Imagine a weekend night, you and your friends humming a little song and eating hot pot, suddenly the hot pot outlet began to fire, this time it is not afraid of fire, but to hurry to extinguish the fire ...... And then, for example, every day use of cell phone chargers, you are not often in the phone is fully charged not unplugged away? The charger has been plugged into the socket, easy to cause component aging, long time will cause heat, in the hot summer and even spontaneous combustion and explosion. I'm sure you've seen a lot of this kind of news.
By 2050, China's terminal electrification rate will reach 50%, as electricity is more widely used in all aspects of life, bringing more convenience to our lives, but most people do not pay enough attention to electrical accidents that threaten personal safety. The following small Shi from the fire, electrocution and combustion of three aspects of electrical safety hazards:
1, electrical fires
In the Ministry of Emergency Management Fire and Rescue Bureau released 2020 national fire data, the year due to violations of electrical installation and use of the provisions of the fire caused by 85,000 fires, accounting for 33.6% of the total number of fires, which is equivalent to the country every day, there are 232 electrical fires occurring. Faults such as overloading, short-circuiting, leakage, and overheating due to arcing account for nearly 90% of the causes of electrical fires. The fire caused by the short circuit alone accounted for about 50% of the total number of electrical fires, specific to the location of the fire, electrical wiring caused by the fire and accounted for more than 50%.
The reason for this, simply put, the current through the wire is to generate heat, and heat with the current increases geometrically, once the heat is too large leading to high temperature lines or equipment, will cause spontaneous combustion or ignition leading to fire. Specifically, the composition of the electrical system links: electrical wiring, electrical equipment, power supply and distribution equipment, as long as the current through, may cause electrical fires.
Visibly, the prevention of electrical fires is a systematic project. Schneider Electric does its best to prevent electrical fires from all aspects of the electrical system: based on the EcoStruxure architecture, it builds a complete set of safe, reliable, intelligent and efficient software and hardware product combinations that cover low-voltage and medium-voltage power distribution, and comprehensively prevents fires caused by overloading, short-circuiting, leakage, and arcing faults in all aspects of the electrical system, including the electrical wiring, electrical equipment, power supply and distribution equipment, as well as the monitoring of the system.
2, electric shock potential
Electricity damage to the human body mainly includes electric shock and electrical injuries of two kinds, can lead to minor muscle contraction, tissue damage, respiratory paralysis, atrial fibrillation and even death, according to data from the National Bureau of Statistics, the number of deaths due to electrocution each year are more than 8,000 people. There are some electrocution phenomenon in the electrical scene is very common, such as electrical equipment is old, damp, joints exposed will cause insulation failure, and for example, wiring clutter will also increase the risk of electrocution. In China, the number of electrocution deaths in high and low voltage power systems, low voltage accounted for more than 80%.
But electrocution is not invulnerable, anti-electrocution, need to take a multi-pronged approach, insulation protection by enhancing the electrical system "stress capacity" for people to build a defense against electrocution injuries, safe operation and maintenance of the environment as well as "healthy" electrical system A safe operation and maintenance environment, as well as a "healthy" electrical system, can also prevent the further spread of danger in a timely manner. Schneider Electric has developed a series of software and hardware solutions to eliminate hidden dangers, physically isolate, and remotely operate and maintain three major aspects of the leakage faults for early monitoring and real-time protection of the electric place, to avoid the occurrence of electric shock accidents.
3. Electrical ignition explosion
Electrical ignition explosion is usually related to the power distribution system and equipment, such as system short circuit, overload, contact resistance is too large, or the electrical equipment itself, the equipment near the combustible fire, and in the presence of explosive gases or dust in the environment using non-explosion-proof electrical equipment.
More than half of the electrical ignitions that occur in the workplace are caused by arc flash. Arc is a form of air ionization discharge, generally lasts less than 1 second, the core temperature of the arc arc column up to 20,000 ℃, has a very high radiation energy and explosive, in a few milliseconds of time, will bring burns to the human body, internal organ damage and even death threat. The moment the switch is turned on or off produces an arc flash, accompanied by glowing and heating phenomena, and when a large amount of heat and pressure is released into the environment, the arc flash becomes an arc explosion.
While the generation of arc flash is an instantaneous thing, but the arc itself from the generation of a potential threat to form a certain time, so to stop the occurrence of such electrical accidents, the need to comprehensively eliminate potential hazards, optimize the design of products and systems to achieve the physical barrier, as well as the digital empowerment of the remote operation and maintenance, will be the three means of close coordination, in order to be more certain that to eliminate the possibility of the occurrence of electrical explosion, to ensure that electrical The three means are closely coordinated to eliminate the possibility of electrical explosions and ensure the safety, health and sustainability of the electrical environment, as well as to protect the personal safety of employees.
Today, electrical accidents such as electrocution, explosions, fires, and other threats to personal safety are still frequent, and are seriously hampering the development of China's electrification industry. Schneider Electric will continue to explore the road to find the root cause of electrical accidents, use more innovative technologies and concepts, and continuously improve the interconnection and interoperability of hardware products with strong "stress protection" power, as well as digital monitoring software capabilities, to solve the persistent problem of power distribution system failures in a human-centered way, and strive to build a safer and smarter new electrical world, providing everyone with a better and smarter life. We are striving to build a safer and smarter electric new world and provide more reliable personal safety protection for everyone.
Nice to meet you! This is the official knowledgable account of @Schneider Electric. Schneider Electric is an expert in energy management and automation, leading the digital transformation for efficiency and sustainability. We are present in more than 100 countries worldwide. Plus, we're a French company and we don't sell pens