Physics, 15.12.2019 22:31 skyeeeeweeesnddj
One employee was climbing a metal ladder to hand an electric drill to the journeyman installer on a scaffold about five feet above him.
when the victim reached the third rung from the bottom of the ladder he received an electric shock that killed him. the investigation
revealed that the extension cord had a missing grounding prong and that a conductor on the green grounding wire was making
intermittent contact with the energizing black wire thereby energizing the entire length of the grounding wire and the drill's frame.
the drill was not double insulated. what could have been done to prevent this accident?
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