The minimum clearance between the ground and a 220 kV line is about_________________?

Related Mcqs:

By which of the following methods string efficiency can be improved?

A. Using a guard ring B. Grading the insulator C. Using long cross arm D. Any of the above E. None of the above...

For aluminium, as compared to copper, all the following factors have higher values except:

A. specific volume B. electrical conductivity C. co-efficient of linear expansion D. resistance per unit length for same cross-section...

Series capacitors on transmission lines are of little use when the load VAR requirement is___________?

A. large B. small B. fluctuating D. any of the above...

The underground system cannot be operated above_________________?

A. 440 V B. 11 kV C. 33 kV D. 66 kV...

A uniformly-loaded D.C. distributor is fed at both ends with equal voltages. As compared to a similar distributor fed at one end only, the drop at the middle point is______________?

A. one-fourth B. one-third C. one-half D. twice E. none of the above...