Document: NUREG-0800
Document ID: 3b714304-f91e-4999-917a-7d27866735e3
Document Type: srp
Title: STEAM SYSTEM PIPING FAILURES INSIDE AND OUTSIDE OF CONTAINMENT (PWR)
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052350117.pdf
Revision Date: 2023-06
Chapter: 15
Section ID: 15.1.5
CFR Part: 
CFR Title: 

Content:
nse of the containment to ruptures of steam lines with regard to the effects of pressure and temperature on the containment functional capabilities as part of its primary review responsibility for SRP Section 6.2.1. CSB also reviews the analytical methods for deriving NSSS mass energy releases exiting a postulated -break. The Core Performance Branch (CPB) reviews all the nuclear design aspects, this includes power levels, power distributions Doppler coefficients, moderator temperature coefficients, reactor kinetics parameters, DNB correlations and control rod worths as part of its primary review responsibility for SRP Sections 4.2, 4.3 and 4.4. The ICSB reviewer concentrates on the instrumentation and controls aspects of the sequence described In the SAR to evaluate whether the reactor and plant protection and safeguards controls and instrumentation systems will function as assumed in the safety analysis with regard to automatic actuation, remote sensing, indi- cation, control, and interlocks with auxiliary or shared systems. ICSB also evaluates potential bypass modes and the possibility of manual control by the operator, as part of its primary review responsibility for SRP Sections 7.1 through 7.7. For those areas of review identified above as being reviewed as part of the primary review responsibility of other branches, the acceptance criteria necessary for the review and their methods of application are contained in the referenced SRP section of the corresponding primary branch. 15.1.5-2 Rev. 2 - July 1981 the analytical methods are reviewed by RSB to ascertain whether the mathematical modeling and computer codes have been previously reviewed and accepted by the staff. If a referenced analytical method has not been previously reviewed, RSB initiates a generic evaluation of the new analytical model. A secondary review is performed by the Accident Evaluation Branch and the results are used by RSB to complete the overall evaluation of the break analysis. The