Energia i regulacje · 23.12.2019

Target set Identification and Development for Nuclear Power Plants

The U.S. Nuclear Regulatory Commission (NRC) is issuing Revision 1 to Regulatory Guide (RG) 5.81, "Target set Identification and Development for Nuclear Power Plants," as a final RG. RG 5.81 provides guidance the NRC considers acceptable for applicant or licensee analysis, development, documentation, and reevaluation of target set elements and target sets, including preventive operator actions that may be credited to prevent core damage (e.g., non- localized fuel melting, and/or core destruction) or loss of spent fuel coolant and exposure of spent fuel. This revision of the guide (Revision 1) clarifies issues that have been identified through interactions with stakeholders and inspection activities since the original publication of the guide.