§108.407. Detectors for electric fire detection system.
46 C.F.R. § 108.407
Each detector in an electric fire detection system must be located where—
No portion of the overhead of a space protected is more than 3 meters (10 feet) from a detector;
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
Damage to the detector is unlikely to occur if it is not protected.
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).
Notes, amendments, and revision history
Authority
Authority: 43 U.S.C. 1333; 46 U.S.C. 3102, 3306; DHS Delegation No. 00170.1, Revision No. 01.4.
Source
Source: CGD 73-251, 43 FR 56808, Dec. 4, 1978, unless otherwise noted.