Document: NUREG-0800
Document ID: 6cd85972-0d5c-413b-9587-fbbfd5521c9f
Document Type: srp
Title: COMPRESSED AIR SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070525.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.3.1
CFR Part: 
CFR Title: 

Content:
SAR to the effect that the above conditions are met are acceptable. b. The essential portions of the SRCAS are protected from the effects of floods, hurricanes, tornadoes, and internally or externally generated missiles. The location and the design of the system, structures, or cubicles are reviewed to determine that the degree of protection is adequate. A statement to the effect that the system is located in a seismic Category I structure that is tornado missile and flood protected, or that components of the system will be located in individual cubicles or rooms that will withstand the effects of tornado winds, flooding, and missiles is acceptable. The details of this portion of the review are contained in the Chapter 3 SRP sections.85 4. The reviewer evaluates the ICAS to determine that an adequate ICAS air supply source is available to cope with the following events: a.3.c. Loss of offsite power. An adequate SRCAS air supply source is available, considering the loss of offsite power. If the minimum performance requirements stated in the SAR are met, the system design will be acceptable assuming a concurrent failure of a single active component, including an emergency power source. Statements in the SAR and the results of failure modes and effects analyses are considered to ensure that the system meets these requirements. 9.3.1-11 DRAFT Rev. 2 - April 1996 These will be acceptable verification of system functional reliability. In addition, the reviewer determines that the equipment affected by the loss of offsite power and subsequent loss of air supply will fail in a safe position.86 b. Station Blackout. The review of station blackout is performed using the guidance of Regulatory Guide 1.155, and is coordinated with the review of a station blackout event under SRP Section 8.4 (proposed). If the capability and capacity of the ICAS are sufficient with respect to the plant's ability to withstand or cope with (for the specified duration), as applicable, and recover