The 10-foot rule in rigging is a strict safety mandate established by OSHA standard 1926.1408, requiring all crane and rigging operations to maintain a minimum clearance of 10 feet from energized overhead power lines rated up to 50 kilovolts (kV). This absolute boundary applies to the entire lifting envelope, including the crane boom, suspended load, rigging hardware, and tag lines (which must be non-conductive near power lines per OSHA 1926.1408(b)(5)).
When operating near transmission lines exceeding 50 kV, this clearance distance increases at specific intervals per OSHA 1926.1408 Table A. Electrocution is a leading cause of fatalities in heavy lifting. Adherence to this 10-foot envelope is critical because high-voltage electricity can arc across air gaps, causing catastrophic injuries even without direct physical contact between the rigging equipment and the power source.
Safe execution near live utilities demands meticulous lift planning and qualified personnel. Ensure your next high-risk project is executed safely by partnering with our expert crane rigging services.