期刊
IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION
卷 28, 期 3, 页码 1028-1033出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TDEI.2021.009469
关键词
Power measurement; Aging; Reflectometry; Cable insulation; Routing; Reflection; Communication cables; cable insulation; transmission lines; reflectometry; dielectric aging; dielectric losses
资金
- Electric Power Research Institute (EPRI)
Spread spectrum time domain reflectometry (SSTDR) is used to test dielectric aging of a cable type used in the nuclear power plant industry. The data collected at 10-year intervals during the aging process showed a decrease in propagation velocity and characteristic impedance, indicating an increase in electrical permittivity as the cable aged. SSTDR proves to be a suitable method for monitoring and determining the aging of the cable.
Spread spectrum time domain reflectometry (SSTDR) is used to test dielectric aging of a cable type used in the nuclear power plant industry. A 16 AWG twisted pair shielded cable is thermally aged to the equivalence of 50 years in service, and SSTDR data are collected at 10-year intervals during the aging process. The SSTDR data shows that velocity of propagation and characteristic impedance decrease as the cable ages (increasing the electrical permittivity), making them suitable markers for monitoring aging and demonstrating the ability of SSTDR to determine this aging.
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