Which of these values is incorrect for the minimum VA for branch circuits to be utilized in calculations?

The minimum volt-amps (VA) values assigned for branch circuits are crucial for ensuring that electrical installations are sufficiently sized to handle the expected loads. For most residential and commercial applications, branch circuits supplying general lighting and receptacle outlets are typically calculated based on a standard minimum VA figure.

In this context, the correct response indicates that the value of 5000 VA is incorrect for use in branch circuit calculations. Generally, the typical minimum VA for calculations on branch circuits is set at lower thresholds such as 1500 VA for individual circuits dedicated to specific applications or 3000 VA for larger circuit requirements. Values like 4500 VA might be used in specific scenarios but would not be applied universally for standard calculations.

Therefore, recognizing the standard thresholds helps in preventing either undersizing or oversizing of conductors and equipment, which could lead to inefficiencies and potentially hazardous conditions. The selection of the value for 5000 VA indicates a misunderstanding of the established calculation requirements for branch circuits, as it surpasses the commonly acceptable ranges for typical residential applications.