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NCCCO Dedicated Pile Driver Practice Questions - NCCCO Dedicated Pile Driver Operator (DPD) Exam

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Under OSHA 1926 Subpart CC, when operating near energized power lines and the line voltage is unknown, what minimum clearance distance must be maintained for lines up to 350 kV unless the power has been confirmed de-energized and grounded?
Correct Answer:
20 feet

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