Energia i regulacje · 14.08.2020

Setpoints for Safety-Related Instrumentation

The U.S. Nuclear Regulatory Commission (NRC) is issuing for public comment draft regulatory guide (DG), DG-1363, "Setpoints for Safety-Related Instrumentation." This DG is proposed Revision 4 of Regulatory Guide (RG) 1.105. The proposed revision describes an approach that is acceptable to the staff of the NRC to meet regulatory requirements ensuring that setpoints for safety related instrumentation are established and maintained within the technical specification limits. This proposed guide has been revised to incorporate additional information regarding American National Standards Institute (ANSI)/ International Society of Automation (ISA) Standard 67.04.01-2018, "Setpoints for Nuclear Safety Related Instrumentation," since revision 3 of RG 1.105 was issued.