Fill in the blank with the appropriate answer.

When installing outdoor luminaires, you must place the fixtures below all energized conductors, transformers, or other electric utilization equipment, unless _________ .

A. Clearances or other safeguards are provided for re-lamping operations

B. Equipment is controlled by a disconnecting means that can be locked in the open position

C. Either A and B

D. Both A or B

Answer: C

As per Section 225.25 of the 2011 NEC, you must meet one of the requirements noted above (i.e., either A or B). The intent of this rule is to make it safe for someone to re-lamp the outdoor luminaire.

Owen is the owner and president of National Code Seminars and the holder of master electrician certifications in 46 states. He can be reached at