Show-Window Lighting Load Calculations

The minimum feeder load for show-window lighting is _____ per linear foot.

a) 180VA
b) 200VA
c) 300VA
d) 400VA

See answer and applicable Code reference

The correct answer is: b) 200VA

You'll find feeder and service load calculation requirements in Part III of Art. 220 of the 2011 NEC. As noted in Sec. 220.43(A), "For show-window lighting, a load of not less than 660VA/linear meter or 200VA/linear foot shall be included for a show-window, measured horizontally along its base."