S.C. Code Regs. § 8-1246 - IRC P2904.2.4.2.1 Additional requirements for pendent sprinklers
Pendent sprinklers within 3 feet (915 mm) of the center of a ceiling fan, surface mounted ceiling luminaire or similar object shall be considered to be obstructed, and additional sprinklers shall be installed.
Exception: Pendent sprinklers within 3 feet (915 mm) of the center of a ceiling fan shall not be considered to be obstructed if the total area of the fan blades does not exceed more than 50% of the plan area view.
Notes
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