What does railway electrification mean?

The traditional train traction mode is changed to the electric traction mode powered by overhead cable or the third rail.

Railway electrification transformation refers to changing the traditional train traction mode (such as steam locomotive and diesel locomotive) into electric traction mode with overhead cable or third rail power supply. This is a modern railway technology. By changing the traction mode, the energy efficiency, safety and environmental protection of railway transportation can be improved.

Electrified railway, referred to as electrified railway for short, refers to the railway that can be used for electric trains, so it is named because it needs corresponding electrified equipment to provide power guarantee for trains along the railway.