Abstract
For medium voltage (MV) power cables with voltages between 5 and 35 kV that provide power to emergency and safety support systems in nuclear power plants (NPPs), degradation and failure of cables due to water exposure has occurred. Systematic studies of current NPP MV cable systems are being carried out to determine and characterize cable-aging mechanisms and provide greater accuracy to models being developed to predict MV cable field performance to support existing cable aging management and monitoring programs. To validate models based on representative laboratory specimens, samples from harvested MV cable systems are being subjected to accelerated aging and degradation from humid conditions and submergence. Degradation will be characterized via partial discharge and voltage endurance testing of the cable and induced water tree growth in insulation. The technical approach to be used for the testing harvested MV cable samples is presented.
Original language | English (US) |
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Title of host publication | Minerals, Metals and Materials Series |
Publisher | Springer International Publishing |
Pages | 1257-1265 |
Number of pages | 9 |
ISBN (Print) | 9783030046385, 9783030046392, 9783319515403, 9783319651354, 9783319728520, 9783319950211 |
DOIs | |
State | Published - 2019 |
Event | 18th International Conference on Environmental Degradation of Materials in Nuclear Power Systems – Water Reactors 2019 - Boston, United States Duration: Aug 18 2019 → Aug 22 2019 |
Publication series
Name | Minerals, Metals and Materials Series |
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ISSN (Print) | 2367-1181 |
ISSN (Electronic) | 2367-1696 |
Conference
Conference | 18th International Conference on Environmental Degradation of Materials in Nuclear Power Systems – Water Reactors 2019 |
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Country/Territory | United States |
City | Boston |
Period | 8/18/19 → 8/22/19 |
Bibliographical note
Publisher Copyright:© 2019, The Minerals, Metals & Materials Society.
Keywords
- Cross-linked polyethylene
- Medium voltage cables
- Water degradation