What are the protection principles for risk factors?

The principles for preventing risk factors are as follows: 1. The principle of eliminating potential dangers. The essence of this principle is rooted in scientific progress; by applying it in appropriate ways, it is possible to remove dangerous and harmful elements from the environment surrounding people, thereby ensuring the highest possible level of safety. 　One of the tasks of safety technology is to develop devices that ensure safety under specific production conditions, also known as automatic fail-safes or failure-protection devices, in order to increase the reliability of the system. Even if a person operates incorrectly due to unsafe actions, or if certain components fail, injury or death accidents can be completely prevented thanks to the function of this safety device. 　2. Principle of reducing the values of potential risk factors: This principle can improve safety levels, but it cannot eliminate risk factors to the greatest extent possible. In essence, only a compromise solution can be found for this principle. 　For example, in the human-material (environment) system, it is not as easy to install fail-safe systems as in the human-machine system. In situations such as outdoor work or when there are harmful gases containing chemical energy in the environment, it is necessary, from the perspective of protecting humans, to reduce the amount of dust and toxins inhaled and to enhance individual protective measures. This is called the second-level fail-safe. 　3. Distance protection principle: The effects of hazardous and harmful factors in production decrease according to a certain law related to distance. This property of many factors can be utilized very effectively. For example, the principle of distance protection can be applied to reduce the hazards of ionizing radiation such as radioactivity, as well as noise. 　Adopting automation and remote control to keep operators away from the work site in order to achieve a high degree of automation of production equipment is the direction for the future. 　4. Time protection principle: This principle aims to reduce the time that a person spends in an environment exposed to dangerous and harmful factors to a safe level. 　5. Shielding principle: This principle involves establishing barriers within the range of dangerous and harmful effects in order to protect people. Barriers are divided into mechanical, photoelectric, absorptive (such as lead plates absorbing radiation), and so on. 　6. Strength principle This principle is related to enhancing the structural strength for safety purposes, and is commonly referred to as the strength safety factor. For example, wire ropes used in lifting and transportation, as well as motor housings that are durable and explosion-proof. 　7. Weak link principle: Contrary to the principle mentioned above, this involves using weak components that will fail in advance before the risk factors reach dangerous levels, such as fuses and safety valves. 　8. Principle of keeping at a distance This principle aims to prevent people from coming into areas affected by dangerous and harmful factors, or to eliminate such factors from the areas where people operate. Such as safety fences, etc. 　9. Lockout principle: This principle involves using certain methods to ensure that certain components interact with each other, thereby guaranteeing safe operation. For example, in the case of explosion-proof electrical equipment, it shuts down automatically when its explosion-proof properties are compromised; the safety doors of lifting cages cannot be closed before the equipment can be turned on, and so on. 10. The principle of replacing operators: Under conditions where it is possible to eliminate dangerous and harmful factors, in order to avoid the risks posed by unsafe working conditions, robots or automatic controllers can be used to replace humans. 　1l. Principles of warning and prohibition messages: Targeting the people working on the main systems and their components, organizational and technical measures such as light and sound signals and signs, signals of different colors, safety instruments, and worker training are employed, along with information flows, to ensure safe production.

1. The principle of eliminating potential hazards: The essence of this principle is oriented toward scientific progress; by taking certain forms, it enables the elimination of hazardous and harmful elements in the environment surrounding people, thereby ensuring the greatest possible level of safety. 2. Principle of reducing the values of potential risk factors: This principle can improve safety levels, but it cannot eliminate risk factors to the greatest extent possible. In essence, only a compromise solution can be found for this principle. 3. Distance protection principle: The effects of hazardous and harmful factors in production diminish according to a certain law related to distance. This property of many factors can be utilized very effectively. For example, the principle of distance protection can be applied to reduce the hazards of ionizing radiation such as radioactivity, as well as noise. 4. Time protection principle: This principle aims to reduce the amount of time that a person spends in an environment exposed to dangerous and harmful factors to a safe level. 5. Shielding principle: This principle involves establishing barriers within the range of dangerous and harmful effects in order to protect people. Barriers are divided into mechanical, photoelectric, absorptive (such as lead plates absorbing radiation), and so on. 6. Strength principle: This principle is related to enhancing the structural strength for safety purposes, and is commonly referred to as the strength safety factor. For example, wire ropes used in lifting and transportation, as well as motor housings that are durable and explosion-proof. 7. Weak link principle: Contrary to the principle mentioned above, this involves using weak components that will fail in advance before the risk factors reach dangerous levels, such as fuses and safety valves. 8. Principle of keeping at a distance: This principle aims to prevent people from coming into areas affected by dangerous and harmful factors, or to eliminate such factors from the areas where people operate. Such as safety fences, etc. 9. Lockout principle: This principle involves using certain methods to ensure that certain components interact with each other forcibly, thereby guaranteeing safe operation. For example, in the case of explosion-proof electrical equipment, it shuts down automatically when its explosion-proof properties are compromised; the safety doors of lifting cages cannot be closed before the equipment can be switched on, and so on. 10. The principle of replacing operators: Where it is possible to eliminate dangerous and harmful factors, in order to avoid the risks posed by unsafe working conditions, robots or automatic controllers can be used to replace humans. 11. Principles of warning and prohibition messages: Targeting the people involved in the main systems and their components, organizations and techniques such as light and sound signals as well as signs, signals of different colors, safety instruments, and worker training are employed, along with information flows, to ensure safe production.

1. Principle of eliminating potential hazards 2. Principle of reducing the level of potential hazard factors 3. Principle of distance protection 4. Principle of time-based protection 5. Principle of shielding 6. Principle of robustness 7. Principle of weak links 8. Principle of preventing access 9. Principle of locking 10. Principle of replacing operators 11. Principle of warnings and prohibition messages