BSISO16750-2:2010ICS43.040.10NOCOPYINGWITHOUTBSIPERMISSIONEXCEPTASPERMITTEDBYCOPYRIGHTLAWBRITISHSTANDARDRoadvehicles—EnvironmentalconditionsandtestingforelectricalandelectronicequipmentPart2:ElectricalloadsThisBritishStandardwaspublishedundertheauthorityoftheStandardsPolicyandStrategyCommitteeon31March2010©BSI2010ISBN9780580608711Amendments/corrigendaissuedsincepublicationDateCommentsBSISO16750-2:2010NationalforewordThisBritishStandardistheUKimplementationofISO16750-2:2010.ItsupersedesBSISO16750-2:2006whichiswithdrawn.TheUKparticipationinitspreparationwasentrustedtoTechnicalCommitteeAUE/16,Electricalandelectronicequipment.Alistoforganizationsrepresentedonthiscommitteecanbeobtainedonrequesttoitssecretary.Thispublicationdoesnotpurporttoincludeallthenecessaryprovisionsofacontract.Usersareresponsibleforitscorrectapplication.CompliancewithaBritishStandardcannotconferimmunityfromlegalobligations.BSISO16750-2:2010ReferencenumberISO16750-2:2010(E)©ISO2010INTERNATIONALSTANDARDISO16750-2Thirdedition2010-03-15Roadvehicles—Environmentalconditionsandtestingforelectricalandelectronicequipment—Part2:ElectricalloadsVéhiculesroutiers—Spécificationsd'environnementetessaisdel'équipementélectriqueetélectronique—Partie2:ContraintesélectriquesBSISO16750-2:2010ISO16750-2:2010(E)PDFdisclaimerThisPDFfilemaycontainembeddedtypefaces.InaccordancewithAdobe'slicensingpolicy,thisfilemaybeprintedorviewedbutshallnotbeeditedunlessthetypefaceswhichareembeddedarelicensedtoandinstalledonthecomputerperformingtheediting.Indownloadingthisfile,partiesacceptthereintheresponsibilityofnotinfringingAdobe'slicensingpolicy.TheISOCentralSecretariatacceptsnoliabilityinthisarea.AdobeisatrademarkofAdobeSystemsIncorporated.DetailsofthesoftwareproductsusedtocreatethisPDFfilecanbefoundintheGeneralInforelativetothefile;thePDF-creationparameterswereoptimizedforprinting.EverycarehasbeentakentoensurethatthefileissuitableforusebyISOmemberbodies.Intheunlikelyeventthataproblemrelatingtoitisfound,pleaseinformtheCentralSecretariatattheaddressgivenbelow.COPYRIGHTPROTECTEDDOCUMENT©ISO2010Allrightsreserved.Unlessotherwisespecified,nopartofthispublicationmaybereproducedorutilizedinanyformorbyanymeans,electronicormechanical,includingphotocopyingandmicrofilm,withoutpermissioninwritingfromeitherISOattheaddressbeloworISO'smemberbodyinthecountryoftherequester.ISOcopyrightofficeCasepostale56•CH-1211Geneva20Tel.+41227490111Fax+41227490947E-mailcopyright@iso.orgWeb©ISO2010–AllrightsreservedBSISO16750-2:2010ISO16750-2:2010(E)©ISO2010–AllrightsreservediiiContentsPageForeword............................................................................................................................................................iv1Scope......................................................................................................................................................12Normativereferences............................................................................................................................13Termsanddefinitions...........................................................................................................................14Testsandrequirements........................................................................................................................14.1General...................................................................................................................................................14.2Directcurrentsupplyvoltage...............................................................................................................24.3Overvoltage............................................................................................................................................34.4Superimposedalternatingvoltage......................................................................................................44.5Slowdecreaseandincreaseofsupplyvoltage..................................................................................64.6Discontinuitiesinsupplyvoltage........................................................................................................64.7Reversedvoltage.................................................................................................................................144.8Groundreferenceandsupplyoffset.................................................................................................154.9Opencircuittests................................................................................................................................154.10Shortcircuitprotection.......................................................................................................................164.11Withstandvoltage................................................................................................................................174.12Insulationresistance........................................................................