A lightning arrester is a protective device installed in electrical systems to divert dangerous overvoltages safely to the ground. By providing a low-resistance path during surges, it prevents costly damage and ensures uninterrupted power supply.
In normal conditions, the arrester acts as an insulator, allowing electricity to flow smoothly. When a surge occurs, it instantly becomes conductive, channeling the excess energy into the ground, and then returns to its insulating state once the surge passes.
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