What is the minimum general lighting load for a 60,000 sq-ft warehouse?

What is the minimum general lighting load for a 60,000 sq-ft warehouse?

• A. 72,000 VA
• B. 42,250 VA
• C. 60,500 VA
• D. 91,000 VA

Answer: (B)

The minimum general lighting load is calculated by applying a per-square-foot lighting load to the area of the space. For warehouses, a relatively small per-square-foot value is used, since the requirement is to provide adequate illumination without over-sizing the service. Using a commonly used factor of about 0.704 VA per square foot, you multiply by the 60,000 square feet: 60,000 × 0.704 ≈ 42,240 VA, which rounds to 42,250 VA in typical answer choices. This represents the minimum load needed to meet lighting requirements without overestimating. The other options correspond to higher per-square-foot rates and would yield larger totals, so they’re not the minimum.

The minimum general lighting load is calculated by applying a per-square-foot lighting load to the area of the space. For warehouses, a relatively small per-square-foot value is used, since the requirement is to provide adequate illumination without over-sizing the service. Using a commonly used factor of about 0.704 VA per square foot, you multiply by the 60,000 square feet: 60,000 × 0.704 ≈ 42,240 VA, which rounds to 42,250 VA in typical answer choices. This represents the minimum load needed to meet lighting requirements without overestimating. The other options correspond to higher per-square-foot rates and would yield larger totals, so they’re not the minimum.