Definitions for "Lightning Arrestor"
A device used to protect an electrical component from over-voltage.
Device which is connected to electrical equipment and also to the ground, to protect the equipment from lightning strikes and surges of high voltage by diverting it to the ground rather than the appliance.
This protects lines, transformers, and equipment from lightning surges by carrying the charge to the ground. Lightning arrestors serve the same purpose on a line as a safety valve on a steam boiler.