Why is it important to keep power lines clear, and how can this be achieved on a construction site?

• A. To save time by rushing around lines.
• B. To improve crane speed.
• C. To prevent electrocution and arc faults; use minimum clearance, maintain spotter, de-energize lines, barricade, and use insulated equipment as required.
• D. To reduce noise during operation.

Answer: (C)

Preventing electrical injury is the priority when lifting near power lines. Electricity can arc from live lines to crane components or the load if a safe distance isn’t kept, causing electrocution, serious injuries, and equipment damage. The best approach is to create and maintain an safe standoff at all times: follow the minimum clearance required by regulations and the crane manufacturer, have a trained spotter actively monitor the approach of the boom and load, and de-energize and lock out the lines if possible before lifting. Barricading the work area helps keep everyone outside the danger zone, and using insulated equipment and tools reduces the chance of current finding a path if a line is still energized. Planning with the utility, using non-conductive rigging when practical, and ensuring dry, well-maintained gear all contribute to safer operations. Rushing or increasing crane speed does not address the electrical hazard, and reducing noise does not impact line safety.