9.11.92 OfficialJournaloftheEuropeanCommunities NoC293/15
ProposalforaCouncilDirectiveonaudiblewarningdevicesfortwoorthree-wheelmotor
vehicles
(92/C293/03
COM(92)332final—SYN430
(SubmittedbytheCommissionon28September1992)
Whereasinordertofacilitateaccesstothemarketsof
non-Community countriesitappearsnecessarytoestablish
equivalenceasbetweentherequirementsofthisDirectiveand
thoseofRegulationNo28oftheUnitedNationsEconomic
CommissionforEurope;
Whereasthereisaneedfortherapidadjustmentofthe
technicalrequirementssetoutintheAnnextothisDirective
totakeaccountoftechnicalprogress;whereasthistask
shouldbeentrustedtotheCommissioninordertosimplify
andexpeditetheprocedure;whereasitisadvisible,whenever
theCouncilgrantspowerstotheCommissionforthe
implementation oftheruleslaiddowninrespectoftwoor
three-wheelmotorvehicles,toprovideforanadvance
consultationprocedurebetweentheCommissionandthe
MemberStateswithinanAdvisoryCommittee,
HASADOPTEDTHISDIRECTIVE :THECOUNCILOFTHEEUROPEAN COMMUNITIES ,
HavingregardtotheTreatyestablishingtheEuropean
EconomicCommunity,andinparticularArticle100a
thereof,
HavingregardtotheproposalfromtheCommission ,
IncooperationwiththeEuropeanParliament,
HavingregardtotheopinionoftheEconomicandSocial
Committee,
Whereasitisnecessarytoadoptmeasuresintendedgradually
tointroducetheinternalmarketoveraperiodexpiringon31
December1992;whereastheinternalmarketcomprisesan
entitywithoutinternalfrontierswithinwhichthefree
movementofgoods,persons,servicesandcapitalis
guaranteed;
WhereasineachMemberStatetwoandthree-wheelmotor
vehiclesmust,inrespectofaudiblewarningdevices,display
certainmandatorytechnicalcharacteristicswhichdifferfrom
oneMemberStatetoanother;whereasthisdisparity
constitutesabarriertotradewithintheCommunity ;
Whereastheseobstaclestotheestablishmentandoperation
oftheinternalmarketcanberemovedifthesame
requirementsareadoptedbyallMemberStatesinplaceof
theirnationalregulations;
Whereasthedrawingupofharmonizedrequirements
concerningaudiblewarningdevicesfortwoorthree-wheel
vehiclesisnecessaryinordertoenablethetype-approvaland
componenttype-approvalprocedurescoveredbyDirective
92/.../EEC(*)tobeimplementedinrespectofeachtypeof
saidvehicle.Article1
ThisDirectiveanditsAnnexesshallapplytoaudiblewarning
devicesforalltypesofvehicleasdefinedinArticle1of
CouncilDirective92/.../EECof...onthetype-approval
oftwoorthree-wheelmotorvehicles.
Article2
Theproceduresgoverningthegrantingofcomponent
type-approvalinrespectofaudiblewarningdevicesforatype
oftwoorthree-wheelmotorvehicle,thecomponent
type-approvalofanaudiblewarningdeviceintheformofa
componentandtheconditionsapplyingtothefreemovement
ofsaidvehiclesandtotheunimpededplacingonthemarket
ofaudiblewarningdevicesshallbethosesetoutinDirective
92/.../EEC,...,intheChaptersIIandIIIrespectively .
Whereas,giventhescaleandimpactoftheactionproposedin
thesectorinquestion,theCommunitymeasureswhichare
thesubjectofthisDirectivearenecessary,oreven
indispensable ,toattaintheobjectiveset,namelyCommunity
vehicletype-approval;whereasthisobjectivecannotbe
adequatelyachievedbytheMemberStatesindividually;Article3
InaccordancewiththeprovisionsofArticle11ofDirective
92/.../EECof...,theequivalenceoftherequirementsof
thisDirectiveandthoseofRegulationNo28oftheUnited
NationsEconomicCommissionforEurope(document
E/ECE/TRANS/505—Rev.1/Add.27)shallbe
recognized. 0)OJNoL...

