Electrical appliances prohibited from use in laboratories include

Electrical appliances prohibited from use in the laboratory include heaters, electric stoves, electric cups, electric blankets, charging equipment, hand warmers and microwave ovens. Detailed introduction: 1. Heating appliances such as fast heating, electric stoves, electric heating cups, etc., these appliances have hidden dangers of causing fires, mainly because these heating elements have large power and thin power cords. If they are overloaded and the current is too large during use, It may cause fire, and there is a certain risk of leakage when using this type of electrical appliances; 2. Electric blankets are prohibited from being used in the laboratory, because electric blankets have current flowing through them, and if the wires of the electric blankets are short-circuited during the experiment, etc.

The operating system for this tutorial: Windows 10 system, DELL G3 computer.

The following types of electrical appliances are prohibited from being used in laboratories:

Heating appliances such as fast heaters, electric stoves, and electric heating cups: These appliances pose a risk of fire, mainly because of the power of these heating elements. It is larger and the power cord is thinner. If it is overloaded and the current is excessive during use, it may cause a fire. In addition, there is a certain risk of leakage when using such electrical appliances.

Electric blanket: Electric blankets are prohibited from being used in the laboratory. Because there is current flowing through the electric blanket, if the wires of the electric blanket are short-circuited during the experiment and the current suddenly increases, it will cause electrical ignition in the laboratory and may cause a fire.

Charging equipment: such as mobile phone chargers, power banks, etc. These devices require careful observation when charging to prevent charging equipment failure, overcharging, or excessive battery heat. It is recommended to charge under supervision.

Hand warmers: Although hand warmers are not considered an electrical appliance, their use in laboratories is prohibited. Because hand warmers are inconvenient to plug in in the laboratory and can easily cause safety hazards.

Microwave oven: A microwave oven is a household appliance and cannot be used in the laboratory. Because the principle of microwave heating is that when the frequency of the electromagnetic field is close to the mechanical resonance frequency of water molecules, the water molecules will absorb the energy of the electromagnetic field and move violently. The macroscopic manifestation is thermal motion of the molecules and an increase in temperature.

In summary, the use of heating appliances such as heaters, electric stoves, electric cups, electric blankets, charging equipment, hand warmers, and microwave ovens is prohibited in the laboratory. In order to ensure the safety of experiments, we must strictly abide by the rules and regulations of the laboratory, operate the experimental equipment correctly, and pay attention to the safe use of electricity.

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