Standard for Installation of Fire Safety Devices based on Use and Occupancy Article 63
Spraying area refers to the radiation area of a deluge valve when being actuated, and each area is 50m2 in principle.Where there are two or more foresaid spraying areas, the diameter of main pipe shall be not less than 100 mm.
中文原文 各類場所消防安全設備設置標準第63條
放射區域，指一只一齊開放閥啟動放射之區域，每一區域以五十平方公尺為原則。
前項放射區域有二區域以上者，其主管管徑應在一百毫米以上。
前項放射區域有二區域以上者，其主管管徑應在一百毫米以上。