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Distribution Network Cable Detection Based on Terahertz Pulse and Imaging.

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Title: Distribution Network Cable Detection Based on Terahertz Pulse and Imaging.
Authors: Li, Guowei1 (AUTHOR) lgwexe@163.com, Zeng, Siming1 (AUTHOR), Wang, Qing1 (AUTHOR), Zhang, Zhenwei1 (AUTHOR)
Source: Russian Journal of Nondestructive Testing. Mar2024, Vol. 60 Issue 3, p318-325. 8p.
Subjects: Cross-linked polyethylene insulation, Water distribution, Terahertz technology, Cables, High voltages, Power transmission, Silicone rubber
Abstract: Moisture of high voltage distribution network cables will cause major safety hazard, but there is no effective means to detect and analyze the internal humidity state of the cables. Therefore, it is urgent to develop a new nondestructive detection method to evaluate the waterproof performance of distribution network cables and their connectors. The internal structure of the cable is a multilayer structure composed of wires, cross-linked polyethylene insulation layer, and silicone rubber insulation sheath. We used the reflective terahertz pulse signal to detect the internal states of the cable, and judge whether it contains water stains according to the echo characteristics. In addition, three-dimensional data was obtained through cylindrical coordinate scanning and terahertz images were reconstructed based on feature information, which were consistent with the distribution of water stains between the cable insulation sheath and cross-linked polyethylene insulation layer. The results show that the terahertz technology can realize the high sensitivity detection of cable moisture state, which is of great significance in the power and transmission industry. [ABSTRACT FROM AUTHOR]
Copyright of Russian Journal of Nondestructive Testing is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Distribution Network Cable Detection Based on Terahertz Pulse and Imaging.
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  Data: <searchLink fieldCode="AR" term="%22Li%2C+Guowei%22">Li, Guowei</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> lgwexe@163.com</i><br /><searchLink fieldCode="AR" term="%22Zeng%2C+Siming%22">Zeng, Siming</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Qing%22">Wang, Qing</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Zhenwei%22">Zhang, Zhenwei</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Russian+Journal+of+Nondestructive+Testing%22">Russian Journal of Nondestructive Testing</searchLink>. Mar2024, Vol. 60 Issue 3, p318-325. 8p.
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  Data: <searchLink fieldCode="DE" term="%22Cross-linked+polyethylene+insulation%22">Cross-linked polyethylene insulation</searchLink><br /><searchLink fieldCode="DE" term="%22Water+distribution%22">Water distribution</searchLink><br /><searchLink fieldCode="DE" term="%22Terahertz+technology%22">Terahertz technology</searchLink><br /><searchLink fieldCode="DE" term="%22Cables%22">Cables</searchLink><br /><searchLink fieldCode="DE" term="%22High+voltages%22">High voltages</searchLink><br /><searchLink fieldCode="DE" term="%22Power+transmission%22">Power transmission</searchLink><br /><searchLink fieldCode="DE" term="%22Silicone+rubber%22">Silicone rubber</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: Moisture of high voltage distribution network cables will cause major safety hazard, but there is no effective means to detect and analyze the internal humidity state of the cables. Therefore, it is urgent to develop a new nondestructive detection method to evaluate the waterproof performance of distribution network cables and their connectors. The internal structure of the cable is a multilayer structure composed of wires, cross-linked polyethylene insulation layer, and silicone rubber insulation sheath. We used the reflective terahertz pulse signal to detect the internal states of the cable, and judge whether it contains water stains according to the echo characteristics. In addition, three-dimensional data was obtained through cylindrical coordinate scanning and terahertz images were reconstructed based on feature information, which were consistent with the distribution of water stains between the cable insulation sheath and cross-linked polyethylene insulation layer. The results show that the terahertz technology can realize the high sensitivity detection of cable moisture state, which is of great significance in the power and transmission industry. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Russian Journal of Nondestructive Testing is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.1134/S1061830923601472
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      – Code: eng
        Text: English
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        PageCount: 8
        StartPage: 318
    Subjects:
      – SubjectFull: Cross-linked polyethylene insulation
        Type: general
      – SubjectFull: Water distribution
        Type: general
      – SubjectFull: Terahertz technology
        Type: general
      – SubjectFull: Cables
        Type: general
      – SubjectFull: High voltages
        Type: general
      – SubjectFull: Power transmission
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      – SubjectFull: Silicone rubber
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      – TitleFull: Distribution Network Cable Detection Based on Terahertz Pulse and Imaging.
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            NameFull: Li, Guowei
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            NameFull: Zeng, Siming
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            NameFull: Wang, Qing
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            NameFull: Zhang, Zhenwei
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            – D: 01
              M: 03
              Text: Mar2024
              Type: published
              Y: 2024
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