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:
tions of the system are correctly identified and are isolable from the non-safety-related portions of the system.9 32. ASBSPLB reviews the system to determine that the effects of failure of nonseismic 10 Category I equipment or components will not affect the functioning of the SRCAS ICAS to ensure that the effects of failure of the non-safety-related portions or non-seismic Category I equipment or components will not preclude operation of the safety-related portions of the ICAS.11 13. ASBSPLB reviews the systems to identify the safety-related and non-safety-related 12 13 air-operated devices that are supplied by the systemICAS and whether each requires a 14 source of supply air in order to perform the safety-related function. 24. ASBSPLB then reviews the systems to determine ensure that a failure of a component 15 or the loss of a compressed air source does not negate functioning of a safety-related systemnot prevent any safety-related system, subsystem, or device from performing its safety-related function. 16 45. ASBSPLB reviews the design of the SRCAS ICAS with respect to the following: 17 18 a. Capability to isolate portions or components of the system in case of component malfunction. b. Instrumentation and control features provided to determine and verify that the system is operating in a correct mode (e.g., valve position indication, pressure). c. Capability of the system to function in the event of adverse environmental phenomena, abnormal operational requirementsoperation including station blackout , or accident conditions such as a loss-of-coolant accident (LOCA) or 19 main steam line break concurrent with loss of offsite power. The duration considered with respect to such events/conditions includes the time interval from the onset of the event/condition until the ICAS safety function is no longer required.20 d. Capability of the system (including interconnected systems designed to provide backup capability to the ICAS) to supply clean, dry, oil-free