Which factor might lead to the need for adjusting conductor size?

Adjusting conductor size is often necessary due to the distance of the electrical run. When electricity travels through a conductor, resistance is present, which can lead to voltage drop, especially over long distances. The longer the run, the more resistance the current encounters, which can result in insufficient voltage at the load end. To compensate for this voltage drop and ensure that the equipment operates efficiently and safely, larger conductors may be required.

This consideration helps to maintain adequate performance and minimize energy loss, ensuring that the electrical system functions as intended over the specified distance. Thus, the distance intrinsic to electrical runs is a critical factor in determining the appropriate conductor size.