BSEN17278:2021

BSIStandardsPublication

Naturalgasvehicles—Vehiclefuellingappliances

bsi.

BSEN17278:2021BRITISHSTANDARD

Nationalforeword

ThisBritishStandardistheUKimplementationofEN17278:2021.

TheUKparticipationinitspreparationwasentrustedtoTechnicalCommitteeGSE/40,Gassupplyequipmentfornaturalgasvehicles.

Alistoforganizationsrepresentedonthiscommitteecanbeobtainedonrequesttoitscommitteemanager.

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Thispublicationhasbeenpreparedunderamandategiventothe

EuropeanStandardsOrganizationsbytheEuropeanCommissionandtheEuropeanFreeTradeAssociation.ItisintendedtosupportrequirementsoftheEUlegislationdetailedintheEuropeanForeword.AEuropean

Annex,usuallyAnnexZAorZZ,describeshowthispublicationrelatestothatEUlegislation.

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betweenthispublicationandtherelevantUKlegislation.IfthereisnoNationalAnnexofthiskind,therelevantAnnexZAorZZinthebody

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applicableinGreatBritain.ReferencestoEUlegislationmayneedtobereadinaccordancewiththeUKdesignationandtheapplicableUKlaw.

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/standardsandregulation

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◎TheBritishStandardsInstitution2021

PublishedbyBSIStandardsLimited2021

ISBN9780539004137

ICS75.200

BRITISHSTANDARD

CompliancewithaBritishStandardcannotconferimmunityfromlegalobligations.

ThisBritishStandardwaspublishedundertheauthorityoftheStandardsPolicyandStrategyCommitteeon31July2021.

Amendments/corrigendaissuedsincepublication

DateTextaffected

BSEN17278:2021

BSEN17278:2021

EUROPEANSTANDARDNORMEEUROPEENNEEUROP?ISCHENORM

EN17278

June2021

ICS75.200

EnglishVersion

Naturalgasvehicles-Vehiclefuellingappliances

Véhiculesfonctionnantaugaznaturel-BornesdeErdgasfahrzeuge-Fahrzeugbetankungsger?te

distributiondecarburantvéhicules

ThisEuropeanStandardwasapprovedbyCENon2May2021

CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEuropeanStandardthestatusofanationalstandardwithoutanyalteration.Up-to-datelistsandbibliographicalreferences

concerningsuchnationalstandardsmaybeobtainedonapplicationtotheCEN-CENELECManagementCentreortoanyCENmember.

ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).AversioninanyotherlanguagemadebytranslationundertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCEN-CENELECManagementCentrehasthesamestatusastheofficialversions.

CENmembersarethenationalstandardsbodiesofAustria,Belgium,Bulgaria,Croatia,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,ltaly,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,

Poland,Portugal,RepublicofNorthMacedonia,Romania,Serbia,Slovakia,Slovenia,Spain,Sweden,Switzerland,TurkeyandUnitedKingdom.

EUROPEANCOMMITTEEFORSTANDARDIZATION

COMITEEUROPEENDENORMALISATION

EUROP?ISCHESKOMITEEFURNORMUNG

CEN-CENELECManagementCentre:RuedelaScience23,B-1040Brussels

◎2021CENAllrightsofexploitationinanyformandbyanymeansreservedRef.No.EN17278:2021E

worldwideforCENnationalMembers.

