What is often a sign of loose connections in an electrical system?

Intermittent dimming of lights is a common indicator of loose connections in an electrical system. When connections between wires are not secure, the electrical flow can become erratic, leading to fluctuations in voltage. This results in moments when the lights may dim unexpectedly as the current struggles to pass through the loose connection. In contrast, a steady brightness in lighting fixtures would suggest a stable connection, while increased power factor and consistent voltage output indicate a well-functioning electrical system with strong, secure connections. Therefore, the presence of intermittent dimming strongly points to potential issues with connectivity that need to be addressed.