装置结构的避雷保护。

I. Protection of structures against lightning.

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主线和外部信号线超过10米的，在线进入大楼的入口处时设置避雷保护，避免雷击。

Mains and external signal cables longer than 10 m shall in areas where lightning is frequent be protected with an external lightning surge protection at the cable entrance to the building.

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虽然避雷器能保护电子设备免受持续几毫秒的雷击，但保护器本身在每次雷击后都会有损耗。

While surge protectors shield electronics from the jolts that last milliseconds, the protectors themselves wear out with each strike.

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