Skin, like the insulating shell of human body, plays a certain protective role when getting an electric shock. When the human body gets an electric shock, the smaller the human body resistance, the greater the current passing through the human body, and the more dangerous it is. Therefore, it is wrong to say that the greater the human resistance, the more serious the damage.
Other factors affecting the degree of electric shock injury:
1, current size.
The greater the current passing through the human body, the more serious the injury. When the alternating current (50Hz) passing through human body exceeds 10mA (mA) and the direct current exceeds 50mA, it is difficult for the person who gets an electric shock to leave the power supply on his own, which is life-threatening.
2. The length of power-on time.
The longer the current is energized, the more serious the damage to human tissues and the more serious the consequences. Usually, the product of electric shock current and electric shock time is called electric shock energy to reflect the harm degree of electric shock.
3. Current frequency.
The commonly used alternating current with the frequency of 50-60 Hz is the most harmful to human body. The farther the frequency deviates from the power frequency, the less harmful it is to human body, that is, the current with the frequency of 50-60Hz is the most dangerous. If the current is less than or greater than 50 to 60Hz, the danger will be reduced.
Electric shock first aid method:
1, the battery is dead.
Don't panic if you get an electric shock when you leave the power supply. Immediately remove the electric shock victim from the power supply. The way to get an electric shock out of the low-voltage power supply is to turn on the nearby power switch, pull out the bolt or insurance and cut off the power supply. Pay attention to whether the single-pole switch is installed on the live line. If it is installed on the zero line by mistake, it cannot be considered that the power supply has been cut off. Cut off the power cord with a sharp weapon with an insulated handle.
2. ECG monitoring.
If the patient gets a slight electric shock, it only shows palpitation, dizziness and numbness of limbs. When the patient is conscious, he can only monitor the patient's electrocardiogram, observe the patient's breathing, and detect the patient's blood electrolyte to see if there is muscle damage. If the breathing and heartbeat of the electrocuted person have not stopped, the electrocuted person should lie flat and rest quietly, and don't let the electrocuted person walk.
3. Cardiopulmonary resuscitation.
If the electric current has an electric shock effect on the heart of the person who gets an electric shock, it is manifested as loss of consciousness and cardiac arrest. At this point, the patient should be given cardiopulmonary resuscitation and first aid immediately. Chest compressions should be emphasized. If conditions permit, artificial respiration can be carried out, which is a life-threatening situation At the same time, we should actively call 120 to send the patient to the hospital for treatment.