I. Current situation of electrical fires
In recent years, with the continuous increase of electrical load, electrical fire accidents have been increasing day by day, which has brought great harm to the safety of life and property of the country and people. According to the Statistical Yearbook of the Fire Bureau of the Ministry of Public Security, in the investigation of building fire accidents in the past ten years, about 30% originated from fires caused by electrical faults, ranking first. Especially in severe fire accidents, the proportion of electrical fires is as high as 70%. Electrical fires have become the number one killer of various fire accidents! At the same time, due to the increasing power load of industrial and mining enterprises and households, as well as the continuous increase of electrical equipment, the incidence of electrical safety accidents is also rising year by year, resulting in increasingly serious economic losses.
Causes of electrical fires
1. Long-term overload and heating of electrical lines cause circuit aging, insulation damage and short circuit, and other abnormalities generate electric sparks, igniting surrounding combustible materials and causing fire; (commonly known as overload, short circuit, leakage, and poor contact)
2. The awareness of safe power consumption is not strong, due to human factors such as unauthorized changes to electrical circuits and non-compliant use of electrical appliances;
3. The quality of the selected electrical appliances is poor and the reliability is poor;
4. In addition to direct lightning, the types of lightning hazards include inductive lightning (including static and electromagnetic induction), lightning strikeback, intrusion of lightning waves, and ball lightning. The common feature of these types of lightning hazards is that they are always accompanied by discharge Mechanical forces, high temperatures and intense sparks. Damage to buildings, damage to power lines or electrical equipment, explosion of oil tanks, and fires in storage yards. The fire caused by a ball mine in Huangdao Oil Depot is a typical example. Third, the current electrical fire prevention measures
At present, electrical equipment operation and management techniques are backward, relying mainly on manual inspections, which have many missed inspections and poor results. For example, the high-voltage switchgear and low-voltage drawers in operation are not allowed to be inspected at all. The floor distribution box cannot be inspected due to a lot of position restrictions. Cable trenches and cable trays are difficult to inspect due to covers and plugs, so they are caused by electrical faults. Electrical fires, electrical explosions, sudden power outages and other electrical accidents still occur from time to time.
At present, there are not many technical measures for electrical fire prevention. Although leakage protectors are generally installed in buildings, the main focus is to protect the personal electric shock, which has little effect on the prevention of electrical fires. Although a small number of new buildings are equipped with electrical fire monitoring systems, there are still many shortcomings: they only focus on condition monitoring and alarm protection, and severely lack intelligent analysis functions such as fault diagnosis, fault analysis, and trend prediction; they only focus on power distribution. Point-type detection of line leakage and temperature, lack of distributed line detection of cable temperature; only focus on condition monitoring of low-voltage equipment, lack of condition monitoring of high-voltage equipment; only focus on civil buildings, seriously ignore industrial electrical fire prevention, etc. Wait.
At the same time, the competent government department (such as fire protection) lacks effective supervision means and cannot grasp the electrical safety situation of the units in its jurisdiction. The daily work mainly uses post-accident compensation or surprise inspections, which cannot fundamentally change the passive working situation.
With the development and application of Internet of Things, cloud computing and big data technologies. At present, the technical means for monitoring the failure of electrical equipment and achieving the safe and controllable operation of electrical systems are in place. The severe electrical fire situation has attracted great attention from the country. The state has formulated and issued relevant notification documents, requiring local governments to vigorously strengthen the management of electrical fires. Strength.
A. In December 2016, the State Fire Protection Administration clearly stated in the "2017 Work Focus" that "improve the level of fire physical defense technology. Guidance municipalities, provincial capitals, planned cities and cities with conditions to speed up the scientific research results of electrical fire monitoring systems. Promotion and application ";
B. On May 3, 2017, the Security Council of the State Council convened a video conference on comprehensive electrical fire management work, and decided to organize and implement a comprehensive electrical fire management work for a period of 3 years (May 2017-April 2020).
C. Since the recent period, fire protection units in various provinces and cities (Beijing, Zhejiang, Jiangsu, Guizhou, etc.) have successively issued the "Notice on Actively Promoting the Implementation of the Electrical Fire Monitoring System" or held special meetings to urgently deploy and supervise units to install electrical fire monitoring devices. It is required to earnestly improve the ability to prevent electrical fires and reduce the occurrence of electrical fires.
4. Government policy support
The Office of the Safety Production Committee of the People's Government of Wuxi City issued the “Notice on Promoting the Use of Supervisory Service System for Hidden Dangers of Smart Electricity Use” (Xi'an Ban  No. 9), which mentioned that arc-extinguishing electrical fire protection devices are At the same time of real-time monitoring, no dangerous sparks are generated at short-circuit points and overload points, which effectively prevents the occurrence of electrical fires.
The Office of Jiaxing Work Safety Committee issued the “Notice on Deepening and Promoting the Construction of Hidden Dangers of Smart Electricity Safety” (Jia'an Commission Office  No. 9), which requires that “smart electricity” be installed in places where people are intensive. system
The Office of the Work Safety Committee of the People's Government of Linfen City issued the “Notice on Carrying out Electrical Fire Control and Accelerating the Popularization of the Supervisory Service System for Hidden Dangers of Smart Electricity” (Lin'anbanfa  No. 29). The notice mentions that electrical fire protection devices are At the same time of real-time monitoring of the line status, no dangerous sparks are generated at the short-circuit and overload points, which effectively prevents the occurrence of electrical fires.
