3. Control Hazards
Once electrical hazards have been recognized and evaluated, they must be controlled. You control electrical hazards in two main ways:
- create a safe work environment and
- use safe work practices.
One way to implement this safety model is to conduct a job hazard analysis (JHA). Below is a simple JHA using three columns:
- Column 1. Break down the job into its separate steps.
- Column 2. Evaluate the hazard(s) inherent in each step.
- Column 3. Develop a hazard control to eliminate or mitigate hazards.
| Task | Hazards | Precautions |
|---|---|---|
| Removing the cover | Electric shock from exposed live wires | De-energize by opening circuit breaker or removing fuse |
| Removing the GFCI | Possible other live wires in opening | Test wires with appropriate voltmeter to ensure all wires are de-energized |
| Installing the GFCI | Possible connecting wires incorrectly | Check wiring diagrams to ensure proper connections |
| Replace cover and re-energize | Possible defective GFCI | Test GFCI |
Once the JHA is completed, use it to train employees who are not familiar with the job, for retraining if employees demonstrate a lack of knowledge, skills, or ability (SKAs). Make sure the JHA is reviewed each time an employee must perform a hazardous procedure.
Knowledge Check Choose the best answer for the question.
1-10. According to the Electrical Safety Model, what action is required after evaluating hazards?
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