Fire emergency lighting and evacuation indication system The fire emergency lighting and evacuation indication system is a fire protection system that assists in the safe evacuation of personnel and firefighting operations. Its main function is to provide necessary illumination conditions and correct evacuation indication information for personnel safety evacuation and firefighting rescue operations in emergency situations such as fires. Today, we will share the relevant content of fire emergency lighting and evacuation indication system. 1、 System classification 1. Centralized control system refers to a fire emergency lighting and evacuation indication system that is equipped with an emergency lighting controller, which centrally controls and displays the working status of the emergency lighting centralized power supply or emergency lighting distribution box and its matched fire emergency lighting fixtures. 2. Non centralized control system refers to a fire emergency lighting and evacuation indication system that is not equipped with an emergency lighting controller and is controlled by the emergency lighting centralized power supply or emergency lighting distribution box to connect fire emergency lighting fixtures. Explanation: Emergency lighting distribution box refers to a power supply and distribution device that supplies power to self-contained fire emergency lighting fixtures; Emergency lighting centralized power supply refers to a power supply device that stores energy in batteries and supplies power to centralized power type fire emergency lighting fixtures. 2、 Evacuation lighting settings Except for residential buildings with a height of less than 27m, evacuation lighting should be installed in the following areas of civil buildings, factories, and Class C warehouses: 1) Enclosed stairwells, smoke proof stairwells and their front rooms, front rooms or shared front rooms of fire elevators, refuge walkways, and refuge floors (rooms). 2) Audience halls, exhibition halls, multifunctional halls, and densely populated places such as business halls, restaurants, and studios with a building area greater than 200 square meters. 3) Underground or semi underground public activity venues with a building area greater than 100 square meters. 4) Evacuation corridors within public buildings. 5) Production sites and evacuation corridors in densely populated factories. 2. Evacuation lighting fixtures should be installed at the top of the exit, on the upper part of the wall, or on the ceiling; Backup lighting fixtures should be installed on the upper part of the wall or ceiling. 3、 Setting of light evacuation signs Public buildings, residential buildings with a height greater than 54m, high-rise factories (warehouses), and Class A, B, and C single and multi story factories should be equipped with light evacuation signs and comply with the following regulations: It should be set directly above the evacuation doors in safety exits and densely populated areas. It should be installed on walls or floors below 1.0m above ground level at evacuation corridors and their corners. The distance between light evacuation signs should not exceed 20m; For bag shaped walkways, it should not exceed 10m; In the corner area of the aisle, it should not exceed 1.0m. The following buildings or places should install visually continuous light evacuation signs or light storage evacuation signs on the ground of evacuation corridors and main evacuation routes: Exhibition buildings with a total construction area greater than 8000 square meters. Above ground shops with a total construction area greater than 5000 square meters. Underground or semi underground shops with a total construction area greater than 500 square meters. A venue for singing, dancing, entertainment, screening, and recreational activities. Cinemas and theaters with over 1500 seats, and sports halls, auditoriums, or auditoriums with over 3000 seats. The public areas of waiting and boarding halls and terminals with a building area greater than 3000 square meters in stations, dock buildings, and civil airport terminals. 4、 Ground level illumination The ground level illumination of evacuation lighting in buildings shall comply with the following regulations: For evacuation corridors, it should not be lower than 1.0lx. For densely populated areas and refuge floors (rooms), it should not be lower than 3.0lx; For elderly care facilities, ward buildings, or refuge rooms in surgical departments, the dose should not be less than 10.0lx. For stairwells, front rooms, shared front rooms, and refuge walkways, the illuminance should not be less than 5.0 lux; For densely populated areas, elderly care facilities, stairwells, front rooms or shared front rooms in ward buildings or operating departments, and refuge corridors, the illuminance should not be less than 10.0lx. Backup lighting should be installed in the fire control room, fire water pump room, self provided generator room, distribution room, smoke control room, and fire equipment room that still need to work normally in case of a fire. The illumination of their working surfaces should not be lower than that of normal lighting.