skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Response of Nuclear Power Plant Instrumentation Cables Exposed to Fire Conditions.

Abstract

This report presents the results of instrumentation cable tests sponsored by the US Nuclear Regulatory Commission (NRC) Office of Nuclear Regulatory Research and performed at Sandia National Laboratories (SNL). The goal of the tests was to assess thermal and electrical response behavior under fire-exposure conditions for instrumentation cables and circuits. The test objective was to assess how severe radiant heating conditions surrounding an instrumentation cable affect current or voltage signals in an instrumentation circuit. A total of thirty-nine small-scale tests were conducted. Ten different instrumentation cables were tested, ranging from one conductor to eight-twisted pairs. Because the focus of the tests was thermoset (TS) cables, only two of the ten cables had thermoplastic (TP) insulation and jacket material and the remaining eight cables were one of three different TS insulation and jacket material. Two instrumentation cables from previous cable fire testing were included, one TS and one TP. Three test circuits were used to simulate instrumentation circuits present in nuclear power plants: a 4–20 mA current loop, a 10–50 mA current loop and a 1–5 VDC voltage loop. A regression analysis was conducted to determine key variables affecting signal leakage time.

Authors:
 [1];  [1];  [1]
  1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USNRC; USDOE
OSTI Identifier:
1396075
Report Number(s):
SAND-2017-10346R
657270
DOE Contract Number:
AC04-94AL85000
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS

Citation Formats

Muna, Alice Baca, LaFleur, Chris Bensdotter, and Brooks, Dusty Marie. Response of Nuclear Power Plant Instrumentation Cables Exposed to Fire Conditions.. United States: N. p., 2017. Web. doi:10.2172/1396075.
Muna, Alice Baca, LaFleur, Chris Bensdotter, & Brooks, Dusty Marie. Response of Nuclear Power Plant Instrumentation Cables Exposed to Fire Conditions.. United States. doi:10.2172/1396075.
Muna, Alice Baca, LaFleur, Chris Bensdotter, and Brooks, Dusty Marie. 2017. "Response of Nuclear Power Plant Instrumentation Cables Exposed to Fire Conditions.". United States. doi:10.2172/1396075. https://www.osti.gov/servlets/purl/1396075.
@article{osti_1396075,
title = {Response of Nuclear Power Plant Instrumentation Cables Exposed to Fire Conditions.},
author = {Muna, Alice Baca and LaFleur, Chris Bensdotter and Brooks, Dusty Marie},
abstractNote = {This report presents the results of instrumentation cable tests sponsored by the US Nuclear Regulatory Commission (NRC) Office of Nuclear Regulatory Research and performed at Sandia National Laboratories (SNL). The goal of the tests was to assess thermal and electrical response behavior under fire-exposure conditions for instrumentation cables and circuits. The test objective was to assess how severe radiant heating conditions surrounding an instrumentation cable affect current or voltage signals in an instrumentation circuit. A total of thirty-nine small-scale tests were conducted. Ten different instrumentation cables were tested, ranging from one conductor to eight-twisted pairs. Because the focus of the tests was thermoset (TS) cables, only two of the ten cables had thermoplastic (TP) insulation and jacket material and the remaining eight cables were one of three different TS insulation and jacket material. Two instrumentation cables from previous cable fire testing were included, one TS and one TP. Three test circuits were used to simulate instrumentation circuits present in nuclear power plants: a 4–20 mA current loop, a 10–50 mA current loop and a 1–5 VDC voltage loop. A regression analysis was conducted to determine key variables affecting signal leakage time.},
doi = {10.2172/1396075},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2017,
month = 9
}

Technical Report:

Save / Share: