While estimating the overhead lines, if the number of poles required is 14, then what is the estimated number of earth sets required?

• A. 5
• B. 2
• C. 3
• D. 4

Answer: (D)

While estimating the overhead lines, the first and last pole is always earth connected and after every 3rd electrical pole, the fourth pole is earthed. Therefore, the approximate number of required ground set = 4