Standard for Installation of Fire Safety Devices based on Use and Occupancy Article 130
Indicating lamps shall be installed in places equipped with manual alarm equipments and shall keep alight at other times. The lamp shall form an angle of 15°with the mounting surface, and there shall be no mask shielding the lamp within 10m away from the lamp.
中文原文 各類場所消防安全設備設置標準第130條
設有火警發信機之處所，其標示燈應平時保持明亮，標示燈與裝置面成十五度角，在十公尺距離內須無遮視物且明顯易見。