Document: NRC Regulatory Guide
Document ID: c195adf7-a2ca-46e1-9071-9f87fd3d00ce
Document Type: regulatory_guide
Title: 10/2013 (Rev. 1)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1321/ML13210A463.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.73
CFR Part: 
CFR Title: 

Content:
igure 1.” This should be replaced with the following: “…the frequency interval should be one-sixth octave to adequately identify resonance frequencies.” The users of IEEE Std. 382-2006 need to address the other RG 1.73, Rev. 1, Page 6 aspects of the qualification process (such as seismic and functional qualification) for power-operated valves as described in RG 1.100. 10. To ensure that the actuator is tested under an environment of sufficient severity, the magnitude of the environmental conditions (e.g., temperature, pressure, radiation, humidity) that simulate the conditions to which the actuator is expected to be exposed during and following a DBE (Section 17, “DBE environment test” of IEEE Std. 382-2006) should be based on conservative calculations. The equipment needs to be qualified for the duration of its operational performance requirement for each applicable DBE condition, including any required post DBE operability period. D. IMPLEMENTATION The purpose of this section is to provide information on how applicants and licensees1 may use this guide and information regarding NRC plans for using this RG. In addition, it describes how the NRC staff complies with 10 CFR 50.109, “Backfitting” and any applicable finality provisions in 10 CFR Part 52, “Licenses, Certifications, and Approvals for Nuclear Power Plants.” Use by Applicants and Licensees Applicants and licensees may voluntarily2 use the guidance in this document to demonstrate compliance with the underlying NRC regulations. Methods or solutions that differ from those described in this RG may be deemed acceptable if the applicant or licensee provides sufficient basis and information for the NRC staff to verify that the proposed alternative demonstrates compliance with the appropriate NRC regulations. Current licensees may continue to use guidance the NRC found acceptable for complying with the identified regulations as long as their current licensing basis remains unchanged. Licensees