Show-Window Lighting Load Calculations

April 30, 2014
You'll find feeder and service load calculation requirements in Part III of Art. 220 of the 2011 NEC.

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."

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