Document: NUREG-0800
Document ID: 7bdf9a80-e0a1-48fe-a048-0d2501e0ff68
Document Type: srp
Title: EMERGENCY DIESEL ENGINE COMBUSTION AIR INTAKE AND EXHAUST
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070573.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.5.8
CFR Part: 
CFR Title: 

Content:
minimize the ingestion of airborne particulate material over the entire time period that emergency power is required. The reviewer also verifies the following: a. That the intake design is reviewed to assure that the bottom of the intake opening is located a minimum of 6.1 m (20 feet) above grade. 46 b. That the SAR is reviewed to assure that provisions have been made to minimize the generation of dust, particularly in multiunit plants when one unit is operating and the other is under construction (abnormal generation of dust). 9.5.8-9 DRAFT Rev. 3 - April 1996 Dust control in the diesel generator rooms entering via the ventilation system is reviewed by ASBSPLB as part of its review responsibility for SRP Section 9.4.5. In SRP 47 Section 8.3.1, PSBEELB reviews the SAR to assure that the electrical equipment 48 associated with starting the diesel generators (e.g., auxiliary relay contacts, control switches, individually or panel mounted) are protected from dust accumulation, other deleterious material entering diesel generator room, and dust generated from concrete floors and walls. 9. For those plants that will use an emergency diesel generator as the AAC source in response to a station blackout event, the reviewer verifies the adequacy of the EDECAIES to support this functional capability, independent of preferred and onsite emergency ac power, by comparing system design with regulatory position C.3.3.5 of Regulatory Guide 1.155.49 For standard design certification reviews under 10 CFR 52, the procedures above should be followed, as modified by the procedures in SRP Section 14.3 (proposed), to verify that the design set forth in the standard safety analysis report, including inspections, tests, analysis, and acceptance criteria (ITAAC), site interface requirements and combined license action items, meet the acceptance criteria given in subsection II. SRP section 14.3 (proposed) contains procedures for the review of certified design material (CDM) for the standard