2

protectiveclassIl

3.38

basicprotection

3.3

protectiveclassIIl

3.39

bypass

3.110

protectiveearthing(PE)

3.40

commissioningtest

3.4

PEconductor

3.41

cord

3.109

protectiveimpedance

3.42

decisivevoltageclass(DVC)

3.5

(electrically)protectivescreening

3.43

doubleinsulation

3.6

protectiveseparation

3.44

DVCAs

3.7

PEC

3.45

DVCAx

3.8

PECS

3.46

earthfault

3.131

ratedconditionalshort-circuitcurrent

3.120

electricalbreakdown

3.9

ratedcurrent

3.117

(electrical)insulation

3.10

ratedload

3.115

(electronic)(power)

conversion

3.11

ratedpeakwithstandcurrent

3.118

enclosure

3.12

ratedshort-timewithstandcurrent

3.119

enhancedprotection

3.13

rating

3.113

expectedlifetime

3.14

ratedvalue

3.114

ExtraLowVoltage(ELV)

3.15

ratedvoltage

3.116

faultprotection

3.16

referencenon-linearload

3.126

fieldwiringterminal

3.17

referencetestload

3.125

fireenclosure

3.18

reinforcedinsulation

3.47

functionalinsulation

3.19