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ContentsPage

Europeanforeword 4

1Scope 5

2Normativereferences 5

3Termsanddefinitions 7

4Abbreviations 10

5Riskmanagement 10

6Generalprinciplesofdesign 11

6.1Generalconstruction 11

6.2Generalrequirements 11

6.3Materials 12

6.4InternalsystemsandcomponentsofVFA 12

6.4.1Fueldeliverysystem 12

6.4.2Fuellingpressuredischargesystem 14

6.4.3Lockingsystem 14

6.4.4Compressor 14

6.4.5Gascontainmentsystem 14

6.4.6Temperaturecompensationsystem 15

6.4.7Dryer 16

6.4.8Safetymeans 16

6.4.9Pipework 17

6.5Permanentjoining 17

6.6Connectiontothedistributiongasnetwork 17

6.7Gascompositionandodorization 18

6.8Noiseattenuation 18

6.9Ventilation 18

7Enclosure 18

8Testing 19

8.1Genera 19

8.2Strengthpressure(proof)test 19

8.2.1General 19

8.2.2Procedureofstrengthpressure(proof)test 19

8.2.3Fatiguetest 20

8.3Leaktesting 20

8.3.1General 20

8.3.2Procedureforgasleakagetest 20

8.3.3Liquidleakagetesting 20

8.4Checkingofsafetydevices 20

8.5Periodicinspection 21

8.5.1General 21

8.5.2Periodicinspectionofcylinders 21

8.5.3Periodicinspectionoffuellinghose 21

9Installation 21

9.1General 21

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9.2VFAlocation 21

9.3VFAinstallationoutdoors 23

9.3.1VFAlocationoutdoors 23

9.3.2Installationconditions 23

9.3.3Ventilationconditions 23

9.4VFAinstallationindoors 23

9.4.1VFAlocationindoors 23

9.4.2Installationconditions 24

9.4.3Ventilationconditions 24

9.4.4Compatibilitywithothergasappliances 25

9.5Commissioning 25

10Operation 25

10.1General 25

10.2Installationandservicingmanual 25

10.2.1General 25

10.2.2Installationinstructions 26

10.2.3Maintenanceinstructions 27

10.2.4RemovalinstructionsforVFA 28

10.2.5Servicingandinspectioninstructions 28

10.3User'smanual 28

10.3.1General 28

10.3.2Frontcover 28

10.3.3Safetysection 29

10.3.4Additionalsafetyinformation 29

11UserofVFA 30

12Markingandlabelling 31

13Maintenanceandtestingfrequencyofgasdetectionsystem 31

AnnexA(informative)AdditionalsafetyprecautionsforindoorfuellingofNGVbymeansof

VFAinstalledoutdoors 32

AnnexZA(informative)RelationshipbetweenthisEuropeanStandardandtheEssential

requirementsofEUDirective2014/68/EU(PressureequipmentDirective)aimedto

becovered 33

Bibliography 34

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Europeanforeword

Thisdocument(EN17278:2021)hasbeenpreparedbyTechnicalCommitteeCEN/TC326"Naturalgasvehicles-Fuellingandoperation",thesecretariatofwhichisheldbyTSE.

ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextorbyendorsement,atthelatestbyDecember2021,andconflictingnationalstandardsshallbewithdrawnatthelatestbyDecember2021.

Attentionisdrawntothepossibilitythatsomeoftheelementsofthisdocumentmaybethesubjectofpatentrights.CENshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights.

ThisdocumenthasbeenpreparedundermandateM/071giventoCENbytheEuropeanCommissionandtheEuropeanFreeTradeAssociation,andsupportsessentialrequirementsoftheEuropeanDirective2014/68/EU.

ForrelationshipwithEuropeanDirective2014/68/EU,seeinformativeAnnexZA,whichisanintegralpartofthisdocument.

AccordingtotheCEN-CENELECInternalRegulations,thenationalstandardsorganisationsofthefollowingcountriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,Bulgaria,Croatia,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal,RepublicofNorthMacedonia,Romania,Serbia,Slovakia,Slovenia,Spain,Sweden,Switzerland,TurkeyandtheUnitedKingdom.

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1Scope

Thisdocumentcoversthedesignandmanufacturing,installationandtesting,operationandmaintenanceforvehiclefuellingappliances(VFAs)-theassembliesofthepressureequipmentwith

—maximumcompressorflowrate20scm/h,—maximumfuellingpressure200barat15℃,

intendedforthenon-commercialfuellingofnaturalgasvehicles(NGVs)withcompressednaturalgas(CNG).

ThisdocumentisapplicabletoVFAssuppliedwithnaturalgasasdefinedinlocalapplicablegascompositionregulationsorEN16723-2,orwithothergasesmeetingtheserequirementsincludingbiomethane,upgradedcoal-bedmethane(CBM)andgasfromliquefiednaturalgas(LNG)vaporizer(on-siteoroff-site).