Zhejiang Qingtian County Safety Production Committee and Fire Safety Committee jointly issued the "Notice on Strengthening the Support of Science and Technology to Promote the Widespread Application of Smart Electricity Safety Management System" (Qing'an Commission  No. 7). Installed "smart power system".
Zhuzhou City Office of Work Safety issued the “Notice on Promoting the Use of Intelligent Electricity Safety Hazard Supervision Service System” (Zhu'an Ban Fa  No. 42), which mentioned that while monitoring the status of electrical lines in real time, short circuit It will cut off the power under extreme conditions such as overload and overload, so that no dangerous sparks will be generated at the short circuit and overload points, which effectively solves the old electrical lines of the power consumption unit, small and micro enterprises without professional electricians, and the human eye cannot intuitively check the electrical hidden dangers and concealment in a timely manner. It is difficult to check hidden dangers in engineering.
The Linfen City Public Security Bureau issued the "Notice on Further Strengthening the Fire Station Supervision and Management of Police Stations", requiring the public security bureaus (branch offices) of all counties and cities to vigorously promote the use of intelligent electricity safety hidden danger supervision service systems and arc-extinguishing electrical fire protection devices to effectively reduce Risk of fire.
The Office of the Safety Production Committee of Xiangshan County, the Finance Bureau of Xiangshan County, and the Safety Production Supervision and Administration Bureau of Xiangshan County jointly issued the "Implementation Opinions on Carrying out the Use of Smart Electricity Safety Supervision Service System" (XiangAn Commission  No. 46). It is required that professional markets, large shopping malls, cultural protection units, and religious sites should install "smart power" systems.
Hohhot Xincheng District Work Safety Committee Office issued the “Notice on Promoting the Use of Smart Electricity Safety Management System in Xincheng District” (Xin'anweibanfa  No. 42). The notice mentioned that while real-time monitoring of the status of electrical lines , So that no dangerous sparks occur at the short circuit and overload points, effectively preventing the occurrence of electrical fires.
V. Overview of Lion King Electric Fire Monitoring and Alarm System:
The electrical fire monitoring and alarm system is an electrical fire early warning and prevention and control system innovatively developed for the frequent occurrence of electrical fire accidents in China. The system makes full use of next-generation high-tech technologies such as wireless Internet of Things technology, cloud computing, and mobile Internet. It consists of electrical fire monitoring detectors, electrical fire monitoring alarms, electrical fire monitoring and alarm platforms, and mobile apps. Real-time monitoring of the main factors that cause electrical fires such as the current magnitude, residual current, and cable temperature of electrical lines, accurately capture the hidden dangers of electrical fires, and implement early warning processing, comprehensive analysis and record query of abnormal information to ensure that electrical fires are protected against Not "burned".
Schematic diagram of electrical fire monitoring system Functions and characteristics of electrical fire monitoring and alarm system
24小时实时监控 ☛ 24-hour real-time monitoring
You can choose the appropriate method (local computer, mobile phone app, WeChat) independently of time, place and environment, and monitor the residual current, temperature, current, status and other information of each detection point online for 24 hours.
推送 Abnormal alarm push
If an abnormality occurs, the police will be notified immediately. Push the information to the user's mobile phone or cloud management platform in time, remind the attention to the fault situation, find the hidden danger in time, and take corresponding measures to eliminate the hidden danger.
☛ Hierarchical management
Achieve hierarchical management and multiple lines of defense to prevent serious accidents caused by personal omissions.
分析 Data analysis
Through the relevant parameters of the electrical equipment circuit, determine the cause of the failure, guide the enterprise to carry out the governance, to eliminate the potential hidden dangers of electrical fire safety, and comprehensively guarantee the safety of electricity use.
设定 Remote setting
Authorized managers can remotely set various thresholds of the detector through the cloud management platform or APP.
All alarm information and remote operation records are written into the log and available for users to query and read.
☛ Rights Management
The system can assign different permissions to different operators according to the user's actual business processes and management needs, thereby improving the overall security of the system.
☛ APP linkage
Through the mobile phone APP, relevant authorized personnel can learn about the electricity consumption on the spot, grasp the safety status of the electricity consumption system, receive alarm information, and perform remote warning and remote control operations.
查看 Linked video viewing
For the scene where a monitoring probe is installed and an alarm occurs, the cloud management platform can link with the on-site video to view and timely understand everything that happened on the scene in order to make the next judgment.
Multi-level electrical fire monitoring system
Reduction of power-related accidents: Real-time monitoring and protection of electrical lines through technical means has greatly improved the safety supervision of electrical lines and reduced power-related accidents;
Energy saving: reduce leakage current and reduce cable heating loss;
Regulate electricity consumption: determine the hidden dangers that are usually neglected, such as poor node connection, random connection of high-power electrical appliances, poor quality of power strips, random use of air-conditioning sockets, etc., and give reasonable suggestions for regulating electricity consumption;
Convenient management: control the operation of electricity consumption anytime, anywhere through the smart and safe electricity monitoring system;
Solve the problem of electricity safety: Multi-level hidden danger investigation, realizing pre-warning, in-event alarm, and post-event management of hidden fire hazards, and curbing the occurrence of severe fire accidents.
Intensive places (enterprises, factories, hospitals, schools, theaters, shopping malls, supermarkets, hotels, office buildings, etc.)
Old neighborhoods, rental houses, restaurants, stores and various high-rise residential buildings
Entertainment venues such as bars, KTV, Internet cafes
Nine small places (small processing plants, small stalls, warehouses, etc.)
Cultural units (exhibition halls, libraries, cultural halls, museums)
Aged care institutions and assistance welfare institutions