Document: NUREG-0800
Document ID: 6c5a07e2-91cf-49ae-a450-62551ed6bcef
Document Type: srp
Title: CONTAINMENT ISOLATION SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340703.pdf
Revision Date: 2023-06
Chapter: 6
Section ID: 6.2.4
CFR Part: 
CFR Title: 

Content:
primary review responsibility for SRP Sections 3.2.1 and 3.2.2, respectively. The Structural Engineering Branch (SEB) and the MEB will review the mechanical and structural design of the con- tainment isolation system as part of their primary review responsibilities for SRP Sections 3.8 and 3.9, respectively, to ensure adequate protection against a breach of integrity, missiles, pipe whip, jet impingement and earthquakes. The Instrumentation and Control Systems Branch (ICSB), as part of its primary responsibility for SRP Section 7.5, will evaluate the actuation and control features for isolation valves. The Equipment Qualification Branch (EQB), as part of its primary review responsibility for SRP Sections 3.10 and 3.11, will evaluate the qualification test program for electric valve operators, and sens- ing and actuation instrumentation of the plant protection system located both inside and outside of containment; and the operability assurance program for containment isolation valves. The Accident Evaluation Branch (AEB), as part of its primary review responsibility for SRP Section 15.6.5, will review the radiological dose consequence analysis for the release of containment atmo- sphere prior to closure of containment isolation valves in lines that provide a direct path to the environs. The Reactor Systems Branch (RSB), as part of its primary review responsibilities for SRP Section 15.6.5, will review the closure time for containment isolation valves in lines that provide a direct path to the environs, with respect to the prediction of onset of accident-induced fuel failure. The review of proposed technical specifications, at the operating license stage of review, pertaining to operability and leakage rate testing of the isolation barriers, and the closure time for containment isolation valves, is performed by the Licensing Guidance Branch (LGB), as part of its primary review responsibility for SRP Section 16.0. For those areas of review identified above as being