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DG-1型硅橡胶车顶支持绝缘子,能解决现国产电力机车车顶绝缘薄弱易发生闪络导致的机破问题。该绝缘子因具有重量轻(10KG),耐污性能好,免清扫等独特优点,将成为电力机车首选车顶支持绝缘子,可以根本消除因车顶绝缘闪络造成机破的现象。该绝缘子为复合结构绝缘子,主结构由玻璃芯棒外装硅橡胶伞盘组成,采用国内先进的芯棒上连续挤包护套新技术和套伞新工艺;在满足安装尺寸不变的前提下,采用4大3小交叉排列伞盘结构,使爬电距离达到900mm以上,绝缘子表面允许盐密度
DG-1-type silicone rubber roof support insulators, can solve the current domestic electric locomotive insulation is weak flashover easily lead to the machine broken problem. Due to its unique advantages such as light weight (10KG), good stain resistance and no-clean, the insulator will become the preferred roof support insulator for electric locomotives, which can eliminate the mechanical breakage caused by the flashover of the roof insulation. The insulators are composite structural insulators. The main structure consists of a glass mandrel rod filled with silicone rubber umbrella disc. The new technology of continuous extruded sheathing and the new umbrella sleeve technique are adopted in the domestic advanced mandrel rods. Under the premise of meeting the installation dimensions, Adopt 4 large 3 small cross arranged umbrella tray structure, make the creepage distance reach 900mm above, the surface of the insulator allows the salt density