Document: NUREG-0800
Document ID: 2349ea77-1f6e-45e4-a2df-f56249a774f1
Document Type: srp
Title: CONTROL ROD DRIVE SYSTEMS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070364.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.9.4
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CFR Title: 

Content:
lity to perform its safety functions. 3C. GDC 14, as it relates to CRDS, requires that the RCPB portion of the CRDS be designed, constructed, and tested for the extremely low probability of leakage or gross rupture. 4D. GDC 26, as it relates to CRDS, requires that the CRDS be one of the independent reactivity control systems which is designed with appropriate margin to assure its reactivity control function under anticipatedconditions of normal operatingon, condition including anticipated operational occurrences . 27 5E. GDC 27, as it relates to CRDS, requires that the CRDS be designed with appropriate margin, and in conjunction with the emergency core cooling system, be capable of controlling reactivity and cooling the core under postulated accident conditions. 6F. GDC 29, as its relates to CRDS, requires that the CRDS, in conjunction with reactor protection systems, be designed to assure an extremely high probability of accomplishing its safety functions in the event of anticipated operational occurrences. (1)This list can be extended by a staff review and acceptance of other ANSI and MSS standards in the piping system area. 3.9.4-5 DRAFT Rev. 3 - April 1996 Specific criteria necessary to meet the relevant requirements of the regulations identified above are as follows: 1. The descriptive information is determined to be sufficient provided the minimum requirements for such information meet Section 3.9.4 of Reference 1110 . 28 2. Construction (as defined in NCA-111O of Section III of the ASME Code, Reference 7 ) 29 should meet the following codes and standards utilized by the nuclear industry which have been reviewed and found acceptable: a. Pressurized Portions of Equipment Classified as Quality Group A, B, C (Regulatory Guide 1.26) Section III of the ASME Code, Class 1, 2, or 3 as appropriate (Ref. 7) . 30 b. Pressurized Portions of Equipment Classified as Quality Group D (Regulatory Guide 1.26) (1) Section VIII, Division 1 of the ASME Code for vessels and pump