Cables are susceptible to faults caused by insulation aging, insulation moisture, cable overheating, mechanical damage, sheath corrosion, overvoltage, material defects, intermediate joints and terminal head design and manufacturing process problems during normal operation and maintenance operations.

The article outlines methods to pinpoint cable breakages in maintenance, such as using multimeters, electric pens, audio detectors, and cable fault testers. These techniques enhance repair efficiency, with a preference for non-invasive methods to protect cable insulation.

Discover the efficient cable fault testing system: Based on the principles of "thumping flash," it quickly locates cable issues and is widely used across industries to ensure electrical safety.