Document: NUREG-0800
Document ID: 0dcda381-7ccf-499e-b926-b844f97fc4cf
Document Type: srp
Title: MAIN CONDENSERS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070586.pdf
Revision Date: 2023-06
Chapter: 10
Section ID: 10.4.1
CFR Part: 
CFR Title: 

Content:
REVIEW RESPONSIBILITIES Primary - Power Systems Branch (PSB)Plant Systems Branch (SPLB)1 Secondary - None I. AREAS OF REVIEW The main condenser (MC) system is designed to condense and deaerate the exhaust steam from the main turbine and provide a heat sink for the turbine bypass system. For new BWRs without a main steam isolation valve leakage control system (Ref. 3), the MC may also serve an accident mitigation function to act as a holdup volume for the plateout of fission products leaking through the main steam isolation valves following core damage (Ref. 4). 2 1. The PSBSPLB reviews the performance requirements of the main condenser for both 3 direct and indirect cycle plants during all operating conditions. Emphasis will be placed on the review of direct cycle facilities with regard to the prevention of loss of vacuum, corrosion and/or erosion, and hydrogen buildup. 2. The PSBSPLB reviews the design of the MC system with respect to the following: 4 a. The means to detect, control and facilitate correction of the leakage of cooling water into the condensate; to detect radioactive leakage into or out of the system; and to preclude accidental releases of radioactive materials to the environment in amounts in excess of established limits. DRAFT Rev. 3 - April 1996 10.4.1-2 b. Instrumentation and control features that determine and verify that the MC is operating in a correct mode. c. The means provided to deal with flooding from a complete failure of the MC and to preclude damage to safety-related equipment from the flooding. d. The capability of the MC to withstand the blowdown effects of steam from the turbine bypass system. 3. The Effluent Treatment Systems BranchSPLB evaluates the inventory of radioactive 5 contaminants in the MC during power operation and during shutdown as part of its primary review responsibility for SRP Section 11.5. 4. The Auxiliary Systems BranchSPLB determines that safety-related systems and 6 structures are protected from the effects of