What must be tested to ensure the integrity of electrical connections in a wiring system?

Testing for continuity is essential for ensuring the integrity of electrical connections in a wiring system. Continuity testing checks whether there is a complete electrical path between two points, which is crucial for the proper functioning of the system. When conducting a continuity test, a low-voltage signal is sent through the circuit, and if the signal travels without interruption, it confirms that the connections are secure and that there are no breaks in the wiring.

Having continuity in a connection means that electricity can flow as intended, which is vital for the operation of electrical devices and systems. If continuity were lacking, it could lead to failure in electrical performance, resulting in malfunctioning equipment or even safety hazards.

While insulation resistance, voltage levels, and current flow are important aspects of electrical testing, they do not specifically confirm the physical and electrical integrity of connections the same way continuity tests do. Insulation resistance focuses on the effectiveness of the insulation surrounding conductors, voltage levels measure the potential difference necessary for operation, and current flow studies the amount of electric charge passing through a circuit. Each of these plays a role in the overall functionality and safety of an electrical system, but testing continuity directly addresses the condition of the connections themselves.