Document: NUREG-0800
Document ID: b4cff877-ab63-46c3-8140-32e309d767a2
Document Type: srp
Title: EMERGENCY DIESEL ENGINE STARTING SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070571.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.5.6
CFR Part: 
CFR Title: 

Content:
REVIEW RESPONSIBILITIES Primary - Power Systems Branch (PSB)Plant Systems Branch (SPLB)1 Secondary - None I. AREAS OF REVIEW The PSBSPLB review of the emergency diesel engine starting system (EDESS) includes those 2 system features necessary to assure reliable starting of the emergency diesel engine following a loss of offsite power to assure conformance with the requirements of General Design Criteria 2, 4, 5, and 17. The review includes the system air compressors, air dryers, air receivers, devices to crank the diesel engine, valves, piping up to the connection to the engine interface , filters, (1) and associated ancillary instrumentation and control systems. 1. The PSBSPLB reviews the EDESS to verify that: 3 a. Each emergency diesel engine has reliable, redundant starting systems of adequate starting capacity. b. The system complies with appropriate seismic requirements and quality standards, and has been properly designed, fabricated, erected, and tested. c. Essential portions of the system are housed within seismic Category I structures capable of protecting the system from extreme natural phenomena, missiles, and DRAFT Rev. 3 - April 1996 9.5.6-2 the effects of pipe whip or jet impingement from high-and moderate-energy pipe breaks. d. For those plants that designate an emergency diesel engine as an alternate ac power source, the SPLB will determine the adequacy of the EDESS to perform its function in the event of a station blackout.4 2. The PSB will determine the adequacy of design, installation, inspection and testing of all electrical components (sensing, control, and power) required for proper operation of the system, including interlocks.5 Review Interfaces:6 SPLB also performs the following reviews under the SRP sections indicated:7 1. The Auxiliary Systems Branch (ASB)SPLB determines that the EDESS is in accordance with SRP Section 3.6.1Branch Technical Positions SPLB 3-1 and MEB 3-1 for breaks in high-energy and moderate-energy piping systems outside