An excavator is operating on a site where overhead powerlines are present. The operator needs to dig near a pole for a new foundation. The lines are visibly slack, indicating they might be de-energized. What is the correct protocol before commencing work?

Question: An excavator is operating on a site where overhead powerlines are present. The operator needs to dig near a pole for a new foundation. The lines are visibly slack, indicating they might be de-energized. What is the correct protocol before commencing work?

Answer options:

• Proceed with extreme caution, assuming they are live until visually confirmed otherwise. ✅ Contact the utility company to verify the lines are de-energized and grounded, and obtain a work permit if required.
• Have a qualified electrician inspect the lines on-site for voltage.
• Maintain the 3-metre clearance as a precaution, even if they appear de-energized.

Correct answer: Contact the utility company to verify the lines are de-energized and grounded, and obtain a work permit if required.

Explanation: All powerlines must be treated as energized until the utility company has confirmed they are de-energized and grounded. Visual inspection is insufficient. Obtaining a work permit and clearance from the utility is mandatory to ensure worker safety, as per OHS regulations concerning electrical hazards (e.g., Ont. Reg. 213/91, Section 188).