What is the purpose of a short bushing in electrical installations?

A short bushing serves the purpose of preventing wear on insulation in electrical installations. Within electrical systems, particularly in areas where wires are routed or passed through panels or enclosures, the likelihood of the wire's insulation being damaged increases due to abrasion or friction against rough edges or surfaces.

By utilizing a short bushing, the wire is protected from these potential wear points, which can compromise the integrity of the insulation. This is crucial because intact insulation is essential for preventing short circuits and ensuring the safety and reliability of the electrical system.

Other choices, though they mention important functions in electrical work, do not accurately describe the primary role of a short bushing. For instance, while wires often need to be connected or spliced, this is typically achieved with connectors or terminals rather than bushings. Strain relief is another important aspect in wiring installations, often accomplished with clamps or connectors. However, the specific role of a short bushing focuses solely on protecting the insulation from wear, highlighting its significance in maintaining the longevity and safety of electrical wiring.