https://externalhazards.epri.com/index.php?action=history&feed=atom&title=Methods%2FProbabilistic_Risk_AssessmentMethods/Probabilistic Risk Assessment - Revision history2026-07-02T01:34:11ZRevision history for this page on the wikiMediaWiki 1.39.8https://externalhazards.epri.com/index.php?title=Methods/Probabilistic_Risk_Assessment&diff=108&oldid=prevAdmin: 1 revision imported2026-06-09T22:29:37Z<p>1 revision imported</p>
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<p><b>New page</b></p><div><!-- PAGE METADATA<br />
page_type: methodology_overview<br />
page_id: METHOD_PRA<br />
canonical_hazard_id: N/A<br />
related_hazard_ids: N/A<br />
authoritative: true<br />
revision_date: 2026-05-07<br />
status: placeholder_v1.0<br />
summary: Overview of probabilistic risk assessment as applied to external hazards at nuclear power plants, covering the graded approach, hazard-specific PRA modules, and integration with the plant risk model.<br />
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'''Probabilistic Risk Assessment for External Hazards'''<br />
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Probabilistic Risk Assessment for external hazards extends the plant's internal-events PRA framework to account for initiating events and failure modes caused by phenomena originating outside the plant boundary. The objective is to quantify each credible external hazard's contribution to core damage frequency and large early release frequency, producing risk metrics that support risk-informed decision making, licensing, and program prioritization.<br />
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{{#tag:div|'''MORE INFO COMING SOON''' — This page is under active development. Detailed content will be available in an upcoming update to the External Hazards Knowledge System.|style=background:#E8F4FD;color:#1B4F72;padding:16px;border:2px solid #85C1E9;border-radius:8px;font-size:110%;margin:24px 0;text-align:center;}}<br />
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''Return to [[Methods and Tools]].'' | ''EPRI technical point of contact: Chris Rochon ([mailto:CRochon@epri.com CRochon@epri.com])''<br />
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''Date last reviewed: 2026-05-07''</div>10.1.236.167