1. Installation of fire detectors

Open or closed stairwells should be separately divided into detection areas, and a fire detector should be installed every 2-3 floors.

The front room (including the smoke proof staircase front room, the fire elevator front room, and the front room shared by the fire elevator and smoke proof staircase) and the corridor should be separately divided into detection areas, especially when the front room is connected to the elevator shaft, evacuation staircase, and corridor. In the event of a fire, smoke is more likely to gather or flow through, making it a necessary passage for personnel evacuation and firefighting. Therefore, fire detectors should be installed. For general elevators, although the front room is not a necessary place for personnel evacuation, it is connected to the elevator shaft and smoke is prone to accumulate or flow in the event of a fire. Therefore, it is advisable to separate detection areas and install fire detectors. The front room (including the smoke proof staircase front room, the fire elevator front room, and the front room shared by the fire elevator and smoke proof staircase) and the corridor should be separately divided into detection areas, especially when the front room is connected to the elevator shaft, evacuation staircase, and corridor. In the event of a fire, smoke is more likely to gather or flow through, making it a necessary passage for personnel evacuation and firefighting. Therefore, fire detectors should be installed. For general elevators, although the front room is not a necessary place for personnel evacuation, it is connected to the elevator shaft and smoke is prone to accumulate or flow in the event of a fire. Therefore, it is advisable to separate detection areas and install fire detectors. The cable shaft should be separately divided into detection areas and equipped with fire detectors. One possibility is that the vertical shaft may form a pathway for pulling out fireworks; The second possibility is that in the event of a fire, the fire may spread along the cable. In order to prevent the formation of smoke and fire channels in vertical shafts and prevent the spread of fire along cables in the event of a fire, the "Code for Fire Protection Design of High rise Civil Buildings" and the "Code for Electrical Design of Civil Buildings" respectively provide detailed and specific regulations on the selection of wires or cables in buildings. However, considering the difficulty and current situation of specific implementation, it is necessary to install fire detectors in cable shafts, and to comply with the fire separation requirements of vertical shafts, one should be installed every 2-3 floors or each floor.

The elevator machine room should be equipped with fire detectors. One is that elevators are important vertical transportation vehicles; Secondly, there is a risk of fire in the elevator machine room; The third elevator shaft has necessary openings, such as floor door openings, ventilation holes, permanent openings between elevator machine rooms or pulleys, etc; Fourthly, in the event of a fire, the elevator shaft often becomes a pathway for the spread of the fire, which can easily threaten the facilities in the elevator machine room. Therefore, it is necessary to install fire detectors in the elevator machine room, and fire detectors should be installed on the top of the elevator shaft.

2. Setting of manual fire alarm button

The front rooms of each floor (including the smoke proof stairwell front room, fire elevator front room, and the front room shared by fire elevators and smoke proof stairwells) are necessary places for personnel evacuation and fire fighting in the event of a fire, and should be the preferred location for setting up manual fire alarm buttons. In addition, manual fire alarm buttons should also be installed in the front room of general elevators.

In public activity areas (including halls, hallways, restaurants, multifunctional halls, etc.) and main passages, people are concentrated and are the main evacuation routes. Therefore, manual fire alarm buttons should be installed at the main entrances and exits of these public activity areas; Secondly, a manual fire alarm button should be installed in the main passage, stating that the distance from any location within a fire compartment to the nearest manual fire alarm button should not exceed 30 meters.

3. Installation of Fire Emergency Broadcasting Speakers

Public places such as corridors, halls, and restaurants are densely populated and are the main evacuation routes. Therefore, fire emergency broadcast speakers should be installed in these public places according to the principle that "the distance from any part of a fire compartment to the nearest speaker should not exceed 25 meters" and "the distance from the last speaker in the aisle to the end of the aisle should not exceed 12.5 meters"; Secondly, fire emergency broadcast speakers should also be installed in public restrooms.

The front room (including the smoke proof staircase front room, the fire elevator front room, and the front room shared by the fire elevator and smoke proof staircase) is a necessary passage for personnel evacuation and firefighting in the event of a fire, and is separated by fire doors and noisy with human voices. Therefore, fire emergency broadcast speakers should be installed in these front rooms, and fire emergency broadcast speakers should also be installed in general elevator front rooms. In addition, the evacuation stairwell is also a necessary passage for personnel evacuation and firefighting in the event of a fire, and the human voice is noisy. Therefore, it is necessary to install fire emergency broadcast speakers in this area for broadcasting evacuation instructions.

4. Installation of fire alarm devices

Is it necessary to install a fire alarm device for the fire alarm system with fire emergency broadcasting? The author believes that fire alarm devices should also be installed in terms of specific implementation and current situation, but the control program should be: after the fire is confirmed, the alarm device should use manual or automatic control methods to uniformly send alarms to the fire related areas, stop the alarm device work within the specified time, quickly link the fire emergency broadcast and play evacuation instructions to people.

The author believes that the setting position of the fire alarm device should be the same as that of the manual fire alarm button in terms of specific implementation and current situation, and its installation height should be on a wall 1.8 meters above the ground.

5. The setting of fire dedicated telephones

The setting of fire dedicated telephone extensions should be based on the fire pump room, backup generator room, distribution and transformation room, main ventilation and air conditioning room, smoke exhaust room, fire elevator room, and other areas that are related to fire linkage control and frequently manned. Fire dedicated telephone extensions should be installed at the operation device or control room of the fire control system, fire duty room, security office room, and other locations. Century Star introduces that dedicated telephones should be installed in both fire elevators and ordinary elevator cars, requiring a reliable intercom communication telephone system consisting of the elevator machine room and elevator car, elevator machine room and fire control room, elevator car and fire control room, etc. Generally, elevator monitoring display panels (including position indicators, direction indicators, intercom communication telephones, fault indicator lights, etc.) are installed in the fire control room to monitor the operation of elevators and control emergency situations.

The installation of fire dedicated telephone plugs should also include manual fire alarm buttons, fire hydrant buttons, and other locations.