Excavator Operator Certification Exam Prep · Question
What is the minimum safe distance an excavator and its load must maintain from an overhead powerline operating at 750 V to 150,000 V in Ontario, according to electrical safety regulations (e.g., E.S.A. requirements)?
For powerlines energized from 750V to 150,000V, Ontario OHS Reg. 213/91, Section 188 requires a minimum approach distance of 3 metres for equipment. Higher volt
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Question: What is the minimum safe distance an excavator and its load must maintain from an overhead powerline operating at 750 V to 150,000 V in Ontario, according to electrical safety regulations (e.g., E.S.A. requirements)?
Answer options:
- 1 meter
- 2 metres ✅ 3 metres
- 4 metres
Correct answer: 3 metres
Explanation: For powerlines energized from 750V to 150,000V, Ontario OHS Reg. 213/91, Section 188 requires a minimum approach distance of 3 metres for equipment. Higher voltages require greater distances. There are specific exceptions for certain qualified personnel or conditions.
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Question explanations
- During a final inspection of an excavator, prior to beginning work, an operator notices significant play in th
- An excavator operator is preparing to dig a trench in cohesive soil. To achieve maximum breakout force, what a
- Which control typically governs the arm (or dipper arm) movement for an excavator?
- What condition might require sloping or shoring of a trench less than 1.2 meters (4 feet) deep?
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