A fire broke out in the Changsha Telecom Building, why is there an explosion? How to avoid high-rise fire in an emergency?
Release time：2023-02-07 03:21:21 source：korpimaankyynel.com author：Forest
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A fire broke out in the Changsha Telecom Building, why is there an explosion? How to avoid high-rise fire in an emergency?
Just on the afternoon of September 16, a serious fire broke out in the Hehuayuan Telecom Building opposite Changsha Jintai Plaza. According to witnesses, the fire started from the fifth floor of the building, and it took only ten minutes to reach the top of the building. At the time of the incident, there were heat waves and thick smoke billowing, and it felt like there were heat waves within 1 km. People nearby also heard violent explosions coming from the building. After the fire broke out, the Changsha Fire Brigade Command Center immediately dispatched more than 30 fire trucks and more than 200 fire fighters to the scene to put out the fire. Due to the high floors, there are 42 floors on the ground, and the height exceeds 200 meters. Even the fire ladder is difficult to function. Firefighters can only carry out fire fighting operations on the lower floors. Powerless. Before the fire broke out, fortunately, the management of the building notified all the people working in the building in time and organized everyone to evacuate in an orderly manner. No casualties were found at the scene. With the joint efforts of many firefighters, by about 15:48 in the afternoon, the open fire in the building had basically been extinguished. After preliminary investigation, the cause of the fire was caused by the burning of the outer wall of the building, and the specific triggering factors require follow-up investigation and identification by relevant authorities. In recent years, my country has vigorously advocated green building projects. Many regions in the north and the south have taken the outer side of the building to cover the insulation layer as an important measure to promote green buildings and energy conservation and emission reduction. After years of development, not only the number of buildings covered with thermal insulation materials and the coverage rate have become higher and higher, but also the types of thermal insulation materials have become more and more abundant. Materials, silicates, inorganic fireproof and thermal insulation mortar, etc. The above-mentioned materials have high or low resistance to high temperature and fire resistance, and need to be used in accordance with the relevant national specifications and actual application conditions. For high-rise buildings with a height of more than 100 meters, the fire rating of the external wall insulation materials must reach the highest A-level level. Materials such as glass wool, foamed ceramics, foamed cement, etc. can meet the A-level fire protection requirements. However, although the thermal insulation material with A-level fire protection level has excellent fire resistance, its thermal insulation performance is inferior to that of other types of materials. For the comfort of living, choosing to use materials with high thermal insulation and low fire resistance for construction is definitely an idea of opportunism and paralysis. I don't know if the fire on the outer wall of the Changsha Telecom Building is because of this. It will take us a few more days to see what the cause of the accident is. The fire in the telecommunications building, many people around heard the explosion sound, in fact, the sound came from the inside of the building. This telecommunications building houses a very important communication room in Changsha City. There are thousands of hosts in it. It is one of the largest access points of information network trunk lines in Hunan Province. In this computer room, in order to cope with sudden power outages, there are many UPS power supplies. Lithium batteries may be used in the power supplies. If the lithium batteries encounter continuous high temperature, open fire or are severely squeezed, they will react and release Hydrogen, in a relatively confined space, will burn violently and cause battery explosion and gas deflagration, which is why people hear explosions near the fire scene. Now with the continuous development of the city, high-rise buildings are increasing day by day, and high-rise buildings over 100 meters are not uncommon. For people who live or work in it, the most feared thing is the fire in the building. The speed of burning from bottom to top is very fast. If coupled with the blessing of strong winds, the fire will spread faster. Therefore, if signs of fire are found in high-rise buildings, escape must be the first priority. If you are on a lower floor, it is okay to say, as long as the fire is found in time, there is still plenty of time to escape. If you are on a higher floor, a corresponding refuge floor will be set up for such a building, and being able to find such an area will be of great help in improving your chances of survival. If you can't find where the refuge area is, you must remember the following key points at this time. First, don't jump off the building to escape, you will die. Second, don't take the elevator. Even if the elevator is not broken, don't take it. Maybe it will fail in any area. Once it is stuffed inside, surrounded by fire and smoke outside, the probability of survival will be extremely low. Third, to quickly find the entrance to the stairs, go down the stairs one by one, run as fast as you can. Fourth, in the process of escaping, try to avoid areas with large fires. If there is a lot of smoke, you can cover your mouth and nose with clothes and bend forward. Fifth, if the downward passage has been blocked, it is best to hide in the toilet or other place with water in the closed room, turn on the faucet, and find a towel is the best, you can wet the towel or clothes with water, and the room Close the gap with the door. At the same time, cover your mouth and nose with a towel and choose a squatting or lying position to ensure that you can breathe in more fresh air. Sixth, if the way down is blocked, and the closed room is not found, at this time, you can only take the stairs to move up. It is best to go to the top of the high-rise building and wait for air rescue. At this time, it is necessary to rely on the speed competition between rescuers and the spread of the fire. If you are lucky, you may be able to escape the disaster. #HunanChangshaTelecom Building Fire# #Changsha China Telecom Building fire has been put out#
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