What are the principles of choosing strategies?

　Principles for selecting accident prevention measures Accident prevention technical measures During the design process, when there is a conflict between accident prevention measures and economic benefits, priority should be given to the requirements related to accident prevention. Technical measures should be selected in accordance with the following hierarchy of accident prevention measures: ① Direct safety technical measures. The production equipment itself possesses intrinsic safety features, preventing accidents and hazards. 　　②Indirect safety technical measures. When direct safety technical measures cannot or cannot be fully implemented, one or more safety protection devices must be designed for the production equipment to minimize the occurrence of accidents or hazards. 　　③Indicative safety technical measures. When indirect safety measures are also ineffective, detection and alarm devices, warning signs, and other such measures must be used to warn and alert workers, so that they can take appropriate actions or evacuate the dangerous area urgently. 　　④If indirect and indicative safety measures still fail to prevent accidents or hazards from occurring, safety procedures, safety education, training, and personal protective equipment should be employed to prevent or reduce the level of danger and risk within the system. 　　In practical work, the above measures are often used in combination.

①Direct safety technical measures. The production equipment itself possesses intrinsic safety features, preventing accidents and hazards. 　　②Indirect safety technical measures. When direct safety technical measures cannot or cannot be fully implemented, one or more safety protection devices must be designed for the production equipment to minimize the occurrence of accidents or hazards. 　　③Indicative safety technical measures. When indirect safety measures are also ineffective, detection and alarm devices, warning signs, and other such measures must be used to warn and alert workers, so that they can take appropriate actions or evacuate the dangerous area urgently. 　　④If indirect and indicative safety measures still fail to prevent accidents or hazards from occurring, safety procedures, safety education, training, and personal protective equipment should be employed to prevent or reduce the level of danger and risk within the system.

It is to facilitate the prevention and resolution of accidents.

Principles for selecting countermeasures: Consider risk avoidance first, and risk retention last