Cause analysis of power failure of Sichuan high-speed railway

Hello, what is the reason for the power failure of Sichuan high-speed railway? The power failure of Sichuan high-speed railway was caused by bad weather, system failure and cable falling off. The reasons for the power outage of Sichuan high-speed rail are as follows:

1, affected by some extreme weather, such as heavy rainfall, snowstorm, fog and strong wind, there will be power shortage.

There will be aftershocks after the earthquake, which may endanger the safety of train operation, so the power will be cut off.

3. Conductive foreign bodies: such as tin foil paper and kite wires containing metal wires. If one end touches the power supply line and the other end is grounded, the catenary will short-circuit and trip, resulting in the loss of power for the EMU.