Fire PRA Methods

The following methods have been reported to EPRI as having been evaluated to determine whether or not they are NDMs. The information herein is provided by a cognizant party who conducted an NDM peer review or is otherwise involved in the assessment of a method in the NDM context. EPRI does not verify the information provided and the listing of methods here does not imply EPRI endorsement, verification, or review.

Date	Title	Description	Implementing Document	Is this a “Newly Developed Method (NDM)”?	Link to NDM Decision Justification	Has a NDM Peer Review been conducted?	Link to NDM Peer Review Public Summary
August 2023	Modeling of In-Cabinet Fire Damage in Fire PRA Applications	Provides guidance on modeling partial fire damage within a cabinet for Group 4 (of NUREG-2178 Vol. 1) electrical cabinet multi-function control cabinets. This method is not applicable to switchgear, load centers, motor control centers, inverters, or battery chargers. This approach is used to sub-divide fire scenarios that would only damage a single cabinet. This approach establishes a frequency modifier to predict the likelihood that a fire will result in partial loss of cabinet functions with diverse power supplies as well as the likelihood all functions will be lost.	CA-MISC-035	Y	CA-MISC-035	Y	CA-MISC-035