Discussion on Classification of Nuclear-Power Information System Classified Protection

Information system security classified protection aims to improve the system security level and ability,safeguard national security,social stability and public interest,ensure and promote the healthy development of information system construction. Nuclear power is a new clean energy sources,and nuclear-power information system classified protection is of great significance. Through description of classified protection directives from the country and electric power industry on information system security classified protection,this paper focuses on the explanation of information security classified protection,classification flow,classification object and damage degree,security protection classification,nuclear-power information system record flow and system classification change. And with nuclear-power production control system as an example,this paper gives a specific description of information system classified protection work. These could serve as a reference for various industries.