Cable Hot Shorts and Circuit Analysis in Fire Risk Assessment

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Description

Under existing methods of probabilistic risk assessment (PRA), the analysis of fire-induced circuit faults has typically been conducted on a simplistic basis. In particular, those hot-short methodologies that have been applied remain controversial in regards to the scope of the assessments, the underlying methods, and the assumptions employed. To address weaknesses in fire PRA methodologies, the USNRC has initiated a fire risk analysis research program that includes a task for improving the tools for performing circuit analysis. The objective of this task is to obtain a better understanding of the mechanisms linking fire-induced cable damage to potentially risk-significant failure modes ... continued below

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5 Pages

Creation Information

LaChance, Jeffrey; Nowlen, Steven P. & Wyant, Frank May 19, 1999.

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This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 174 times , with 16 in the last month . More information about this article can be viewed below.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA
    Place of Publication: Albuquerque, New Mexico

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Description

Under existing methods of probabilistic risk assessment (PRA), the analysis of fire-induced circuit faults has typically been conducted on a simplistic basis. In particular, those hot-short methodologies that have been applied remain controversial in regards to the scope of the assessments, the underlying methods, and the assumptions employed. To address weaknesses in fire PRA methodologies, the USNRC has initiated a fire risk analysis research program that includes a task for improving the tools for performing circuit analysis. The objective of this task is to obtain a better understanding of the mechanisms linking fire-induced cable damage to potentially risk-significant failure modes of power, control, and instrumentation cables. This paper discusses the current status of the circuit analysis task.

Physical Description

5 Pages

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  • PSA 99; Washington, DC; 08/22-25/1999

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  • Other: DE00007257
  • Report No.: SAND99-1257C
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 7257
  • Archival Resource Key: ark:/67531/metadc709672

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Office of Scientific & Technical Information Technical Reports

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Creation Date

  • May 19, 1999

Added to The UNT Digital Library

  • Sept. 12, 2015, 6:31 a.m.

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  • Dec. 2, 2016, 8:50 p.m.

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LaChance, Jeffrey; Nowlen, Steven P. & Wyant, Frank. Cable Hot Shorts and Circuit Analysis in Fire Risk Assessment, article, May 19, 1999; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc709672/: accessed November 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.