When someone is electrocuted at low voltage, it is not possible to pull him away immediately, and it is necessary to cut off the power supply immediately or use insulators to pick the wires apart, so that the electrocuted person can be detached from the power supply. The human body is a good conductor of electricity, immediately pull away may cause the rescuer’s indirect electric shock, very dangerous. After cutting off the power supply or the electrocuted person from the power supply, according to the specific situation of the electrocuted person for on-site first aid. 1. When the electrocuted person is not seriously injured, he should rest quietly, don’t move, observe closely and call 120 to send to the hospital for examination. 2. The electrocuted person loses consciousness, the heart beats and respiration exists, should make the electrocuted person in the air circulation place comfortable, quiet lying down, untie the electrocuted person clothing, at the same time, call 120 sent to the hospital. 3. The electrocuted person is seriously injured, breathing and cardiac arrest, should immediately perform cardiopulmonary resuscitation, at the same time, call 120 sent to the hospital emergency. On the way to the hospital, can not terminate the first aid.