Research on method to define the equipment identification thermodynamic environment of K1 equipment

In order to meet the design requirements ol nuclear power autonomy, this paper makes clear the three curves from safety analysis to identification test, and puts forward methods which can be used to determine the accident identification environmental condition ol K1 equipment. At the same time, the method of determining environmental conditions mentioned in this paper is applied on a certain reactor type. The method is used to minimize the risk of procurement and ensure localization rate. (authors)