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). This involves development of a chart:
- Column 1, breaking down the job into its separate task or steps;
- Column 2, evaluating the hazard(s) of each task, and
- Column 3, developing a control for each hazard. See the example below.
| Task Analysis | Hazard Analysis | Hazard Abatement |
|---|---|---|
| Removing the cover | Electric shock from exposed live wires | De-energize by opening circuit breaker or removing fuse |
| Removing old GFCI | Possible other live wires in opening | Test wires with appropriate voltmeter to ensure all wires are de-energized |
| Installing new GFCI | Possibly connecting wires incorrectly | Check wiring diagrams to ensure proper connections |
| Replace cover and re-energize | Possible defective GFCI | Test GFCI |
Knowledge Check Choose the best answer for the question.
4-4. Once electrical hazards have been recognized and evaluated, they must be _____.
You forgot to answer the question!