Extend outlet with SJ cable

4x4FF wrote:
I need to run an additional outlet in the front closet of my 5er. Any problem with using 12/3 SJ type wire (stranded conductor with a rubberized sheath)? It sure would make installing it easier. Of course it would all be inside a closet and clamped properly. It would just be extended from another outlet for use for phone chargers etc,

Thanks,
Steve

That's what is used in my trailer from the factory for the wire runs to 120V circuits in the slide. It isn't in conduit either. So I'm assuming codes allow it to be used in applications where there is movement of the connection.

While code probably doesn't allow it's use in walls, in the open it may be ok.