Document: NRC Regulatory Guide
Document ID: 74c49394-8dbf-46e7-b62a-b85de93b47d8
Document Type: regulatory_guide
Title: Initial Test Programs for Water-Cooled Nuclear Power Plants + HISTORY - HISTORY 11/2012 – DG-1259 , Proposed Revision 4 11/2006 – DG-1166 , Proposed Revision 3 (Rev. 4)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1229/ML12298A071.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.68
CFR Part: 
CFR Title: 

Content:
ation of otherwise clean portions of plant systems. Tests should be conducted, as appropriate, to verify redundancy and electrical independence (see footnote 3). A-1.l. Integrity of Systems Outside of Containment that Contain Radioactive Material for BWRs and PWRs In accordance with the requirement in 10 CFR 50.34(f)(2)(xxvi), applicants shall provide for leakage control and detection in the design of systems outside containment that could contain radioactive material following an accident. Furthermore, as part of the initial test program, applicants shall submit a leakage control program, a schedule for retesting these systems, and the actions to be taken to minimize leakage from these systems. The tests should include leak rate test results and a discussion of actions to reduce leakage from systems outside containment that could contain radioactive fluids or gases during or following a serious transient or accident. The goal is to minimize potential exposure to workers and the public, and to provide reasonable assurance that excessive leakage will not prevent the use of systems needed in an emergency. The systems to be included in the leakage testing program include the following: 1. residual heat removal; 2. containment spray; 3. high-pressure injection and recirculation; 4. containment spray recirculation; 5. primary coolant sampling; 6. reactor core isolation cooling (RCIC) (BWR only); 7. makeup and letdown (e.g., chemical volume control system) (PWR only); and 8. waste gas - Testing of gaseous systems should include helium leak detection or equivalent testing methods. A-1.m. Radioactive Waste Handling and Storage Systems Appropriate tests should be conducted to demonstrate the functional operability and design flow rates of systems and components that are used to process, store, and release (or control the release of) liquid, gaseous, and solid radioactive wastes. This testing should demonstrate, to the extent practical, that the pumps, tanks, controls,