Currently electrical conduits have a lot less intelligence than duct or piping, which both have assignable systems to help group runs together. This makes it challenging to manage large numbers of conduits during design, as manually assigned feeder names won't stay applied to the entire run while modifying or adding new segments to the conduit run.
Various workarounds exist such as grouping each conduit run into a named assembly, using pipe and pipe systems in place of conduit or re-purposing the conduit type name parameter to name each instance, but after living with this since Revit MEP 2009 it would be great to see more intelligence added to electrical conduits, starting with a simple feeder name.