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Answer Posted / geetha
For 415 V :Ph-Ph-25 mm
Ph-E -20 mm
For 6.6 KV:Ph-Ph-90 mm
Ph-E -70 mm
for 11 KV : Ph-Ph-229mm
Ph-E-178 mm
for 11 KV : Ph-Ph-229mm
Ph-E- 178mm
for 33 KV : Ph-Ph-320mm
Ph-E-320mm
for 132 KV : Ph-Ph-1100mm if Lightning impulse = 550
Ph-E- 1100mm
Ph-Ph-1300mm if Lightning impulse = 650
Ph-E- 1300mm
for 220 KV : Ph-Ph-1900mm if Lightning impulse = 950
Ph-E-1900 mm
Ph-Ph-2100mm if Lightning impulse = 1050
Ph-E-2100 mm
| Is This Answer Correct ? | 28 Yes | 10 No |
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