There are probably three causes of a fire on a television

High-voltage power supply discharge leads to disaster. The second cathode of the picture tube in a television set requires a very high voltage. For example, a 12-inch black-and-white TV requires a voltage of 12,000 volts, and a large screen and color TV require a higher voltage.

Due to the high voltage, it is easy to produce discharge, which can cause poor ventilation of combustibles such as plastic parts when discharged.

If the ventilation is poor and the heat dissipation conditions are poor, the temperature in the machine will rise, exceeding the limit, resulting in poor insulation performance, damage to the machine and even fire.

In case of lightning strikes, it is easy to cause ** disasters. In order to improve the reception effect, some users install outdoor antennas, so that if the lightning protection facilities cannot keep up, they are vulnerable to lightning strikes**. Several ways to prevent TV fires:

Try not to use outdoor antennas during thunderstorms, and if you must use them, you must install grounding wires or lightning rods;

If the TV is placed in a cabinet, more air holes should be opened to facilitate ventilation and heat dissipation; Watching TV should not be placed near flammable liquids and gases to prevent discharging and ignition causing disasters; At the end of the viewing, the power supply should be cut off to prevent long-term power-on and heating**. In case of TV failure and abnormal phenomena, turn off the power immediately, cut off the power supply, and watch it again after repair. Once ignited, apply carbon dioxide"1211"Wait for the fire extinguisher or cover the fire with a wet blanket blanket to extinguish the fire, do not water; Prevent CRT**.

It's been too hot for a long time, and I'm looking for it.

1. Poor ventilation and high temperature in the machine. When the TV is working, many components such as transformers, picture tubes, electronic tubes, and transistors can emit a lot of heat, which accumulates in the dry TV set and causes the temperature to rise. Especially in the summer season, the temperature is high, resulting in the poor insulation performance of the TV, it is possible that the temperature of various components is too high, and a short circuit burns out, leading to a disaster.

2. Power transformer**. When watching TV programs for too long or the indoor temperature is high, the heat of the TV is not easy to escape; Or after watching TV, when you don't unplug the source plug of the TV electromechanical hall, the transformer of some TVs will heat up, and the temperature will rise for a long time, which is easy to cause disasters.

3. Lightning strikes wireless. In order to improve the viewing effect, some users often have to install outdoor antennas, and some even set the antennas very high. Watching TV programs during the thunderstorm season is very susceptible to lightning strikes, causing TV ****.

The correct remedy for a TV is to turn off the power immediately.

Wrap the TV set in a quilt, immediately move it to a safe place, not in the room, and immediately evacuate the person and report the fire alarm 119, so as to avoid him burning other items and releasing harmful objects to cause unnecessary damage to people's safety.

If conditions permit, dry powder fire extinguishers and carbon dioxide should be used to extinguish fires; You can also cover the TV with a quilt or blanket to isolate the air from the cherry blossoms and suffocate the fire. After the TV**, the fire is very strong and spreads to the furniture and surrounding flammable materials, and when the suffocation fire extinguishing method is ineffective, it can also be quickly extinguished with water to ensure that other materials are not lost.

Precautions when watching TV sliding and shutting down

When the TV is working, transformers, picture tubes, tubes, transistors and other components can emit a lot of heat, if the environment where the TV is located is poorly energized or the user watches the TV program for too long, the indoor temperature is high, and the heat dissipation is not smooth, it may cause a disaster.

Especially in summer, the insulation performance of the TV will deteriorate, resulting in the temperature of various components being too high, which is prone to short circuits and accidents. Prevent liquids from entering the TV and do not expose the TV to moisture. If the TV is not used for a long time, especially during the rainy season, it is necessary to use it for a few hours at regular intervals to dispel the moisture in the TV itself.

Asphyxiation. Try to cover the TV with a quilt and a cotton blanket to isolate the air and suffocate the fire.

1. Unplug the power plug first.

2. Cover the TV with a thick quilt, and do not cover it with chemical fiber clothing to prevent ignition.

3. Dry powder fire extinguisher and carbon dioxide fire extinguisher can be used to extinguish the fire.

4. When extinguishing the fire, people should approach the TV from the side of the TV to prevent the image from picking the key tube**.

5. If the fire cannot be extinguished, the "119" fire alarm should be reported immediately.

The old TV is more harmful: although the old TV is cheap, and the appearance of the renovated TV is similar to that of the new one, but its potential hidden dangers are also very large.

First, it endangers the health of eyesight. The color TV picture tube will age after 8 to 10 years of use, and the brightness and contrast of the picture will be greatly reduced, which will cause certain damage to the eyes.

Second, it endangers physical health. The CRT contains toxic and harmful substances such as lead, and the radiation of X-rays increases with the aging of the CRT.

Third, it endangers personal safety. Due to the aging of the line and the accumulation of dust, the possibility of short circuit in the old color TV increases, and it will also lead to **, **.

The TV set is on fire at home, and the wrong way to do it is to do it () aDouse with water.

b.Spray directly with a fire extinguisher on the fluorescent Li screen.

c.Quickly unplug the appliance and cut off the power supply.

d.Turn off the switch.

Correct Answer: a