Standard for Installation of Fire Safety Devices based on Use and Occupancy Article 71

Foam nozzle shall be equipped pursuant to the following provisions:1.Foam-water nozzle shall be used in hangar and other places, and at least one nozzle shall be equipped for every 8m2 of floor area, thus covering the protected objects in the effective range.2.Foam nozzle shall be used in garage, indoor parking area and other places, and at least one nozzle shall be equipped for every 9m2 of floor area, thus covering the protected objects in the effective range.3.The horizontal distance from any point of the spraying area to the foam nozzle shall be not more than 2.1m.4.Where there are beams aside, foam nozzle may be equipped pursuant to 47.1(7).5.Where there are multi-level parking facilities in an indoor parking area, the mounting surface of the top level shall be equipped with foam nozzle, and matching pipe shall be extended to between the vehicles, enabling the nozzle to give off foam toward the lower parking platform. But it is allowable that matching pipe for sensing nozzle is not extended.6.Where foam nozzle for the above-mentioned multi-level parking facilities can’t be equipped on parking platforms other than the top level due to the construction, the matching pipe shall form an individual unit pursuant to the parking construction, and foam nozzles shall be equipped around to spray foam to the whole ambient area.