On the results of fifth regular inspection of No.2 plant in Hamaoka Nuclear Power Station, Chubu Electric Power Co., Inc

The fifth regular inspection of No.2 plant in the Hamaoka Nuclear Power Station was carried out from January 28 to June 22, 1984. The parallel operation was resumed on May 28, 1984, 122 days after the parallel off. The facilities of the object of inspection were the reactor proper, reactor cooling system, measurement and control system, fuel facilities, radiation control facilities, waste facilities, reactor containment installation, and emergency power generation system. On these facilities of the object of inspection, the appearance, disassembling, leak, function, performance and other inspections were carried out, and as the result, leak was found in one fuel assembly, therefore, it was taken out, but other abnormality was not observed. The works related to this regular inspection were accomplished within the range of allowable exposure dose based on the relevant laws. The main reconstruction works carried out during this regular inspection were the replacement of 20 jet pump beams, the repair of No.2 feed heater, and the charging of 124 new 8 x 8 fuel assemblies. (Kako, I.)