IncaseofcombinationofthecertifiedVFAassemblywithadditionalequipment,suchasexternalstorageand/ordispenser,ENISO16923appliestothenewassembly-thecertifiedVFAassemblywithaddedexternalequipment.

IncaseofcombinationsofinterconnectedVFAassemblies,ENISO16923appliestothewholenewassemblyofthecertifiedVFAassemblies.

2Normativereferences

Thefollowingdocumentsarereferredtointhetextinsuchawaythatsomeoralloftheircontentconstitutesrequirementsofthisdocument.Fordatedreferences,onlytheeditioncitedapplies.Forundatedreferences,thelatesteditionofthereferenceddocument(includinganyamendments)applies.EN60204-1:2018,Safetyofmachinery-Electricalequipmentofmachines-Part1:Generalrequirements

EN60079-10-1:2015,Explosiveatmospheres-Part10-1:Classificationofareas-Explosivegasatmospheres

EN60079-29-2:2015,Explosiveatmospheres-Part29-2:Gasdetectors-Selection,installation,useandmaintenanceofdetectorsforflammablegasesandoxygen

EN60529:1991,Degreesofprotectionprovidedbyenclosures(IPCode)

EN13445-3:2014,Unfiredpressurevessels-Part3:Design

EN13480-3:2017,Metallicindustrialpiping-Part3:Designandcalculation

EN16723-2:2017,Naturalgasandbiomethaneforuseintransportandbiomethaneforinjectioninthe

naturalgasnetwork-Part2:Automotivefuelsspecification

ENISO4126-1:2013,1Safetydevicesforprotectionagainstexcessivepressure-Part1:Safetyvalves(ISO4126-1:2013)

ENISO4126-3:2006,Safetydevicesforprotectionagainstexcessivepressure-Part3:Safetyvalvesandburstingdiscsafetydevicesincombination

1AsimpactedbyamendmentsENISO4126-1:2013/A1:2016andENISO4126-1:2013/A2:2019.

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ENISO9809-1:2019,Gascylinders-Design,constructionandtestingofrefillableseamlesssteelgascylindersandtubes-Part1:Quenchedandtemperedsteelcylindersandtubeswithtensilestrengthlessthan1100MPa(ISO9809-1:2019)

ENISO9809-2:2019,Gascylinders-Design,constructionandtestingofrefillableseamlesssteelgascylindersandtubes-Part2:Quenchedandtemperedsteelcylindersandtubeswithtensilestrengthgreaterthanorequalto1100MPa(ISO9809-2:2019)

ENISO12100:2010,Safetyofmachinery-Generalprinciplesfordesign-Riskassessmentandriskreduction(ISO12100:2010)

ENISO13849-1:2015,Safetyofmachinery-Safety-relatedpartsofcontrolsystems-Part1:Generalprinciplesfordesign(ISO13849-1:2015)

ENISO14469:2017,Roadvehicles-Compressednaturalgas(CNG)refuellingconnector(ISO14469:2017)

ENISO15609-1:2019,Specificationandqualificationofweldingproceduresformetallicmaterials-

Weldingprocedurespecification-Part1:Arcwelding(ISO15609-1:2019)

ENISO16923:2018,Naturalgasfuellingstations-CNGstationsforfuellingvehicles(ISO16923:2016)

ENISO30013:2011,Rubberandplasticshoses-Methodsofexposuretolaboratorylightsources-Determinationofchangesincolour,appearanceandotherphysicalproperties(ISO30013:2011)

ENIEC31010:2019,Riskmanagement-Riskassessmenttechniques

ENIEC60079-0:2018,Explosiveatmospheres-Part0:Equipment-Generalrequirements

ISO18119:2018,Gascylinders—Seamlesssteelandseamlessaluminium-alloygascylindersandtubes—Periodicinspectionandtesting

ISO11119-1:2012,Gascylinders—Refillablecompositegascylindersandtubes—Design,constructionandtesting-Part1:Hoopwrappedfibrereinforcedcompositegascylindersandtubesupto4501

