41
FS20X Fire and Flame Detectors
False Alarm Immunity
The second column in this table shows the minimum distance at which a detector
exposed to various false fire sources did not alarm or show any signs of instability.
The third column shows the sensitivity to a one-foot square n-Heptane reference fire
in the presence of those false fire sources.
False Alarm Immunity
False Fire Source
Minimum Distance
with No Alarm
Sensitivity to Reference Fire
Direct Sunlight No alarm 50 ft (15.24 m)
Modulated Sunlight No alarm 25 ft (7.62 m)
Modulated Arcwelding 9 ft 9 in (3 m)
Source at 30 ft (9.14 m)
Fire at 30 ft (9.14 m)
Continuous Arcwelding 9 ft 9 in (3 m)
Source at 30 ft (9.14 m)
Fire at 30 ft (9.14 m)
Resistive Electric Heater 1 ft (30.48 cm)
Source at 3 ft (91.44 cm)
Fire at 200 ft (60.96 m)
Flourescent Lamp 1 ft (30.48 cm)
Source at 3 ft (91.44 cm)
Fire at 200 ft (60.96 m)
Halogen Lamp 1 ft (30.48 cm)
Source at 3 ft (91.44 cm)
Fire at 200 ft (60.96 m)
Sodium Vapor Lamp 1 ft (30.48 cm)
Source at 3 ft (91.44 cm)
Fire at 200 ft (60.96 m)
Pelican Flashlight 1 ft (30.48 cm)
Source at 3 ft (91.44 cm)
Fire at 200 ft (60.96 m)
Incandescent Lamp 1 ft (30.48 cm)
Source at 3 ft (91.44 cm)
Fire at 200 ft (60.96 m)
To Next Page
Loading...
