Working Near High Voltage Cables SAFETY Electrocution can result from contacting or approaching underground or overhead power cables. NEVER approach overhead power lines with any part of the machine. ALWAYS use extreme caution. Before starting work in the vicinity of electric cables, inform the local power company of the work to be performed. Have them take the necessary steps to ensure safety. Be aware of the dangers when working around overhead electrical lines. High humidity may pose an electrical hazard even if your machine clears the overhead power lines. Even going close to high-voltage cables can cause electric shock, which may cause serious burns or even death.
Always maintain a safe distance (see the table) between the machine and the electric cable. Check with the local power company about safe operating procedure before starting operations. Know your margin of safety. If possible, have power to the lines disconnected. If disconnection is not possible, request a signal person for guidance to maintain at least the minimum distance required by law from the overhead lines. See the table at the bottom of the page for the safety margins. Be prepared for any possible emergency. Wear rubber shoes and gloves. Lay a rubber sheet on top of the seat, Do not touch the chassis with any exposed part of your body.
When working near high-voltage power lines, NEVER let anyone near the machine. If your machine should come to close or touch electrical lines, stop the machine and remain on the machine until the power company clears the lines and it is safe to get off or move the machine. Do not let anyone near the machine. If low power lines pose a greater hazard, have the power company remove the lines until your work is finished. WA430-6 1-33 Cable Voltage Minimum Safe Distance 100 - 200V 2 m 7 ft 6,600V 2 m 7 ft 22,000V 3 m 10 ft 66,000V 4 m 13 ft 154,000V 5 m 16 ft 187,000V 6 m 20 ft 275,000V 7 m 23 ft 500,000V 11 m 36 ft