GB 50116-2013 第3.5.1条
| The installation of fire emergency broadcast loudspeakers shall comply with the following provisions: In civil buildings, loudspeakers shall be installed in public places such as corridors and halls. The rated power of each loudspeaker shall not be less than 3W, and the number of loudspeakers shall ensure that the straight-line distance from any point within a fire compartment to the nearest loudspeaker is not greater than 25m, and the distance from the end of a corridor to the nearest loudspeaker shall not be greater than 12.5m.