现代建筑正在逐步呈现“高、大、全、新”的特点,也就是:由于用地紧张建筑物的层数和高度越来越高;建筑物的面积和体积越来越大;建筑物的使用功能和服务设施越来越全;建筑物广泛地应用新材料、新结构、新技术。正是由于上述特点,人们通常把一座建筑形象地比作一座城市。“城”里的垂直和水平交通越来越复杂,内部人员流量也越来越大,特别是公共场所,包括地下建筑,封闭空间和不能断电的地方,一旦发生火灾、爆炸和地震等突发事件,正常电源往往产生故障或者必须断开电源,致使正常照明熄灭,这时随即点亮的应急照明对人员的疏散,对保障人身安全,对进行着的生产、工作及时操作和处理,有效地制止灾害或故障的蔓延具有非常重要的作用。建筑工程中的应急 Modern buildings are gradually exhibiting the characteristics of “high, large, complete, and new”, that is, the number of floors and heights of buildings are getting higher and higher; the area and volume of buildings are increasing; the use of buildings is increasing. The functions and service facilities are more and more complete; buildings are widely used with new materials, new structures, and new technologies. Because of these characteristics, people often compare a building to a city. The vertical and horizontal traffic in the “City” is becoming more and more complex, and the flow of internal personnel is also getting larger and larger, especially in public places, including underground buildings, closed spaces, and areas where power cannot be cut off. Once a fire, explosion and earthquake strike In the event of an incident, the normal power supply often fails or the power supply must be disconnected, causing the normal lighting to go out. Then the emergency lighting that is lit up immediately evacuates the personnel, and it is effective for ensuring personal safety and timely operation and processing of the ongoing production and work. Preventing the spread of disasters or failures has a very important role to play. Emergency in construction project