First cut off the power supply, and if you can, turn off the switch. If there is no or cannot find a switch, you can use a dry wooden stick or plastic insulator to separate the wire from the person who got the electric shock (you can knock it). When a fire or electric shock occurs, do not use water to extinguish the fire.

After the person is unconscious and in shock, drag him to a place with clear air and lie down. Use your thumbs to pinch the Renzhong point between his upper lip and the bottom of his nose. You can perform chest compressions on the injured person rhythmically, and finally call for help and wait for the medical staff to arrive