Crane Operator Certification Exam Prep · Question
A crane operator is instructed to perform a lift near a section of power lines that are confirmed to be de-energized and visibly grounded. According to CSA Z150, what minimum clearance distance is required from these de-energized, grounded power lines?
Even when power lines are confirmed de-energized and visibly grounded, CSA Z150 still requires a minimum safe working distance of 0.6 metres (2 feet) to be main
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Question: A crane operator is instructed to perform a lift near a section of power lines that are confirmed to be de-energized and visibly grounded. According to CSA Z150, what minimum clearance distance is required from these de-energized, grounded power lines?
Answer options: ✅ 0.6 metres (2 feet)
- Minimum 3.0 metres (10 feet)
- No specific clearance is required as they are de-energized and grounded.
- 1.5 metres (5 feet)
Correct answer: 0.6 metres (2 feet)
Explanation: Even when power lines are confirmed de-energized and visibly grounded, CSA Z150 still requires a minimum safe working distance of 0.6 metres (2 feet) to be maintained from them. This accounts for potential induction or unexpected re-energization. Therefore, option A is correct, not no specific clearance or larger distances for energized lines.
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Question explanations
- According to most Canadian provincial regulations, who is ultimately responsible for the safe operation of a c
- A crane's rated capacity decreases as the load radius:
- What is the minimum number of full wraps of wire rope that must remain on a hoist drum when the hook is in its
- Before setting up a mobile crane, what is the most important factor to assess regarding ground conditions?
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