Why is it important to avoid overloading a circuit?

Avoiding circuit overload is crucial because overloading can lead to overheating, which significantly increases the risk of electrical fires. When too much current flows through a circuit, the conductors can become excessively hot, potentially melting insulation materials or causing damage to components. This overheating can ignite nearby combustible materials, posing a serious safety hazard.

Properly recognizing and managing the load within a circuit ensures that the system operates efficiently and safely. By adhering to the rated capacity of the conductors and devices, one can maintain safe operating temperatures and substantially reduce the chance of fire incidents. This core electrical safety principle is fundamental for protecting both property and personal safety in electrical installations.