Document: NUREG-0800
Document ID: d6f7c640-9c89-4c04-a929-3caac89cdb95
Document Type: srp
Title: EMERGENCY DIESEL ENGINE COOLING WATER SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052350039.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.5.5
CFR Part: 
CFR Title: 

Content:
a such as earthquakes, tornadoes, hurricanes, and floods, as established in Chapters 2 and 3 of the SAR. Acceptance is based on meeting Appendix Position 13 of Regulatory Guide 1.117 as related to the protection of structures, systems, and components important to safety from the effects of tornado missiles. 2. General Design Criterion 4, with respect to structures housing the system and the system itself.being capable of withstanding the effects of external missiles and internally generated missiles, pipe whip, and jet impingement forces associated with pipe breaks. Acceptance is based on meeting Position C.1 of Regulatory Guide 1.115 as related to the protection of structures, systems, and components important to safety from the effects of turbine missiles. 3. General Design Criterion 5, as related to the capability of shared systems and components important to safety being capable of performing required safety functions. 4. General Design Criterion 17, as related to the capability of the cooling water system to meet independence and redundancy criteria, and General Design Criterion 44, to assure: a. The capability to transfer heat from systems and components to a heat sink under transient or accident conditions. b. Redundancy of components so that under accident conditions the safety function can be performed assuming a single active component failure. c. The capability to isolate components of the system or piping, if required to maintain the system safety function. 9.5.5-3 Rev. 2 - July 1981 To meet the requirements of these regulations the following guidance and positions are used: a. Regulatory Guide 1.9, as related to the design of the diesel cooling water system. b. Branch Technical Position ICSB-17 (PSB), as related to engine cooling water protective interlocks during accident conditions. C. NUREG/CR-0660, "Enhancement of Onsite Emergency Diesel Generator Reliability." d. IEEE Standard 387, as related to the design of the diesel engine cooling water system.