The Role of Metal Shielding Sleeves in High-Voltage Cable Accessories
2025-09-24
High-voltage cable accessories (terminals, connectors) feature metal shielding covers designed to ensure uniform electric fields, prevent corona discharge, and provide mechanical protection. These covers are typically made from copper or aluminum, with surfaces treated through processes like tin plating or galvanization to resist corrosion. During installation, the shielding cover must be reliably connected to the semiconducting layer of the cable, ensuring even distribution of the electric field and preventing localized discharges that could lead to insulation degradation.
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