Document: NUREG-0800
Document ID: 545a669a-51a1-4b1f-9d90-78ee08ca0845
Document Type: srp
Title: COMBUSTIBLE GAS CONTROL IN CONTAINMENT
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070463.pdf
Revision Date: 2023-06
Chapter: 6
Section ID: 6.2.5
CFR Part: 
CFR Title: 

Content:
analyses are: a. To confirm the predictions of hydrogen and oxygen generation appearing in the safety analysis report. b. To verify that the systems provided for combustible gas control are capable of maintaining the concentrations of hydrogen and oxygen below the concentration limits specified in Table 1 of Regulatory Guide 1.7. 6.2.5-11 DRAFT Rev. 3 - April 1996 2. CSBSCSB determines that all potential, active mechanical failures and passive electrical 39 failures have been identified and that no single failure would incapacitate the entire system. Passive mechanical failures, beyond those possible from missile impact, need not be considered in view of the design and construction standards for the systems. 3. CSBSCSB compares the quality standards applied to the systems to Regulatory Guide 1.26. 4. CSBSCSB compares the seismic design classifications of the systems to Regulatory Guide 1.29. 5. CSBSCSB reviews the qualification testing of systems and components, to establish the functional capability of the equipment. 6. CSBSCSB reviews the provisions made in the design of the systems and the program for periodic inservice inspection and operability testing of the systems or components. The inspections are reviewed with regard to the purpose of each inspection. The operability tests that will be conducted are reviewed with regard to what each test is intended to accomplish. Judgment and experience from previous reviews are used to determine the acceptability of the inspection and test program. 7. CSBSCSB reviews the proposed technical specifications, for plants at the operating 40 licenseOL or COL stage of review, for the systems used to control combustible gas concentrations in the containment to assureensure that the requirements of General Design Criteria 5 , 41, 42 and 43 are met. 41 8. CSBSCSB reviews the capability to monitor system performance and control active components to be sure that control can be exercised over a system and that a malfunctioning system