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812 OSHA Focus Four Hazards
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Improper Use of Extension and Flexible Cords

Example of an Actual Accident

A fan connected to a 120-volt electrical system via an extension cord provided ventilation for a worker performing a chipping operation from an aluminum stepladder.

extension cord with damaged insulation wires are exposed
This wire has been damaged and shows exposed wires.

The insulation on the extension cord was cut through and exposed bare wires and energized conductors made contact with the ladder. The ground wire was not attached on the male end of the cord's plug. When the energized conductor made contact with the ladder, the path to ground included the worker's body, resulting in death.

What would you recommend?

Recommendation: Though it is possible to properly repair the extension cord, it is always best to replace an extension cord that is damaged. Yes, it may cost a little money to replace the extension cord. However, if you don't replace the extension cord, and it is not repaired properly a life can be lost and the company will be put at risk.

Knowledge Check Choose the best answer for the question.

7-7. What is the best strategy to eliminate the hazard from an extension cord that is damaged with a section of exposed wire?