Illumination in Working Spaces

Illumination shall be provided for all working spaces about service equipment, switchboards, panelboards, and motor control centers _____.

a) over 600V
b) located indoors
c) rated 1,200A or more
d) using automatic means of control

See answer and applicable Code reference

The correct answer is: b) located indoors

Access and working space requirements about electrical equipment are outlined in Sec. 110.26 of the 2011 NEC. As noted in 11

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