ISO11119-2:2012,Gascylinders—Refillablecompositegascylindersandtubes—Design,constructionandtesting-Part2:Fullywrappedfibrereinforcedcompositegascylindersandtubesupto4501withload-sharingmetalliners

ISO11119-3:2013,Gascylinders-Refillablecompositegascylindersandtubes—Design,constructionandtesting—Part3:Fullywrappedfibrereinforcedcompositegascylindersandtubesupto450Lwithnon-load-sharingmetallicornon-metallicliners

ISO11119-4:2016,Gascylinders—Refillablecompositegascylinders—Design,constructionandtesting—Part4:Fullywrappedfibrereinforcedcompositegascylindersupto1501withload-sharingweldedmetallicliners

ISO31000:2018,Riskmanagement—Guidelines

ISO15501-2:2016,Roadvehicles—Compressednaturalgas(CNG)fuelsystems—Part2:Testmethods

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3Termsanddefinitions

Forthepurposesofthisdocument,thefollowingtermsanddefinitionsapply.

ISOandIECmaintainterminologicaldatabasesforuseinstandardizationatthefollowingaddresses:

—IECElectropedia:availableat

/

-ISOOnlinebrowsingplatform:availableat

/obp

3.1

automaticrestart

systemdesignedtoinitiateafuellingsequencewithoutaphysicalactionbyapersonattheappliance

3.2

biomethane

gascomprisingprincipallymethane,obtainedfromeitherupgradingofbiogasormethanationofbio-syngas

[SOURCE:EN16723-2:2017,3.3]

3.3

breakawaydevice

couplingwhichseparatesatapredeterminedsectionwhenrequiredandeachseparatedsectioncontainsaself-closingshut-offvalvewhichsealsautomatically

[SOURCE:ENISO16923:2018,3.5]

3.4

burstpressure

pressurewhichcausesfailureandconsequentialfluidlossthroughthecomponentenvelope[SOURCE:ENISO16923:2018,3.8]

3.5

compressednaturalgas

naturalgasusedasafuelforautomotivevehiclestypicallycompressedupto20000kPainthegaseousphase

[SOURCE:EN16723-2:2017,3.5]

3.6

compressor

systemthatisinherenttotheVFA,whichincreasesthepressureofgasfromalowertoahigherlevel

3.7

cylinder

pressurevesseldesignedtostoreCNG

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3.8

domesticarea

areaorbuildingprimarilyusedasapermanentplaceofresidence,wheretheVFA(s)installedmaynotbeusedbytheowner/operatorforcommercialpurposesnormadeavailabletootheremployeesor

associatesoftheowner/operatorasacommercialresourceEXAMPLEAyardoragarageofaprivatehouse.

3.9

dryer

equipmentwhichdecreasesthewatervapourcontent(moisture)ofnaturalgas[SOURCE:ENISO16923:2018,3.18]

3.10

enclosure

structurebeingnotabuildingorcanopythatenclosesacomponentofthefuellingstationEXAMPLEHousing,containerandmachinecabinet.

[SOURCE:ENISO16923:2018,3.19]

3.11

examiner

personwhohasbeenappointedtoverifycompliancewiththeapplicablestandardNote1toentry:Incertaincases,anexternalindependentexaminercanberequired.

3.12

fuellingpressuredischargesystem

systemthatisinherenttotheVFA,whichisdesignedtoreducethepressureofCNGinthefuellingnozzletoallowsafedisconnectionfromtheNGV

3.13

fueldeliverysystem

systemthatisinherenttotheVFA,whichisintendedforCNGdeliveryfromtheVFAtothevehicle,includingafuellinghose,afuellingnozzleandabreak-awaydevice

3.14

gascontainmentsystem

systemthatisinherenttotheVFA,whichcomprisesatleastonecylinderanditsassociatedsafetydevices

3.15

hose

pipelineofflexiblematerialwithendfittingsattached

[SOURCE:ENISO16923:2018,3.31]

3.16

leakage

unintendedescapeofanyfluid(gas,liquid)

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3.17

lockingsystem

systemthatisinherenttotheVFA,whichisdesignedtoblocktheactivationofVFAfunctionsforunauthorizedaccess

3.18

maximumallowableoperatingpressure

maximumpressurethatthecomponentorsystemissubjectedtoduringnormaloperation

Note1toentry:MAOPistypicallynotgreaterthan90%ofthemaximumallowableworkingpressureofthecomponentorsystem.

