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:
SYSTEM REVIEW RESPONSIBILITIES Primary - Power Systems Branch (PSB)Plant Systems Branch (SPLB)1 Secondary - None I. AREAS OF REVIEW The emergency diesel engine combustion air intake and exhaust system (EDECAIES) supplies combustion air of reliable quality to the diesel engines, and exhausts the products of combustion from the diesel engines to the atmosphere. The PSBSPLB reviews the system from the outside 2 air intake to the combustion air supply lines connected to the diesel engine interface, and from 1 the exhaust connections at the diesel engine interface to the discharge point outside the (1) building to assure conformance with General Design Criteria 2, 4, 5, and 17. 1. The PSBSPLB reviews the EDECAIES to verify that: 3 a. The system design meets appropriate seismic design classification requirements and the components are designed, fabricated, erected, and tested to acceptable quality standards. b. The essential portions of the system are housed in or on a seismic Category I structure that is capable of protecting the system from extreme natural phenomena and external missiles. DRAFT Rev. 3 - April 1996 9.5.8-2 c. Each diesel engine has an independent combustion air intake and exhaust system. d. The consequences of a single active failure in an engine combustion air intake or exhaust system will not lead to the loss of function of more than one diesel generator. 2. For those plants that designate an emergency diesel engine as an alternate ac power source, the SPLB will determine the adequacy of the EDECAIES to perform its function in the event of a station blackout.4 2. The PSB will determine the adequacy of the design, installation, inspection and testing of all electrical systems (sensing, control and power) required for proper system operation and will evaluate the protection provided to the electrical system from dust accumulation in SRP Section 8.3.1.5 Review Interfaces:6 SPLB also performs the following reviews under the SRP sections indicated:7 1. The