(1), electrical hazard: power supply is an indispensable energy source in life, but it is also a hidden danger of various accidents. It is mainly caused by leakage, overload, short circuit, electric spark, arc and excessive contact resistance.

(2) Hidden dangers of liquefied gas: Liquefied gas is usually also called gas. It is an indispensable fuel in life. Its advantages are: smoke-free, large firepower, and can be adjusted freely in the process of people's needs. But the disadvantage is that it is easy to leak, flammable and explosive, and it will catch fire quickly if it encounters an open flame. Especially in case of metal collision, it is easy to cause explosion.

Second, learn safety knowledge and job skills, and understand the hidden dangers in the kitchen:

(3) Hidden danger of open flame: you can't leave the fire source in the kitchen every day, and a little carelessness will lead to a fire or explosion accident. Common fire sources are: stove fire, oil pan spontaneous combustion, wire short circuit, electric leakage, fire caused by overload, cigarette butts littering and other reasons.

(4) Hidden danger of sharp tools: Knives are indispensable in daily kitchen work, and are the most prone to industrial accidents in this industry. Worked in the kitchen last year.