Assumptions used in Optimal Clear Width Calculator:
Line height: 30 ft.
Tree height: 75 ft.
Trees/Acre: 250
Risk Factor read from Line Strike Probability Chart:
@ 10 ft. clear width: 0.67
@ 25 ft. clear width: 0.31
System Reliability Improvement:
Links in PDF format require Acrobat Reader 4.0 or higher. The latest version is available free at:
