Search Results for keywords:"Revision 4"

The U.S. Nuclear Regulatory Commission (NRC) has issued a new version, Revision 4, of Regulatory Guide 1.105, which focuses on the setpoints for safety-related instrumentation used in nuclear facilities. This guide has been updated to include information from the American National Standards Institute (ANSI) and International Society of Automation (ISA) Standard 67.04.01-2018. It provides an approved method for ensuring that these setpoints comply with required safety and technical specifications. The guide is available for public access, and there were 24 public comments submitted during its review process.

The U.S. Nuclear Regulatory Commission (NRC) has issued a new version, Revision 4, of Regulatory Guide (RG) 1.32 and introduced a new guide, RG 1.238, concerning the standards for power systems in nuclear power plants. RG 1.32 details how to design, operate, and test electric power systems in nuclear plants, while RG 1.238 focuses on protecting specific types of power systems and equipment. These guides provide methods approved by the NRC for meeting regulations, and they incorporate updated standards from the Institute of Electrical and Electronics Engineers (IEEE). The issuance of these guides does not enforce any new regulatory requirements on licensees.