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Title: Predictive aging results for cable materials in nuclear power plants

Abstract

In this report, we provide a detailed discussion of methodology of predicting cable degradation versus dose rate, temperature, and exposure time and its application to data obtained on a number of additional nuclear power plant cable insulation (a hypalon, a silicon rubber and two ethylenetetrafluoroethylenes) and jacket (a hypalon) materials. We then show that the predicted, low-dose-rate results for our materials are in excellent agreement with long-term (7 to 9 years), low dose-rate results recently obtained for the same material types actually aged under nuclear power plant conditions. Based on a combination of the modelling and long-term results, we find indications of reasonably similar degradation responses among several different commercial formulations for each of the following generic'' materials: hypalon, ethylenetetrafluoroethylene, silicone rubber and PVC. If such generic'' behavior can be further substantiated through modelling and long-term results on additional formulations, predictions of cable life for other commercial materials of the same generic types would be greatly facilitated. Finally, to aid utilities in their cable life extension decisions, we utilize our modelling results to generate lifetime prediction curves for the materials modelled to data. These curves plot expected material lifetime versus dose rate and temperature down to the levels of interestmore » to nuclear power plant aging. 18 refs., 30 figs., 3 tabs.« less

Authors:
;
Publication Date:
Research Org.:
Sandia National Labs., Albuquerque, NM (USA)
Sponsoring Org.:
DOE/NE
OSTI Identifier:
6189683
Report Number(s):
SAND-90-2009
ON: DE91006428; TRN: 91-004382
DOE Contract Number:  
AC04-76DP00789
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; 36 MATERIALS SCIENCE; ELECTRIC CABLES; AGING; NUCLEAR POWER PLANTS; DOSE RATES; ELECTRICAL INSULATION; EXPERIMENTAL DATA; MECHANICAL PROPERTIES; PHYSICAL RADIATION EFFECTS; REACTOR SAFETY; SERVICE LIFE; TEMPERATURE EFFECTS; CABLES; CONDUCTOR DEVICES; DATA; ELECTRICAL EQUIPMENT; EQUIPMENT; INFORMATION; NUCLEAR FACILITIES; NUMERICAL DATA; POWER PLANTS; RADIATION EFFECTS; SAFETY; THERMAL POWER PLANTS; 220200* - Nuclear Reactor Technology- Components & Accessories; 220900 - Nuclear Reactor Technology- Reactor Safety; 360603 - Materials- Properties; 360605 - Materials- Radiation Effects

Citation Formats

Gillen, K.T., and Clough, R.L.. Predictive aging results for cable materials in nuclear power plants. United States: N. p., 1990. Web. doi:10.2172/6189683.
Gillen, K.T., & Clough, R.L.. Predictive aging results for cable materials in nuclear power plants. United States. doi:10.2172/6189683.
Gillen, K.T., and Clough, R.L.. Thu . "Predictive aging results for cable materials in nuclear power plants". United States. doi:10.2172/6189683. https://www.osti.gov/servlets/purl/6189683.
@article{osti_6189683,
title = {Predictive aging results for cable materials in nuclear power plants},
author = {Gillen, K.T. and Clough, R.L.},
abstractNote = {In this report, we provide a detailed discussion of methodology of predicting cable degradation versus dose rate, temperature, and exposure time and its application to data obtained on a number of additional nuclear power plant cable insulation (a hypalon, a silicon rubber and two ethylenetetrafluoroethylenes) and jacket (a hypalon) materials. We then show that the predicted, low-dose-rate results for our materials are in excellent agreement with long-term (7 to 9 years), low dose-rate results recently obtained for the same material types actually aged under nuclear power plant conditions. Based on a combination of the modelling and long-term results, we find indications of reasonably similar degradation responses among several different commercial formulations for each of the following generic'' materials: hypalon, ethylenetetrafluoroethylene, silicone rubber and PVC. If such generic'' behavior can be further substantiated through modelling and long-term results on additional formulations, predictions of cable life for other commercial materials of the same generic types would be greatly facilitated. Finally, to aid utilities in their cable life extension decisions, we utilize our modelling results to generate lifetime prediction curves for the materials modelled to data. These curves plot expected material lifetime versus dose rate and temperature down to the levels of interest to nuclear power plant aging. 18 refs., 30 figs., 3 tabs.},
doi = {10.2172/6189683},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Nov 01 00:00:00 EST 1990},
month = {Thu Nov 01 00:00:00 EST 1990}
}

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