How to prevent TV fires
The main reasons for TV fires
(1) High voltage discharge ignites. The second anode in the main picture tube of a TV requires a very high voltage. When the black and white TV works, the voltage of the picture tube generally needs 9000-16000 volts. The voltage of the color TV and the large-screen TV is higher, generally reaching more than 20,000 generations, and some can even reach 40,000 volts or higher. Due to the high voltage, discharge is easy to occur, and the spark or arc generated during discharge can ignite the plastic parts, wood, dust and other combustibles of the TV.
(2) The quality of the electronic components of the TV itself. Due to the long-term use of electronic components, the insulation performance is reduced, and even faults such as electric discharge hitting people or short-circuit breakdown of electronic components occur, which damage the machine parts. If some resistors burn red, and some capacitors and transistors are broken down, these are potential fire hazards.
(3) The ventilation is poor and the temperature inside the machine is too high. When the TV is working, many components such as transformers, picture tubes, electron tubes, transistors, etc. can release a lot of heat. These heat energy accumulates in the TV, causing the temperature to rise; especially in summer, the temperature is high, resulting in poor insulation performance of the TV. It is possible that the temperature of various components is too high, short-circuit burnout occurs, and a fire accident occurs.
(4) Lightning strikes wirelessly. In order to improve the viewing effect, some users often need to install outdoor antennas, and some even put the antennas very high. When the outdoor antenna is not within the protection range of lightning protection facilities or there is no lightning protection facility protection at all, watching TV programs during the thunderstorm season is very easy to be struck by lightning, causing the TV to catch fire and explode. Because the lightning voltage is as high as hundreds of thousands of volts or even millions of volts; although the lightning strike time is only a few seconds, the current can reach tens of thousands of amps to hundreds of thousands of amps. Where the current passes, the temperature rises and can reach tens of thousands of degrees, which not only damages the machine, endangers personal safety, but also easily causes fire.
(5) The power transformer caught fire. When watching TV programs for too long or the indoor temperature is high, the heat of the TV is not easy to release; or when the power plug of the TV is not unplugged after watching TV, the transformers of some TVs will heat up, and over time, The temperature rises, and it is easy to cause a fire.
How to prevent TV fires
(1) The TV should be placed in a well-ventilated place, not in a cabinet , In the kitchen, if it is to be placed in the cabinet or the kitchen, more holes should be opened on the cabinet and the kitchen (especially the corresponding parts of the cooling holes of the TV) to facilitate the wind to dissipate heat.
(2) Keep the TV away from stoves and heating pipes. The continuous viewing time should not be too long. Generally, it should be turned off for a period of time after continuous viewing for 4-5 hours. Especially in high temperature seasons, it is not suitable to watch for a long time.
(3) The power supply voltage should be normal. After watching TV, cut off the power supply.
(4) The TV should be placed in a dry place. In the rainy season, the TV should be protected from moisture. If the TV will not be used for a long time, it should be used for several hours at regular intervals. When the TV is in use, it is necessary to prevent liquid from entering the TV.
(5) Outdoor antennas or shared antennas should have lightning protection facilities. The arrester must be well grounded, and outdoor antennas should not be used during thunderstorms.
(6) If the TV emits smoke or burnt smell, turn it off immediately. If the TV catches fire, first unplug the power plug, cut off the power supply, and use a dry powder fire extinguisher to put out the fire. Do not pour it with water, because the temperature of the TV is high at this time, and the picture tube will explode if it is suddenly cooled.
What to do if the TV catches fire
1. Unplug the power plug first.
2. Cover the TV with a thick quilt, and do not cover it with synthetic clothing to prevent ignition.
3. Use dry powder fire extinguisher and carbon dioxide fire extinguisher to put out the fire.
4. When putting out the fire, people should approach the TV from the side of the TV to prevent the picture tube from exploding.
5. If the fire cannot be extinguished, immediately report the “119” fire alarm.
To sum up, a good TV, safe use of TV, etc. can greatly reduce the occurrence of this hazard, especially the current stage of LCD TV, plasma TV, LED TV, etc. Security has been greatly improved. Therefore, you should pay attention when purchasing and using a TV. You must not buy a TV with no quality guarantee for the sake of cheapness, and you should not pay attention to the safety of using TV for the sake of temporary comfort.
