For primarily in act wiring, including branch circuits for outlets, switches, etc.. May be in both exposed and concealed work in normally dry-eyed locations. May be in air voids of masonry block or tile walls where these walls are not national to extravagant wet or dampness. May be in locations with temperatures up to 90 DegreeC, but with the ampacity restricted to that of 60 DegreeC conductors. Added : For use primarily in act wiring for branch circuits supplying outlets set in bedrooms and extra areas.