Document: NUREG-0800
Document ID: 2cde5121-7267-482f-82a5-b36a0b9fc741
Document Type: srp
Title: ENGINEERED SAFETY FEATURE VENTILATION SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052350029.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.4.5
CFR Part: 
CFR Title: 

Content:
ry I and safety related. Based on the review of the applicant's proposed design criteria, design bases, and safety classification for the engineered safety feature ventilation system, and the require- ments for system performance to preclude equipment malfunction in 9.4.5-6 Rev. 2 - July 1981 the engineered safety feature areas due to a failure of the system during normal, abnormal, and accident conditions, the staff concludes that the design of the engineered safety feature ventilation system and supporting systems is acceptable and meets the Commission's regulations as set forth in General Design Criteria 2, 4, 5, 17, and 60. This conclusion is based on the following: 1. The applicant has met the requirements of GDC 2 with respect to the system being capable of withstanding the effects of earth- quakes by meeting the guidelines of Regulatory Guide 1.29, "Seismic Design Classification," Position C.1 for safety-related portions of the system and Position C.2 for nonsafety-related portions of the system. 2. The applicant has met the environmental requirements of GDC 4 by maintaining environmental conditions in essential areas within the design limits of the essential equipment located in these areas for normal, transient, or accident conditions. 3. The applicant has met the requirements of GDC 5 with respect to capability of shared systems and components important to safety to perform required safety functions since no postulated single active failure will prevent the system from performing its safety function. 4. The applicant has met the.requirements of GDC 17 as related to assuring proper functioning of the essential electric power system by meeting the guidelines of NUREG-CR/0660 as related to the accumulation of dust and particulate materials. 5. The applicant has met the requirements of GDC 60 with respect to the capability of the system to suitably-control release of gaseous radioactive effluents to the environment by meeting the guidelines of Regulatory Guide