NoC293/16 OfficialJournaloftheEuropeanCommunities 9.11.92
TheauthoritiesoftheMemberStateswhichgrant
componenttype-approval shallacceptcomponenttype­
approvalsissuedinaccordancewiththerequirementofthe
abovementioned RegulationNo28andcomponent
type-approvalmarksinplaceofcorrespondingcomponent
type-approvals issuedinaccordancewiththerequirementsof
thisDirective.Theopinionshallberecordedintheminutes;inaddition,
eachMemberStateshallhavetherighttoasktohaveits
positionrecordedintheminutes.TheCommissionshalltake
theutmostaccountoftheopiniondeliveredbythe
Committee .ItshallinformtheCommitteeofthemannerin
whichitsopinionhasbeentakenintoaccount.
Article4
Anyamendmentsnecessarytoadapttherequirementsofthe
Annexestotechnicalprogressshallbeadoptedinaccordance
withtheprocedurelaiddowninArticle5ofthis
Directive.Article6
1.MemberStatesshallbringintoforcethelaws,
regulationsandadministrative provisionsnecessaryto
complywiththisDirectivenotlaterthan1August1994.
TheyshallforthwithinformtheCommissionthereof.
Theyshallimplementtheseprovisionswitheffectfrom
1October1994.
2.WhentheMemberStatesadopttheseprovisions,the
provisionsshallcontainareferencetothisDirectiveorbe
accompaniedbysuchareferencewhentheyarepublishedin
officialform.Theproceduresformakingsuchreferenceshall
belaiddownbytheMemberStates.Article5
Inallcaseswherereferenceismadetotheproceduresetoutin
thisArticle,therepresentative oftheCommissionshall
submittotheCommitteesetupbyArticle12ofDirective
70/156/EEC(*)adraftofthemeasurestobetaken.The
Committeeshalldeliveritsopiniononthedraftwithinatime
limitwhichthechairmanmaylaydownaccordingtothe
urgencyofthematter,ifnecessarybytakingavote.Article7
ThisDirectiveisaddressedtotheMemberStates.
O)OJNoL42,23.2.1970,p.1,aslastamendedbyDirective
92/53/EEC(OJNoL225,10.8.1992,p.1).

9.11.92 OfficialJournaloftheEuropeanCommunities NoC293/17
ANNEX 1
REQUIREMENTS APPLYINGTOTHECOMPONENT TYPE-APPROVAL OFAUDIBLEWARNING
DEVICES
1.DEFINITIONS
ForthepurposesofthisDirective:
1.1.'audiblewarningdevice'meansadeviceemittinganacousticsignaltheoperationofwhichisintendedto
givewarningofthepresenceoforamanoeuvrebyavehicleinadangerousroadtrafficsituation;
1.1.1.adeviceconsistingofseveralsoundemissionorificesthatareexcitedbyasinglepowersourceshallbe
consideredtobeanaudiblewarningdevice;
1.1.2.anaudiblewarningdeviceconsistingofseveralcomponentseachemittinganacousticsignalandoperating
simultaneously asaresultofactuationbyasinglecontrolshallbeconsideredtobeasingleaudiblewarning
device;
1.2.'typeofaudiblewarningdevice'meansaudiblewarningdevicesnotessentiallydifferingamongthemselves,
particularlyinrespectofthefollowingaspects:
1.2.1.makeortradename;
1.2.2.operatingprinciple;
1.2.3.typeofpowersupply(directcurrent,alternatingcurrent,compressedair);
1.2.4.outershapeofthecasing;
1.2.5.shapeanddimensionsofthediaphragm(s);
1.2.6.shapeortypeofthesoundemissionorifice(s);
1.2.7.nominalsoundfrequencies;
1.2.8.nominalsupplyvoltage;
1.2.9.inthecaseofwarningdevicessupplieddirectbyanexternalsourceofcompressedair:thenominal
operatingpressure.
