On June 4, 2019, Beijing's electric power grid's load reached 203.3 million kilowatts. In theory, that means it can power 20 million air conditioners (at 1 kilowatt per hour) for one hour. Hong Dapeng, a power line inspector, is usually dispatched around the city to ensure the stable operation of the electrical network. He and his colleagues need to be extra careful on the job as they deal with high voltage power lines under the scorching sun. This is their story.

"My Day" is a CGTN special series that tells stories of ordinary people from all walks of life. We record one day in their life to get a glimpse of how they work, what they dream of and what keeps them going.