[SOURCE:ENISO16923:2018,3.31]

3.19

maximumallowableworkingpressure

maximumpressuretowhichacomponentorsystemisdesignedtobesubjectedandwhichisthebasisfordeterminingthestrengthofthecomponentorsystem

[SOURCE:ENISO16923:2018,3.32]

3.20

naturalgas

complexgaseousmixtureofhydrocarbons,primarymethane,butgenerallyincludesethane,propaneandhigherhydrocarbons,andsomenon-combustiblegasessuchasnitrogenandcarbondioxide

Note1toentry:Naturalgascanalsocontaincomponentsorcontainmentssuchassulphurcompoundsand/orotherchemicalspecies.

[SOURCE:EN16723-2:2017,3.12]

3.21

non-domesticarea

areaorbuildingnotprimarilyusedasapermanentplaceofresidence,wheretheVFA(s)installedmaybeusedbytheowner/operatorforcommercialpurposesandmadeavailabletootheremployeesorassociatesoftheowner/operatorasacommercialresource

EXAMPLEAplotofland,aworkshoporagarageofasmallcommercialentity.

3.22

non-commercialfuelling

fuellingforownneeds,notfortheretailofCNG

3.23

occupiedspace

enclosedspaceintendedtobeoccupiedbypeopleforextendedperiodsoftime,e.g.,houses,apartments,hospitalsandoffices

3.24

periodicinspection

thoroughexaminationbyaqualifiedperson,duetoofficialrequirementsand/ormanufacturer'sprescriptionofwhichrecordsaremadetoprovidethebasisforacontinuingevaluation

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3.25

qualifiedperson

personwhosecompetenceandknowledgehavebeenobtainedbyeducation,trainingand/orrelevantpracticalexperience

Note1toentry:Inordertodemonstratethelevelofcompetenceandknowledge,aqualificationtestmayberequired.

[SOURCE:ENISO3834-1:2005,3.2]

3.26

temperaturecompensationsystem

systemordeviceintendedtolimitthemaximumfuellingpressure

3.27

user

personwhooperatestheVFA

3.28

vehiclefuellingappliance

appliance,beingmanufactured,testedandCEmarkedasasingleappliance,intendedfornon-commercialfuellingofNGVswithCNGenablingthefuellingdirectlyintoNGV'sonboardfueltank(s)

4Abbreviations

CNGcompressednaturalgas

MAWPmaximumallowableworkingpressure

NGVnaturalgasvehicle

PRDpressurereliefdevice

TPRDtemperaturepressurereliefdevice

VFAvehiclefuellingappliance

5Riskmanagement

Riskassessmentshallincludedesign,construction,operationandmaintenanceoftheVFA.Theriskassessmentprocessshallbeusedtoevaluatetheconsequencesofhazardouseventsandtodetermineappropriatemeansofriskreductionand/ormitigationofconsequences.

TheVFAshallbedesignedtominimizerisktousers,servicingpersonnel,properties,andenvironment.

Themanufacturershallfollowtheguidelinesfromsuitablestandards,e.g.:ENISO12100,ENIEC31010:2019,ISO31000:2018andENISO13849-1.Measurestoreducefireandexplosionrisksshallbeapplied,includingbutnotlimitedto:

a)preventionoftheformationofaflammableorexplosivemixture(gasleakages);

b)preventionofstaticchargebuild-up;

c)avoidanceofignitionsources;

d)mitigationoftheeffectsofafireorexplosion.

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ProtectionfromignitioninexplosiveatmospheresshallbebytheuseofprotectionsystemsdefinedintheENIEC60079-0.

