What are the functions of the inner and outer semiconductive layers of a cable?
In medium-, high-, and extra-high-voltage power cables, the inner and outer semi-conductive layers (also known as the conductor screen and insulation screen) function as electrical field-smoothing barriers. Because primary cable insulation like Cross-linked Polyethylene (XLPE) is highly sensitive to localized electrical stress gradients, these layers are indispensable for eliminating partial discharges and ensuring a perfectly […]