lightning arrester definition

  • noun:
    • A protective unit for electric gear that decreases excessive voltage resulting from lightning to a safe degree by grounding the discharge.
    • a computer device, at spot in which a wire goes into a building, for stopping damage by lightning to an operator or tool. It consists of a brief circuit to the surface interrupted by a thin nonconductor over which lightning jumps. Known as in addition lightning discharger.
    • electric product inserted in an electrical range to protect gear from sudden variations in existing

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  • Hypernym for "lightning arrester"
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