In my area, it's against code to run sheathed electrical cable inside conduit. It's a local restriction only. It can be done outside but not inside a structure.
The NEC does allow sheathed electrical cable in conduit. However, depending on the size of the conduit and the number of runs of sheathed electrical cable, you may have to de-rate the wire, depending on the fill.
Again, my apologies for any confusion! And thanks for bringing this to my attention.