6Generalprinciplesofdesign

6.1Generalconstruction

ThepossiblevariantsofVFAdesignareshowninFigure1.

a)"Singlebox"VFAb)"Modular"VFAKey

Abodyofa"singlebox"VFACmodule2ofa"modularVFA

Bmodule1ofa"modularVFADmodule3ofa"modularVFA

Figure1—GeneraldesignofVFA

TheVFAshallbeequippedwitha:

a)fueldeliverysystem;

b)fuellingpressuredischargesystem;

c)lockingsystem;

d)compressorand/orgascontainmentsystem

e)apressure,temperaturecompensationsystemasper6.4.6.

TheVFAcanalsobeequippedwithadryer;

TheVFAshallbecertifiedbyexaminerasaunit.VFAsaresubjecttotheEuropeanlegislationforpressureequipment.

6.2Generalrequirements

ThefollowingrequirementsapplyintheVFAdesign:

ThepressurevesselsoftheVFAshallcomplywithEN13445-3.

2)ThepipingoftheVFAshallcomplywithEN13480-3.

3)Thenumberofconnectionsandotherpossiblepointsofleakageorreleaseofgastotheatmosphereintheinstallationandequipmentshallbeminimized.

4)Thegenerationofthepossibilityofaconfinedexplosiveatmosphereshallbeavoided.

5)Fireandexplosionriskpreventionshalltakeintoaccountforeseeablemalfunctionsandmisuse.

6)Themountingofequipmentshallbesuitableforlocalconditions.

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7)BarriersorothermechanismstoprotecttheVFAfromcollisiondamageshallbeprovided,iftheVFAisexposedtotheriskofvehiclecollision.

8)TheVFAshallshutdownsafelyintheeventofalossofpower.

9)TheVFAshallhavemeansofensuringthatoilcarryoverfromthecompressor,dust,waterandothercontaminantsinthegasstreammeettherequirementsofEN16723-2.

10)Thespecificclimaticconditionsofthesitelocationandexpectedminimumandmaximumtemperaturesduringoperationshallbetakenintoaccount.

11)Meansensuringamaximumtemperaturecompensatedfuellingpressureof200barat15℃shallbeprovided.

AllVFAcomponents,pipingandfittingsshallbemanufactured,markedandassembledinamannersuitablefortheirintendeduse,applyingtheprinciplesofsoundengineeringpractice,tobesuitableforthefullrangeofpressures,temperatures,weatherconditionsandloadingswhichcanoccurundernormalandfaultconditions.

6.3Materials

Allmaterialsshallbe:

a)suitablefortheirintendedapplication;

b)resistanttotheratedtemperatureextremes,corrosion,moisture,naturalgasorbiomethaneandaging.

ThemanufactureroftheVFAshallensurethatallmaterialsusedfortheconstructionofthecomponentsconformtotheirspecifications.ThemanufactureroftheVFAshalldocumentthecompliancewiththematerialspecificationsbyusingmaterialswhicheithercomplywithharmonizedstandardsorarecoveredbyEuropeanapprovalofpressureequipmentmaterials.

6.4InternalsystemsandcomponentsofVFA

6.4.1Fueldeliverysystem

General

ThefueldeliverysystemisintendedtoprovideNGVfuellinguptoamaximumtemperaturecompensatedfuellingpressure200barat15℃.Thefueldeliverysystemshallcontainafuellinghosewithfuellingnozzleandbreak-awaydevice.

Fuellinghose

Thefollowingrequirementsapplytoafuellinghose:

ThefuellinghoseshallbedesignedandmanufacturedforCNGservice.Thefuellinghoseshallbepermanentlymarkedaccordingly.

2)Thefuellinghoseshallbesuitableforuseatatemperaturerangeof-40℃to65℃.

3)TheMAWPshallbepermanentlymarkedonthefuellinghosebythemanufacturer.

4)Thefuellinghoseshallbesubjecttothepropertesting.Testingshallbedoneinaccordancewithapplicableregulations.

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5)Thefuellinghosematerialsshallberesistanttothedegradingeffectsofcommonautomotivefluidswithwhichtheycancomeincontact.

NOTE1Fuellinghosematerialsthatcomplywithoxygenageingandnon-metallicmaterialimmersionof

UN/ECER110isconsideredtoconformtothisrequirement.

6)Thefuellinghoseshallbeconstructedinsuchamannerthatpermeationorleakagefromtheinnertubedoesnot