How does a loose connection affect an RFC test?

A loose connection during an RFC (Residual Fuel Current) test can introduce variability and increase resistance in the circuit. This can result in higher resistance readings than what would be expected under normal conditions. When connections are loose, they can create intermittent contact, which can add extra resistance to the circuit. As a consequence, the test may pick up this additional resistance, leading to readings that are artificially high.

Furthermore, a loose connection affects the stability of the circuit under test, causing fluctuations in measurements that can mislead the technician regarding the safety or performance of the electrical installation. The integrity of connections is critical for accurate testing, as any compromise can distort the results and give a false picture of the system’s condition.

In inspecting or testing electrical installations, ensuring that all connections are secure is paramount for reliable results. High readings due to loose connections indicate the need for further investigation, ensuring that the installation is safe and properly functioning.