1. The connection between the grounding trunk line and the grounding device shall not be less than 2, and the distance shall not exceed 24M.
2. The device used to receive, display and transmit fire alarm signals, record the specific parts and time of the alarm, and monitor the working status of the detector and the system itself is fire alarm controller .
3, escape descender is a rope fire escape shelter equipment.
4. Residential homes are light hazard levels.
5. The current "Fire Protection Law" in my country was implemented in on on April 23, 2019.
6. After the button in the monitoring interface of the centralized fire alarm controller, you can see the fire alarm event serial number. Click the fire alarm and switch to other serial number information.
7. Linear temperature sensing fire detectors are classified according to the form of sensitive components and can be divided into cable type, air tube type, distributed fiber, grating fiber and linear multi-point temperature sensing detector.
8. There is generally no reset button on the fire display panel. Reset must be operated on the fire alarm controller.
9. For fire-proof roller shutters set up in the evacuation corridor, there are two independent fire-sensitive detectors or any smoke-sensitive detectors specifically used for linking fire-proof roller shutters in the fire-proof zone.
10. Combustion refers to the exothermic reaction of combustible substances and oxidant , which is usually accompanied by the phenomenon of flame , luminescent and (or) flue gas .
11. The wet system should be automatically started by the pressure switch on the fire water pump outlet pipe, the flow switch on the fire water tank outlet pipe, and the pressure switch of the alarm valve group.
12. Fixed foam fire extinguishing system is a fire extinguishing system composed of a fixed foam fire water pump or foam mixing pump, a foam proportional mixer (device), a foam generator (or nozzle) and pipelines.
13. For wet automatic sprinkler fire extinguishing system, open the alarm test valve pressure switch and hydraulic alarm to operate.
14, centralized fire alarm controller can perform separate blocking , unblocking , unblocking , unblocking , isolated , release operations for fire detectors and other devices. (What is the difference between cancelling and cancelling?)
15. A library and library with a collection of 1 million books belong to a category of high-rise buildings.
16. A building beam with a height of 0.5M can be used as a smoke blocking facility.
17. According to certain application conditions, the gas fire extinguishing agent is transported from the storage device through the main pipe and branch pipe to the fire extinguishing system for spraying and discharging components to perform spraying and discharging, which is called the pipeline gas fire extinguishing system.
18. When using a pipeline fire extinguishing system, the area of a protective area should not be greater than 800㎡ , and the volume should not be greater than 3600 cubic meters.
19. Operate the centralized fire alarm controller, click "History" under the main interface to enter the event "History" interface. You can select the corresponding event click, and a list of all this event will be displayed. Click the corresponding settings to view the detailed information.
20. For high-rise or multi-story buildings that use temporary high-pressure fire water supply system, when the setting of high-level fire water tanks cannot meet the static pressure requirements at the most unfavorable points of the system, pressure increase (stable) facilities should be set up in the building fire water supply system, and supporting technical measures such as setting up air pressure tanks to prevent frequent start and stop of the pressure pump.
Make a little progress every day, I hope it can help everyone, and I will encourage you!
