How is the voltage drop in the power wire assessed?

The voltage drop in the power wire is assessed by comparing the voltage with the unit off to the voltage with the unit operating. This method provides a direct measurement of how much voltage is lost due to resistance in the wiring under load conditions. When the unit is off, the voltage should read at its normal, expected level. However, when the unit is operating, any significant drop in voltage indicates that there is a resistance problem in the wiring, which can lead to inefficient operation or malfunction of the unit.

Using this approach allows for a clear and direct observation of how the electrical system performs under realistic conditions, reflective of actual use. It is an effective way to gauge the performance of the power wire and the overall health of the electrical system.

The other methods, while they may provide some insights into the electrical system's functionality, do not directly measure the voltage drop in a way that captures the condition of the wire during operation. Measuring resistance alone doesn't account for the effects of current flow that occur during the unit's operation. Checking the amperage does provide useful information about the current flowing, but it does not show how much voltage is being dropped specifically due to the wire's resistance. Testing the voltage at the circuit breaker provides information about the voltage supply,