What is the minimum feeder load in VA for a 40-foot long show window?

To determine the minimum feeder load for a show window, the National Electrical Code (NEC) provides guidelines based on the length of the show window and the required lighting load per linear foot. For a show window, the NEC specifies that the lighting load should typically be calculated at a rate of 200 volt-amperes (VA) per linear foot of display area.

In this scenario, a 40-foot long show window would require a calculation based on the per-foot load. By multiplying the 200 VA by the 40 feet, the total comes to 8,000 VA. This means that the feeder should be sized to accommodate this minimum load to ensure adequate lighting for the window display.

Thus, the choice indicating 8,000 VA aligns with the NEC's requirements for electrical load calculations for show windows, making it the correct answer in this context.