An analysis on physical protection systems' debugging

Physical protection systems prevent nuclear power plants from outside intrusion threat of nuclear safety and provide a safe and reliable operating environment. The availability of physical protection systems relates directly to nuclear fuel into the factory and charging. This paper introduces the debug process of physical protection systems in Fuqing Nuclear Power Unit 1 through the integrated management of physical protection systems and three main functions--gate controlling, intrusion alarm and video monitoring. A preliminary solution to the key issues that have occurred is also presented. (authors)