Document: NUREG-0800
Document ID: b4dc2da5-bdfa-4120-9cf3-b2918a366a3e
Document Type: srp
Title: CONTROL ROOM AREA VENTILATION SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052350557.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.4.1
CFR Part: 
CFR Title: 

Content:
review and their methods of application are contained in the referenced SRP section of the corresponding primary branch. II. ACCEPTANCE CRITERIA Acceptability of the CRAYS design, as described in the applicant's safety analysis report (SAR), is based on specific general design criteria and regulatory guides. The design of safety-related portions of the CRAVS is acceptable if the integrated design of the system is in accordance with the following criteria: 1. General Design Criterion 2, as related to the system being capable of withstanding the effects of earthquakes. Acceptance is based on meeting the guidance of Regulatory Guide 1.29, position C.1 for safety-related portions, and position C.2 for nonsafety-related portions. 2. General Design Criterion 4, with respect to maintaining environmental conditions in the control room compatible with the design limits of essential equipment located therein during normal, transient, and accident conditions. 3. General Design Criterion 5, as related to shared systems and components important to safety. 4. General Design Criterion 19, as related to providing adequate protection to permit access and occupancy of the control room under accident conditions. Acceptance is based on meeting the guidance of Regulatory Guide 1.78 relating to instrumentation to detect and alarm any hazardous chemical release in the plant vicinity and relating to the systems capability to isolate the control room from such releases and the systems capability to meet the single failure criterion, positions C.3, C.7, and C.14, respectively; and Regulatory Guide 1.95 relating to the systems capability to limit the accumulation of chlorine within the control room and the systems capability to meet the single failure criterion, positions C.4a and C.4d. 9.4.1-3 Rev. 2 - July 1981 Regulatory Guide 1.95 relating to the systems capability to limit the accumulation of chlorine within the control room and the systems capability to meet the single failure