The calculated load method applies to which categories of electrical loads?

The calculated load method applies to which categories of electrical loads?

• A. Lighting and appliances, including motor-operated appliances
• B. Lighting only
• C. Wiring methods only
• D. Outdoor equipment only

Answer: (A)

The calculated load method is used to determine the electrical demand for general-purpose circuits by summing the loads from lighting and general-use receptacles and appliances, including motor-operated appliances. This approach reflects that lighting, appliances, and motors are the main contributors to feeder and service demand, so they’re included in the calculation and then adjusted with applicable factors. Because of that, it applies to both lighting and appliances, including motor-operated devices. It isn’t about installation topics like wiring methods or outdoor equipment, and it isn’t limited to lighting alone.

The calculated load method is used to determine the electrical demand for general-purpose circuits by summing the loads from lighting and general-use receptacles and appliances, including motor-operated appliances. This approach reflects that lighting, appliances, and motors are the main contributors to feeder and service demand, so they’re included in the calculation and then adjusted with applicable factors. Because of that, it applies to both lighting and appliances, including motor-operated devices. It isn’t about installation topics like wiring methods or outdoor equipment, and it isn’t limited to lighting alone.