30 CFR § 75.1101-14 Installation of dry powder chemical systems.
(a) Self-contained dry powder chemical systems shall be installed to
protect each belt-drive, belt takeup, electrical-controls, gear reducing
units and 50 feet of fire-resistant belt or 150 feet of non-fire-resistant
belt adjacent to the belt drive.
(b) The fire-control components of each dry powder chemical system
shall be a type approved by the Underwriters' Laboratories, Inc., or Factory
Mutual Engineering Corp.
(c) The components of each dry powder chemical system shall be
located so as to minimize the possibility of damage by roof fall or by the
moving belt and its load.
