What is a common sign of thermal overload in a circuit?

A common sign of thermal overload in a circuit is overheating wires and equipment. This phenomenon occurs when the electrical current flowing through a circuit exceeds the maximum capacity that the components can safely handle, leading to excessive heat generation. The heat can cause insulation to break down, potentially resulting in a short circuit or even electrical fires.

When wires and equipment become excessively hot, it serves as a critical warning that something is wrong in the circuit, prompting the need for investigation and possible corrective action to prevent damage or hazards. Recognizing the sign of overheating is essential for maintaining safe electrical systems and ensuring they operate effectively within their designed limits.