An electrically safe work condition will be achieved and verified by the following process:
- Determine all possible sources of electrical supply to the specific equipment. Check application up date drawings, diagram and identification tags.
- After properly interrupting the load current, open the disconnecting devices for each source.
- Where it is possible, visually verify that all blades of the disconnecting devices are fully open or that draw-out type circuit breakers are withdrawn to the fully disconnected position.
- Apply lockout/tag-out, devices in accordance with a documented and established policy.
- Use adequate rated voltage detector to test each conductor or circuit part to verify they are de-energized. Before and after each test, determine the voltage detector is operating satisfactorily.
- Where the possibility of induce voltages or stored electrical energy exists, ground the phase conductors or circuit parts before touching them. Where it could be reasonably anticipated that the conductors or circuit parts being de-energized could contact other exposed energized conductor or circuit parts, apply ground connecting devices rated for the available fault duty.
Five Behavioral Approaches will Improve Safe Work Places
- Determine the nature and extent of hazards before starting a job.
- Each employee should be satisfied that conditions are safe before beginning work on any job or any part of a job.
- All employees should be thoroughly familiar with and should consistently use the work procedures and the safety equipment required for the performance of the job at hand.
- While working, each employee should consider the effects of each step and do nothing that might endanger themselves or others.
- Each employee should be thoroughly familiar with emergency procedures.
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