Published February 1982
| Version v1
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San Onofre/Zion auxiliary feedwater system seismic fault tree modeling
Description
As part of the study for the seismic evaluation of the San Onofre Unit 1 Auxiliary Feedwater System (AFWS), a fault tree model was developed capable of handling the effect of structural failure of the plant (in the event of an earthquake) on the availability of the AFWS. A compatible fault tree model was developed for the Zion Unit 1 AFWS in order to compare the results of the two systems. It was concluded that if a single failure of the San Onofre Unit 1 AFWS is to be prevented, some weight existing, locally operated locked open manual valves have to be used for isolation of a rupture in specific parts of the AFWS pipings
Availability note (English)
MF available from INIS under the Report Number; Available from NTIS., PC A03/MF A01 as DE82019241.
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Additional details
Publishing Information
- Imprint Pagination
- 39 p.
- Report number
- UCRL--15491
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 14724152
- Subject category
- S61: RADIATION PROTECTION AND DOSIMETRY; S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
- Descriptors DEI
- AUXILIARY WATER SYSTEMS; FAULT TREE ANALYSIS; FEEDWATER; PIPES; REACTOR SAFETY; SAN ONOFRE-1 REACTOR; SEISMIC EFFECTS; STRESS ANALYSIS; ZION-1 REACTOR
- Descriptors DEC
- ENRICHED URANIUM REACTORS; HYDROGEN COMPOUNDS; OXYGEN COMPOUNDS; POWER REACTORS; PWR TYPE REACTORS; REACTORS; SAFETY; SYSTEM FAILURE ANALYSIS; SYSTEMS ANALYSIS; THERMAL REACTORS; WATER; WATER COOLED REACTORS; WATER MODERATED REACTORS