Conventional distribution line in Laos is overhead lines with medium voltage of 22 kilovolt. In the past there was 6.6 kV system, and in some area especially where the line connects to Vietnam grid, there is medium voltage with 33 kV.
Underground cables are used in the big cities like Vientiane capital and the world heritage city - Luangprabang (XLPE cables, PVC cables, electric wire and cables) .
There is also underwater cable across Mekong river to Thailand.
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