Detailed explanation of fire equipment power monitoring system

What is a fire-fighting equipment power monitoring system? It is developed according to the national standard "Fire Equipment Power Monitoring System". The system consists of fire equipment power status monitor, power bus, communication bus and its connected current signal sensor, voltage signal sensor, current/voltage signal sensor, and intermediate module. Boxes and other equipment components are used to detect the main and backup power supplies of fire-fighting equipment in real-time through sensors, so as to judge whether the power supply equipment has over-voltage, under-voltage, over-current, open-circuit, short-circuit and missing faults.

The role of the fire-fighting equipment power monitoring system: It is reliable, real-time and has features of digitization, intelligence, networking, automation and continuous monitoring. The condition of the power supply of the monitored equipment is reflected in real time and displayed in a centralized manner so as to avoid the critical situation in which the fire equipment cannot work normally due to the power failure when the fire occurs, and the reliability of the fire linkage system is guaranteed to the maximum extent.

The importance of fire-fighting equipment power monitoring systems: With the rapid development of society, modern large-scale construction, public gathering places and a class of high-rise buildings are increasing. Its fire control center controls automatic alarm systems, automatic sprinkler systems, and fire protection. The operation of multiple fire safety systems such as accident broadcasting system, smoke prevention system, gas fire extinguishing system, fire hydrant system, and emergency lighting system is the key to building fire safety. The fire alarm system and relevant fire fighting linkage equipment of fire control room can Whether it works normally or not depends on the working status of the fire-fighting equipment power supply. Therefore, in the event of a fire, if the power of the fire-fighting equipment cannot be operated reliably and stably, the fire-fighting facilities that invest a lot of money may be in name only.

Applications of fire-fighting equipment power monitoring systems: modern large-scale buildings, public agglomeration sites and a high-rise building; shopping malls, stadiums, auditoriums, theaters, large hospitals, schools; telecommunications buildings, financial and financial buildings, large office buildings, exhibition halls , high-level hotels; subway facilities, railway stations, bus stations, tunnels, large-scale enterprise buildings and other buildings.

Meet the standard :

1. GB28184-2011 "Fire Equipment Power Supply Monitoring System"

The national standard GB28184-2011 "Fire Equipment Power Supply Monitoring System" is under the jurisdiction of the National Fire Protection Standardization Technical Committee Fire Detection and Alarm Technical Committee, which was promulgated on December 28, 2011 and implemented on August 1, 2012. This standard enforces the basic functions of the fire equipment power monitoring system;

2. The newly revised national standard GB50116-2008 "fire automatic alarm system design specifications" added fire-fighting equipment power monitoring system-related regulations;

3. Design Atlas of Fire Equipment Power Monitoring System compiled by China Building Standard Design and Research Institute;

4. The National Standard GB25506-2010 “General Technical Requirements for Fire Control Room” organized by the Ministry of Public Security Fire Bureau stipulates: “The fire control room shall be able to display the working status and undervoltage of the power supply and standby power supply for each fire protection equipment in the system. Alarm information."

System composition of fire equipment power monitoring system : This system consists of monitoring host, repeater, monitoring module and transmission cable. The monitoring host can manage up to 64×16 total 1024 monitoring modules. The maximum communication distance of the network does not exceed 500m. When the transmission distance exceeds 500m, repeater extensions are used, and each repeater can manage 64 modules.

1. Monitoring host: The monitoring host adopts a centralized and modular design to track, store, and analyze the monitored fire equipment power supply operation information, fault information, location information, etc., to facilitate the user's management and monitoring; Machine interactive interface, and the data of the fire-fighting equipment power supply is displayed in aggregate, with many functions such as management, viewing, alarm, and printing.

The number of loops of a monitoring host does not exceed 16, and 64×16 modules are connected at most. The general power supply monitoring host consists of 4 loops and each loop can receive 64 monitoring modules.

2. Repeater: The repeater is suitable for systems where the monitoring host is far away from the on-site monitoring module. The repeater can not only increase the communication distance of the system, but also can supply power to the connected on-site monitoring module to solve the communication signal and power output attenuation due to the distance. The repeater transmits the power information of the connected site monitoring module and repeater to the monitoring host through the communication bus.

3. Monitoring module: The monitoring module is used to collect information on the power supply and equipment operating status of various fire-fighting equipments at the site. The monitoring requirements for different fire-fighting equipment power supplies can be achieved by selecting monitoring modules with different functions.

The monitoring module is divided into the following three categories:

M1 module: power monitoring module for monitoring the voltage and current of the power supply;

M2 module: residual current monitoring module for monitoring the residual current value of the power supply circuit;

M3 module: Functions of both modules.

The module adopts a standard modular design with rail mounting to facilitate field use.