2.REQUIREMENTS
2.1.Audiblewarningdevicesshallemitacontinuous,uniformsoundandtheirsoundspectrumshallnotvary
perceptiblyduringoperation.Inthecaseofwarningdevicessuppliedwithanalternatingcurrentthis
requirementshallapplysolelyatconstantgeneratorspeed,thatspeedlyingwithintherangespecifiedin
Item3.3.2.
2.2.Warningdevicesshalldisplaysoundcharacteristics (spectraldistributionofthesoundenergy,sound
pressurelevel)andmechanicalcharacteristics suchthat,intheorderstated,theypassthetestsspecifiedin
Items3and4.
3.SOUNDLEVELMEASUREMENTS
3.1.Audiblewarningdevicesshallpreferablybetestedinananechoicenvironment .Theymayalternativelybe
testedinasemi-anechoicchamberorinaclearedoutsidespace.Inthiscase,precautionsmustbetakenin
ordertoavoidreflectionsoffthegroundinthemeasuringarea,e.g.byprovidinganumberofabsorbent
screens.Itshallbecheckedthatthesphericaldistortionisnomorethan1dBwithinahemispherehavinga
radiusofatleast5muptothemaximumfrequencytobemeasured,thismainlybeinginthedirectionof
measurementandattheheightofthedeviceandmicrophone .Theambientnoiseshallbeatleast10dB
lowerthanthesoundpressurelevelstobemeasured.
Thedevicesubmittedfortestingandthemicrophoneshallbeatthesameheight.Thatheightshalllie
between1.15and1.25m.Thelineofmaximumsensitivityofthemicrophoneshallcoincidewiththe
directioninwhichthesoundlevelofthewarningdeviceisatitshighestlevel.
Themicrophoneshallbepositionedsuchthatitsdiaphragmisatadistanceof2±0.01mfromtheexit
planeofthesoundemittedbythedevice.Thatsamedistancefromdeviceshavingseveralexitsshallbe
determinedinrelationtotheexitplaneclosesttothemicrophone .

NoC293/18 OfficialJournaloftheEuropeanCommunities9.11.92
3.2.Themeasurementsofthesoundpressurelevelshallinvolvetheuseofaclass-1precisionsoundlevelmeter
meetingtherequirementsofIECpublicationNo651,firstedition(1979).
Allmeasurementsshallbecarriedoutusingthe'rapid'timeconstant.The(A)weightingcurveshallbeused
tomeasuretheoverallsoundpressurelevels.
TheFouriertransformofthesoundsignalshallbeusedinmeasuringtheemitted-sound spectrum.
Alternatively ,thirdoctavefiltersmeetingtherequirementssetoutinIECpublicationNo225,firstedition
(1966)maybeused.
Inthatinstancethesoundpressurelevelwithinthe2500Hzcentreoctavefrequencybandshallbe
determinedbyaddingthequadraticmeansofthesoundpressuresinthethird-octavebandsofcentre
frequenciesof2000,2500and3150Hz.InallcasesonlytheFouriertransformmethodmaybe
consideredtobeareferencemethod.
3.3.Theaudiblewarningdeviceshallbesuppliedwithoneofthefollowingvoltages,asappropriate :
3.3.1.inthecaseofaudiblewarningdevicesreceivingdirectcurrentatestvoltageof6.5,13or26volts ,measured
attheoutputsideoftheeletricitysourceandcorrespondingtoanominalvoltageof6,12or24volts
respectively;
3.3.2.whereaudiblewarningdevicesreceivedirectcurrentthatshallbesuppliedbyanelectricalgeneratorofthe
typenormallyusedwiththistypeofdevice.Theacousticcharacteristicsofthattypeofwarningdeviceshall
berecordedatalternatorspeedscorrespondingto50%,75%and100%ofthemaximumspeedstatedby
themanufacturarofthealternatorforcontinuousoperation.Thealternatorshallbesubjecttonoother
electricalloadduringthetest.ThedurabilitytestdescribedinItem4shallbecarriedoutataspeedstated
bythemanufactureroftheequipmentandselectedfromtherangereferredtoabove.
