An electrical worker was caught repairing a high-voltage power-line at a dizzying height in Son La Province, north Vietnam on May 16.br br Footage shows a worker sitting on cables wearing a harness as he fixes a damaged power line.br br Electrical workers in Vietnam often risk their lives fixing power lines at great heights. br br A witness told Newsflare: ''They are professionally trained workers and especially they are not afraid of heights. They spend 6 to 10 hours on the cables and even have lunch there.