How far should you keep a welder from overhead power lines during operation?

• A. At least 10 feet (3 meters) away.
• B. At least 5 feet away.
• C. At least 20 feet away.
• D. Directly under the lines.

Answer: (A)

Maintaining a safe distance from overhead power lines is essential to prevent electrical shock and arc-related hazards. The welding arc and equipment can create a conductive path or arc to a live line if you’re too close, energizing your equipment or metal parts and exposing you to serious injury. Keeping at least 10 feet (3 meters) away minimizes the chance of arcing or contact with the line, which is why that distance is the general minimum in many safety standards. More clearance may be needed for higher voltage lines, but 10 feet is the typical rule of thumb. Being directly under the lines or closer than this increases risk significantly, while 20 feet is a stricter precaution rather than the standard minimum.