What is the minimum safe clearance from energized overhead power lines for most cranes?

• A. 10 feet (3 meters)
• B. 2 feet
• C. 25 feet
• D. 50 feet

Answer: (A)

Keeping a safe distance from energized overhead power lines is essential to prevent electric shock and the risk of an electrical arc reaching the crane or hook. For most crane operations, the minimum safe clearance is 10 feet (3 meters). This gap is enough to reduce the chance of arcing or contact if the crane or load shifts, winds, or surfaces conduct electricity.

Higher voltage lines require larger clearances, but around typical work sites with standard distribution lines, 10 feet is the baseline you’ll usually rely on. Distances like two feet are far too close and dangerous because arcing can occur at much shorter gaps under various conditions, while 25 or 50 feet would unnecessarily hinder operations unless you’re dealing with unusually high-voltage lines or specific safety rules. Always follow site safety plans and applicable regulations for any particular job.