Calculate show window load for 2 linear feet.

Calculate show window load for 2 linear feet.

• A. 400 VA
• B. 800 VA
• C. 200 VA
• D. 1000 VA

Answer: (A)

Show window load is found by applying a fixed lighting allowance per linear foot and multiplying by the length of the window in feet. For display windows, the common rule of thumb is 200 VA per linear foot. So for a 2-foot-long window, you multiply 2 by 200 VA/ft to get 400 VA. This VA figure represents the apparent power the window lighting will draw; since lighting loads are largely resistive, VA is close to watts, so it’s a practical way to size the circuit. If a different per-foot value were used, the total would change (e.g., 100 VA/ft would give 200 VA, 400 VA/ft would give 800 VA), but with the standard 200 VA/ft, two feet yields 400 VA.

Show window load is found by applying a fixed lighting allowance per linear foot and multiplying by the length of the window in feet. For display windows, the common rule of thumb is 200 VA per linear foot. So for a 2-foot-long window, you multiply 2 by 200 VA/ft to get 400 VA. This VA figure represents the apparent power the window lighting will draw; since lighting loads are largely resistive, VA is close to watts, so it’s a practical way to size the circuit. If a different per-foot value were used, the total would change (e.g., 100 VA/ft would give 200 VA, 400 VA/ft would give 800 VA), but with the standard 200 VA/ft, two feet yields 400 VA.