How much additional distance must be added for higher voltages above 50,000 volts?

For higher voltages exceeding 50,000 volts, the requirement to add distance is based on safety measures to ensure adequate clearance and minimize the risk of electrical faults or hazards. Adding 4 inches for every additional 10 kilovolts is established as a standard practice. This guideline helps ensure that the insulation and spacing comply with safety regulations, preventing electric arcs and ensuring protection for both equipment and personnel.

This increment is calculated to promote safe distances reflecting the increased risk associated with higher voltages, thereby enhancing operational safety in electrical environments. The rationale behind this addition is to accommodate the greater electrical stresses present at higher voltages, ensuring all safety protocols are met effectively.