Reliability tests for physical protection systems (II)

PNC has carried out the reliability tests as a part of its R and D programs on the physical protection systems for its nuclear facilities from 1977 to 1982. The purpose of these tests was to evaluate the effectiveness, reliability and resistance to tampering of various physical protection devices such as intrusion detectors, access control systems, and physical barriers against potential threats. The results obtained from these tests have been used to design effective protection systems to meet current requirements, and simultaneously to establish the physical protection installation standards of Japan. The results of the former tests were presented at the 22nd Annual Meeting; this paper, therefore, will describe the results of the access control systems and the integrated protection system evaluated in 1981-1982. Both the access control systems are new personnel identifications which utilize face verification and height-weight verification. The face verification system in particular is expected to be adopted at PNC facilities in the near future. The model integrated protection system was composed of effective devices selected with due consideration to the results obtained from tests, and the functions of detection, access control, assessment, delay and communication through intrusion and working tests were evaluated