Document: NUREG-0800
Document ID: f673d9c7-5410-4f11-8c45-1935b546a77f
Document Type: srp
Title: EMERGENCY DIESEL ENGINE COOLING WATER SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070570.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.5.5
CFR Part: 
CFR Title: 

Content:
ents would not affect the safety-related functions of the EDECWS. 3. The PSBSPLB reviews the design of the EDECWS with respect to the following: 5 a. Functional capability during periods of abnormally high water levels (the probable maximum flood). b. Capability to detect and control system leakage, including isolating portions of the system in the event of excessive leakage or component malfunction. c. Measures to preclude long-term corrosion and organic fouling that would degrade system cooling performance, and the compatibility of any corrosion inhibitors or antifreeze compounds used with the materials of the system. d. The capacity of the EDECWS with regard to the manufacturer's recommended engine temperature differentials under adverse operating conditions. e. Provision of proper instruments and testing systems to permit operational testing of the system. f. Provisions to assure that normal protective interlocks do not preclude engine operation during emergency conditions. 4. For those plants that designate an emergency diesel engine as an alternate ac power source, the SPLB will determine the adequacy of the EDECWS to perform its function in the event of a station blackout.6 4. The PSB will determine the adequacy of the design installation, inspection, and testing of all electrical components (sensing, control, and power) required for proper operation of the system, including interlocks.7 Review Interfaces:8 9.5.5-3 DRAFT Rev. 3 - April 1996 SPLB also performs the following reviews under the SRP sections indicated:9 1. The SPLB determines that the EDECWS is protected against failures in high-energy and moderate-energy piping systems outside containment as part of its primary review responsibility for SRP Section 3.6.1; and10 2. The SPLB reviews the test program for monitoring the heat transfer capability of safety- related heat exchangers cooled by service water under SRP Section 9.2.1. If such tests indicate degradation in heat transfer capability that cannot