Document: NUREG-0800
Document ID: 6d9458c8-25fc-47c7-8406-acd4365b1d3c
Document Type: srp
Title: CONTROL ROD DRIVE SYSTEMS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1613/ML16133A472.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.9.4
CFR Part: 
CFR Title: 

Content:
or sponsor, and a person is not required to respond to, a request for information or an information collection requirement unless the requesting document displays a currently valid OMB control number. 3.9.4-16 Revision 4 – March 2017 SRP Section 3.9.4 Description of Changes Section 3.9.4, “Control Rod Drive Systems” In addition to the changes itemized below, editorial changes were made throughout for clarity, consistency, and applicability. Changes incorporated into Revision 4 include: I. AREAS OF REVIEW • Added CRDS description for SMRs and pointer to SRP Section 3.9.2 and RG 1.20 for evaluation of flow-induced loads. • Added review of fatigue limits assessment for 60 year design life of the plant. • Updated life cycle test program to include acceptance criteria for testing and proper service environment imposed during testing to include dynamic events, including guidance for embedded CRDS designs. II. SRP ACCEPTANCE CRITERIA • Fixed reference to RG 1.70 for Standard Format and Content of Safety Analysis Reports for Nuclear Power Plants. III. REVIEW PROCEDURES • Added discussion on flow, acoustic, and mechanical excitation mechanisms and pointer to SRP Section 3.9.2 and RG 1.20 for potential excitation mechanisms. IV. IMPLEMENTATION • No significant changes V. REFERENCES • References were updated in concert with changes referenced above, including RG 1.20, RG 1.70, and RG 1.206.