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When live working on distribution network lines, workers must wear a full set of insulation protection appliances. Insulation sleeve is an important insulation tool for live working. In order to ensure that the insulation tools are qualified, effective, safe and reliable, it is necessary to test the tools. In this paper, the test method is used to analyze the two electrical test layout methods of direct water electrode and wet electrode (immersion). The effects of dielectric solution and water on the mechanical and insulating properties of class 3 and class 4 insulation sleeves in the two test methods were analyzed. The results indicate: the dielectric solution has a great influence on the mechanical and electrical properties of the insulating sleeve. The tensile strength and puncture resistance are reduced by more than 25%. The breakdown phenomenon occurs in alls of the samples in the AC withstand voltage test after soaking. Water has little effect on the mechanical properties of the insulation sleeve, which is less than 10%. There is no difference before and after immersion in AC withstand voltage test. The research results are helpful to know the revision of insulation sleeve standard.

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Study on the Influence of Electrical Test Arrangement on the Performance of Insulation Sleeves

  • 会议论文

  • 发表日期：

    2025年

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  • Rou Chen,
  • Zhipeng Qiu,
  • Ying Xu,
  • Chuanguang Zheng,
  • Xiang Zhu,
  • Fei Liu,
  • Shun Wang,
  • Lin Nie

摘要

When live working on distribution network lines, workers must wear a full set of insulation protection appliances. Insulation sleeve is an important insulation tool for live working. In order to ensure that the insulation tools are qualified, effective, safe and reliable, it is necessary to test the tools. In this paper, the test method is used to analyze the two electrical test layout methods of direct water electrode and wet electrode (immersion). The effects of dielectric solution and water on the mechanical and insulating properties of class 3 and class 4 insulation sleeves in the two test methods were analyzed. The results indicate: the dielectric solution has a great influence on the mechanical and electrical properties of the insulating sleeve. The tensile strength and puncture resistance are reduced by more than 25%. The breakdown phenomenon occurs in alls of the samples in the AC withstand voltage test after soaking. Water has little effect on the mechanical properties of the insulation sleeve, which is less than 10%. There is no difference before and after immersion in AC withstand voltage test. The research results are helpful to know the revision of insulation sleeve standard.