一种高载流抗应力梯度绝缘电缆
By using a stress-dispersing layer formed by blending high-density polyethylene and thermoplastic polyurethane in the cable, combined with a thermally and electrically conductive network of carbon nanotubes, boron nitride nanosheets, and nano-silica, the problem of heat and stress gradient changes in the cable under high current carrying conditions is solved, thereby improving the cable's stress resistance and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NANJING HUJU LONGPAN CABLE CO LTD
- Filing Date
- 2025-10-23
- Publication Date
- 2026-07-17
AI Technical Summary
Existing cable insulation materials and buffer layer structures are insufficient to effectively cope with the heat and complex stress gradient changes generated under high current carrying conditions, leading to a decline in cable performance and local stress concentration, which affects service life and stability.
A stress-dispersing layer is formed by blending high-density polyethylene and thermoplastic polyurethane, and combined with carbon nanotubes, boron nitride nanosheets and nano-silica to form a thermally and electrically conductive dual network. Mechanical stress is dispersed through a three-dimensional stress transfer network, and a buffer layer and a metal shielding layer are added to optimize the cable structure.
It improves the cable's stress resistance, reduces electrostatic and thermal stress, enhances the cable's overall modulus and toughness, and ensures stable operation of the cable under high current-carrying conditions.
Smart Images
Figure SMS_1