R.I. Gen. Laws § 5-6-3: Devices and appliances inserted by unlicensed persons.

Nothing in this chapter shall be construed to forbid the insertion in electrical circuits, by unlicensed persons, of devices or appliances including, but not limited to, microwaves, refrigerators, ranges, televisions, light bulbs, and the like that are properly designed for that insertion and for which proper wire and insertion devices are installed.