Two fall arrestors and handrails on all walkways.

两套防坠落装置，所有通道均有扶手。

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Current collectors, Junction boxes, Couplers, Electrical insulators, Brake systems, Surge arrestors.

电流收集器，接线盒，耦合器，电绝缘体，刹车系统，浪涌捕获器。

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A series of 6 lightning surge arrestors at corners between each pole and the earth and the various gauges.

在角落系列6雷电避雷器之间每极与地球和各种仪表。

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Power lines are extremely hostile places for data signals, with high levels of electronic noise and an obstacle course of transformers, surge arrestors and splices that create a huge impedance to the free flow of high-frequency signals.

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