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:
meets the specific criteria given in subsection II, item 4 of this SRP section. 3. The SAR is reviewed to assure that each diesel engine air start system has its own compressor and that the compressor capacity is adequate with respect to the air receiver capacities of the dedicated air starting system. For new applications, the compressor(s) should be of sufficient size to recharge the air start system in less than 30 minutes.47 4. The reviewer verifies that the system has been designed to be operated and maintained in the event of adverse environmental conditions such as hurricanes, tornadoes, or floods, and is protected against the effects of internally or externally generated missiles. 5. The reviewer determines that the failure of nonseismic Category I systems, structures, or components located close to the EDESS will not preclude operation of the system. 6. The reviewer determines that measures have been taken in the design of the EDESS to preclude the fouling of the air start valve or filter with moisture and contaminants such as oil and rust carryover. An air dryer(s) should be installed upstream of the air receiver(s) for the removal of entrained moisture. 7. The reviewer determines that essential portions of the EDESS are protected from the effects of high- and moderate-energy line breaks. Layout drawings are reviewed to assure that no high- or moderate-energy piping systems are close to the system, or that protection from the effects of failure are provided. The means of providing such DRAFT Rev. 3 - April 1996 9.5.6-8 protection are discussed in Section 3.6 of the SAR and the procedures for reviewing this information are given in the corresponding SRP sections. 8. The SAR information, P&IDs, related system drawings, and failure modes and effects analyses are reviewed to assure that minimum requirements of the system will be met following design basis accidents, assuming a concurrent single active failure and loss of offsite power. The analyses presented