PERIODIC REACTOR PLANT LEAK RATE TEST. CORE 1, SEED 2. Test Results

An investigation was made to determine the magnitude and location of the reactor coolant system leakage of the Shippingport Power Beactor. The "total" plant leakage was indicated by the pressurizer level change since no make-up was added during the test. The "accounted for" leakage was indicated by the flash tank level change and the blowoff tank level change. The relief valves from the pressurizer and reactor were checked for leakage individrually and a combined leakage of 2.84 gal/hr was obtainsd for the 6 valves tested. The system was found to have a total leak rate of 5.65 gal/hr of which 1.17 gal/hr was "accounted for." (M.C.G.