Regulatory analysis for the resolution of Generic Issue 130: Essential service water system failures at multi-unit sites
Description
The essential service water system (ESWS) is required to provide cooling in nuclear power plants during normal operation and accident conditions. The ESWS typically supports component cooling water heat exchangers, containment spray heat exchangers, high-pressure injection pump oil coolers, emergency diesel generators, and auxiliary building ventilation coolers. Failure of the ESWS function could lead to severe consequences. This report presents the regulatory analysis for GI-130, ''Essential Service Water System Failures at Multi-Unit Sites.'' The risk reduction estimates, cost/benefit analyses, and other insights gained during this effort have shown that implementation of the recommendations will significantly reduce risk and that these improvements are warranted in accordance with the backfit rule, 10 CFR 50.109(a)(3). 19 refs., 16 tabs
Availability note (English)
MF available from INIS under the Report Number; OSTI as TI91014162; NTIS; INIS; GPO.
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Additional details
Publishing Information
- Imprint Pagination
- 30 p.
- Report number
- NUREG--1421
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 22085656
- Subject category
- S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
- Descriptors DEI
- AUXILIARY WATER SYSTEMS; COST; COST BENEFIT ANALYSIS; FAILURES; FAULT TREE ANALYSIS; LOSS OF COOLANT; NUCLEAR POWER PLANTS; PUMPS; PWR TYPE REACTORS; REACTOR COMPONENTS; REACTOR COOLING SYSTEMS; REACTOR SAFETY; RECOMMENDATIONS; RISK ASSESSMENT; SEALS; SYSTEMS ANALYSIS
- Descriptors DEC
- ACCIDENTS; AUXILIARY SYSTEMS; COOLING SYSTEMS; ECONOMIC ANALYSIS; ENRICHED URANIUM REACTORS; EQUIPMENT; NUCLEAR FACILITIES; POWER PLANTS; POWER REACTORS; REACTOR ACCIDENTS; REACTORS; SAFETY; SYSTEM FAILURE ANALYSIS; THERMAL POWER PLANTS; THERMAL REACTORS; WATER COOLED REACTORS; WATER MODERATED REACTORS
Optional Information
- Funding organization
- Nuclear Regulatory Commission, Washington, DC (USA).