Document: NUREG-0800
Document ID: 1e026b4f-5a81-43c8-9dd3-fef9bb4f9c3d
Document Type: srp
Title: INTERNALLY GENERATED MISSILES (INSIDE CONTAINMENT)
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070372.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.5.1.2
CFR Part: 
CFR Title: 

Content:
REVIEW RESPONSIBILITIES Primary - AuxiliaryPlant Systems Branch (ASB)(SPLB) 1 Secondary - None I. AREAS OF REVIEW The ASBSPLB review of the structures, systems, and components (SSC) to be protected from 2 internally generated missiles (inside containment) to assure conformance with the requirements of General Design Criterion 4 includes all SSC within the containment and the containment itself. The review includes internally generated missiles associated with component overspeed failures, missiles that could originate from high energy fluid system failures, and missiles due to gravitational effects. The ASBSPLB with the requested assistance of the Containment Systems and Severe Accident 3 Branch (CSB)(SCSB) and the Reactor Systems Branch (RSB)(SRXB) reviews the functional 4 5 operations and performance requirements for structures, systems, and componentsSSC inside 6 containment and identifies which of the operations are necessary for the safe shutdown of the reactor facility, or prevention of a significant uncontrolled release of reactivity, in the event of 7 an accident or other circumstances that might result in an internally generated missile, or for the mitigation of the effects of loss-of-coolant or other accidents. Safety-related SSC important to safety are reviewed with respect to their capability to perform 8 functions required for attaining and maintaining a safe shutdown condition, or prevention of a significant uncontrolled release of reactivity, during such accident conditions. The review of 9 internally generated missile protection includes the following: DRAFT Rev. 3 - April 1996 3.5.1.2-2 1. Structures, systems or portion of systems, and components requiring protection from internally generated missiles and the methods of protection provided against such missiles. 2. Credible primary missiles including, valve hardware, retaining bolts, relief valves parts, instrument wells and reactor vessel seal rings (PWR). 3. Credible secondary missiles generated