Pset_TractionPowerSystem Properties of a traction power system. The property is associated to the predefined type ELECTRICAL of _IfcDistributionSystem_, and is used to characterise systems such as railway electrical distribution networks used to provide energy for rolling stock. IfcDistributionSystem/ELECTRICAL IfcDistributionSystem/ELECTRICAL PowerSupplyMode Power supply mode of the equipment or system. AC DC OTHER NOTKNOWN UNSET AC Ac DC Dc OTHER required category not on scale (other) Value is not listed. NOTKNOWN Value is unkown (unknown) Value is unknown. UNSET Value has not been specified (unset) Value has not been specified. ElectrificationType Indicates the type of railway electrification. NON_ELECTRIFIED AC DC OTHER NOTKNOWN UNSET NON_ELECTRIFIED AC Ac DC Dc OTHER required category not on scale (other) Value is not listed. NOTKNOWN Value is unkown (unknown) Value is unknown. UNSET Value has not been specified (unset) Value has not been specified. RatedFrequency Frequency of the AC electric power supply when the device or system reaches its optimum operating condition. NominalVoltage The optimum voltage for the electrical appliance or system.