High-voltage cable preparation method, production line and high-voltage cable

The invention discloses a high-voltage cable preparation method, which comprises the steps of preparing a smooth aluminum sheath wire core, preparing an outer sheath and the like, and is characterized in that when the outer sheath is prepared, an insulating outer sheath is bonded and connected to the outer part of the smooth aluminum sheath through a bonding material of which the bonding force is not less than 4.0 kN/m. According to the preparation method of the high-voltage cable, the bonding force between the smooth aluminum sheath and the insulating outer sheath is enhanced, the bending condition of the cable is improved, the insulating performance of the cable is guaranteed, and the invention further provides a high-voltage cable production line and the high-voltage cable. 本发明公开了一种高压电缆制备方法，包括制备平滑铝护套线芯以及制备外护套等步骤，其中，制备外护套时，绝缘外护套通过粘结力不小于4.0kN/m的粘结材料粘结连接在平滑铝护套的外部。本发明的高压电缆制备方法，增强了平滑铝护套和绝缘外护套之间的粘结力，改善了电缆弯曲情况，并保证电缆绝缘性能，本发明还提供了一种高压电缆生产线以及高压电缆。