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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The fact shows that the designed circuits can be used in impulse current test for arrestors, varistors and SPD.

实践证明：按照上述原则设计的回路可用于对避雷器阀片、压敏电阻及浪涌保护器SPD进行冲击电流检测。

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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.

FORBES: Magazine Article