3.4.Ifarectifiedcurrentisusedforthetestonanaudiblewarningdevicereceivingdirectcurrent,the
unsmoothedcomponentofthevoltageatitsterminals,measuredfrompeaktopeakduringoperationof
•thewarningdevices,shallnotexceed0.1volts.
3.5.Theresistanceoftheelectricalconductorforaudiblewarningdevicesreceivingdirectcurrent,including
theresistanceoftheterminalsandcontacts,shalllieascloselyaspossibleto:
—0.05Ohmsforanominalvoltageof6V;
—0.10Ohmsforanominalvoltageof12V;
—0.20Ohmsforanominalvoltageof24V.
3.6.Theaudiblewarningdeviceshallberigidlymounted,usingthepartorpartsintendedforthatpurposeby
itsmanufactureronasupport,themassofwhichisatleasttentimesgreaterthanthatofthewarningdevice
tobetestedandatleast30kg.Moreover,thesupportshallbearrangedinsuchawaythatthereflections
offitswallsandthevibrationsshallhavenosignificanteffectontheresultsofthemeasurements .
3.7.UndertheconditionssetoutabovetheA-weightedsoundlevelshallnotexceedthefollowingvalues:
(a)115dB(A)foraudiblewarningdevicesintendedmainlyformopeds,motorcyclesandtricycles
developingapowerofnotmorethan7kW;
(b)118dB(A)foraudiblewarningdevicesintendedmainlyformotorcyclesandtricyclesdevelopinga
powerofmorethan7kW.
3.7.1.Moreoverthesoundpressurelevelwithinthe1800—3550Hzfrequencybandmustbehigherthanthat
ofanyfrequencycomponentabove3550Hz,andinanycasebeatleast:
(a)90dB(A)inthecaseofaudiblewarningdevicesintendedmainlyformopeds;
(b)95dB(A)foraudiblewarningdevicesintendedmainlyformotorcyclesandtricyclesdevelopinga
powerofnotmorethan7kW;
(c)105dB(A)foraudiblewarningdevicesintendedmainlyformotorcyclesandtricyclesdevelopinga
powerofmorethan7kW.
3.7.2.Audiblewarningdevicesdisplayingthecharacteristics describedin(c)maybeusedonthevehicles
describedin(a)and(b)whileaudiblewarningdevicesdisplayingthesoundcharacteristicsdescribedin(b)
maybeusedonmopeds;

9.11.92 OfficialJournaloftheEuropeanCommunities NoC293/19
3.8.thecharacteristics setoutabovemustalsobedisplayedbyanyaudiblewarningdevicethathasbeen
subjectedtothedurabilitytestprovidedforinItem4.Thevariationinvoltageshallbeeitherbetween
115%and95%oftheratedvalueforaudiblewarningdevicesreceivingdirectcurrentorbetween50%
and100%ofthemaximumalternatorspeedstatedbythemanufacturerofthealternatorforcontinuous
operationinthecaseofaudiblewarningdevicesreceivingalternatingcurrent.
3.9.Thetimelagbetweenactuationandthemomentwhenthesoundreachestheminimumvaluerequiredby
Item3.7shallnotexceed0.2secondsmeasuredatanambienttemperatureof20±5°C.This
requirementapplies,inparticular,topneumaticorelectro-pneumatic warningdevices.
3.10.Underthepowersupplyconditionslaiddownbytheirmanufacturers pneumaticorelectro-pneumatic
warningdevicesshallyieldthesameacousticperformanceasthoserequiredforelectricaudiblewarning
devices.
