Document: NUREG-0800
Document ID: 5b0d8000-eb22-442c-a759-c14fed5c9c67
Document Type: srp
Title: EQUIPMENT AND FLOOR DRAINAGE SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070535.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.3.3
CFR Part: 
CFR Title: 

Content:
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.56 IV. EVALUATION FINDINGS The reviewer verifies that sufficient information has been provided and his review supports conclusions of the following type, to be included in the staff's safety evaluation report: The equipment and floor drainage system includes all piping from equipment or floor drains to the sump, the sump pumps, and the associated pumps and piping network necessary to route effluents to the drain tanks and then to the radwaste system. Portions of the EFDS which are safety-related as determined by the following criteria are classified Sseismic Category I and Quality Group C. 57 a. If the system is capable of detecting leaks in safety systemsSSCs important to safety that utilize the drainage system sumps, and is the only means for such 58 leakage detection, it is considered safety-related in this regard. b. If the system can cause the inundation of safety-related areas due to drain backflow that may result from malfunction of active components, blockage or the probable maximum flood, it is considered safety-related in this area. c. If the system is connected so that an inadvertent transfer of contaminated fluids to non-contaminated drainage can occur, it is considered safety-related in this area. d. If a failure or malfunction in a portion of the system could result in adverse effects on essential systems or componentsSSCs important to safety (i.e., 59 necessary for safe shutdown, accident prevention or accident mitigation) it is considered safety-related in this area. The basis for acceptance in the staff review has been conformance of the applicant's designs and design