3) Write classification of U.G. cable according to voltage.
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Classification of Underground Cables
Low-tension (L.T.) cables – upto 1000 V.
High-tension (H.T.) cables – upto 11,000 V.
Super-tension (S.T.) cables – from 22 kV to 33 kV.
Extra high-tension (E.H.T.) cables – from 33 kV to 66 kV.
Extra super voltage cables – beyond 132 kV.
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