Which of the system would require more insulation, a 400 kV ac line or – McqOptions

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1.	Which of the system would require more insulation, a 400 kV ac line or 400 kV dc line?
A.	400 kV ac
B.	400 kV dc
C.	Both will need same level of insulation
D.	Data is insufficient to decide
Answer» B. 400 kV dc

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