What defines an overload condition?

An overload condition is defined as a situation where the current flowing through a circuit exceeds its rated capacity for a prolonged period. This type of condition typically occurs when electrical devices draw more current than what the system can handle safely. In such cases, the excessive current can cause overheating, potentially damaging the equipment or creating a fire hazard.

When a circuit is overloaded, the protective devices, such as circuit breakers or fuses, are designed to respond to this elevated current by interrupting the circuit and preventing further damage. Understanding the nature of overloads is crucial for electrical professionals, as it informs the selection of appropriate protective devices and helps ensure safe operation within the rated limits of electrical systems.