What's the component in question John? I don't think you need much current so an outdoor type cord used for things like power tools and the like should be okay. These things are heavy though so if anything I would look at changing the wall receptacles or even the plugs to more robust types than the typical household stuff. Hospital grade is always good because they are supposed to prevent arcing. If you're thinking more from an audiophile perspective and current is not the only concern and now you're worrying about things like shielding, then you might consider a longer shielded cord and use that into your conditioner.
For shows I have a long Shunyata Python and a Hydra 2 as my extension cord. It has come in very handy over the years. I don't recall anybody ever complaining.