Safe Distance From Power Lines

Courtesy of St. Paul Travelers Electrical Safety: Safe Distance from Power Lines Safe Distance Table Voltage Distance <=50KV 10 Feet >50KV 10 Feet + 0.4 inch for each KV above 50 Note: 50 KV = 50,000 Volts   Additional Distance Needed Additional distance needed for:            3,000 volts above 50KV?     Answer: 3,000 volts x 0.4 inches    =     1.2 inches 1,000 volts Additional distance needed for:          30,000 volts above 50KV?     Answer:  30,000 volts x 0.4 inches     =      12,000 volt inches         =        12 inches or 1 foot                  1,000 volts                               1,000 volts                                          Rule: For each 30,000 volts above 50KV - Add one (1) foot of clearance distance. Example: 200KV overhead exposure - How much clearance is needed? 200,000 volts minus 50,000 volts   =   150,000 volts above 50KV. 150,000 volts divided by 30,000 volts/foot   =   5 feet of additional clearance is needed. Answer: 10 feet + 5 feet total clearance needed from 200KV overhead exposure.