How many smoke alarms are installed in the 2000 square meter workshop?!
Drawing arrangement: detector protection radius by 6.5 meters, endpoint detector from the side wall 3~7 meters, two detectors between 13 meters, in turn layout, layout is how much.
Beam system effects: when the beam is between 200mm~600mm, see the specification. When the area is greater than 600mm, the area separated by the beam is regarded as an independent detection area setting detector.
Estimation method: N=S / (K * A)Type: N: (a) the number of detector; S: plant area (M -); A: single detector protection area (M -); K: correction coefficient.The plant height is generally greater than 6 meters, more than 12 meters (more than 12 meters should be used in infrared detector, smoke detector) of each protected area - 80m. The correction factor is 0.9N=S / (K * A) =2000 / (0.9 x 80) = 28 (a)Because of the influence of workshop * width, the amount of calculation is often less than the actual number of layout, and the layout of drawing is more accurate.
Detector installation height, roof slope, roof beam system, plant layout (length * width), etc., can be specified in the design code of automatic fire alarm system;
