How does a correctly sized conduit contribute to electrical safety?

A correctly sized conduit plays a vital role in maintaining electrical safety primarily by preventing overheating due to the overcrowding of wires. When multiple wires are installed in a conduit, if the conduit is insufficiently sized, the wires can become tightly packed. This overcrowding limits the airflow around the wires, which is necessary for dissipating the heat generated during electrical current flow. Elevated temperatures can lead to insulation breakdown, which increases the risk of short circuits, electrical fires, or even equipment failure.

In contrast, a conduit that is properly sized ensures that there is adequate space for the wires, allowing for proper heat dissipation and minimizing the risk of overheating. Additionally, this correct sizing can facilitate easier installation and maintenance, but the primary concern regarding safety hinges on managing temperatures within the conduit to prevent potential hazards. As such, the correct answer highlights the significant aspect of thermal management in electrical safety provided by a properly sized conduit.