Minimum Clearances

Minimum Tree to Conductor Clearance for Distribution Voltage

Types of Trimming Growth Rate Distribution Voltage
0 to 4 kV 4 kV to 22 kV 22 kV to 33 kV
Topping Clearance Fast Growers 6 ft. 8 ft. 9 ft.
Slow Growers 4 ft. 6 ft. 7 ft.
Side Clearance Fast Growers 4 ft. 6 ft. 8 ft.
Slow Growers 2 ft. 4 ft. 6 ft.
Overhead Clearance Fast Growers 4 ft. 8 ft. 12 ft.
Slow Growers 2 ft. 6 ft. 12 ft.

Clearances acquired have a direct relationship to the trim cycle for any given work area. Greater clearances are required on fast growing tree species within a work area to maintain trim cycles.