Document: NUREG-0800
Document ID: 825fe003-d78e-433f-8e46-8e2cb989ac88
Document Type: srp
Title: FUNCTIONAL DESIGN OF CONTROL ROD DRIVE SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340589.pdf
Revision Date: 2023-06
Chapter: 4
Section ID: 4.6
CFR Part: 
CFR Title: 

Content:
REVIEW RESPONSIBILITIES Primary - Auxiliary Systems Branch CASB) Secondary - None 1. AREAS OF REVIEW The ASB reviews the functional performance of the control rod drive system (CRDS) to confirm that the system can effect a safe shutdown, respond within acceptable limits during anticipated transients, and prevent or mitigate the consequences of postulated accidents. The ASB review covers the CRDS to assure conformance with the requirements of General Design Criteria 23, 25, 26, 27, 28, and 29. 1. ASB reviews the CRDS design for possible single failures. 2. ASB reviews the CRDS to verify that: a. Essential portions are isolable from nonessential portions. b. The CRDS cooling system meets the design requirements. c. The functional tests verify the proper rod insertion, withdrawal, and scram operation times. d. Redundant reactivity control systems are not vulnerable to common mode failures. In addition, ASB will coordinate other branch evaluations that interface with the overall review of the control rod system as follows. As part of its primary review responsibility for SRP Section 4.3, the Core Performance Branch (CPB) verifies the reactivity control requirements. The Instrumentation and Control Systems Branch (ICSB) verifies the results of failure modes and effects analyses to assure that a single failure occuring in the control rod system, or an operator error, will not result in the loss of capability for safe shutdown as part of its primary Rev. 1 - July 1981 USNRC STANDARD REVIEW PLAN Standard review plans are prepared for the guidance of the Office of Nuclear Reactor Regulation staff responsible for the review of pplications to construct and operate nuclear power plants. These documents are made available to the public as part of the Commlssion'u policy to Inform the nuclear Industry and the general public of regulatory procedures and policies. Standard review plans are not substitutes for regulatory guides or the Commlssion's regulations end compliance with