Safety and work practicesQuestion 257 of 1506

What is the general rule in Part VIII about working on electrical equipment?

  1. Work on it only when it is live and guarded
  2. Do not work on it unless it is isolated
  3. Work on it only after the supervisor signs a permit
  4. Work on it only after the load is reduced
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Correct answer: Do not work on it unless it is isolated

Isolation is the default. Live work is allowed only when isolation is not feasible.

Source: Canada Occupational Health and Safety Regulations (SOR/86-304), Canada Occupational Health and Safety Regulations (SOR/86-304), Part VIII: Electrical Safety

Practice safety and work practices

Questions last reviewed: 18 October 2026