文章首先分析供电线路跨越架倒塌的原因，提出规范跨越架搭设标准，并设计加装跨越架报警装置，对今后线路跨越施工有重要指导意义。%Firstly the causes of line crossing frame collapse are analyzed and then the crossing frame set-up standard is put forward. Crossing frame alarm device is added into the design, which has important guiding significance for the line crossing construction in the future.
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