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:
tem (RCS), to terminate the AOOs analyzed in this SRP section. AOOs such as those caused by a control rod misoperation are terminated in a timely manner so that acceptable specified fuel design limits are not exceeded for either a PWR or a BWR. This SRP section and SRP Sections 4.2, 4.3, 4.4, 7.2, 7.7, 15.4.1, and 15.4.2 provide guidance for ensuring that specified acceptable fuel design limits are not exceeded as a result of anticipated operational occurrences. Meeting the requirements of GDC 20 provides assurance that specified acceptable fuel design limits will not be exceeded when the reactor protection system initiates operation of appropriate systems to terminate AOOs caused by control rod misoperations due to system malfunction or operator error.22 3. Compliance with GDC 25 requires that each reactor protection system be designed to ensure that specified acceptable fuel design limits are not exceeded for any single malfunction of the reactivity control system such as accidental withdrawal (not ejection or dropout) of control rods. GDC 25 is applicable to this section because the reviewer evaluates the effects and consequences of a control rod misoperation due to system malfunction or operator error for either a PWR or a BWR at power. One acceptance criterion requires that the reactor protection system be designed to ensure that specific acceptable fuel design limits are not exceeded for either a PWR or a BWR during normal operations or during an AOO, including the event of a single malfunction of the RCS. The reactor protection system operates in a manner that automatically terminates the AOOs analyzed in this SRP section. This SRP section and SRP Sections 4.2, 4.3, 4.4, 7.2, 7.7, 15.4.1, and 15.4.2 provide guidance for ensuring that specified acceptable fuel design limits are not exceeded as a result of AOOs. Meeting the requirements of GDC 25 provides assurance that a single malfunction of the reactivity control system, together with anticipated operational