Aging Assessment of XLPE/CSPE LV Nuclear Power Cables Under Simultaneous Radiation–Mechanical Stresses
The preliminary results of an ongoing laboratory cable aging program are reported in this article. This work deals with the effect of simultaneous radiation–mechanical aging on the electrical and mechanical properties of XLPE/CSPE low-voltage unshielded nuclear power cables. The dielectric response...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-04-01
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| Series: | Energy Reports |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352484721012609 |
| _version_ | 1811332081272225792 |
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| author | Ramy S.A. Afia Ehtasham Mustafa Zoltán Ádám Tamus |
| author_facet | Ramy S.A. Afia Ehtasham Mustafa Zoltán Ádám Tamus |
| author_sort | Ramy S.A. Afia |
| collection | DOAJ |
| description | The preliminary results of an ongoing laboratory cable aging program are reported in this article. This work deals with the effect of simultaneous radiation–mechanical aging on the electrical and mechanical properties of XLPE/CSPE low-voltage unshielded nuclear power cables. The dielectric response, particularly the complex permittivity and the polarization/depolarization current (PDC), were investigated. At the same time, the Shore D hardness measurement was conducted as a mechanical property test. Cable samples were coincidingly aged under a bending diameter of 15 cm and a total dose of 240 kGy γ-irradiation at a 0.5 kGy/h dose rate. The real and imaginary parts of permittivity were investigated over a frequency range from 200 μHzto 1 Hz. The electrical parameters presented a monotonic increase with aging. Besides, the cable hardness has increased with increasing the radiation dose. Furthermore, the insulation conductivity has risen with aging, which strongly correlates with the imaginary permittivity at 1 mHz. The obtained results showed an excessive degradation of the cable samples under the combined radiation–mechanical aging as the insulation electrical and mechanical properties showed a good agreement. |
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| format | Article |
| id | doaj.art-6c48ceb6fac649e4a0f7e628d519aaf5 |
| institution | Directory Open Access Journal |
| issn | 2352-4847 |
| language | English |
| last_indexed | 2024-04-13T16:30:33Z |
| publishDate | 2022-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Energy Reports |
| spelling | doaj.art-6c48ceb6fac649e4a0f7e628d519aaf52022-12-22T02:39:35ZengElsevierEnergy Reports2352-48472022-04-01810281037Aging Assessment of XLPE/CSPE LV Nuclear Power Cables Under Simultaneous Radiation–Mechanical StressesRamy S.A. Afia0Ehtasham Mustafa1Zoltán Ádám Tamus2Department of Electrical Power and Machines Engineering, Faculty of Engineering, Helwan University, 1 Sherif st., Cairo 11792, Egypt; Department of Electric Power Engineering, Faculty of Electrical Engineering & Informatics, Budapest University of Technology & Economics, Műegyetem rkp. 3, Budapest 1111, Hungary; Corresponding author at: Department of Electrical Power and Machines Engineering, Faculty of Engineering, Helwan University, 1 Sherif st., Cairo 11792, Egypt.Department of Electrical Engineering, Faculty of Engineering & Technology, Gomal University, Dera Ismail Khan 29220, Pakistan; Department of Electric Power Engineering, Faculty of Electrical Engineering & Informatics, Budapest University of Technology & Economics, Műegyetem rkp. 3, Budapest 1111, HungaryDepartment of Electric Power Engineering, Faculty of Electrical Engineering & Informatics, Budapest University of Technology & Economics, Műegyetem rkp. 3, Budapest 1111, HungaryThe preliminary results of an ongoing laboratory cable aging program are reported in this article. This work deals with the effect of simultaneous radiation–mechanical aging on the electrical and mechanical properties of XLPE/CSPE low-voltage unshielded nuclear power cables. The dielectric response, particularly the complex permittivity and the polarization/depolarization current (PDC), were investigated. At the same time, the Shore D hardness measurement was conducted as a mechanical property test. Cable samples were coincidingly aged under a bending diameter of 15 cm and a total dose of 240 kGy γ-irradiation at a 0.5 kGy/h dose rate. The real and imaginary parts of permittivity were investigated over a frequency range from 200 μHzto 1 Hz. The electrical parameters presented a monotonic increase with aging. Besides, the cable hardness has increased with increasing the radiation dose. Furthermore, the insulation conductivity has risen with aging, which strongly correlates with the imaginary permittivity at 1 mHz. The obtained results showed an excessive degradation of the cable samples under the combined radiation–mechanical aging as the insulation electrical and mechanical properties showed a good agreement.http://www.sciencedirect.com/science/article/pii/S2352484721012609XLPECSPELow-voltage cablesGamma irradiationMechanical stressesDielectric response |
| spellingShingle | Ramy S.A. Afia Ehtasham Mustafa Zoltán Ádám Tamus Aging Assessment of XLPE/CSPE LV Nuclear Power Cables Under Simultaneous Radiation–Mechanical Stresses Energy Reports XLPE CSPE Low-voltage cables Gamma irradiation Mechanical stresses Dielectric response |
| title | Aging Assessment of XLPE/CSPE LV Nuclear Power Cables Under Simultaneous Radiation–Mechanical Stresses |
| title_full | Aging Assessment of XLPE/CSPE LV Nuclear Power Cables Under Simultaneous Radiation–Mechanical Stresses |
| title_fullStr | Aging Assessment of XLPE/CSPE LV Nuclear Power Cables Under Simultaneous Radiation–Mechanical Stresses |
| title_full_unstemmed | Aging Assessment of XLPE/CSPE LV Nuclear Power Cables Under Simultaneous Radiation–Mechanical Stresses |
| title_short | Aging Assessment of XLPE/CSPE LV Nuclear Power Cables Under Simultaneous Radiation–Mechanical Stresses |
| title_sort | aging assessment of xlpe cspe lv nuclear power cables under simultaneous radiation mechanical stresses |
| topic | XLPE CSPE Low-voltage cables Gamma irradiation Mechanical stresses Dielectric response |
| url | http://www.sciencedirect.com/science/article/pii/S2352484721012609 |
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