lightning arrester

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lightning arrester

A protective device for electrical equipment that reduces excessive voltage resulting from lightning to a safe level by grounding the discharge.

lightning arrester

(Engineering / Electrical Engineering) a device that protects electrical equipment, such as an aerial, from an excessive voltage resulting from a lightning discharge or other accidental electric surge, by discharging it to earth

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Noun

lightning arrester - electrical device inserted in a power line to protect equipment from sudden fluctuations in current

spike arrester, spike suppressor, surge protector, surge suppressor

suppresser, suppressor - an electrical device for suppressing unwanted currents

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