46 C.F.R. § 108.407 Detectors for electric fire detection system.
Title 46 - Shipping
(a) Each detector in an electric fire detection system must be located where— (1) No portion of the overhead of a space protected is more than 3 meters (10 feet) from a detector; (2) Beams and girders extending below the ceiling of the space protected and any other obstructions do not detract from the effectiveness of the detector; and (3) Damage to the detector is unlikely to occur if it is not protected. (b) Each detector must be set to activate at not less than 57° C (135° F) and at not more than 73° C (165° F), except that if a space normally has a high ambient temperature each detector may be set to activate at not less than 80° C (175° F) and not more than 107° C (225° F).
Title 46: Shipping
PART 108—DESIGN AND EQUIPMENT
Subpart D—Fire Extinguishing Systems
§ 108.407 Detectors for electric fire detection system.
