(1) First aid for electric shock should make the person who gets an electric shock get rid of the power supply quickly, and the sooner the better, because the longer the current acts, the heavier the harm to human body.
(2) Leaving the power supply is to disconnect the switch or other circuit breaker of the part of the electrified equipment that the electric shock victim contacts, or to try to isolate the electric shock victim from the electrified equipment. Before leaving the power supply, the ambulance personnel shall not touch the injured directly with their hands, so as to avoid the ambulance personnel from getting an electric shock at the same time. If the electric shock victim is at a height, corresponding measures should be taken to prevent the injured person from falling from a height after leaving the power supply to form a compound injury.
(3) When the electric shock victim touches the low-voltage electrified equipment, the ambulance personnel should try to cut off the power supply quickly, such as turning on the power switch, unplugging the power plug, or using insulating tools, dry sticks, wooden boards, ropes and other non-conductive things to rescue the electric shock victim. They can also grab the dry clothes of the electrocuted person and drag them away (remember to avoid touching metal objects and the naked body of the electrocuted person). They can also put on insulating gloves and wrap their hands in dry clothes to rescue the electrocuted person. In addition, people can stand on insulating mats or dry wooden boards. In order to get the electrocuted person off the conductor, it is best to operate with one hand.
If the current enters the ground through the electrocuted person, and the electrocuted person holds the wire tightly, you can try to plug it under him with a dry board to isolate it from the ground. You can also break wires with dry wood, an axe or pliers with insulated handles. It is best to cut the thread in stages with pliers, one by one, and try to stand on an insulating object or a dry board.
(4) If the person who gets an electric shock touches the high-voltage live equipment, the ambulance personnel should quickly cut off the power supply or use insulating tools (wearing insulating gloves, insulating boots and insulating rods) suitable for the voltage level to rescue the person who gets an electric shock, and the ambulance personnel should pay attention to protecting themselves from the surrounding live parts during the rescue.
(5) If the electric shock occurs on the overhead line tower, for the low-voltage live line, if the power supply of the line can be cut off immediately, the power supply should be cut off quickly, or the ambulance personnel should quickly board the pole, fasten their seat belts, and then use wire cutters with insulating rubber handles to insulate the object from the power supply. For high-voltage live lines, if the power switch cannot be cut off quickly, the method of hanging short metal wires with sufficient cross-sectional area and appropriate length can be adopted. Cut off the power supply at the beginning. Before hanging, fix one end of the short wire on the tower or grounding down lead, and tie the other end with a heavy object. When throwing short wires, pay attention to prevent electric arc from hurting people or wire breakage from endangering personnel safety. No matter what level of voltage line the electric shock victim is on, rescuers should pay attention to prevent the possibility of falling from a height and touching other live lines again when disconnecting the electric shock victim from the power supply.