3.11.Theminimumvaluesquotedabovemustbeobtainedforeachoftheindividualcomponentsofany
multi-tonedeviceeachcomponentpartofwhichmayemitsoundindependently .Themaximumoverall
soundlevelmustbeachievedwithallofthecomponentpartsoperatingatthesametime.
4.DURABILITY TEST
4.1.Theaudiblewarningdeviceshallbesuppliedwiththenominalvoltageattheconductorresistancespecified
inItems3.3to3.5andbeoperated:
—10000timesinthecaseofwarningdevicesintendedmainlyformopeds,motorcyclesandtricycles
developingapowernotexceeding7kW;
—50000timesinthecaseofwarningdevicesintendedmainlyformotorcyclesandtricyclesdevelopinga
powerofmorethan7kWrespectively ;
atarateofonesecondonfollowedbyfoursecondsoff.Duringthetesttheaudiblewarningdeviceshallbe
exposedtoaforceddraughthavingaspeedofrougly10m/sec.
4.2.Ifatestisconductedwithinaninsulatedchamberthatshallbeofsufficientvolumetoensurenormal
dissipationoftheheatgivenoffbythewarningdeviceduringthedurabilitytest.
4.3.Theambienttemperaturewithinthetestchambershallliebetween+15and+30°C.
4.4.If,afterhalftherequirednumberofoperations,thecharacteristicsofthesoundlevelhavealteredas
comparedwithbeforethetesttheaudiblewarningdevicemaybereset.Whenthetotalnumberof
operationsrequiredhavebeencompletedtheaudiblewarningdevicemustsuccessfullycompletethetest
describedinItem3,wherenecessaryafterbeingfurtherreset.
4.5.Electro-pneumatic audiblewarningdevicesmaybelubricatedwiththeoilrecommended bytheir
manufacturerevery10000operations.
5.COMPONENT TYPE-APPROVAL MARK
5.1.Allaudiblewarningdevicesconformingtothetypethathasbeencomponenttype-approved shallbeara
componenttype-approvalmarkmeetingtherequirementssetoutinAnnexVtoCouncilDirective
92/.../EEC.

NoC293/20 OfficialJournaloftheEuropeanCommunities 9.11.92
Appendix1
Informationdocumentinrespectofatypeofaudiblewarningdeviceintendedfortwoorthree-wheelmotor
vehicles
(tobeattachedtotheapplicationforcomponenttype-approvalwherethisissubmitted,separatelyfromthe
applicationforvehicletype-approval )
OrderNo(assignedbytheapplicant):
Theapplicationforcomponenttype-approval inrespectofatypeofaudiblewarningdeviceintendedfortwoor
three-wheelmotorvehiclesshallcontaintheinformationsetoutinAnnexIItoCouncilDirective92/.../EEC,
underA,Items9.5.1to9.5.4.
Appendix2
Certificateofcomponenttype-approvalforatypeofaudiblewarningdeviceintendedfortwoorthree-wheelmotor
vehicles
MODEL
Nameofadministration
ReportNo bytestingbody date
Componenttype-approvalnumber: Extensionnumber:
1.Makeofaudiblewarningdevice:
2.Typeofaudiblewarningdeviceandvehicle(s)forwhichitisintended[statethepoweroutputofmotorcycles
andtricycles(^7kWor>7kW)]:
3.Manufacturer 'snameandaddress:
4.Nameandaddressofmanufacturer'srepresentative (ifany):
5.Audiblewarningdevicesubmittedforateston:
6.Componenttype-approvalgranted/refused('):
7.Place:
8.Date:
9.Signature:
(')Deleteasappropriate .

