#千万IP创科普# Beware! Up to 800℃! This "bedding" can be fatal if it catches fire

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Waves of cold air

Makes people shiver

Many friends choose to use "electric blankets" to warm their beds

However

Recently due to improper use of electric blankets

There are also more fire accidents caused by

On the afternoon of October 31, a fire broke out in a resident's home in a residential area in Tongzhou, Beijing. Firefighters confirmed that the fire started from the bed in the bedroom of the home and was caused by an electrical circuit failure in the electric blanket . Fortunately, no one was at home when the fire broke out and no casualties were caused.

On the evening of October 24, a fire broke out in a high-rise residential area on Dapo Road, Wudang District, Guiyang, Guizhou. After investigation, it was found that the fire was caused by the owner not turning off the power of the electric blanket at home after going out .

On October 8, a fire broke out in a resident's home in Shunyi, Beijing. Firefighters quickly controlled the fire after entering the house, but items in the bedroom were burned to varying degrees. After investigation, it was found that the cause of the fire was that the owner used an electric blanket to make dough the night before and forgot to turn off the power switch when he went out that day .

Axiao sorted out and found

In previous years, electric blanket fires have also resulted in fatalities.

On December 9, 2022, a fire broke out in a 5-story residential building in Guiyang, Guizhou, killing one person. According to the comprehensive judgment of the fire department, the cause of the fire was a short circuit in the electric blanket used in the second bedroom, which ignited the combustibles.

At about 9:00 am on December 18, 2014, a fire broke out in a resident's home in Gulou District, Nanjing, Jiangsu. A 94-year-old woman used an electric blanket improperly to keep warm, which caused a fire and thick smoke at the scene. Unfortunately, the old woman died in the fire.

Fire experiment

Tragic case

Sounding the safety alarm again and again!!!

The heating principle of the common electric blankets on the market is: the heating wire inside the blanket quickly generates heat after being connected to a power source , achieving the purpose of "heating".

After disassembling the inside of the electric blanket, the hair-sized heating wire inside the white insulation is found to be the heating wire that provides heat to the electric blanket.

Most electric blanket fires are caused by the heating wire breaking or poor contact, which generates high temperatures.

The firefighters cut a heating wire that was energized, simulating the contact between two broken heating wires. It can be clearly seen that a red high-temperature spot immediately appeared at the contact position.

The temperature of the hot spot caused by poor contact of the heating wire may reach over 800 degrees Celsius , which can easily burn through the insulation and blanket body, and then ignite the cotton in the bedding.

What's even more frightening is that since the quilts used by residents in winter are generally thicker, when an electrical failure occurs in the electric blanket, the heating wire temperature becomes too high and ignites the bedding. Due to lack of oxygen, it will often remain in a smoldering state for a long time at the beginning.

At this time, most residents are asleep, and even if you touch the surface of the blanket, it is difficult to detect anything unusual. However, if you lift the blanket after a while, a large amount of toxic carbon monoxide gas will be emitted. In addition, as the smoldering area under the blanket gradually expands, once the blanket is lifted and exposed to a large amount of oxygen, the flames will quickly rise...

How should we

Proper use of electric blankets

While enjoying the warmth

How to avoid fire accidents?