How are fuses classified?

Fuses are classified based on voltage levels primarily to ensure they are suitable for the specific electrical systems they protect. High voltage fuses are designed for systems operating at voltages above standard levels, often used in industrial and utility applications. Low voltage fuses, on the other hand, are intended for residential and light commercial systems, ensuring they can safely interrupt faults without harming the rest of the electrical infrastructure.

This classification is crucial because using a fuse rated for the wrong voltage can lead to improper protection of electrical circuits, resulting in equipment damage or even safety hazards. Understanding this classification helps linemen and electricians select the appropriate type of fuse for a given application, ensuring both the safety and reliability of electrical systems.