Document: NUREG-0800
Document ID: 23a67737-6e7e-4dfc-9090-dca6a186a7dc
Document Type: srp
Title: RADIOLOGICAL CONSEQUENCES OF MAIN STEAM LINE FAILURES
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070679.pdf
Revision Date: 2023-06
Chapter: 15
Section ID: 15.1.5
CFR Part: 
CFR Title: 

Content:
APPENDIX A OUTSIDE CONTAINMENT OF A PWR REVIEW RESPONSIBILITIES Primary - Accident Evaluation Branch (AEB) Emergency Preparedness and Radiation Protection Branch (PERB)1 Secondary - Reactor Systems Branch (RSBSRXB)2 I. AREAS OF REVIEW The Standard Review Plan (SRP) Section 15.1.5 covers the review by the Reactor Systems 3 Branch (RSBSRXB) of the main steam line break (MSLB) accident outside the containment of 4 a pressurized water reactor (PWR) plant, including the response of the reactor and plant 5 systems; the potential for fuel failure; and the effect on the core thermal margins. This Appendix A to SRP Section 15.1.5 covers the review by the AEB PERB of the radiological 6 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 ensure that the most severe case of radioactive releases has 7 been considered, calculated release of radioactive material has been identified. This determination is based on the amount of material released as well as on the resulting calculated doses;8 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; DRAFT Rev. 3 - April 1996 15.1.5-2 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 II below; 5. Evaluation of the technical specifications on the primary and secondary coolant iodine activities; and 6. Two cases for the Determination of reactor coolant iodine concentration corresponding 9 to (a) a preaccident iodine spike and (b) a concurrent iodine spike. Review Interfaces10 A secondary review is performed by the RSB SRXB, and the results are used by AEB PERB in the overall evaluation of the MSLB radiological consequence analysis.