36kv Porcelain Cut Out 100 Amp 200 Amp 10000 Long Mechanical Service Life

A fuse is a current interrupting device which protects a circuit by fusing open its current-responsive element when an overcurrent or short-circuit current passes through it. A fuse has these general functional characteristics: (1) It combines both a sensing and interrupting element in one self-contained device; (2) It is direct acting in that it responds only to a combination of magnitude and duration of current flowing through it; (3) It normally does not include any provision for making or breaking the connection to an energized circuit but requires separate devices to perform this function; (4) It is a single-phase device, such that only the fuse in the phase or phases subjected to overcurrent will respond to de-energize the affected phase or phases of the circuit that is faulty; (5) After having interrupted an overcurrent, it is replaced to restore service.

Fuses are typically employed in the electrical utility industry to protect distribution transformers, cables, capacitor banks and other equipment from damaging overcurrents. The fuses are arranged to disconnect the faulted equipment or circuit promptly from its source of supply before damage can occur.