Energia i regulacje · 08/08/2001

Nuclear Regulatory Commission Issues Bulletin to PWR Licensees Regarding Cracked Reactor Pressure Vessel Head Nozzles

The Nuclear Regulatory Commission has issued a bulletin to operating licensees of pressurized-water nuclear power reactors, requiring them to provide information on the structural integrity of reactor pressure vessel head nozzles following recent discoveries of cracked and leaking nozzles at several reactors, and to submit a written response to the commission regarding their plans for future inspections.