The roots of the arc must not be allowed to come into contact with insulator surface, whereas the middle of the arc channel can do so.
电弧弧根不应接触绝缘子表面，但允许电弧通道的中间部分可以擦过绝缘子。
This article talks about existing problems and solution on installation of section insulator in overhead contact net construction.
探讨了电气化铁路牵引供电系统接触网施工中安装分段绝缘器存在的问题，并提出了解决措施。
This article talks about existing problems and solution on installation of section insulator in overhead contact net construction.
探讨了电气化铁路牵引供电系统接触网施工中安装分段绝缘器存在的问题，并提出了解决措施。
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