Which methods are used to identify wires run between panels?

The wire label method and continuity test method are effective techniques for identifying wires run between panels. The wire label method involves affixing labels to wires at both ends, which provides clear identification of each wire's function or connection, thus making it easier for technicians to trace and manage the wiring system.

The continuity test method is a way to check if a circuit is complete and that there is a continuous path for current to flow. This method is particularly useful in a panel setup where numerous wires might be aggregated. By using a multimeter or continuity tester, a technician can determine if a specific wire is connected between the panels, which aids in procurement and troubleshooting efforts.

In contrast, other methods listed may not provide the specificity needed for wire identification between panels. Color coding and size measurement can offer some level of identification but are not definitive by themselves. Voltage and resistance tests are more about assessing the condition of the circuits rather than identifying particular wires. Signal tracing and clamp testing involve analyzing signals in the wires, which is necessary for troubleshooting but does not directly aid in identifying the wires' routing between panels.