What is a common sign of electrical overload?

Flickering lights is a common sign of electrical overload. This phenomenon occurs when the electrical system is unable to supply enough power to the connected devices, resulting in fluctuations in voltage. As the system struggles to accommodate all devices drawing power simultaneously, lights may dim or flicker as the load exceeds the circuit capacity.

Increased voltage is not typically associated with overload; instead, overload situations usually lead to a drop in voltage due to excessive current draw. Cool wiring does not indicate overload; in fact, overloaded circuits often become warm or hot to the touch due to the resistance encountered as electrical current passes through conductors. Finally, the silent operation of appliances is contrary to the effects of an overload; overloaded circuits may cause appliances to function erratically or shut down, not operate silently.