Non-metallic sheathed wire is great for use in indoor residential wiring, including branch circuits for outlets and switches. It may be installed in both exposed and concealed work in normally dry locations, and in air voids of masonry block or tile walls which are not subject to excessive moisture or dampness. It can be installed in locations with temperatures up 194°F(90°C), but with the ampacity limited to that of 140°F(60°C) conductors.