What testing method should be used to ensure that circuits are wired correctly?

Continuity testing is crucial for ensuring that circuits are wired correctly because it helps verify that there is a complete electrical path in the circuit. By applying a small voltage and measuring whether current can flow through the circuit, this method effectively identifies breaks or improper connections. If the circuit is continuous, a signal is typically sent back indicating a closed loop, confirming that wires are connected properly from one point to another.

This method is particularly useful before applying voltage to a newly installed circuit because it prevents potential damage to components and enhances overall safety. Instead of measuring voltage or resistance under load conditions, continuity testing provides a straightforward check to confirm good wiring.

Other testing methods, while valuable in different contexts—such as resistance testing to check for faulty components, voltage testing to ensure the proper voltage is present, and power testing to assess the load on the circuit—do not specifically confirm the correctness of the wiring layout. Therefore, continuity testing is the best method for verifying that circuits have been properly installed and are functioning as intended.