362-Electrical Nonmetallic Tubing
I. General
the Installation of Sprinkler Systems, on all floors, ENT shall be permitted to be used within walls, floors, and ceilings, exposed or concealed, in buildings exceeding three floors abovegrade.
FPN: A finish rating is established for assemblies containing combustible (wood) supports. The finish rating is defined as the time at which the wood stud or wood joist reaches an average temperature rise of
121°C (250°F) or an individual temperature of 163°C
(325°F) as measured on the plane of the wood nearest