8.12.5.3.2 Bottom Chords of Bar Joists or Open Trusses.
ESFR sprinklers shall be positioned a minimum of 1 ft
(300 mm) horizontally from the nearest edge to any bottom
chord of a bar joist or open truss.
8.12.5.3.2.1 The requirements of 8.12.5.3.2 shall not apply
where upright sprinklers are located over the bottom chords
of bar joists or open trusses that are 4 in. (100 mm) maximum
in width.
8.12.5.3.3* For pipes, conduits, or groups of pipes and con-duit to be considered individual, they must be separated fromthe closest adjacent pipe, conduit, cable tray, or similar ob-structions by a minimum of three times the width of the adja-cent pipe, conduit, cable tray, or similar obstruction.
ESFR sprinklers shall be positioned a minimum of 1 ft
(300 mm) horizontally from the nearest edge to any bottom
chord of a bar joist or open truss.
8.12.5.3.2.1 The requirements of 8.12.5.3.2 shall not apply
where upright sprinklers are located over the bottom chords
of bar joists or open trusses that are 4 in. (100 mm) maximum
in width.
8.12.5.3.3* For pipes, conduits, or groups of pipes and con-duit to be considered individual, they must be separated fromthe closest adjacent pipe, conduit, cable tray, or similar ob-structions by a minimum of three times the width of the adja-cent pipe, conduit, cable tray, or similar obstruction.
