Energia i regulacje · 20/02/1997

Proposed Generic Communication; Assurance of Sufficient Net Positive Suction Head for Emergency Core Cooling and Containment Heat Removal Pumps (M96537)

The Nuclear Regulatory Commission (NRC) is proposing to issue a generic letter that will request addressees to submit the analysis and pertinent assumptions used to determine the net positive suction head (NPSH) available for emergency core cooling (including core spray and decay heat removal) and containment heat removal pumps. This information will enable the NRC to determine if the NPSH analyses for reactor facilities are consistent with their respective current licensing basis. The NRC is seeking comment from interested parties regarding both the technical and regulatory aspects of the proposed generic letter presented under the Supplementary Information heading. The proposed generic letter has been endorsed by the Committee to Review Generic Requirements (CRGR). The relevant information that was sent to the CRGR will be placed in the NRC Public Document Room. The NRC will consider comments received from interested parties in the final evaluation of the proposed generic letter. The NRC's final evaluation will include a review of the technical position and, as appropriate, an analysis of the value/impact on licensees. Should this generic letter be issued by the NRC, it will beco