10 causes of air conditioning spontaneous combustion!

First, in recent years, air-conditioning spontaneous combustion news

1, this year July 7, Ningbo, Zhejiang Mr. Yu's home hanging air conditioning suddenly caught fire in the course of just a few minutes, air conditioning burned coke. Fortunately, early discovery did not result in greater losses. It is reported that Mr. Yu bought a hanging air conditioner, and the manufacturer is also located in Cixi, Zhejiang Province. This air conditioner was bought in 2005 and counts for some years. The staff of the air-conditioning manufacturer, who surnamed Hu, said, “The service life of air conditioners is generally 8 years, and Mr. Yu’s air conditioner has been used for 13 years and has passed the service life. As for the solution, we will work with consumption. Negotiators."

2, this year March 20, Wenchang City, Hainan Province, a residential district home air conditioner suddenly caught fire caused the fire, but fortunately the local police firefighters successfully extinguished the fire, but the family belongings were burned a lot.

3, June 2016, Fuyang City, Anhui Province, a price of a dwelling in the 7300 yuan cabinet air conditioners, sudden spontaneous combustion fire, causing the interior walls and ceiling fans burned, fortunately no one was home, causing no casualties.

4, May 22, 2015, Zhumadian City, Henan Province consumer Kwak ordered a Guiji air conditioning, installed in early June. July 20 evening around 8:00, to buy a new air conditioner burst into flames of fire, just completed renovation of the marriage room Xunde a mass of black fire.

Second, the cause of air conditioning spontaneous combustion

Recently, the news of a well-known media suffocation caused by the release of a large amount of gas from the air-conditioning spontaneous combustion has caused concern. Coincides with the summer heat, "air-conditioning spontaneous combustion" has quickly become a hot spot for the public.

Causes of air conditioning spontaneous combustion

Does air conditioning spontaneously ignite? meeting! Zhang Jinzhuan, a professor of fire engineering at the China Armed Police College, told the People's Daily that over a dozen reasons, including the improper installation of air conditioners and component failures, could cause air-conditioning to catch fire.

According to Zhang Jinzhuo, only six kinds of possible air-conditioning electrical circuit wires are inflammable : the end of the power cable is loose, or the connectors of the air-conditioner such as motors and transformers are in poor contact with each other, resulting in excessive contact resistance and fire; the capacity of the outlet plug is too small, causing overheating; The power cord does not match its power, causing overload and causing fire; the insulation strength of electric wires and electrical components inside the machine is reduced, and electric leakage and fire cause fire; the insulation of the compressor's sealing terminal block causes electric leakage and ignites and ignites the spilled frozen oil. Nearby combustibles catch fire; external voltage changes cause the motor to overheat and ignite flammables.

According to Zhang Jinzhuo, the internal components of the air conditioner can also cause air conditioning to catch fire. There are multiple motors with different functions in the air conditioner. The motor driven by the motor malfunctions, such as the fan stuck to form a "locked rotor", and the motor bearing wear causes the rotor to sweep. # #? Rate 缍 缍 缌髟龃螅 缌髟龃螅 缌髟龃螅 Fei 稍 涠搪 涠搪 ( ( ( (5) 鹪 鹪 Zheng 豢盏髌骺刂 毓 毓 毓 毓 毓 毓 毓 毓 鸹鹪 鸹鹪 鸹鹪绱 绱 呷Ψ 呷Ψ (5) 涠搪 涠搪 涠搪 涠搪 /

The failure of electrical components can also cause the air conditioner to catch fire. The high-temperature spark generated when the capacitor breaks down can ignite the combustors in the inner liner of the ignition unit and the partition plate. Zhang Jin told reporters that the main reason for this type of fire is that the power supply voltage is too high, the air conditioner is leaking moisture, and no moisture treatment is done.

Improper installation may also cause the air conditioner to catch fire. Air conditioners are located close to flammable objects such as curtains and wooden structures, and are placed in the sun. As the sun shines for a long time, the continuous operation of the compressor can overheat and catch fire. The window type air conditioner usually uses a 220V power supply, and the power plug is a single-phase wire plug. misconnection 380V three phase supply overvoltage fire.

It is also a fire hazard that the air conditioner starts immediately after it stops. After the air conditioner is deactivated, the pressure difference between the compressor's intake and exhaust sides is relatively large. If it is started immediately, the capillary tube will not reach equilibrium, causing the load to increase and the current to increase drastically, causing the motor to burn and cause fire.

Zhang Jinzhuan told reporters that the frequent use of air conditioners in summer to prevent air conditioner fires should pay attention to the following points :

1. Select the air conditioner brand with good quality and good reputation.

2. Ask professional air conditioner installers to install air conditioners and use wires, plugs, and fuses that match the air conditioners.

3. Air conditioners should not be installed too close to curtains, or flame-retardant fabrics should be used for curtain fabrics.

4. The use of electric-type air-conditioning, the user to stop their heating, the electric part of the cooling before shutting down.

5. Do not turn it off frequently for a short time.

The information in this article comes from the Internet and was reorganized and edited by China Rescue Equipment Network.