What is the primary function of the arrestor in relation to electrical surges?

The primary function of an arrestor in relation to electrical surges is to minimize discharge voltage. Arrestors, commonly known as surge protective devices, are designed to protect electrical equipment by providing a low-resistance path to ground when an overvoltage condition occurs, such as during a lightning strike or power surge. By doing this, the arrestor helps to divert excess voltage away from sensitive components, thereby avoiding damage.

Minimizing discharge voltage is crucial because when voltage levels exceed the safe operating range of electrical devices, it can lead to malfunctions or failures. The arrestor effectively limits the voltage that can reach the equipment, ensuring that the electrical system remains safe and functioning. This protective mechanism is particularly vital in settings where fragile electronics are in use, making the arrestor an essential element in maintaining the integrity of electrical systems during unexpected voltage spikes.