Youth Falls From Ladder
While Changing Lightbulb
A 17-year-old retail
outlet worker died after falling 18 feet from a fiberglass extension
ladder while changing a 400 watt, 280 volt metal halide lightbulb,
a very common light fixture. The department manager had attempted
to change the bulb without success just minutes before, then told
workers to change it later with a forklift. The youth persisted
and repositioned the ladder attempting to change the bulb himself.
He lost his balance on top the ladder, or was electrically shocked,
and fell head first to the tiled concrete floor below. He received
massive head injuries and died enroute to the hospital.
Ceiling light fixtures hung from chains, therefore changing
bulbs was normally a two-handed job using a forklift with a pallet
on the forks. This light fixture was still energized at the time
of the accident and it is possible the youth was shocked prior
to the fall. This type of bulb has two electric
circuits, and it is possible that a non-functioning bulb may retain
the potential for a completed circuit, and could shock a worker
in certain situations. This could happen if the bulb was sufficiently
loose, he was touching the conductive collar, and he was grounded
elsewhere on his body. The youth was laying across an iron sprinkler
pipe which could have served as grounding.