What important function does a bushing serve on a conduit running into a panel box?

A bushing serves a crucial role in protecting the wires that run through a conduit into a panel box. Specifically, it prevents injury to the wires by ensuring a smooth transition at the entry point. This protection is vital as wires can suffer damage from the sharp edges of conduit openings or from vibrations during operation. By using a bushing, the risk of abrasion or cutting of the insulation surrounding the wires is significantly reduced.

This protection not only maintains the integrity of the electrical wiring but also ensures reliability and safety in the electrical system. Furthermore, keeping the wires safe from physical damage contributes to the overall longevity and performance of the electrical installation.