Red Seal Electrician Practice
Safety and work practicesQuestion 183 of 1506

A disconnect switch is used only by authorized people. What must it have?

  1. A lock only authorized people can use
  2. A bright red paint colour on the handle
  3. A cover that opens without using a tool
  4. A label with the name of the maker
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Correct answer: A lock only authorized people can use

If only authorized people may operate the switch, it must have a locking device that only they can work.

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

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Questions last reviewed: 18 October 2026