The first category of hazards refers to the energy that may be released accidentally in the production process, including all kinds of energy, energy carriers or dangerous substances in the production process.
The first type of hazard determines the severity of the accident consequences. The more energy it has, the more serious the accident consequences will be.
The second type of hazard source refers to the factors that lead to the destruction or failure of the restraint or restriction measures of energy or dangerous substances, which broadly include factors such as material failure, human error, harsh environment and management defects.
The second kind of danger determines the possibility of accidents. The more frequent it occurs, the greater the possibility of an accident.