Staff Discussion of Fifteen Technical Issues Listed in Attachment to November 3, 1976Memorandum from Director,NRR to NRR Staff.

摘要

Contents:Treatment of Non-Safety grade equipment in evaluation of postulated steamline break accidents;Lack of independence of interlocks on ECCS valves; Acceptability of swing bus design of BWR-4plants;Loss of offsite power subsequent to manual safety injection reset following a LOCA;Analysis of postulated reactor coolant pump rotor seizure incidents;Protection against single failures in reactivity control systems;Passive failures following a loss-of-coolant accident;Use of probabilistic assessment of reliability;Frequency decay;Grid stability;Interpretation of GDC 19 'Control Room';Load break switch;Instrument trip setpoints in standard technical specifications;Computer protection system; Overpressurization.