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Study on Ageing State of Nuclear Grade Medium Voltage Cable Based on PDC Method
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Yufei SUN1, Qingyu ZHANG2, Hao YUN1, Yizhou ZHANG1, Lei WANG1, Liang WANG1, Chun GUI1
Insulating Materials | 2022, 55(5) : 61 - 67
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Insulating Materials | 2022, 55(5): 61-67
• Insulation Technology •
Study on Ageing State of Nuclear Grade Medium Voltage Cable Based on PDC Method
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Yufei SUN1, Qingyu ZHANG2, Hao YUN1, Yizhou ZHANG1, Lei WANG1, Liang WANG1, Chun GUI1
Affiliations
  • 1China Nuclear Power Operation Technology Corporation, Ltd., Wuhan 430223, China
  • 2Huaneng Shandong Shidaowan Nuclear Power Co., Ltd., Weihai 264300, China
Published: 2022-05-20 doi: 10.16790/j.cnki.1009-9239.im.2022.05.009
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Nuclear grade medium voltage cables were conducted thermal-water tree and irradiation-water tree ageing tests. The nuclear grade medium voltage cables with different ageing time were tested by PDC method to obtain the conductivity under different voltages, and the nonlinear coefficients under different ageing conditions were obtained through the conductivity. The results show that with the increase of ageing time, the nonlinear coefficients of the cable samples under two ageing conditions increase gradually. Under the condition of heat-water tree combined ageing, with the increase of ageing time, the absorption peak intensity of O-H bond increases, indicating that the cable samples are water tree aged more seriously. In the irradiation-water tree ageing test, the absorption peak intensity of O-H bond increases slightly, indicating that the ageing degree of water tree increases. At the same time, although the characteristic peak of O-H bond appears near 1 640 cm-1 in the infrared spectra of water tree aged cable sample, the peak value changes little with the increase of irradiation dose. Therefore, the results of O-H bond absorption peak in infrared spectrum test can not well reflect the radiation ageing state of cable, but can only reflect the ageing state of water tree.

nuclear grade medium voltage cable  /  water tree  /  PDC  /  ageing state
Yufei SUN, Qingyu ZHANG, Hao YUN, Yizhou ZHANG, Lei WANG, Liang WANG, Chun GUI. Study on Ageing State of Nuclear Grade Medium Voltage Cable Based on PDC Method[J]. Insulating Materials, 2022 , 55 (5) : 61 -67 . DOI: 10.16790/j.cnki.1009-9239.im.2022.05.009
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Year 2022 volume 55 Issue 5
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Article Info
doi: 10.16790/j.cnki.1009-9239.im.2022.05.009
  • Receive Date：2021-05-26
  • Online Date：2025-12-22
  • Published：2022-05-20
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History
  • Received：2021-05-26
  • Revised：2021-07-12
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Affiliations
    1China Nuclear Power Operation Technology Corporation, Ltd., Wuhan 430223, China
    2Huaneng Shandong Shidaowan Nuclear Power Co., Ltd., Weihai 264300, China
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https://castjournals.cast.org.cn/joweb/jycl/EN/10.16790/j.cnki.1009-9239.im.2022.05.009
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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