Overheating of lighting fixtures, which often results in fires, is most often caused by ____.

Question

Quizplus · Accepted Answer

Burying recessed fixtures under thermal insulation can trap heat and cause them to overheat, while overlamping (using light bulbs with higher wattage than recommended for the fixture) can also cause overheating. Failure to ground metal fixture bodies properly can lead to electrical arcing and short-circuiting, which can also cause fires. Therefore, choices A and C are both correct.

Overheating of Lighting Fixtures, Which Often Results in Fires, Is