Name: Annual maintenance begins on one of the world's highest-altitude power links in Xizang
Uploaded: 2026-08-07T12:07:21+08:00
Duration: PT33.917S
Description: Annual maintenance has begun on the Ali-Central Xizang power grid link in southwest China's Xizang Autonomous Region. Workers will check high-altitude transmission facilities over 14 days. This marks the third major annual inspection since the project

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Annual maintenance has begun on the Ali-Central Xizang power grid link in southwest China's Xizang Autonomous Region. Workers will check high-altitude transmission facilities over 14 days. This marks the third major annual inspection since the project was put into operation.

Commissioned in 2020, the 1,689-kilometer transmission project, with towers averaging 4,572 meters above sea level, is one of the world's highest-altitude power transmission projects. It connected Ali Prefecture to Xizang's main power grid, ending the region's long-standing isolated power supply.

Emergency power vehicles, micro grids and backup generators have been deployed to help ensure a stable electricity supply for residents during the maintenance period.

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