A new rule storeroom of mis-operation prevention was deduced in the paper .This paper not only continues and improves the theory but also discusses the implementation method of it. The application software has been completed， so that it testifies the feasibility of the theory. As the state of breakers/switches are various， in general， we should use variables of Bool to express the state of breakers/switches instead of using‘0' or‘1'. So the mapping between variables of Bool and the state of breakers/switches， and simplification of the matrix with variables of Bool are the most difficult and important in the method. This paper puts forward a new method of accessible matrix calculation， which also simples the process and improves the speed of calculating enormously， it converts the theory to the application software.