Document: NUREG-0800
Document ID: 96cbc2a1-0072-44c5-ae86-aadfa416183c
Document Type: srp
Title: RADIOLOGICAL CONSEQUENCES OF MAIN STEAM LINE FAILURES
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052350118.pdf
Revision Date: 2023-06
Chapter: 15
Section ID: 15.1.5
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CFR Title: 

Content:
APPENDIX A OUTSIDE CONTAINMENT OF A PWR REVIEW RESPONSIBILITIES Primary- Accident Evaluation Branch (AEB) Secondary - Reactor Systems Branch (RSB) I. AREAS OF REVIEW The SRP Section 15.1.5 covers the review by the Reactor Systems Branch (RSB) of the main steam line break (MSLB) accident outside the containment of a PWR plant, including the response of the reactor and plant systems, the potential for fuel failure and the effect on the core thermal margins. This Appendix A of SRP Section 15.1.5 covers the review by the AEB of the radiological consequences of the MSLB accident. The review includes the following: 1. Review of the sequence of events, as described by the applicant, with and without offsite power available, to assure that the most severe case of radioactive releases has been considered, 2. Review of the models and assumptions used by the applicant for the calculation of the thyroid and whole-body doses for the postulated accident, 3. Independent calculation by the staff of the thyroid and whole-body doses for the MSLB accident, 4. Comparison of the doses calculated by the applicant and by the staff with appropriate exposure guidelines, as stated in subsection 11 below, 5. Evaluation of the technical specifications on the primary and secondary coolant iodine activities, and 6. Two cases for the reactor coolant iodine concentration corresponding to (a) a preaccident iodine spike and (b) a concurrent iodine spike. 15.1.5-10 Rev. 2 - July 1981 USNRC STANDARD REVIEW PLAN Standard review plans are prepared for the guidance of the Office of Nuclear Reactor Regulation staff responsible for the review of applications to construct and operate nuclear power plants. These documents are made available to the public as part of the Commission's policy to Inform the nuclear Industry and the general public of regulatory procedures and policies. Standard review plans are not substitutes for regulatory guides or the Commission's regulations and compliance with them is not