Document: NUREG-0800
Document ID: 68c52f40-6536-4c97-a8ab-72ea2a8c1c8c
Document Type: srp
Title: TURBINE BYPASS SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070595.pdf
Revision Date: 2023-06
Chapter: 10
Section ID: 10.4.4
CFR Part: 
CFR Title: 

Content:
iewed to determine that the system description and piping and instrumentation diagrams (P&IDs) delineate the system and components. 2. The SAR is reviewed to verify that the system design bases and an evaluation of the system capacity are provided, including the relation between the TBS capacity and relief valve capacity in terms of percentage of rated main steam flow, the maximum reactor power step change the system is designed to accommodate without a reactor or turbine trip, and the maximum electric load step change the reactor is designed to accommodate without reactor control rod motion or steam bypassing. 3. TBS lines and other TBS components in BWR plants that do not incorporate an MSIVLCS and that take credit for fission product holdup and plateout in the TBS are reviewed for compliance with the criteria of II.A and B.29 34. The reviewer uses engineering judgment and the results of failure modes and effects analyses to determine that: a. Failure of the TBS to operate will not preclude operation of any essential systems. Statements in the SAR that confirm the above are acceptable. DRAFT Rev. 3 - April 1996 10.4.4-6 b. Failure of the TBS high energy piping will not have adverse effects on any safety-related systems or components that may be located close to the system. For standard design certification reviews under 10 CFR Part 52, the procedures above should be followed, as modified by the procedures in SRP Section 14.3 (proposed), to verify that the design set forth in the standard safety analysis report, including inspections, tests, analysis, and acceptance criteria (ITAAC), site interface requirements and combined license action items, meet the acceptance criteria given in subsection II. SRP Section 14.3 (proposed) contains procedures for the review of certified design material (CDM) for the standard design, including the site parameters, interface criteria, and ITAAC.30 IV. EVALUATION FINDINGS The reviewer determines that sufficient information has been