应力锥

应力锥是一种特殊形状的部件，用于高压绝缘电缆终端，以管理和重新分配电缆终端点的电应力集中。它通过逐渐锥化绝缘界面来控制电场梯度，防止局部放电和绝缘失效。该部件对于维持中高压应用（通常为1kV至500kV）中的介电完整性至关重要。

应力锥通过几何形状控制电场。通过从电缆导电芯到周围绝缘的逐渐过渡，它降低了关键点的电场强度，防止了可能导致电晕放电、爬电或绝缘击穿的局部应力集中。锥形形状为电场线提供了受控路径，确保绝缘界面上应力分布均匀。

The stress cone operates on the principle of electric field control through geometric shaping. By creating a gradual transition from the cable's conductive core to the surrounding insulation, it reduces the electric field intensity at critical points. This prevents localized stress concentrations that could cause corona discharge, tracking, or insulation breakdown. The conical shape provides a controlled path for electric field lines, ensuring uniform stress distribution across the insulation interface.