避雷針
From Wikipedia, the free encyclopedia
避雷針（英文：Lightning Conductor），或者叫引雷針、接閃器、鐓針、避雷導線、富蘭克林針（個名嚟自發明者富蘭克林），係一種將閃電牽制到電擊地面嘅設備，可以截引閃電，將閃電嘅電流導入地下，同埋可以喺一定嘅面積範圍之內保護地面建築物或者電力設備，令受到電擊嘅設備避免受到雷電嘅破壞。常用嘅製造材料係銅。
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