EN50119:2020isaEuropeanstandardthatspecifiesrequirementsfortheoverheadcontactlinesusedinfixedelectricaltractionsystemsforrailways.Itcoversdesign,construction,operation,andmaintenancetoensuresafety,reliability,andinteroperability.ThestandardappliestobothACandDCsystemsandaddressescomponentslikewires,supports,insulators,andelectricalclearances.Italsoincludesguidelinesforenvironmentalconditionsandmechanicaldurability.Compliancehelpsensureefficientandsafepowersupplyforelectrictrains.