Document: NUREG-0800
Document ID: 126ade1c-f71d-4438-bb61-4fb69648889d
Document Type: srp
Title: CONTROL ROD MISOPERATION (SYSTEM MALFUNCTION OR OPERATOR
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070714.pdf
Revision Date: 2023-06
Chapter: 15
Section ID: 15.4.3
CFR Part: 
CFR Title: 

Content:
l 1996 1. The following General Design Criteria (Ref. 1) apply: 12 a. General Design Criterion 10 (GDC 10), which requires that specified acceptable 13 fuel design limits are not to be exceeded during normal operation, including the effects of anticipated operational occurrences. b. General Design Criterion 20 (GDC 20), which requires that the protection 14 system initiate automatically appropriate systems to ensureassure that specified 15 acceptable fuel design limits are not exceeded as a result of anticipated operational occurrences. c. General Design Criterion 25 (GDC 25), which requires that the reactor 16 protection system be designed to ensureassure that specified acceptable fuel design limits are not exceeded in the event of a single malfunction of the reactivity control system. 2. The requirements of GDCGeneral Design Criteria 10, 20, and 25 concerning the 17 specified acceptable fuel design limits are assumed to be met for this event when: a. The thermal margin limits (DNBRdeparture from nucleate boiling ratio for 18 PWRs) as specified in SRP Section 4.4, subsection II.1, are met. b. Fuel centerline temperatures as specified in SRP Section 4.2, subsection II.A.2(a) and (b), do not exceed the melting point. c. Uniform cladding strain as specified in SRP Section 4.2, subsection II.A.2(b), do not exceed 1%. Technical Rationale19 The technical rationale for application of these acceptance criteria to reviewing control rod misoperation (i.e., system malfunction or operator error) is discussed in the following paragraphs:20 1. Compliance with GDC 10 requires that the reactor core and associated coolant, control, and protection systems be designed with appropriate margin to ensure that specified acceptable fuel design limits are not exceeded during any condition of normal operation, including the effects of anticipated operational occurrences. GDC 10 is applicable to this section because the reviewer evaluates the effects and consequences of a control rod