Document: NUREG-0800
Document ID: 92e07546-68d7-4c8e-a984-7d1f1f4d882d
Document Type: srp
Title: EQUIPMENT AND FLOOR DRAINAGE SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0705/ML070550042.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.3.3
CFR Part: 
CFR Title: 

Content:
system or of other systems not designed to seismic Category I standards and located close to safety-related portions of the system or of nonseismic Category I structures that house, support, or bound safety-related EFDS portions do not preclude operation of safety-related EFDS portions. Reference to SAR Chapter 2 (which describes site features) and the general arrangement and layout drawings is necessary. SAR statements to the effect that the conditions are met are acceptable. B. System capability and design features to prevent drain or flood water from backing up in the drainage system into areas housing safety-related equipment is incorporated. SAR statements that this capability is provided are acceptable. C. The system controls and directs the flow of radioactive waste fluids to the radwaste area. The design is acceptable if the system P&IDs and design criteria show that the potential for inadvertent transfer of contaminated fluids to noncontaminated drainage system for disposal is precluded. 4. The SAR descriptive information, P&IDs, EFDS drawings, and failure modes and effects analyses are reviewed for whether safety-related system portions can function as required following design-basis accidents, assuming a concurrent failure of a single, active component. The reviewer evaluates the analyses presented in the SAR for assured function of required components, traces the availability of these components on system drawings, and checks that the SAR verifies whether minimum system flow requirements are met for each accident situation for the required time spans. For each case, the design is acceptable if it meets minimum system requirements. 5. For review of a DC application, the reviewer should follow the above procedures to verify that the design, including requirements and restrictions (e.g., interface requirements and site parameters), set forth in the final safety analysis report (FSAR) meets the acceptance criteria. DCs have referred to the FSAR as the