Document: NUREG-0800
Document ID: 91b47227-679e-4e3e-95a7-e32002caa9a9
Document Type: srp
Title: EMERGENCY DIESEL ENGINE COMBUSTION AIR INTAKE AND EXHAUST
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0705/ML070550033.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.5.8
CFR Part: 
CFR Title: 

Content:
ower units unless such sharing can be demonstrated not to impair their ability to perform safety functions, including in an accident in one unit an orderly shutdown and cooldown of the remaining unit. The EDECAIES safety function is to provide combustion air and an exhaust path for the emergency diesel engines in a loss of offsite power. Compliance with GDC 5 provides assurance that EDECAIES failures and events in one unit will not propagate to other units of the site. 4. GDC 17 requires provision of an onsite electric power system for the functioning of SSCs important to safety. GDC 17 requires the onsite electric power system to have sufficient independence and redundancy to perform safety functions, assuming a single failure. GDC 17 requirements provide assurance that electric power will be available for systems necessary (i) to prevent fuel damage in anticipated operational occurrences and (ii) to maintain core cooling and containment integrity in postulated accidents. 9.5.8-7 Revision 3 - March 2007 III. REVIEW PROCEDURES The reviewer will select material from the procedures described below, as may be appropriate for a particular case. These review procedures are based on the identified SRP acceptance criteria. For deviations from these acceptance criteria, the staff should review the applicant’s evaluation of how the proposed alternatives provide an acceptable method of complying with the relevant NRC requirements identified in Subsection II. For reviews under 10 CFR Part 50, the procedures below are used during the construction permit (CP) review to determine that the design criteria and bases and the preliminary design as set forth in the preliminary SAR meet the acceptance criteria of subsection II of this SRP section. For the review of operating license (OL) applications, the procedures are utilized to verify that the initial design criteria and bases are implemented appropriately in the final design as set forth in the final safety analysis report