Standard for Installation of Fire Safety Devices based on Use and Occupancy Article 141
Gas leakage detectors shall be installed at proper locations convenient for inspection and repair on the ceiling or wall depending on the characteristics of the gas and pursuant to the following requirements:1.Where the specific gravity of gas to air is less than 1, the following provisions shall be observed:(1)Detector shall be installed within a horizontal distance not more than 8m away from the gas burning appliances or from the position the gas pipe goes through the wall. Where the floorslabs have beams with a net height not less than 60cm or other similar constructions, detectors shall be installed just nearby the gas burning appliances or the positions the gas goes through the wall.(2)Where there are air inlets on the ceiling of the room where the gas burning appliances are, detectors shall be installed within 1.5m away from the air inlets separated by the beams with a net height not less than 60cm or other similar constructions between the gas burning appliances or the location the gas pipe goes through the wall and the ceiling.(3)The lower end of detector shall be within 30cm under the ceiling.2.Where the specific gravity of gas to air is not less than 1, the following provisions shall apply:(1)Detector shall be installed within a horizontal distance not more than 4m away from the gas burning appliances or from the position the gas pipe goes through the wall.(2)The upper end of detector shall be within 30cm above the floor.3. The commencing and terminal points for calculating the horizontal distance are as follows:(1)For a gas-burning appliance, the point is the center of the appliance.(2)For a position the gas pipe goes through the wall, the point is the center of the gas pipe at the position the gas pipe goes through the wall.
中文原文 各類場所消防安全設備設置標準第141條
瓦斯漏氣檢知器，依瓦斯特性裝設於天花板或牆面等便於檢修處，並符合下列規定：
一、瓦斯對空氣之比重未滿一時，依下列規定：
（一）設於距瓦斯燃燒器具或瓦斯導管貫穿牆壁處水平距離八公尺以內。
但樓板有淨高六十公分以上之樑或類似構造體時，設於近瓦斯燃燒器具或瓦斯導管貫穿牆壁處。
（二）瓦斯燃燒器具室內之天花板附近設有吸氣口時，設在距瓦斯燃燒器具或瓦斯導管貫穿牆壁處與天花板間，無淨高六十公分以上之樑或類似構造體區隔之吸氣口一點五公尺範圍內。
（三）檢知器下端，裝設在天花板下方三十公分範圍內。
二、瓦斯對空氣之比重大於一時，依下列規定：
（一）設於距瓦斯燃燒器具或瓦斯導管貫穿牆壁處水平距離四公尺以內。
（二）檢知器上端，裝設在距樓地板面三十公分範圍內。
三、水平距離之起算，依下列規定：
（一）瓦斯燃燒器具為燃燒器中心點。
（二）瓦斯導管貫穿牆壁處為面向室內牆壁處之瓦斯配管中心處。
一、瓦斯對空氣之比重未滿一時，依下列規定：
（一）設於距瓦斯燃燒器具或瓦斯導管貫穿牆壁處水平距離八公尺以內。
但樓板有淨高六十公分以上之樑或類似構造體時，設於近瓦斯燃燒器具或瓦斯導管貫穿牆壁處。
（二）瓦斯燃燒器具室內之天花板附近設有吸氣口時，設在距瓦斯燃燒器具或瓦斯導管貫穿牆壁處與天花板間，無淨高六十公分以上之樑或類似構造體區隔之吸氣口一點五公尺範圍內。
（三）檢知器下端，裝設在天花板下方三十公分範圍內。
二、瓦斯對空氣之比重大於一時，依下列規定：
（一）設於距瓦斯燃燒器具或瓦斯導管貫穿牆壁處水平距離四公尺以內。
（二）檢知器上端，裝設在距樓地板面三十公分範圍內。
三、水平距離之起算，依下列規定：
（一）瓦斯燃燒器具為燃燒器中心點。
（二）瓦斯導管貫穿牆壁處為面向室內牆壁處之瓦斯配管中心處。