NEC Commercial Electrical Practice Test

Which load calculation is applied to small-appliance branch circuits in dwelling units?

1. 1000 volt-amperes for each circuit

2. 1500 volt-amperes for each circuit

3. 2000 volt-amperes for each circuit

4. 2500 volt-amperes for each circuit

The correct answer is: 1500 volt-amperes for each circuit

For small-appliance branch circuits in dwelling units, the proper load calculation established by the National Electrical Code (NEC) is based on a standard capacity of 1500 volt-amperes for each circuit. This guideline helps ensure that these circuits can handle the expected load from common kitchen and dining appliances, which often have varying power demands. By assigning 1500 volt-amperes per circuit, it provides a reliable estimate for planning overall electrical needs within a dwelling and helps in determining the appropriate circuit breaker sizes, wiring, and overall load management for safety and efficiency. The other values listed (1000, 2000, and 2500 volt-amperes) do not align with the NEC's requirements for these specific small-appliance circuits. Adopting the correct value is critical for maintaining compliance with the NEC and ensuring the circuits can handle the typical demands of appliances such as toasters, microwaves, and blenders without risk of overload.