Bilgi ve Uygulama

Electrical Accidents

Author: Yaşar Acar
Translator: Ulvi Asil Yılmaz
Date: 24.02.2007

Our day, people meet a large part of their needs with electrical energy. In fact, if we consider a wristwatch from the simplest, and take into account that this wristwatch is worn 24 hours a day in most people, we can say that the use of electrical energy of this person is continuous. A wristwatch may not cause an electrical accident, but accidents happen through many electrical devices that we use in daily life, and the rate of these accidents is increasing. It is necessary to take the necessary safety measures to prevent accidents and to ensure protection against accidents in the electrical field as in all areas by constantly monitoring these safety practices. In addition to all these, first aid applications, especially in case of electric shock, have a great role in bringing many survivors back to life.

The first information to be considered and important in electric shocks.

  • Amount of current passing through the body
  • The path through which the current passes
  • Current exposure time
  • Body resistance

Effects of electrical energy on human organism,

  • Shocked
  • Loss of consciousness
  • Burns to varying degrees
  • Contractions
  • Cramps
  • Deterioration of the functioning of the kidneys
  • Respiratory arrest
  • Cardiac arrest

Human impact values in electrical energy can be evaluated as divided into four regions. Not every person is affected at the same rate.

  • Zone one: the current that human beings can feel first starts from 0.01 Ma and does not pose a major danger until 15-25 ma.
  • Second zone: starting from 15-25 ma, includes currents up to 50 MA. People exposed to these currents may lose consciousness after 30 seconds, respiratory and cardiac arrest may occur within 3-4 minutes and death may occur.
  • Third Region: 50 MA to 100 MA currents in the human, loss of consciousness, pulmonary edema, burns, if the arc is formed, serious and dangerous burns caused by this arc, kidney failures, such as conditions may occur.
  • Fourth Region: effects occur from 100 mA to 200 MA in the third region again

Even if all these regions are separated by classification, it is necessary to consider the effects of electric shock on a person who has suffered an electrical accident. The current passing through the chest area can create cramps in the chest muscles and stop breathing. Currents greater than 20 MA stimulate the muscles of the heart, leading to a breakdown of electrical balance in the heart. 

Even if an electrical accident occurs in harmless small currents, it affects people. Fear is formed, as a result of the human startle movement or even falls into a place. In short, people react to electricity, causing mechanical accidents and damage.