OfficialJournaloftheEuropeanCommunities NoC293/21 9.11.92
ANNEXII
REQUIREMENTS APPLYINGTOTHEFITTINGOFAUDIBLEWARNINGDEVICESTOTWOOR
THREE-WHEEL MOTORVEHICLES
1.DEFINITIONS
ForthepurposesofthisDirective:
1.1.'typeofvehicle'meansvehiclesnotdifferingessentiallyamongthemselves,whereanysuchdifferencesmay
relateto:
1.1.1.thenumberandtype(s)ofaudiblewarningdevicesfittedtothevehicle;
1.1.2.thewarningdeviceadaptersonthevehicle;
1.1.3.thepositionofthewarningdevicesonthevehicle;
1.1.4.thestiffnessofthestructuralpartstowhichtheaudiblewarningdevice(s)is(are)fitted;
1.1.5.theshapeandthematerialsusedinthebodyworkformingthefrontofthevehiclewhicharelikelytoaffect
thelevelofthesoundsemittedbythewarningdevice(s)andtomaskthosesounds.
2.REQUIREMENTS
2.1.Allvehiclesshallbefittedwithanaudiblewarningdevicethathasbeencomponenttype-approved in
pursuanceofthisDirectiveorofDirective70/388/EEConaudiblewarningdevicesformotor
vehicles(');
2.2.thetestvoltageshallbethatlaiddowninItem3.3inAnnexI;
2.3.thesoundpressurelevelsshallbemeasuredundertheconditionslaiddowninItem3.2inAnnex1;
2.4.theA-weightedsoundpressurelevelemittedbythedevice(s)fittedtothevehicleshallbemeasured7m
aheadofthevehicle,whichshallhavebeenplacedonaclearspace,thegroundbeingassmoothaspossible
and,inthecaseofdirect-currentaudiblewarningdevices,theengineofthevehiclebeingshutdown;
2.5.themicrophoneforthemeasuringdeviceshallbelocatedroughlyinthemedianlongitudinalplaneofthe
vehicle;
2.6.thepressureleveloftheambientnoiseandofthenoisegeneratedbythewindshallbeatleast10dB(A)
lowerthanthesoundleveltobemeasured;
2.7.themaximumsoundpressurelevelshallbesoughtwithinasegmentlyingbetween0.5and1.5mabove­
groundlevel;
2.8.whenmeasuredunderthe'conditionsspecifiedinItems2.2to2.7themaximumsoundlevelvalue(Item
2.7)oftheaudiblewarningundertestshallbeatleast:
(a)75dB(A)andatthemost112dB(A)formopeds;
(b)80dB(A)andatthemost112dB(A)formotorcyclesandtricyclesdevelopingapowerofnotmore
than7kW;
(c)93dB(A)andatthemost112dB(A)formotorcyclesandtricyclesdevelopingapowerofmorethan
7kW.
(')OJNoL176,10.8.1970,p.12.

NoC293/22 OfficialJournaloftheEuropeanCommunities9.11.92
Appendix1
Informationdocumentinrespectoftheinstallationofanaudiblewarningdeviceonatypeoftwoorthree-wheel
motorvehicle
(tobeattachedtotheapplicationforcomponenttype-approvalwherethisissubmittedseparatelyfromthe
applicationforvehicletype-approval )
OrderNo(assignedbytheapplicant):
Theapplicationforcomponenttype-approvalinrespectoftheinstallationofanaudiblewarningdeviceonatype
oftwoorthree-wheelmotorvehicleshallcontaintheinformationsetoutunderthefollowingpointsinAnnexIIto
CouncilDirective92/.../EEC,underA:
—0.1
—0.2
—0.4to0.6
—3.2.5to3.2.5.2.2
—9.5.5.
Appendix2
Certificateofcomponenttype-approvalinrespectoftheinstallationofanaudiblewarningdeviceonatypeoftwo
orthree-wheelmotorvéhiculés
MODEL
Nameofadministration
ReportNo bytestingbody date
Componenttype-approvalnumber: Extensionnumber:
1.Makeortradenameofvehicle:
2.Typeofvehicle:
3.Manufacturer 'snameandaddress:
4.Nameandaddressofmanufacturer'srepresentative (ifany):
5.Vehiclesubmittedforteston:
6.Componenttype-approvalgranted/refused('):
7.Place:
8.Date:
9.Signature:
(')Deleteasappropriate .