karen@brightsparkelectrician.co.uk

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Electric Shock

Electric Shock

Most electric shocks are caused by people touching a live conductor with one part of the body and touching earth with the another. This can cause a current to flow through the body that can block the electrical signals between the brain and muscles; this has a number of effects:

  • Stopping the heart beating properly.
  • Stopping breathing.
  • Causing muscle spasms.
  • The effect of the shock is dependant on a number of factors including:
  • Size of voltage.
  • Part of the body in contact with electricity.
  • Whether there is water or dampness present.
  • Length of time the current flows. 

The following shows what could happen to the body with different amounts of current flowing during contact with electric supply. 

  • 0.5mA would cause very little sensation in the body. You would hardly know that you had received a shock.
  • 6mA causes muscular contractions.
  • 20mA causes difficulty breathing if the shock lasts one minute or more.
  • 50mA could cause ventricular fibrillation (heart stops its regular pumping action, blood circulation ceases and the body is starved of oxygen). 50mA is nearly always fatal.
  • 200mA of electric current causes cardiac arrest and ventricular fibrillation burns, and would be fatal.

For further Information, please do not hesitate to contact us.

Telephone: 01892 531728

Email: karen@brightsparkelectrician.co.uk

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