What aspect of electrical systems greatly assists with troubleshooting?

In the context of troubleshooting electrical systems, clear labeling plays a crucial role in facilitating quick and effective identification of components and circuits. When all wires, panels, and connections are labeled accurately, technicians can quickly determine what each part of the system does, making it easier to localize and address issues. This clarity helps prevent confusion and reduces the time spent diagnosing a problem.

While color coding of conductors can certainly assist with quickly recognizing different types of wires or their functions (such as hot, neutral, or ground), labeling goes beyond this by providing specific information on what each component is and how it fits into the larger system. Proper grounding and redundant systems each contribute to system safety and reliability but do not directly aid in the troubleshooting process as effectively as clear labeling does.