# Theory of Safety Quantification and Equivalence Oriented Industrial System

• Yang Song
• Xuefei Yang
Conference paper
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 969)

## Abstract

Nowadays kinds of research about safety of industrial system greatly improved the knowledge about this field. After 10 years’ research and experience about safety and investigation the related research in recent decades, the author found safety discipline worldwide mainly consists of three parts: safety system theory, safety methodology and the relationship between safety and other factors. All of them were studied deeply in its own area.

However, some further problems need to be answered about this topic. For a company or organization, how safe is the safety system and is it safe enough? How much of our safety system we can see? How to balance safety and other factors as we know there won’t be definitely safe situation while we still should keep the whole thing safe enough? Is it possible to connect different theories in a simple way? The paper aimed to find a way to integrate achievements in this field and presented a new method to solve the problems mentioned above.

At first, the theory clarified identification and the important figuration of safety. In mainstream works, Safety has different identification. The theory agreed that safety is the state and confidence without unexpected losses, not mentioned the cases with intent to do harm. The safety is a subjective concept but also can be quantitative in a sense. As an inter-discipline, the safety is born to rely on some other profession. That is why most of safety research has a specific background. These are premises of the theory.

Secondly, the theory summarized main factors to indicate the important value of industry safety: safety redundancy. The value of safety redundancy can be calculated and insisted a group of equations. These equalized factors in mathematics constitute main bridges between diverse safety areas. The paper demonstrated and verified the rationality of equations furthermore.

At last, the theory took electric power industry as examples to introduce these equations making the systems united and how to organize our safety management via united systems. Electric power industry is one of the most complex systems in the world. This system offers interrupt power supply, it’s too crucial to tolerance even power off for a little while. The fatal factor in this field is the safety and stability of the electric power grid. The industry includes design, plan, construction, maintenance, repairing, upgrading and so on, which placed to strict desire to numerous engineers in the industry. Not only they should assure the grid and the devices are under control, but also, they should keep safe when working in the field. So the application in electric power system also may benefit to other kinds of industry.

## Keywords

Safety quantification Safety equivalence Industrial system Industrial Safety Cup Theory

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