Scholarlink

In recent years, operational failures in high voltage cables due to the ablation of cable buffer layers have significantly compromised power system safety. The ablation process generates characteristic gases from the buffer layer materials, which can serve as an early warning and diagnostic tool for ablation defects through gas detection methods. This study investigated the collection and analysis of gases emitted from buffer layers in decommissioned cables and those undergoing maintenance during power outages. The results show that the gas products during the buffer layer ablation process include CO2, H2, CO, and low molecular weight hydrocarbon gases. The characteristic gas detection method shows promise for identifying latent defects in areas with low electric field strength, such as those found in high-voltage cable buffer layers.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Characteristic Gas Analysis of Ablative Defect in Buffer Layer of High Voltage XLPE Cable

  • 会议论文

  • 发表日期：

    2025年

查看全文
  • Cheng Zhang,
  • Ning Li,
  • Qing Liu,
  • Zhiguo Liu,
  • Yuyang Jiao,
  • Nan Chen,
  • Shuyu Chen,
  • Yu Tang,
  • Chengyan Ren

摘要

In recent years, operational failures in high voltage cables due to the ablation of cable buffer layers have significantly compromised power system safety. The ablation process generates characteristic gases from the buffer layer materials, which can serve as an early warning and diagnostic tool for ablation defects through gas detection methods. This study investigated the collection and analysis of gases emitted from buffer layers in decommissioned cables and those undergoing maintenance during power outages. The results show that the gas products during the buffer layer ablation process include CO2, H2, CO, and low molecular weight hydrocarbon gases. The characteristic gas detection method shows promise for identifying latent defects in areas with low electric field strength, such as those found in high-voltage cable buffer layers.