ISOBS21780:2020"Roadvehicles-48Velectricalsupply-Electricalrequirementsandtests"isacomprehensivestandardthatspecifiestheelectricalrequirementsandtestmethodsfor48Vpowersupplysystemsinroadvehicles.The53-pagedocumentcoversvariousaspectsincludingvoltageranges,performancecriteria,andtestprocedurestoensurethereliabilityandsafetyof48Velectricalsystemsinautomotiveapplications.Itprovidesdetailedguidelinesformanufacturersandsupplierstodesign,test,andvalidate48Vcomponentsandsystems,ensuringcompatibilityandinteroperabilityacrossdifferentvehicleplatforms.Thestandardisparticularlyrelevantformodernvehiclesincorporatingmildhybridtechnologies,where48Vsystemsareincreasinglyusedtoimprovefuelefficiencyandreduceemissionswhilesupportinghigherelectricalloads.
