The minimum clearance between the ground and a 220 kV line is about_________________?
A. 4.3 m
B. 5.5 m
C. 7.0 m
D. 10.5 m
The minimum clearance between the ground and a 220 kV line is about_________________?
A. 4.3 m
B. 5.5 m
C. 7.0 m
D. 10.5 m