A continuous load is defined as a load where the maximum current lasts for how long?

A continuous load is defined as a load where the maximum current is sustained for three hours or more. This definition is important in electrical installations and design because it helps in determining the appropriate sizing of conductors, breakers, and other components to ensure they can handle the prolonged current without overheating or failing.

The three-hour threshold is significant because electrical systems must be capable of supporting loads that operate continuously under maximum conditions. This ensures safety and efficiency in the system's performance, leading to prolonged equipment life and preventing potential hazards. Understanding this concept is essential for professionals managing electrical systems, particularly for compliance with regulations and standards that pertain to load management and circuit design.