State Grid Tianjin Electric Power Company

Electric Power Science & Research Institute of State Grid Tianjin Electric Power Company

Fei Lu

Chi Zhang

Wei Fan

Chun He

Longji Li

Qinghua Tang

Lei Yang

Songyuan Li

Lin Li

Yang Yu

Minghui Duan

Haoming Wang

Pengxian Song

Xiaoguang Wang

Shengchen Fang

Chunhui Zhang

Weibo Li

Xuliang Zhu

The present disclosure provides a defect detection method and apparatus for a cushion layer of a cable, a device, and a storage medium. The method includes: obtaining specification parameters of a corrugated sheath of a to-be-detected cable, calculating a first volume of a cushion layer without deformation and a second volume of a deformed portion of the cushion layer when the cushion layer is deformed under stress, and calculating a stressed-state deformation ratio of the cushion layer based on the first volume and the second volume; obtaining a voltage, a current, an electrode area, an electrode distance, and an initial electrode distance of the cushion layer when the stressed-state deformation ratio is reached, and calculating volume resistivity of the cushion layer; and comparing the volume resistivity with a preset evaluation parameter to obtain a defect detection result of the cushion layer.

Defect detection method and apparatus for cushion layer of cable, device, and storage medium

Growing community of inventors

Tianjin, China

Fei Lu